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MODEL: 74MX540
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: 74MX540
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: 74MX540
SYMPTOM: Modification
CURE: Modification During production the spring pos. 70 has been modified from 16mm length to 14mm to match a similar change in the bracket pos. 2. This makes matching between the bracket and spring necessary during repair.For this reason a new service 12NC for pos 70 is created for the new spring.Below shows both spring (pos. 70) and their ordering 12NCs. Service codesDescription ============== =========== 4822 492 42713 Spring 16mm 4822 492 11413 Spring 14mm
MODEL: ACC-General
SYMPTOM: Codenumber information
CURE: Codenumber information From now on Dolby testcassette MTT-150 is available with service codenumber 4822 397 30271. Also the Dolby testcassette TCC-130 has become a service ordernumber 4822 397 30269. With one of these cassettes the Dolby adjustment can be achieved.
MODEL: ACT7580
SYMPTOM: improve the CD start-up behaviour
CURE: In order to improve the CD start-up behaviour, following parts have been changed: Capacitor 2815 deleted Capacitor 2823, 47pF (4822 122 33761) added Resistor 3830 changed to 1k (4822 051 30102) REMARKS : Modification is implemented from production start onwards.
MODEL: ACT7581
SYMPTOM: improve the CD start-up behaviour
CURE: In order to improve the CD start-up behaviour, following parts have been changed: Capacitor 2815 deleted Capacitor 2823, 47pF (4822 122 33761) added Resistor 3830 changed to 1k (4822 051 30102) REMARKS : Modification is implemented from production start onwards.
MODEL: ACT7582
SYMPTOM: improve the CD start-up behaviour
CURE: In order to improve the CD start-up behaviour, following parts have been changed: Capacitor 2815 deleted Capacitor 2823, 47pF (4822 122 33761) added Resistor 3830 changed to 1k (4822 051 30102) REMARKS : Modification is implemented from production start onwards.
MODEL: AE1595
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 303 14019Aerial 4822 443 10344Battery Cover 4822 101 11476Volume Control 4822 267 31921Earphone Jack 4822 240 10145Speaker 2.25 8 ohm
MODEL: AE1695
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 303 14021Aerial 4822 443 10345Battery Cover 4822 101 21248Volume Control 4822 267 31921Earphone Jack 4822 240 10146Speaker 2.25 4 ohm
MODEL: AE2045
SYMPTOM: Modification
CURE: Modification From week 9715 onwards, a new rotatable telescopic aerial is used. The two different aerials are not inter-changeable. Codenumbers: 4822 303 14018Aerial (not rotatable) 4822 303 14057Aerial (rotatable)
MODEL: AE2130
SYMPTOM: Only hum from speaker.
CURE: Receiver IC TEA5591A defective. (4822 209 60565)
MODEL: AE2130
SYMPTOM: The radio produces a very weak sound.
CURE: Check capacitor 2024.
MODEL: AE2140
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 303 14018Aerial 4822 443 10326Battery Cover 4822 101 11458Volume Control 4822 146 10505Transformer 120V 4822 146 10504Transformer 230V 4822 146 10515Transformer 120/230V 4822 498 10586Handle 4822 240 10142Speaker R102 4 ohm 4822 276 13763Push Switch (POWER) 4822 267 31468Earphone Jack 4822 209 62192IC TA7368P 4822 267 30738Mains Socket (VDE) 4822 265 20706Mains Socket (UL) 4822 277 21794Voltage Selector
MODEL: AE2140
SYMPTOM: Modification
CURE: Modification From week 9715 onwards, a new rotatable telescopic aerial is used. The two different aerials are not inter-changeable. Codenumbers: 4822 303 14018Aerial (not rotatable) 4822 303 14057Aerial (rotatable)
MODEL: AE2145
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 303 14018Aerial 4822 443 10326Battery Cover 4822 101 11458Volume Control 4822 146 10505Transformer 120V 4822 146 10504Transformer 230V 4822 146 10515Transformer 120/230V 4822 498 10586Handle 4822 240 10142Speaker R102 4 ohm 4822 276 13763Push Switch (POWER) 4822 267 31468Earphone Jack 4822 209 62192IC TA7368P 4822 267 30738Mains Socket (VDE) 4822 265 20706Mains Socket (UL) 4822 277 21794Voltage Selector
MODEL: AE2145
SYMPTOM: Modification
CURE: Modification From week 9715 onwards, a new rotatable telescopic aerial is used. The two different aerials are not inter-changeable. Codenumbers: 4822 303 14018Aerial (not rotatable) 4822 303 14057Aerial (rotatable)
MODEL: AE2340
SYMPTOM: A selected preset frequency is replaced by another frequency.
CURE: In case presets are used to change stations, the frequency of the last preset station may be lost, when waking up by Radio, . Temporarily an addendum sheet is packed by with the following content: Protecting preset stations when using the alarm RADIO mode. Your selected stored frequencies (presets) may be lost as a result of using the alarm RADIO mode.In order to safeguard your selected presets, please follow the 3 steps below : 1. Set the desired alarm time. 2. Press the POWER ON/OFF button twice. 3. Now set the alarm switch to RADIO mode. REMARKS : An Addendum sheet is added in the Instruction for Use of sets produced from week 9606 onwards. From April 1996 onwards, an updated Microprocessor IC will be mounted. This updated Microprocessor will safeguard the last preset frequency.
MODEL: AE2340
SYMPTOM: Display dim or no segments displayed
CURE: Check/replace C1 (22nF) and C4 (100nF).
MODEL: AE2340
SYMPTOM: The set is inoperative.Only the clock is displayed.
CURE: The set does not react on operating commands because the microprocessor gets in a hang-up situation. After pressing the reset button in the battery compartment, the set is functioning well again. Customer may not be aware that there is a reset switch inside the battery compartment. REMARKS : From week 9545 onwards, a label is added in the battery compartment to provide good eye-catching effect which was not given by the engraved RESET indication.
MODEL: AE2340
SYMPTOM: Memory presets lost after some time
CURE: When the batteries are almost empty, presets and time info get lost.
MODEL: AE2340
SYMPTOM: Additional information to Newsletter 96.02.01
CURE: Additional information to Newsletter 96.02.01: Sets produced with new uP are marked KZ0296xx onwards.
MODEL: AE2630
SYMPTOM: No reception at all.
CURE: IC TEA5713 defective.
MODEL: AE3205
SYMPTOM: Dial drum broken.
CURE: Replace the dial drum by a modified one (4822 528 90871) REMARKS : The modified dial drum has been built-in from productionweek 9318 onwards. The productioncode of sets with modified dial drum starts with KT0393.
MODEL: AE3350
SYMPTOM: Batteries run out quickly.
CURE: Remove R17 and connect a 1 kOhm resistor from the base of Q7 to the negative (-) of C43. REMARKS : Modification had been implemented in production from week 9745 onwards.
MODEL: AE3350
SYMPTOM: No audio from radio
CURE: Pin 28 of IC1 is 0.7 V in stead of 1.4 V. Check/replace IC1.
MODEL: AE3350
SYMPTOM: IC1 is defective.
CURE: IC1 is probably damaged by wrong polarity while using the AC/DC adaptor.IC1 CXA1019S is available via service code 4822 209 15034. Following text is added into IFU (via addendum) as a temporary solution. You can connect the set to the mains using a mains adaptor - Make sure that the local voltage corresponds to the voltage of the 3V adaptor. Important! - The 2.1 mm centre pin of the 5.5 mm adaptor plug must be set to minus pole, as indicated under the 3V DC IN socket. - Connect the mains adaptor to the 3V DC socket of the set and plug the mains adaptor into a wall socket.The battery supply will now be disconnected. - Always disconnect the mains adaptor if you are not using it. Note: Remove the batteries if you intend to operate the set permanently on the mains supply. For long term, protection circuitry will be added to prevent IC1 damage caused by wrong polarity supply. REMARKS : Addendum had been added for sets produced from week9634 onwards.
MODEL: AE3350
SYMPTOM: No sound from the radio.
CURE: Check soldering around C45.
MODEL: AE3405
SYMPTOM: Service manual, partslist
CURE: Service manual, partslist - The service codenumber for the volumepotentiometer item 3206, 3207 is 4822 102 10439
MODEL: AE3625
SYMPTOM: Set will come in a hang-up situation.
CURE: If the set is operated continuously, the batteries become so drain that the CPU logic states become indeterminate. The set will come in a hang-up position and remains this position even if fresh batteries are replaced. To reset the hang-up the empty batteries have to be removed, briefly press the RESET button (20) in the battery compartment and insert fresh alkaline batteries. After that, readjust the timer setting and the preset radio stations. To prevent that the radio is switched on accidently, use the LOCK-position when packing the radio or putting it away. REMARKS: In sets produced after week 9336, in Instructions For Use an addendum will be added. This publication will be followed by a service information A93-575
MODEL: AE3625
SYMPTOM: No sound at all.
CURE: Check whether wire from ferrite aerial is short-circuited on PCB.
MODEL: AE3625
SYMPTOM: The radio part does not switch off.
CURE: Check transistor 7032 (RN1410; 4822 130 63139).
MODEL: AE3625
SYMPTOM: Removing the empty ALKALINE batteries is very difficult.
CURE: Cut a 30 to 40 degrees chamfer at the edge of the hole (near 9/10 kHz switch) of the chassis bracket. REMARKS : Production will be corrected from 9332 onwards. This publication will be followed by a Service Information.
MODEL: AE3625
SYMPTOM: Directions for use
CURE: Directions for use For commercial reasons a new Direction For Use booklet (DFU) has been issued. Service codes for the new DFU are: 4822 736 21829 for /00, /18 4822 736 21831 for /17
MODEL: AE3625
SYMPTOM: Addition to electrical partslist
CURE: Addition to electrical partslist AC/DC Adaptor The rating specification for the AC/DC adaptor is: Output : DC 6V / 350 mA Plug : Positive centre pin (diameter 1.5mm) The following AC/DC adaptor types are available and fulfilled the specification. SBC6608/00 4822 272 10291 (for /00 and /18) SBC6608/17 4822 272 10293 (for /17) REMARKS: This publication will be followed by service information A93-575
MODEL: AE3650
SYMPTOM: FM sensitivity is too low.
CURE: FM IF is shifted because it might occur that is not properly aligned in production: In some cases the input signal for IF alignemnt was too strong. Re-align FM IF following the procedure in the Service Manual. Use weak input signal to avoid mis-alignment. REMARKS : From week 9546 onwards, alignment procedure at production is strictly controlled by using weak input signal.
MODEL: AE3650
SYMPTOM: Very poor FM reception.
CURE: Check/replace chip capacitor C11.
MODEL: AE3650
SYMPTOM: Speaker inoperative. Left channel head- phone inoperative.
CURE: Check soldering of capacitor C48.
MODEL: AE3650
SYMPTOM: Sometimes no sound from loudspeaker. Headphone output is OK.
CURE: Check C48.
MODEL: AE3650
SYMPTOM: The right hand channel produces almost no sound.
CURE: Check soldering of the volume potmeter
MODEL: AE3650
SYMPTOM: Maximum volume level is too low
CURE: Check soldering of R34
MODEL: AE3650
SYMPTOM: The radio does not receive any station.
CURE: The blue wire of the ferrite coil is partly not isolated and makes short circuit with the copper pattern tracks.
MODEL: AE3650
SYMPTOM: Disturbs
CURE: Occurs if battery voltage is lower then 0,8V Replace batteries
MODEL: AE3750
SYMPTOM: The display switches to radio when switching on, but no sound.
CURE: Check/replace Q41.
MODEL: AE3750
SYMPTOM: The radio does not switch off the sound off after switching off.
CURE: Check/replace Q41.
MODEL: AE3805
SYMPTOM: Spare part information
CURE: Spare part information The telescopic aerial (4822 303 30365) is no longer available, because the supplier can not deliver.This aerial can be replaced by 4822 526 10618. Although both initial length and extended length of 4822 526 10618 are shorter than 4822 303 30365 it can be mounted in AE3805 and functions well.
MODEL: AE3805
SYMPTOM: Service Manual
CURE: Service Manual Rear cabinet item 28 has servicecodenumber 4822 421 20051
MODEL: AE3805
SYMPTOM: Partslist
CURE: Partslist - The service codenumber for IC101 should read 4822 209 62924
MODEL: AE3905
SYMPTOM: Volume up/down does not work correct. Sometimes power switches off.
CURE: The AE3905 has an automatic LOW POWER SHUT OFF circuit. For values see Service Manual AE3905 page 21, 22. If this phenomenon occurs with batteries only - maybe that there is a high voltage drop (about 0,5 - 0,7V) at the battery springs due to oxidation. In this case clean the contacts with an emery paper or a contact file (or exchange it). If this phenomenon occurs with external supply only - check if the supply delivers at least 3V under load. The voltage drop at diode 6283 has to be less or equal than 0,3V (Schottky diode).
MODEL: AE4200
SYMPTOM: Weak sensitivity of World time rotary switch
CURE: New contact plate 4822 290 81622 REMARKS : In order to obtain better contact result of the World Time Rotary switch, from week 9321 onwards a new Contact Plate is used in production. Service code for the new contact plate reads 4822 290 81622.
MODEL: AE4230
SYMPTOM: Radio part inoperative.
CURE: Check soldering of volume potmeter R3107.
MODEL: AE4230
SYMPTOM: Clock is two minutes slow every day.
CURE: Check Xtal 5404 (4822 242 81016).
MODEL: AE6545
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10319Battery Cover 4822 101 11457Volume Control 4822 267 31862Headphone Jack 4822 242 10423Headphone AY3655 w/winder
MODEL: AE6550
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10321Battery Cover 4822 101 11457Volume Control 4822 267 31862Headphone Jack 4822 240 10141Speaker 40mm 7 ohm 4822 242 10423Headphone AY3655 w/winder
MODEL: AE6745
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 423 41275Battery Cover 4822 102 10472Volume control 4822 466 10677Zebra connector 4822 410 10534Rubber Keypad 4822 267 31863Headphone Jack 4822 135 00051LCD Display 4822 242 10423Headphone AY3655 w/window
MODEL: AE6775
SYMPTOM: No battery contact for some battery types only.
CURE: The ribs for fixing the battery contact wire are too close together for batteries with large plus-pole diameter. For such battery types the plus-pole of the upper battery will not contact the wire properly. Service solution: Cut the inner ribs with a knife REMARKS : Modified Cabinets are used in production from week 9947 onwards.
MODEL: AE6780
SYMPTOM: No battery contact for some battery types only.
CURE: The ribs for fixing the battery contact wire are too close together for batteries with large plus-pole diameter. For such battery types the plus-pole of the upper battery will not contact the wire properly. Service solution: Cut the inner ribs with a knife REMARKS : Modified Cabinets are used in production from week 9947 onwards.
MODEL: AJ3040
SYMPTOM: Leakage of LED display segment.
CURE: Change resistor 3004 (connected to pin 25 of IC LM8560) from 220k to 560k (4822 116 52292). REMARKS : Modification introduced in production from week 9523 onwards.
MODEL: AJ3040
SYMPTOM: Modification
CURE: Modification Due to shortage of IC CXA1019 in production, the radio board has been changed. In the new radio board, IC TEA5713 (4822 209 31065) has been used. REMARKS : Date of introduction (with factory change code KT02..) : AJ3040/17, AJ3240/17 from week 9520 onwards. AJ3040/00 from week 9527 onwards.
MODEL: AJ3080
SYMPTOM: The fuse is blown out.
CURE: The fuse will blow if the CLOCK switch is set to ALARM and the SLUMBER button is pressed. The problem can be soved by replacing jumper 9022 by a 1k resistor (4822 050 11002). REMARKS : Modification has been implemented in production from week 9910 onwards.
MODEL: AJ3140
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 423 41163Battery Cover 4822 101 21256Volume Control 4822 146 10451Transformer 120V 4822 146 10452Transformer 120V White 4822 146 10448Transformer 230V 4822 146 31456Transformer 120/230V 4822 146 10514Transformer 240V BS 4822 146 10679Transformer 240V SAA White 4822 410 10398Knob-Clock Function 4822 410 10417Knob-Clock Function White 4822 209 32851IC LM8562 4822 130 90817Display LTC637D1G 4822 276 13577Tact Switch 4822 240 10118Speaker 2.5 8 ohm 4822 272 10225Voltage Selector
MODEL: AJ3150
SYMPTOM: Leakage of LED display segment.
CURE: Change resistor 3004 (connected to pin 25 of IC LM8560) from 220k to 560k (4822 116 52292). REMARKS : Modification introduced in production from week 9523 onwards.
MODEL: AJ3150/11
SYMPTOM: Clock runs too fast or too slow.
CURE: Symptom occurs only in AJ3150/11 which runs on Quartz reference. Erroneously the optional solder-bridge on the clock Printed Circuit Board has been short circuited instead of being open. This results in a deviation of the time adjustment, because the mains frequency is now injected into the clock IC as well and affects the Quartz reference frequency. Solution : Open solder bridge. To do so remove the top cabinet, turn over the Clock Printed Circuit Board and remove the solder bridge between 3004 and 6003 (near printing 051 17734) by soldering iron. REMARKS : Modification is implemented in production from week 9535 onwards with factory change code KT02. The position of the solder bridge is also shown on the figure in newsletter 62.
MODEL: AJ3240
SYMPTOM: Modification
CURE: Modification Due to shortage of IC CXA1019 in production, the radio board has been changed. In the new radio board, IC TEA5713 (4822 209 31065) has been used. REMARKS : Date of introduction (with factory change code KT02..) : AJ3040/17, AJ3240/17 from week 9520 onwards. AJ3040/00 from week 9527 onwards.
MODEL: AJ3250
SYMPTOM: The volume of the audio signal is too low.
CURE: Replace capacitor C2123.
MODEL: AJ3280
SYMPTOM: Replacement information
CURE: Replacement information - Because the dual alarm clock IC TMS3459B (4822 209 50572) is no longer available, another IC LM8562 (4822 209 32851) is suggested to substitute. LM8562 is pin to pin compatible to TMS3459B except that one resistor for CR/OSC input port (pin 16) has to be changed. In series a resistor (R1) of 100kOhm and a potentiometer (R2) of 50kOhm has to be connected between this pin and earth. REMARKS : R2 should be adjusted to obtain an oscillating frequency of 2.4 kHz +5/-15Hz, measured on pin 16 of IC LM8562 when no AC power is supplied. This publication will be followed by a service information.
MODEL: AJ3282
SYMPTOM: Replacement information
CURE: Replacement information - Because the dual alarm clock IC TMS3459B (4822 209 50572) is no longer available, another IC LM8562 (4822 209 32851) is suggested to substitute. LM8562 is pin to pin compatible to TMS3459B except that one resistor for CR/OSC input port (pin 16) has to be changed. In series a resistor (R1) of 100kOhm and a potentiometer (R2) of 50kOhm has to be connected between this pin and earth. REMARKS : R2 should be adjusted to obtain an oscillating frequency of 2.4 kHz +5/-15Hz, measured on pin 16 of IC LM8562 when no AC power is supplied. This publication will be followed by a service information.
MODEL: AJ3290
SYMPTOM: The Clock set button can get stuck inside
CURE: The Clock set button can get stuck inside when too much force is applied on the button. A rib will be added on the top cabinet as stopper. REMARKS : Modification will be implemented in production from week 9948 onwards.
MODEL: AJ3630
SYMPTOM: Alarm 1 sometimes inoperative.
CURE: Check soldering of switch S1012.
MODEL: AJ3630
SYMPTOM: Several display segments defect.
CURE: Check supply diode 6003
MODEL: AJ3630
SYMPTOM: The sound level is very low.
CURE: Check/replace capacitor C2014 near the endstage IC
MODEL: AJ3630
SYMPTOM: Set does not operate on 9V back up battery.
CURE: Mains supply must be connected for timer and radio function.
MODEL: AJ3720
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use The Alarm 2 does not function on Radio preset 1. An addendum sheet with the following message is added to notify customers: In the radio wake-up alarm mode, the PRESET 1 station operates on ALARM 1 only and not ALARM 2.
MODEL: AJ3740
SYMPTOM: Alarm 2 does not function on radio preset 1
CURE: In the radio wake-up alarm mode, the preset 1 station operates on alarm 1 only and not alarm 2. Microprocessor IC with modified software will be implemented in production from week 9748 onwards.
MODEL: AJ3740
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use The Alarm 2 does not function on Radio preset 1. An addendum sheet with the following message is added to notify customers: In the radio wake-up alarm mode, the PRESET 1 station operates on ALARM 1 only and not ALARM 2.
MODEL: AJ3800
SYMPTOM: Change diode 7409
CURE: Change diode 7409 - To prevent the damaging of the diode 7409 during the charging up of cap. 2113 (1,000F), diode 7409 has been changed from 1N4148 into 1N4001 (4822 130 31438).
MODEL: AJ3802
SYMPTOM: Change diode 7409
CURE: Change diode 7409 - To prevent the damaging of the diode 7409 during the charging up of cap. 2113 (1,000F), diode 7409 has been changed from 1N4148 into 1N4001 (4822 130 31438).
MODEL: AJ3840
SYMPTOM: No sound from radio or cassette part.
CURE: Check soldewring around C34.
MODEL: AJ3840
SYMPTOM: The tape deck speed is sometimes too low
CURE: Check/replace the speed control potmeter
MODEL: AJ3840
SYMPTOM: Replacement tip
CURE: Replacement tip - If clock IC TMS3459BNL is not available, it is suggested to replace it by LM8562B (4822 209 32851); also change the value of the following parts : R122 (pin 16 to ground) to be changed to 180k C109 (pin 15 to pin 16) to be changed to 0.0033uF
MODEL: AJ3920
SYMPTOM: No reaction on some buttons.
CURE: Check cable between CN1845 and CN1846 (wire 9). Cable replaced.
MODEL: AJ3920
SYMPTOM: Noise is audible in stand-by mode.
CURE: The noise level can be reduced by following modification: 1. Change 3214 and 3216 from 10 kOhm to 1 kOhm (4822 050 21002) 2. Change 2209 and 2212 from 1 uF to 10 uF (4822 124 40248) 3. Relocate 3217.Solder it to the - pole of 2214 and the ground pin of 3215. REMARKS : Modifications will be implemented in production from week 9818 onwards.
MODEL: AJ3920
SYMPTOM: Noise is audible in stand-by mode.
CURE: Additional to newsletter issue PA98.01.01: In order to improve the distortion at maximum volume, capacitors 2210 and 2213 should be changed to 4.7nF (4822 126 11714).
MODEL: AJ3920
SYMPTOM: The CD part gives ER, does not find the focus point.
CURE: Check cable at CN1801 for interruption.
MODEL: AJ3920
SYMPTOM: CD player gives error, does not find focus.
CURE: Pin 5 of IC7801 bad soldered. Pin 5 resoldered.
MODEL: AJ3920
SYMPTOM: After some time the CD player is inoperative.
CURE: Replace IC7842 (4822 209 32852)
MODEL: AJ3920
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AJ3920
SYMPTOM: Modification
CURE: Modification Item 2309 is changed from 1000uF/10V to 1000uF/16V (4822 124 40201) to safeguard enough safety margin. REMARKS : Modification is implemented in production from week 9620 onwards.
MODEL: AJ3925
SYMPTOM: Noise is audible in stand-by mode.
CURE: The noise level can be reduced by following modification: 1. Change 3214 and 3216 from 10 kOhm to 1 kOhm (4822 050 21002) 2. Change 2209 and 2212 from 1 uF to 10 uF (4822 124 40248) 3. Relocate 3217.Solder it to the - pole of 2214 and the ground pin of 3215. REMARKS : Modifications will be implemented in production from week 9818 onwards.
MODEL: AJ3925
SYMPTOM: Noise is audible in stand-by mode.
CURE: Additional to newsletter issue PA98.01.01: In order to improve the distortion at maximum volume, capacitors 2210 and 2213 should be changed to 4.7nF (4822 126 11714).
MODEL: AJ3925
SYMPTOM: Modification
CURE: Modification From May 1998 onwards, new CD boards 'CD97 MK2' and CDM 'CD94V5' are used.A new Service Manual 4822 725 26193 is published for the new generation. REMARKS : The production code of the new generation is 'KT02'.
MODEL: AJ3925
SYMPTOM: Modification
CURE: Modification To improve distortion and amplification range, the following parts are changed from production start onwards C2210 and C2213 are changed to 4.7nF (4822 126 11714) R3201 and R3204 are changed to 6.8kOhm (4822 116 83961) R3202 and R3205 are changed to 27kOhm(4822 116 52264) R3221 and R3222 are changed to 18kOhm(4822 116 52251) REMARKS : Changes are applied on sets of new generation with production code KT-02 only.
MODEL: AJ3930
SYMPTOM: After some time sound too weak.
CURE: Check/replace IC 7400.(TMP47C600RF)
MODEL: AJ3930
SYMPTOM: No CD function.
CURE: To improve the oscillating function of the CD CPU: Change 2402 from 100pF into 15pF. Change 3405 from 10k into 0R (jumper). Add resistor (item 3420) of 330k parallel to item 2403. REMARKS : This modification is implemented in production.
MODEL: AJ3930
SYMPTOM: Tuning hum noise is audible when 7400 is replaced.
CURE: 4822 209 32849 is the microprocessor IC (7400) with latest software. When it is used to replace the IC of old version, the following 2 parts should be added. 22534822 121 5138710nF/16V 20% 62514822 130 34173Zener diode 5.6V Please refer Service Information A93-584 (4822 725 24559) for the location of new componenets
MODEL: AJ3930
SYMPTOM: The LED display is missing some segments.
CURE: This fault is caused by diodes item 6454, 6455 which are defective. Solution: Change 6454 and 6455 from 1N4148 into 1N4001 (4822 130 31438). Add 6444 (1N4001) in series with 6454, and 6445 (1N4001) in series with 6455. REMARKS : This modification is implemented in production.
MODEL: AJ3930
SYMPTOM: DRAM noisy, playability of CD poor.
CURE: To reduce DRAM noise and to improve the playability of CD discs, replace jumper 9051 with resistor 10 Ohm (4822 050 21009). REMARKS : This modification is implemented in production.
MODEL: AJ3930
SYMPTOM: Several segments of the time display are inoperative.
CURE: Diode 6455 is defect causing the wave on pin 2 (display) to be too low.
MODEL: AJ3930
SYMPTOM: RCD1.2D DISC DRIVE - service hint to detect a bad
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AJ3930
SYMPTOM: Corrections Service Manual
CURE: Corrections Service Manual The service code for the I.F.U. should read: 4822 736 21868I.F.U. for AJ3930/17 4822 736 21869I.F.U. for AJ3930/00/01/04/05 and /06
MODEL: AJ3930
SYMPTOM: Clock Alignment
CURE: Clock Alignment - The alignment procedure for Clock should be moved to page 9 (CS 58 937) and corrected as below. CLOCK ALIGNMENT __________________________________________________________________ | DC INPUT| ADJUST |O/P|FREQUENCY COUNTER| |_____________________|________|_______|_________________________| |Connect DC 9V at 9107|3454|[3]| Freq. = 2.4 kHz | |(MBB battery input)|| | +5/-15 Hz | |_____________________|________|_______|_________________________| REMARKS: This publication will be followed soonest by a service information
MODEL: AJ3935
SYMPTOM: Transformer hum is audible.
CURE: The hum is caused by vibration of the metal transformer bracket (item 502). For service purpose the metal bracket can be removed without substitution. REMARKS : In production, a rubber foam of 20 x 25 x 26 mm will be placed between top of transformer and Top Cabinet (item 427). This will protect the printed board from being damaged during transit. The modification has been implemented in production from week 0014 onwards.
MODEL: AJ3935
SYMPTOM: parts are changed to improve distortion at maximum volume
CURE: following parts are changed to improve distortion at maximum volume. Resistors 3201 and 3204 changed to 820R (4822 117 11454) Resistors 3221 and 3222 changed to 3.3k (4822 051 20332) REMARKS : Modification is implemented from production start onwards.
MODEL: AJ3940
SYMPTOM: The transformer hum is audible.
CURE: Hum is caused by the vibration of shielding plate which is mounted on top of mains transformer. The shield plate is a construction of 3 metal layers which are sticked together by means of double-sided adhesive tape. If the layers are not pressed together properly, the shield plate will vibrate. To solve the problem, we suggest to dismantle the shield plate and hammer it against a solid surface. REMARKS : From production week 9905 onwards, a press jig has been used to ensure shield plates are well pressed.
MODEL: AJ3940
SYMPTOM: Disc clamper on CD Door is loose out.
CURE: The dimension of the latch on the CD Door to lock the clamper is out of specification.Service solution is to add black glue on the latch. REMARKS : Mould of CD Door is modified and implemented in production from week 9838 onwards.
MODEL: AJ3940
SYMPTOM: Additional information to Service Newsletter PA99.02
CURE: The transformer hum can be further reduced by adding 2 pieces of sponge (about 20x15x2mm) between transformer and shield plate. REMARKS : Modification has been implemented in production from week 9902 onwards.
MODEL: AJ3940
SYMPTOM: Correction to IFU :
CURE: Correction to IFU : - To set WEEKEND SLEEPER, only following steps are necesary. 1. Select the alarm you wish to deactivate by pressing the ALM 1 or 2 button.Within 5 seconds the display shows the set alarm time. Briefly press the WEEKEND SLEEPER once. -> If the weekend sleeper is activated, zz will appear in the display for ALARM 1 or 2. 2. To cancel the weekend sleeper function, repeat step 1 until zz no longer appears in the display. REMARKS : Errata sheet will be inserted from week 9831 onwards. IFU will also be updated.
MODEL: AJ3940
SYMPTOM: Correction to Electrical Partslist :
CURE: Correction to Electrical Partslist : The Service codenumber of the Voltage Selector for /01 version should read 4822 272 10366.
MODEL: AK501
SYMPTOM: Poor tracking and groove jumping.
CURE: Where instances of poor tracking or groove jumping occur with the above record players it is recommended that the following points are checked. 1. Ensure the lead out wires from the pick-up arm pivot are not restricting the movement of the arm. 2. The pick-up arm support may be defective.Either replace this item or remove any excess flashing from the moulding as shown.
MODEL: AK501
SYMPTOM: Spare part information
CURE: Spare part information Please mark that there are two production centres for the AK501 record player, being identified by AK501/20 and AK501/40 although the appearance/features are the same. The belt however has different dimensions: 4822 358 20355 is for AK501/40 4822 358 20372 is for AK501/20 Please check type/version before deciding which code should be used. REMARKS : This information is a correction of Newsletter 50.01. Codenumbers were wrong stated.
MODEL: AK540
SYMPTOM: Set cannot be used as stand alone set.
CURE: Because of the hum problem when record player is used with Philips Midi Systems, the ground wire WCB20 inside the set has been deleted. This makes that the set can only operate together with Philips Midi System. REMARKS : From week 9512 onwards, a label will be stuck on the display box of AK540. Text, printed on the label: Remark: Recommended to use only with Philips Midi Hi-fi System : AS440, AS450, AS540, AS550, AS640, AS650.
MODEL: AK601
SYMPTOM: Faulty play when in programme mode
CURE: It has been found in some cases that the start of an unwanted track is sometimes played during a programme of selected tracks. This particular fault occurs only with early production players and where the pause time between the tracks on a disc is less than two seconds. To overcome the problem microprocessor IC7840 should be replaced with a later software version type INS8050-11RTZ/N.The new IC is now supplied under the same code number as the earlier version 4822 209 62493.
MODEL: AK601
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: AK601
SYMPTOM: Jumping on CD playback.
CURE: Replace part 122 on exploded view in service manual.The plastic strip wears due to the ball bearing.
MODEL: AK601
SYMPTOM: Loading mechanism: changing item 132
CURE: Loading mechanism: changing item 132 Item 132 might move sidewards. Because of this, it can be clamped on the left side of the tray switch. To overcome this problem the switching part from item 132 has been improved. The modified part will be used from production week 9049 onwards. The service codenumber remains 4822 402 50281.
MODEL: AK601
SYMPTOM: Manual, Partslist
CURE: Manual, Partslist - Please add the following items to the manual Item : Service codenumber : Description : 5850 4822 242 72565 Resonator 8.46 MHz 5851 4822 242 72565 Resonator 8.46 MHz
MODEL: AK601
SYMPTOM: Service hint
CURE: Service hint When reading a disc, the display shows an ERROR message. The set is not able to read the T.O.C. and will not start to play. Hint : Verify the production period on the CDM Paper label : 9135 upto and including 9138 Inkjetmark : 9134.4A upto and including 9138.4A During this period wrong grease is used causing too high friction of the swing arm. In that case the CDM has to be replaced. From 9139 or 9138.4B onwards, this error is retrieved.
MODEL: AK601
SYMPTOM: Loading mechanism called : loading 88,
CURE: Loading mechanism called : loading 88, - Frame (item 502) will be changed from week 9015 onwards. The new frame (4822 464 50822) is not compatible with the old one (4822 464 50715). Both frames are not interchangeable without a modification.As long as the old frame is available the old frame can be exchanged without a modification. If the old frame is no longer in stock, it has to be replaced by the new one and the motor (item 131) on the frame has to be replaced too. New frame : 4822 464 50822 + New motor : 4822 361 21408.
MODEL: AK601
SYMPTOM: Service hint (Program mode)
CURE: Service hint (Program mode) - If a disc, of which the pause time between two tracks is < 2 seconds, is played-back via the program mode, the right track is not always played-back immediately. To prevent this problem IC7840 can be replaced by a P with software version 3. The P is than marked INS8050-11 RTZ and has service codenumber 4822 209 62493. The new P has been built-in from week 9032 onwards. This P has also been applied in set FW2012 too.
MODEL: AK601
SYMPTOM: Changes
CURE: Changes - Some changes have been done in course of production : *To improve 100 Hz hum and noise when using RC5 2901 has been changed from 15nF to 6.8nF 3600 has been changed from 10 ohm to 560 ohm 3906 has been changed from 10k ohm to 6.8k ohm 3908 has been changed from 2.7k ohm to 10k ohm *To improve brightness of LCD 3701 has been changed from 1.5k ohm to 6.8k ohm 3702 has been changed from 820 ohm to 4.7k ohm 3709 has been changed from 1.5k ohm to 10k ohm 2700 has been changed from 220 a) *To improve the influence of radiation some coils have been added.
MODEL: AK601
SYMPTOM: AK601 from PCB .7 onwards
CURE: AK601 from PCB .7 onwards (see Service Info A91-123). - 12NC for microprocessor (pos. 7840) should be read as 4822 209 31203.
MODEL: AK601
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK601
SYMPTOM: Loading mechanism : changing item 132
CURE: Loading mechanism : changing item 132 Item 132 might move sidewards. Because of this, it can be clamped on the left side of the tray switch. To overcome this problem the switching part from item 132 has been improved. The modified part will be used from production week 9049 onwards. The service codenumber remains 4822 402 50281.
MODEL: AK630
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: AK630
SYMPTOM: Additional information to newsletter 21.06 CD g
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK640
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: AK691
SYMPTOM: Parts
CURE: Parts - The service codenumber for IC TMP47C400AF-6867 should read 4822 209 62993.
MODEL: AK691
SYMPTOM: Part number corrections
CURE: Part number corrections - The part numbers of two items in the disc hold down assembly listed on page 25 in the service manual are transposed. The correct part numbers are: Item 412 402 61223 Item 414 528 70575
MODEL: AK691
SYMPTOM: Service Manual
CURE: Service Manual In the service manual the code numbers of items 412 and 414 have been interchanged. The correct code numbers are : item 4124822 402 61223 item 4144822 528 70575
MODEL: AK696
SYMPTOM: Service Manual
CURE: Service Manual In the Service Manual the codenumbers of items 412 and 414 have been interchanged. The correct numbers are: item 4124822 402 61223 item 4144822 528 70575
MODEL: AK696
SYMPTOM: Parts
CURE: Parts - The service codenumber for IC TMP47C400AF-6867 should read 4822 209 62993.
MODEL: AK698
SYMPTOM: Service Manual
CURE: Service Manual In the Service Manual the codenumbers of items 412 and 414 have been interchanged. The correct codes are: item 4124822 402 61223 item 4144822 528 70575
MODEL: AK698
SYMPTOM: Parts
CURE: Parts - The service codenumber for IC TMP47C400AF-6867 should read 4822 209 62993.
MODEL: AK701
SYMPTOM: No tray out function
CURE: Checked pins 47 and 48 of IC 7580 for switching signals, these were found to be OK. Fault was found to be caused by T7521 being open circuit.
MODEL: AK701
SYMPTOM: No drive to the carousel motor.
CURE: Check/replace T7507 - BC327/40.Transistor uprated to a BC369.
MODEL: AK701
SYMPTOM: Bad playability with scratched CDs (Drop-outs, skips tracks)
CURE: Customer complaint: Other sets are able to play the same disc without any problem. CAUSE: Complaint set fulfils the specification, but tracking balance adjustment is not optimized for scratched CDs. SOLUTION: A more accurate adjustment of the TRACKING BALANCE will improve the playability of the set. Apply at measuring point 4 and 5 a low pass RC-filter with a time constant of approx. 3.5 seconds. The measured DC-level on the oscilloscope follows the TE-signal delayed. Adjust with potentiometer 3806 the measured value on the oscilloscope to 0V DC +/- 5 mV. In more detail explained in service information A93-368. REMARKS : This publication will be followed by service information A93-368.
MODEL: AK701
SYMPTOM: Poor loading function (CDs damaged)
CURE: Check the set-up at the customer's place. REMARKS : If the set is placed on an uneven surface or if pressure is applied from the underside of the set (e.g. placed on cables or other parts) the tray will not open/ close correctly: The CD is not centered above the turntable - the upcomming RCD-lift (item 439) will clamp the disc somewhere between table and magnet bracket (item507). After STOP/OPEN the CD might fall into the housing where a closing tray can damage it.
MODEL: AK701
SYMPTOM: Tray motor (item 1004) overheated; Melted bottom around tray motor
CURE: CAUSE: Due to mechanical tolerances of the tray inner switch (item 1006), this switch is actuated too late. That is why the tray moves too far inside and causes a tension at the gear which lets the gear wheel (item 421) and the worm wheel (item 418) stuck together. Than the tray motor blocks and overheats. SOLUTION: Adjust gap between contacts of the inner tray switch and the middle contact. The distance should read 0.2 till 0.3 mm by bending contact spring of inner tray position. (In service information A93-368 this tray and adjust dimensions have been drawn.) Check each set brought in for repair on: Transistors 7520 till 7525 of motor bridge circuit and NFR resistor 3521 are OK. Gear wheel (item 421) and worm wheel (item 418) on mechanical damage. REMARKS : This publication will be followed by a service information A93-368.
MODEL: AK701
SYMPTOM: Spindle toothwheel mounted on bottom plate broken.
CURE: replace bottom plate 4822 444 50697
MODEL: AK701
SYMPTOM: Part number changes IC7580 and IC7815
CURE: Part number changes IC7580 and IC7815 - IC7580 The part number given in the service manual for microprocessor IC7580 (4822 209 62578) is incorrect.The correct part number is 4822 209 63798. IC7815 From production week 9041 microprocessor IC7815 was changed from P8049 to INS8049/11QWG/N part number 4822 209 63799.The later type can be used as a replacement for the earlier version without any additional modifications.
MODEL: AK701
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK703
SYMPTOM: Bad playability with scratched CDs (Drop-outs, skips tracks)
CURE: Customer complaint: Other sets are able to play the same disc without any problem. CAUSE: Complaint set fulfils the specification, but tracking balance adjustment is not optimized for scratched CDs. SOLUTION: A more accurate adjustment of the TRACKING BALANCE will improve the playability of the set. Apply at measuring point 4 and 5 a low pass RC-filter with a time constant of approx. 3.5 seconds. The measured DC-level on the oscilloscope follows the TE-signal delayed. Adjust with potentiometer 3806 the measured value on the oscilloscope to 0V DC +/- 5 mV. In more detail explained in service information A93-368. REMARKS : This publication will be followed by service information A93-368.
MODEL: AK703
SYMPTOM: Poor loading function (CDs damaged)
CURE: Check the set-up at the customer's place. REMARKS : If the set is placed on an uneven surface or if pressure is applied from the underside of the set (e.g. placed on cables or other parts) the tray will not open/ close correctly: The CD is not centered above the turntable - the upcomming RCD-lift (item 439) will clamp the disc somewhere between table and magnet bracket (item507). After STOP/OPEN the CD might fall into the housing where a closing tray can damage it.
MODEL: AK703
SYMPTOM: Tray motor (item 1004) overheated; Melted bottom around tray motor
CURE: CAUSE: Due to mechanical tolerances of the tray inner switch (item 1006), this switch is actuated too late. That is why the tray moves too far inside and causes a tension at the gear which lets the gear wheel (item 421) and the worm wheel (item 418) stuck together. Than the tray motor blocks and overheats. SOLUTION: Adjust gap between contacts of the inner tray switch and the middle contact. The distance should read 0.2 till 0.3 mm by bending contact spring of inner tray position. (In service information A93-368 this tray and adjust dimensions have been drawn.) Check each set brought in for repair on: Transistors 7520 till 7525 of motor bridge circuit and NFR resistor 3521 are OK. Gear wheel (item 421) and worm wheel (item 418) on mechanical damage. REMARKS : This publication will be followed by a service information A93-368.
MODEL: AK703
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK729
SYMPTOM: Wrong adjustment procedure of the CD-mechanism in service manual.
CURE: Adjustment of tracking offset: The adjustment can't be carried out as described in the adjustment table (page 16). The offset voltage should be measured between pin3 and pin6 of connector 1802 and be adjusted to 0V DC (+/- 5mV). REMARKS : This publication will be followed by a service information.
MODEL: AK729
SYMPTOM: Poor loading function (CDs damaged)
CURE: Check the set-up at the customer's place. REMARKS : If the set is placed on an uneven surface or if pressure is applied from the underside of the set (e.g. placed on cables or other parts) the tray will not open/ close correctly: The CD is not centered above the turntable - the upcomming RCD-lift (item 439) will clamp the disc somewhere between table and magnet bracket (item507). After STOP/OPEN the CD might fall into the housing where a closing tray can damage it.
MODEL: AK729
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK729
SYMPTOM: Mechanical partslist
CURE: Mechanical partslist Power-keys for AK729 resp. AK730 have different colors. The service code number, stated in the service manual, is only valid for AK729. Codenumber for the AK730 power-key has been added: Pos. 412 4822 410 60734 Power-key for AK729 (color gray) 4822 410 63165 Power-key for AK730 (color black)
MODEL: AK729
SYMPTOM: Corrections to service manual
CURE: Corrections to service manual - 1. Component layout DISK BOARD (page 17-18): - Numbering of connectors 1812 and 1813 has been reversed (circuit diagram is OK) - Measuring point 6 is not pin 1 of connector 1812 but pin 2 (circuit diagram OK). 2. Adjustment of tracking offset: The adjustment can't be carried out as described in the adjustment table (page 16). The offset voltage should be measured between pin3 and pin6 of connector 1802 and be adjusted to OV DC (+/- 5mV.) REMARKS: This publication will be followed by a service information.
MODEL: AK730
SYMPTOM: Skips tracks, cannot follow tracks.
CURE: Check C2820 in track regulator part.
MODEL: AK730
SYMPTOM: Wrong adjustment procedure of the CD-mechanism in service manual.
CURE: Adjustment of tracking offset: The adjustment can't be carried out as described in the adjustment table (page 16). The offset voltage should be measured between pin3 and pin6 of connector 1802 and be adjusted to 0V DC (+/- 5mV). REMARKS : This publication will be followed by a service information.
MODEL: AK730
SYMPTOM: Bad playability with scratched CDs (Drop-outs, skips tracks)
CURE: Customer complaint: Other sets are able to play the same disc without any problem. CAUSE: Complaint set fulfils the specification, but tracking balance adjustment is not optimized for scratched CDs. SOLUTION: A more accurate adjustment of the TRACKING BALANCE will improve the playability of the set. Apply at measuring point 4 and 5 a low pass RC-filter with a time constant of approx. 3.5 seconds. The measured DC-level on the oscilloscope follows the TE-signal delayed. Adjust with potentiometer 3806 the measured value on the oscilloscope to 0V DC +/- 5 mV. In more detail explained in service information A93-368. REMARKS : This publication will be followed by service information A93-368.
MODEL: AK730
SYMPTOM: CD skips tracks after some minutes.
CURE: Check laser current. Readjust laser current.
MODEL: AK730
SYMPTOM: Poor loading function (CDs damaged)
CURE: Check the set-up at the customer's place. REMARKS : If the set is placed on an uneven surface or if pressure is applied from the underside of the set (e.g. placed on cables or other parts) the tray will not open/ close correctly: The CD is not centered above the turntable - the upcomming RCD-lift (item 439) will clamp the disc somewhere between table and magnet bracket (item507). After STOP/OPEN the CD might fall into the housing where a closing tray can damage it.
MODEL: AK730
SYMPTOM: Tray motor (item 1004) overheated; Melted bottom around tray motor
CURE: CAUSE: Due to mechanical tolerances of the tray inner switch (item 1006), this switch is actuated too late. That is why the tray moves too far inside and causes a tension at the gear which lets the gear wheel (item 421) and the worm wheel (item 418) stuck together. Than the tray motor blocks and overheats. SOLUTION: Adjust gap between contacts of the inner tray switch and the middle contact. The distance should read 0.2 till 0.3 mm by bending contact spring of inner tray position. (In service information A93-368 this tray and adjust dimensions have been drawn.) Check each set brought in for repair on: Transistors 7520 till 7525 of motor bridge circuit and NFR resistor 3521 are OK. Gear wheel (item 421) and worm wheel (item 418) on mechanical damage. REMARKS : This publication will be followed by a service information A93-368.
MODEL: AK730
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK730
SYMPTOM: Corrections to service manual
CURE: Corrections to service manual - 1. Component layout DISK BOARD (page 17-18): - Numbering of connectors 1812 and 1813 has been reversed (circuit diagram is OK) - Measuring point 6 is not pin 1 of connector 1812 but pin 2 (circuit diagram OK). 2. Adjustment of tracking offset: The adjustment can't be carried out as described in the adjustment table (page 16). The offset voltage should be measured between pin3 and pin6 of connector 1802 and be adjusted to OV DC (+/- 5mV.) REMARKS: This publication will be followed by a service information.
MODEL: AK730
SYMPTOM: Mechanical partslist
CURE: Mechanical partslist Power-keys for AK729 resp. AK730 have different colors. The service code number, stated in the service manual, is only valid for AK729. Codenumber for the AK730 power-key has been added: Pos. 412 4822 410 60734 Power-key for AK729 (color gray) 4822 410 63165 Power-key for AK730 (color black)
MODEL: AK791
SYMPTOM: Instability of radial drive amplifiers
CURE: In the above model it has been found that it is possible for the radial drive operational amplifiers in IC7843 to become unstable. The frequency of oscillation is approximately 1 kHz and in this condition a steady tone will be heard coming from the CD deck mechanism. The fault may be difficult to trace because it can exist when all relevant components are within tolerance. Referring to the circuit diagram, instability can occur when R3853 and R3854 are lower in value by approximately 500-600 ohms compared to R3850 and R3855.To overcome the problem select four resistors and allocate the two higher values to positions R3853/R3854 and the lower values to R3850/R3855.All resistors are 12 Kohms 5% types code number 4822 116 80664.
MODEL: AK791
SYMPTOM: Does not play discs due to no radial drive.
CURE: Check service test program 6.The radial arm should move in and out.If the radial arm isn't moving, check +5VB line.If this voltage is at 3 volts, suspect R3802 - 4.7 Ohm.
MODEL: AK791
SYMPTOM: Does not play CDs, unit tries to find focus; turntable motor runs.
CURE: Put set into service mode. If error 3 is shown, check radial error microprocessor. (item 7840)
MODEL: AK791
SYMPTOM: Intermittent radial arm is forced to outer of CDM.
CURE: On checking around IC 7800(TDA808AT) it was found that FElag signal (pin 16) was incorrect. Replacing C2817 (470nf) cured the fault.
MODEL: AK791
SYMPTOM: Service Manual, Partslist changermodule.
CURE: Service Manual, Partslist changermodule. To solve problems with broken cams on item 501 and 503 these parts once have been taken as a normal service sparepart. A limited number of them is available under the following codenumbers : item 5014822 443 63082 item 5034822 444 50653
MODEL: AK791
SYMPTOM: Correction to laser current adjustment
CURE: Correction to laser current adjustment When resetting the laser current in the above model R3810 should be adjusted to give 50mV across R3800 and not R3501 as stated in the manual.
MODEL: AK791
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK796
SYMPTOM: Service Manual, Partslist changermodule.
CURE: Service Manual, Partslist changermodule. To solve problems with broken cams on item 501 and 503 these parts once have been taken as a normal service sparepart. A limited number of them is available under the following codenumbers: item 5014822 443 63082 item 5034822 444 50653
MODEL: AK796
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AK798
SYMPTOM: Service Manual, Partslist changermodule.
CURE: Service Manual, Partslist changermodule. To solve problems with broken cams on item 501 and 503 these parts once have been taken as a normal service sparepart. A limited number of them is available under the following codenumbers: item 5014822 443 63082 item 5034822 444 50653
MODEL: AK798
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: AQ4010
SYMPTOM: Sometimes no sound from tape deck part.
CURE: Check REC/PB head connections.
MODEL: AQ4010
SYMPTOM: Cass. part does not play, wind or rewind properly
CURE: Left reel stucks due to dirt on one wheel, remove dirt.
MODEL: AQ4010
SYMPTOM: The tape deck part is totally inoperative.
CURE: Check whether the heat sink of IC201 is bent against J202 and J203. (short-circuit). Rebent the heat sink.
MODEL: AQ4010
SYMPTOM: No FM reception.
CURE: Check the interconnection of the red wire to the tuner PCB.
MODEL: AQ4050
SYMPTOM: Modification
CURE: Modification A new tape deck is used in production. The following service codenumbers have been changed: 4822 358 10233Main belt 4822 528 70849Pinch Roller Arm 4822 528 70695Pinch Roller 4822 403 70968Eject Slider REMARKS : Modification is implemented from August 97 (with factory code starting from KZ019734...) onwards.
MODEL: AQ4150
SYMPTOM: The mains transformer is defective.
CURE: This fault is caused by the thermal fuse. Solution: New transformer has been implemented in production; The old transformer was marked NC-I1887TM The new transformer is markedNC-I1887TM1 (remark: '1' is added). The transformer is available via service code 4822 146 31476. REMARKS : This modification has been implemented in production from week 9550 onwards. This publication is a correction of newsletter 96.04.02 (Complete marked code has been offered instead of '1').
MODEL: AQ4150
SYMPTOM: Set inoperative on battery supply.
CURE: The positive pole of the battery does not make contact with the battery spring (+ pole) in the battery compartment. Bending the spring towards the + pole of the battery is a practical solution. REMARKS : From week 9551 onwards, tooling of battery spring has been modified.
MODEL: AQ4150
SYMPTOM: Hum from speaker in radio and play mode.
CURE: Check C26.
MODEL: AQ4150
SYMPTOM: Poor recordings from Tuner (FM) on normal tape
CURE: (unstable output level). Change R8 from 15k to 12k (4822 116 51254) Change R14 from 2.2M to 1.5M (4822 050 21505) Change R18 from 820 to 390 (4822 050 28201) Change C11 from 0.22F to 10F (4822 124 40248) Change C21 from 0.22F to 1F (4822 124 40746) REMARKS : Modification has been implemented in production from week 0010 onwards.
MODEL: AQ4150
SYMPTOM: The recordings are distorted.
CURE: Check switch (rec/play) SW4
MODEL: AQ4150
SYMPTOM: Modification
CURE: Modification A new tape deck is used in production. The following service codenumbers have been changed: 4822 358 10233Main belt 4822 528 70849Pinch Roller Arm 4822 528 70695Pinch Roller 4822 403 70968Eject Slider REMARKS : Modification is implemented from August 97 (with factory code starting from KZ019734...) onwards.
MODEL: AQ4420
SYMPTOM: No audio signal after some time
CURE: Check/replace IC7101.
MODEL: AQ4420
SYMPTOM: Codenumber information
CURE: Codenumber information The Mode Knob (for selecting TAPE-AM-FM) is available with service code 4822 411 62033.
MODEL: AQ4420
SYMPTOM: Service information
CURE: Service information - As this set is a so-called category 1 product no service manual has been produced and the normal replace procedure might have been applied. In coarse of production and for logistic reasons the audio IC U420B (item 7301) has been changed into IC TA7368P (4822 209 62192). Also IC TEA5591 (item 7101) has been changed into TEA5713/N2 (4822 209 31065).The Printed Circuit Board has been re-designed and has been introduced to production from week 9515 onwards. REMARKS : Modified sets can be recognized by changed factory code: KT02 (serial number KT029515xxxxx).
MODEL: AQ4420
SYMPTOM: Modification
CURE: Modification During production, motor EG-530AD-6F (4822 361 21779) has been used instead of motor MMI-6S6R on tape deck. To replace EG-530AD-6F by MMI-6S6R, no other parts change is required.
MODEL: AQ5040
SYMPTOM: Motor Noise is too loud.
CURE: Add an electrolytic capacitor item 2780, with value 220uF/16V (4822 124 40196) across the connection terminals of the DC motor. REMARKS : This modification has been implemented in production from week 9450 onwards.
MODEL: AQ5040
SYMPTOM: Tape deck reels produce a ticking sound.
CURE: The problem is caused by dirts on the pressure roller. This can be observed by checking the tape speed variation. By cleaning the tape path and pressure roller the complaint can be solved.
MODEL: AQ5040
SYMPTOM: No recording mode. Play back O.K.
CURE: It might be that the record switch is not pushed because the record pin is loose.
MODEL: AQ5040
SYMPTOM: No tape transport. The take-up reel does not turn.
CURE: Drive belt might be loose.
MODEL: AQ5040
SYMPTOM: No AC power. The mainstransformer is defective.
CURE: Fault is caused by the next: One of the solder joints of the mains socket is found cracked due to a rib (of the bottom cabinet) underneath the socket. This rib is too high and causes stress on the Printed Circuit Board. Service solution: Cut away a bit of plastic (about 1mm) from the mentioned rib. Check solderjoints of mains socket. REMARKS: In production from week 9412 onwards the bottom cabinet will be modified.
MODEL: AQ5040
SYMPTOM: Cassette door hinge broken.
CURE: The mould of the door will be strengthened along the hinge area by adding ribs and more plastic on the hinge area. REMARKS: Modified Cassette Door is used in production from week 9418 onwards.
MODEL: AQ5150
SYMPTOM: No sound on left channel at radio
CURE: Check C27
MODEL: AQ5150
SYMPTOM: Tuning is OK, but distorted sound with bass tone on radio
CURE: Check C16.
MODEL: AQ5310
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AQ5311
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AQ5312
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AQ5315
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AQ6340
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10279Battery Cover 4822 492 11097Cassette Door Spring 4822 443 10278cassette Door 4822 100 20868Volume Control 4822 450 10111Lens-Cassette 4822 458 10518Grille-speaker 4822 410 10456Knob-Voice Act. 4822 134 10031Knob-BNS 4822 277 11526Contact-Switch 4822 240 10151Speaker 36mm 8 ohm 4822 242 10366Mic KUB2823 4822 265 10504Phone Jack (Green) 4822 265 10505Mic Jack (Black) 4822 265 10506DC Jack 4822 276 13726Switch-Push 4P2T 4822 277 11527Switch-Slide 2P3T 4822 277 11528Switch-Slide 1P2T 4822 349 11012Counter 4822 358 10165Counter Belt 4822 691 10496Tape Deck 4822 249 10525R/P Head 4822 249 10524E. head 4822 361 10837DC Motor
MODEL: AQ6350
SYMPTOM: Hum at maximum volume.
CURE: 1. Change resistor 3029 from 390ohm to 1kOhm (4822 116 83863). 2. Change capacitor 2017 from 10uF to 1uF(4822 124 41398). 3. Twist the wires connecting the main board and the tone control board. REMARKS: Production will be corrected from week 9410.
MODEL: AQ6350
SYMPTOM: Humming sound after recording.
CURE: Check capacitor C2070.
MODEL: AQ6350
SYMPTOM: No record mode.
CURE: Check the wire of the erase head.
MODEL: AQ6350
SYMPTOM: After a while the recorder produces a humming sound.
CURE: Check capacitor C2014 in endstage.
MODEL: AQ6421
SYMPTOM: Totally inoperative.
CURE: Check mass track near battery spring.
MODEL: AQ6421
SYMPTOM: When the set is switched ON, a piece of the tape is erased.
CURE: CAUSE: When play button is pressed, there is a pulse from IC going to the tape head. This caused a momentary erase of tape. SOLUTION: 1.Add resistor 5K6 (4822 116 52289) between pin 1 and 3 of IC AN7082K. 2.Add resistor 5K6 between pin 1 and 20 of IC AN7082K. 3.Add ceramic capacitor 4.7pF (4822 122 40362) between pin 1 of IC AN7082K and ground. 4.Change capacitor C9 for 47 F to 2.2 F (4822 124 41013). REMARKS : From week 9347 onwards this change has been implemented in production.
MODEL: AQ6421
SYMPTOM: One channel no sound.
CURE: Check solder connections on IC U1 (AN7082K).
MODEL: AQ6421
SYMPTOM: Sometimes tape speed variations or sometimes no tape drive at all.
CURE: Check soldering quality connection of motor wire.
MODEL: AQ6421
SYMPTOM: Play knob does not lock.
CURE: Play bracket might be bended. Rebend the play bracket.
MODEL: AQ6421
SYMPTOM: Motor does not turn.
CURE: Check IC U1.
MODEL: AQ6421
SYMPTOM: Tape speed too fast. ( deviation >5%)
CURE: Check soldering quality of R14.
MODEL: AQ6421
SYMPTOM: Volume control potentiometer
CURE: Volume control potentiometer The volume control potentiometer used in AQ6421 is as same as in AQ6529. Service code is 4822 105 11122.
MODEL: AQ6421
SYMPTOM: Partslist
CURE: Partslist - Service code Headphone socket reads 4822 267 31639 and service code of the Play head reads 4822 249 30207.
MODEL: AQ6422
SYMPTOM: No playback mode.
CURE: Check the solder connections of the IC (AG665).
MODEL: AQ6422
SYMPTOM: One channel no sound.
CURE: Check PCB on bad solder joints. (e.g. pins 27 & 28 of the IC)
MODEL: AQ6422
SYMPTOM: The autoreverse reverses before the end of the tape.
CURE: Check friction and auto-stop friction.
MODEL: AQ6422
SYMPTOM: No tape transport.
CURE: Drive belt might be loose from motor pulley or from flywheel or the drive belt might be stuck between front and back cover.
MODEL: AQ6422
SYMPTOM: Cassette lid does not close.
CURE: Cassette lid spring might be loose.
MODEL: AQ6426
SYMPTOM: Totally inoperative.
CURE: Check whether the connection wire at the battery springs are loose or bad soldered.
MODEL: AQ6426
SYMPTOM: One channel no sound.
CURE: Check PCB on bad solder joints.
MODEL: AQ6426
SYMPTOM: Tape speed deviates between forward and reverse mode.
CURE: Change resistor 3500 from 270 Ohm into 330 Ohm.
MODEL: AQ6426
SYMPTOM: Motor sound audible in audio signal.
CURE: Check motor (4822 361 21613)
MODEL: AQ6426
SYMPTOM: No tape transport.
CURE: Drive belt might be loose from flywheel.
MODEL: AQ6426
SYMPTOM: Cassette lid does not close.
CURE: Eject spring might be loose. Remount the cassette spring.
MODEL: AQ6426
SYMPTOM: No tape transport.
CURE: Check whether the motor is running. If not check motor driver IC. (2200)
MODEL: AQ6443
SYMPTOM: The hinge of the Cassette Door is broken.
CURE: The tooling has been modified to strengthen the hinges of the Cassette Door. From this set only a few spare parts are available. This modified cassette door is also on stock now. In case of broken hinge replace cassette door with new 4822 443 64329. REMARKS : The modified Cassette Door is used in production from week 9531 onwards.
MODEL: AQ6446
SYMPTOM: One channel no sound.
CURE: This fault might be caused by the headphone socket: The headphone socket mounted slanted or cold-soldered. SOLUTION: Re-solder headphone socket. Mounting procedure in production has been modified to ensure that the socket is flat mounted on printed board panel. REMARKS: This modification has been implemented in production from week 9534 onwards.
MODEL: AQ6463
SYMPTOM: Fast wind/or rewind button stuck
CURE: The spring near the common wheel became loose because the springholder has broken by extreme large force applied to the button.
MODEL: AQ6463
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10383Battery Cover 4822 492 11196Cassette Door Spring 4822 443 10384Cassette Door 4822 101 11459Volume Control 4822 443 10385Door Insert 4822 450 10165Lens-cassette 4822 401 11629Belt Clip 4822 410 10601Knob-DBB 4822 265 10506DC Jack 4822 267 31861Headphone Jack 4822 277 11579Switch-Slide DBB 4822 242 10441Headphone AY3660
MODEL: AQ6485
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to LOCK position. The Belt Clip is available via service codenumber 4822 401 11734. REMARKS : An addendum sheet with diagrams showing how to fix the Belt Clip was added to the set from week 9815 onwards. The belt Clip has also been modified (dimple added and letter PUSH engraved).
MODEL: AQ6485
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to its location.The Belt Clip is available via service code 4822 401 11734. REMARKS : An addendum sheet with diagrams shows how to fix the Belt Clip was added to the set from week 9815 onwards.The belt Clip was also modified with a dimple added and letter PUSH engraved.
MODEL: AQ6518
SYMPTOM: Service information
CURE: Service information - As these sets are so-called category 1 products no service manuals have been produced and the normal replace procedure might have been applied. However for servicing the cassette deck of AQ6518, AQ6527 and AQ6528 the following parts are available now: 4822 528 70671 Pinch Roller Base F 4822 528 70672 Pinch Roller Base R 4822 528 70876 Pinch Roller 4822 535 93561 Pinch Roller Shaft 4822 358 31067 Drive Belt REMARKS : See also service information A95-550 (4822 725 25373) for other available spare parts.
MODEL: AQ6524
SYMPTOM: Sound interrupts when moving headphone plug
CURE: Check solder joint mass contact headphone socket.
MODEL: AQ6524
SYMPTOM: Sometimes no tape drive. Motor sometimes inoperative.
CURE: Check soldering quality of RCD motor wire on the PCB.
MODEL: AQ6524
SYMPTOM: Cassette part inoperative. No tape transport.
CURE: Belt might be loose from motor-pully.
MODEL: AQ6524
SYMPTOM: Totally inoperative.
CURE: Check DC switch in DC-socket.
MODEL: AQ6524
SYMPTOM: Cassette lid does not close.
CURE: Cassette lid spring might be loose. Remount the spring.
MODEL: AQ6524
SYMPTOM: Lid does not close properly.
CURE: Check springs of the lid.
MODEL: AQ6524
SYMPTOM: Spare part information
CURE: Spare part information During production, two types of headphone socket were used. Because body dimension and the pins location of the sockets are different, correct parts must be ordered. 1. 4822 267 31595 : body is rectangular (5 x 7 mm) 2. 4822 267 31861 : body is square (6 x 6 mm)
MODEL: AQ6524
SYMPTOM: Codenumber information
CURE: Codenumber information The IC BA3528FP is now available via service code 4822 209 13503. This IC can also be added to service information A96-550 (Spare part codenumbers for Service Category I products.)
MODEL: AQ6527
SYMPTOM: No audio signal
CURE: Check for short circuit between leg 1 and leg 2 of IC2.
MODEL: AQ6527
SYMPTOM: A crackle noise is audible during two music passages.
CURE: This crackle noise is probably caused by the static on the take-up reel. The solution is to stick a shield plate with double side tape on the PCB (no copper side) underneith the IC BA3519F and this shield plate should be shorted to ground (pin 22 of BA3519F) by means of a connecting wire. The service code for the shield plate is 4822 466 62518. REMARKS : The modification had been implemented in production from week 9410 onwards.
MODEL: AQ6527
SYMPTOM: A crackle noise is audible when a non recorded tape is playing.
CURE: This crackle noise is probably caused by the static on the take-up reel. The solution is to stick a shield plate with double side tape on the PCB (no copper side) underneith the IC BA3519F and this shield plate should be shorted to ground (pin 22 of BA3519F) by means of a connecting wire. The service code for the shield plate is 4822 466 62518. REMARKS : The modification had been implemented in production from week 9410 onwards.
MODEL: AQ6527
SYMPTOM: Service information
CURE: Service information - As these sets are so-called category 1 products no service manuals have been produced and the normal replace procedure might have been applied. However for servicing the cassette deck of AQ6518, AQ6527 and AQ6528 the following parts are available now: 4822 528 70671 Pinch Roller Base F 4822 528 70672 Pinch Roller Base R 4822 528 70876 Pinch Roller 4822 535 93561 Pinch Roller Shaft 4822 358 31067 Drive Belt REMARKS : See also service information A95-550 (4822 725 25373) for other available spare parts.
MODEL: AQ6528
SYMPTOM: No sound at all.
CURE: Check mass contact headphone socket.
MODEL: AQ6528
SYMPTOM: A crackle noise is audible during two music passages.
CURE: This crackle noise is probably caused by the static on the take-up reel. The solution is to stick a shield plate with double side tape on the PCB (no copper side) underneith the IC BA3519F and this shield plate should be shorted to ground (pin 22 of BA3519F) by means of a connecting wire. The service code for the shield plate is 4822 466 62518. REMARKS : The modification had been implemented in production from week 9410 onwards.
MODEL: AQ6528
SYMPTOM: A crackle noise is audible when a non recorded tape is playing.
CURE: This crackle noise is probably caused by the static on the take-up reel. The solution is to stick a shield plate with double side tape on the PCB (no copper side) underneith the IC BA3519F and this shield plate should be shorted to ground (pin 22 of BA3519F) by means of a connecting wire. The service code for the shield plate is 4822 466 62518. REMARKS : The modification had been implemented in production from week 9410 onwards.
MODEL: AQ6528
SYMPTOM: Does not function on batteries
CURE: Check connector j400.
MODEL: AQ6528
SYMPTOM: No headphone output.
CURE: Check the headphone socket.
MODEL: AQ6528
SYMPTOM: Cassette lid does not close.
CURE: Cassette spring might be loose. Remount cassette spring.
MODEL: AQ6528
SYMPTOM: Ticking sound in play mode, sometimes no tape transport.
CURE: Check the tape transport motor.
MODEL: AQ6528
SYMPTOM: Service information
CURE: Service information - As these sets are so-called category 1 products no service manuals have been produced and the normal replace procedure might have been applied. However for servicing the cassette deck of AQ6518, AQ6527 and AQ6528 the following parts are available now: 4822 528 70671 Pinch Roller Base F 4822 528 70672 Pinch Roller Base R 4822 528 70876 Pinch Roller 4822 535 93561 Pinch Roller Shaft 4822 358 31067 Drive Belt REMARKS : See also service information A95-550 (4822 725 25373) for other available spare parts.
MODEL: AQ6529
SYMPTOM: Left channel no sound.
CURE: Ceck PCB for bad solder joints (e.g. C56).
MODEL: AQ6529
SYMPTOM: One chanel interrupts when moving the headphone plug.
CURE: Check the headphone socket (4822 267 31631).
MODEL: AQ6529
SYMPTOM: Sometimes volume cannot be changed, stays at a high volume.
CURE: Check the volume potentiometer VR1 (4822 105 11122).
MODEL: AQ6529
SYMPTOM: Radio part inoperative.
CURE: Check IC101.
MODEL: AQ6529
SYMPTOM: Batteries too fast empty, tape transport continuously activated
CURE: Check whether leaf-switch is loose and sticks between pcb and deck. Remount the leaf-switch.
MODEL: AQ6529
SYMPTOM: The autoreverse reverses before the end of the tape.
CURE: Check friction and auto-stop friction.
MODEL: AQ6529
SYMPTOM: Cassette lid does not close.
CURE: Cassette lid spring might be loose. Remount the cassette spring.
MODEL: AQ6542
SYMPTOM: Codenumber information
CURE: Codenumber information The IC BA3528FP is now available via service code 4822 209 13503. This IC can also be added to service information A96-550 (Spare part codenumbers for Service Category I products.)
MODEL: AQ6546
SYMPTOM: Auto reverse cassette deck plays in one direction only.
CURE: The reverse mechanism might be interrupted by C70 (1uF/50V), which can be replaced by a SMD capacitor (4822 126 11692). REMARKS : SMD capacitor is used in production from week 9708 onwards.
MODEL: AQ6546
SYMPTOM: Battery inserting is difficult.
CURE: The batteries are blocked by the flat cables, connected to the equalizer board on the cassette door.A piece of PVC adhesive tape (35mm x 3.8mm) can be used to cover the flat cable under the battery compartment. REMARKS : Modification implemented in production from week 9708 onwards.
MODEL: AQ6547
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10378Battery Cover 4822 492 42743Cassette Door Spring 4822 443 11382Cassette Door (PHI) 4922 443 10379Cassette Door (MVX) 4822 101 11429Volume Control 4822 401 11627Belt Clip 4822 442 00445Cassette Door Cover 4822 450 10164Cassette Lens 4822 462 10769Rubber Keypad 4822 267 31862Headphone Jack 4822 265 10662DC Jack 4822 691 10516Tape Deck MCT-7
MODEL: AQ6548
SYMPTOM: A squeaking sound is audible.
CURE: Pin 1 of IC LAG673 has loose contact due to the pressure from the rear cabinet.Check and touch up the solder connection at IC LAG673. REMARKS : From week 9522 onwards, rear cabinet has been modified to avoid pressing the IC.
MODEL: AQ6548
SYMPTOM: No headphone output or headphone output signal is intermittent.
CURE: Fault is caused by a cracked copper-track at the headphone socket. Check copper-track and re-connect the broken track with jumpers. REMARKS : Following modification had been implemented : Main Cabinet tool from week 9516 onwards Rear Cabinet tool from week 9531 onwards Printed Circuit Board Copper-track from week 9538 onwards
MODEL: AQ6548
SYMPTOM: Headphone interruption.
CURE: Fault might be caused by headphone wiring, which could have a dry joint connection to speaker, because temporarily two twisted wires have been applied with different lengths. REMARKS: The modified headphones have been implemented in production from week 9536 onwards.
MODEL: AQ6548
SYMPTOM: Software problem memory loc in display
CURE: To solve this problem, press the reset at the backside. Attention: this action erases the memory.
MODEL: AQ6548
SYMPTOM: Codenumber information
CURE: Codenumber information The connectors between the main board and the control board are available as service articles. service code numberdescription 4822 321 63152 Sumi ribbon wire (6C) 4822 267 51486 Flexible connector (11C) REMARKS : This publication will be followed by Service Information A95-568.
MODEL: AQ6548
SYMPTOM: Spare part information
CURE: Spare part information IC item U101 TC9308AF-053 is now available with service code number 4822 209 12708.
MODEL: AQ6549
SYMPTOM: No headphone output or headphone output signal is intermittent.
CURE: Fault is caused by a cracked copper-track at the headphone socket. Check copper-track and re-connect the broken track with jumpers. REMARKS : Following modification had been implemented : Main Cabinet tool from week 9516 onwards Rear Cabinet tool from week 9531 onwards Printed Circuit Board Copper-track from week 9538 onwards
MODEL: AQ6549
SYMPTOM: A squeaking sound is audible.
CURE: Pin 1 of IC LAG673 has loose contact due to the pressure from the rear cabinet.Check and touch up the solder connection at IC LAG673. REMARKS : From week 9522 onwards, rear cabinet has been modified to avoid pressing the IC.
MODEL: AQ6549
SYMPTOM: Spare part information
CURE: Spare part information IC item U101 TC9308AF-053 is now available with service code number 4822 209 12708.
MODEL: AQ6549
SYMPTOM: Codenumber information
CURE: Codenumber information The connectors between the main board and the control board are available as service articles. service code numberdescription 4822 321 63152 Sumi ribbon wire (6C) 4822 267 51486 Flexible connector (11C) REMARKS : This publication will be followed by Service Information A95-568.
MODEL: AQ6560
SYMPTOM: Weak sound from the cassette and tuner part.
CURE: Check mass contact of the headphone socket.
MODEL: AQ6560
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10308Battery Cover 4822 492 42743Cassette door spring 4822 459 04171Front Cabinet Assy (PHI) 4822 449 80074Front Cabinet Assy (MVX) 4822 101 11429Volume Control 4822 401 11627Belt Clip 4822 492 11172Cassette Spring Plate 4822 267 31862Headphone Jack 4822 691 10516Tape deck Following parts are for blue colour versions only : 4822 443 10452Battery Cover 4822 443 10465Cassette Door (PHI) 4822 443 10453Cassette Door (MVX) 4822 401 11649Belt Clip 4822 492 11336Cassette door Spring
MODEL: AQ6562
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10328Battery Cover 4822 492 11186Cassette Door Spring 4822 443 10327Cassette Door 4822 101 11459Volume Control 4822 401 11629Belt Clip 4822 381 11743Dial Lens 4822 410 10554Knob-DBB 4822 209 13626IC MM1104CF 4822 265 10621DC Jack 4822 267 31861Headphone Jack 4822 277 11566Switch-Slide DBB 4822 242 10441Headphone AY3660 4822 691 10528Tape Deck
MODEL: AQ6563
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10328Battery Cover 4822 492 11186Cassette Door Spring 4822 443 10381Cassette Door 4822 101 11459Volume Control 4822 401 11629Belt Clip 4822 381 11756Dial Lens 4822 458 10545Grille-Speaker 4822 410 10554Knob-DBB 4822 209 13626IC MM1104CF 4822 265 10621DC Jack 4822 267 31861Headphone Jack 4822 277 11566Switch-Slide DBB 4822 240 10151Speaker 36mm 8 ohm 4822 242 10441Headphone AY3660 4822 691 10528Tape Deck
MODEL: AQ6567
SYMPTOM: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-
CURE: ADDITIONAL INFORMATION TO SERVICE INFORMATION A96-550 - 4822 443 10378Battery Cover 4822 492 42743Cassette Door Spring 4822 443 11382Cassette Door (PHI) 4922 443 10379Cassette Door (MVX) 4822 101 11429Volume Control 4822 401 11627Belt Clip 4822 442 00445Cassette Door Cover 4822 450 10164Cassette Lens 4822 462 10769Rubber Keypad 4822 267 31862Headphone Jack 4822 265 10662DC Jack 4822 691 10516Tape Deck MCT-7
MODEL: AQ6581
SYMPTOM: Tape sound is distorted near strong electro-magnetic fields.
CURE: Problem can be solved by connecting two 390pF ceramic capacitors (4822 122 32121) from pins 6 and 23 to pin 10 (ground) of IC LAG668. IRIS CODE 2532
MODEL: AQ6581
SYMPTOM: Tape sound is distorted near strong electro-magnetic fields.
CURE: Problem can be solved by connecting two 390pF ceramic capacitors (4822 122 32121) from pins 6 and 23 to pin 10 (ground) of IC LAG668.
MODEL: AQ6581
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to LOCK position. The Belt Clip is available via service codenumber 4822 401 11734. REMARKS : An addendum sheet with diagrams showing how to fix the Belt Clip was added to the set from week 9815 onwards. The belt Clip has also been modified (dimple added and letter PUSH engraved).
MODEL: AQ6581
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to its location.The Belt Clip is available via service code 4822 401 11734. REMARKS : An addendum sheet with diagrams shows how to fix the Belt Clip was added to the set from week 9815 onwards.The belt Clip was also modified with a dimple added and letter PUSH engraved.
MODEL: AQ6585
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to LOCK position. The Belt Clip is available via service codenumber 4822 401 11734. REMARKS : An addendum sheet with diagrams showing how to fix the Belt Clip was added to the set from week 9815 onwards. The belt Clip has also been modified (dimple added and letter PUSH engraved).
MODEL: AQ6585
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to its location.The Belt Clip is available via service code 4822 401 11734. REMARKS : An addendum sheet with diagrams shows how to fix the Belt Clip was added to the set from week 9815 onwards.The belt Clip was also modified with a dimple added and letter PUSH engraved.
MODEL: AQ6599
SYMPTOM: Partslist
CURE: Partslist - Because it is impossible to replace display LC50 in the repairshop, this display is no longer available.
MODEL: AQ6613
SYMPTOM: Service hint
CURE: Service hint The battery holder Pos. 191 service code: 4822 256 60325 in PCS does not come a wire soldered between the spring connection Pos.136 and one of the contacts Pos.123. For this reason it becomes necessary that during replacement of this part, the technician must solder this additional piece of wire. Material: Any Black wire of thickness AWG30 cut to length of 8cm including the bare portion at both ends. Steps: 1. Unscrew D1.7 x 4 and remove Pos 130 by uncatching at catch A. 2. Remove Pos 136 by uncatching at catch B. 3. Solder the wire 4. Reassemble Pos 130 and Pos 136 into the Battery holder Pos 140. 5. Dress the wire such that it does not obstruct the battery insertion (into the small groove provided and if necessy hold it down with a small tape).
MODEL: AQ6619
SYMPTOM: One channel headphone interrupted.
CURE: Check headphone unit 4822 242 51167.
MODEL: AQ6619
SYMPTOM: Too much flutter.
CURE: Ring pos.70 loose on capstan.
MODEL: AQ6619
SYMPTOM: Service hint
CURE: Service hint The battery holder Pos. 191 service code: 4822 256 60325 in PCS does not come a wire soldered between the spring connection Pos.136 and one of the contacts Pos.123. For this reason it becomes necessary that during replacement of this part, the technician must solder this additional piece of wire. Material: Any Black wire of thickness AWG30 cut to length of 8cm including the bare portion at both ends. Steps: 1. Unscrew D1.7 x 4 and remove Pos 130 by uncatching at catch A. 2. Remove Pos 136 by uncatching at catch B. 3. Solder the wire 4. Reassemble Pos 130 and Pos 136 into the Battery holder Pos 140. 5. Dress the wire such that it does not obstruct the battery insertion (into the small groove provided and if necessy hold it down with a small tape).
MODEL: AQ6619
SYMPTOM: Codenumber information
CURE: Codenumber information The flex pcb cable for the playback head is available under service codenumber 4822 321 10997.
MODEL: AQ6681
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to LOCK position. The Belt Clip is available via service codenumber 4822 401 11734. REMARKS : An addendum sheet with diagrams showing how to fix the Belt Clip was added to the set from week 9815 onwards. The belt Clip has also been modified (dimple added and letter PUSH engraved).
MODEL: AQ6681
SYMPTOM: The Belt Clip is broken.
CURE: The belt clip will be broken if it is not properly pressed into the mounting hole on the rear cabinet before turning to its location.The Belt Clip is available via service code 4822 401 11734. REMARKS : An addendum sheet with diagrams shows how to fix the Belt Clip was added to the set from week 9815 onwards.The belt Clip was also modified with a dimple added and letter PUSH engraved.
MODEL: AQ6688
SYMPTOM: Additional information to Service Manual :
CURE: Additional information to Service Manual : 4822 443 11087 is the Cassette Door Assembly which includes the following items : 4, 6, 7, 9, 10, 15, 18, 19, 30, 31, 32, E3
MODEL: AS301
SYMPTOM: Uncomplete erase during recording of chrome cass
CURE: Uncomplete erase during recording of chrome cassette During recording of chrome cassette it may happens that existing information on the cassette tape is not completely erased. The problem is due to not enough erase current. To resolve this problem change capacitors 2783 from 3.3nF to 12nF, 2785 from 12nF to 15nF and 2786 from 220pF to 100pF.
MODEL: AS301
SYMPTOM: Correction Partslist
CURE: Correction Partslist Top cover item 436 was coded 4822 691 20741 but the service order number should read: 4822 426 60633.
MODEL: AS305
SYMPTOM: Sound volume of the tape deck part is fluctuating
CURE: Check switch 1707 (4822 277 20594) for interruptions.
MODEL: AS305
SYMPTOM: The sound level suddenly decreases for 2 seconds in recording mode.
CURE: The problem can be solved by replacing the record switch 1707 (4822 277 20594).
MODEL: AS305
SYMPTOM: Uncomplete erase during recording of chrome cass
CURE: Uncomplete erase during recording of chrome cassette During recording of chrome cassette it may happens that existing information on the cassette tape is not completely erased. The problem is due to not enough erase current. To resolve this problem change capacitors 2783 from 3.3nF to 12nF, 2785 from 12nF to 15nF and 2786 from 220pF to 100pF.
MODEL: AS305
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS400
SYMPTOM: Correction partslist
CURE: Correction partslist Top cover item 436 was coded 4822 691 20741 but the service order number should read 4822 426 40457.
MODEL: AS401
SYMPTOM: Integrated circuits 7253 and 7254 blown.
CURE: Add sufficient silicon compound between the replaced transistors and the heatsink. REMARKS : From productionweek 9309 onwards the productionprocess has been adapted to apply the silicon compound properly.
MODEL: AS401
SYMPTOM: Sound volume of the tape deck part is fluctuating.
CURE: Check switch SW1707 for interruptions.
MODEL: AS401
SYMPTOM: Humming sound from right channel.
CURE: Check endstage IC7254.
MODEL: AS401
SYMPTOM: Set switches automatically to ADD or other source.
CURE: IR reception too sensitive, reacts even on normal lamp light. ReplaceIR pos.6420 (4822 130 81254).
MODEL: AS401
SYMPTOM: Correction Partslist
CURE: Correction Partslist Top cover item 436 was coded 4822 691 20741 but the service order number should read: 4822 426 60633.
MODEL: AS405
SYMPTOM: Only dim light on display.
CURE: TR7401 (BC338/40) defective, uP does not get supply voltage.
MODEL: AS405
SYMPTOM: The sound level suddenly decreases for 2 seconds in recording mode.
CURE: The problem can be solved by replacing the record switch 1707 (4822 277 20594).
MODEL: AS405
SYMPTOM: Sound volume of the tape deck part is fluctuating
CURE: Check switch 1707 (4822 277 20594) for interruptions.
MODEL: AS405
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS440
SYMPTOM: CD cannot start-up or is humming.
CURE: CAUSE: The voltage regulator, MCT7805CT supplied by manufacturer has been found to oscillate at its output. This can be seen on a scope as an oscillation (as high as 2V peak-to-peak approx.0.4MHz) superposed onto the 5V dc. The fault is due to supplier's in-house IC fabrication process - internal compensation capacitor is not connected. Add capacitor 0.47uF (4822 124 41407) across the output terminal and ground as close as possible to the IC. REMARKS : The affected ICs batches date between week 9402 up to 9427 although IC fabrication process was improved in week 9425.New Test Program to screen out defective IC was implemented by the Supplier in week 9430. The batch week code can be identify by: x x x 4 0 2 + week code
MODEL: AS440
SYMPTOM: Left channel no sound.
CURE: Check IC7313 (4822 209 73356).
MODEL: AS440
SYMPTOM: Whistling sound (zooming sound) of 500Hz is audible during play.
CURE: Whistling sound (zooming sound) ofQ 500Hz is audible during play. In worst case skip tracks will happen and the audio output is interrupted.This phenomenon occurs especially at low temperature and when playing thin disc. This is caused by oscillating of CD mechanism CDM 12.1 Replace the existing disc clamper assembly by an improved one (service code number: 4822 691 30358) which is heavier and prevents CDM12.1 to oscillate. REMARKS : Full implementation of the improved disc clamper assembly in production from week 9442 onwards.The set can be recognized by: ModelSerial no.Introduction AS440RZ 01 ....wk 9443 AS540RZ 01 ....wk 9443
MODEL: AS440
SYMPTOM: Totally inoperative.
CURE: Check endstage IC7314 (4822 209 73356).
MODEL: AS440
SYMPTOM: Noisy sound from CD.
CURE: Check DAC IC7102 (SAA7341; 4822 209 30388).
MODEL: AS440
SYMPTOM: NO DISC indication.
CURE: Check CDM (4822 691 30278).
MODEL: AS440
SYMPTOM: No sound from the CD player.
CURE: Check the decoder/DAC IC7102 (SAA7341GP; 4822 209 30388).
MODEL: AS440
SYMPTOM: CD gives NO DISC indication. Disc speed is incorrect.
CURE: Check the decoder/DAC IC7102 (SAA7341GP; 4822 209 30388).
MODEL: AS440
SYMPTOM: No back light from the display.
CURE: Check the light driver transistor T7424 (BC327).
MODEL: AS440
SYMPTOM: Long recovering-time of automatic level control (Recorder Board)
CURE: Phenemenon occurs after strong Audio levels. Change resistor 3727 into 220k (4822 116 52258) and resistor 3731 into 2k2 (4822 116 52256).
MODEL: AS440
SYMPTOM: The CD part stops playing after some time.
CURE: Check servo processor IC7700 (4822 900 10318).
MODEL: AS440
SYMPTOM: CD inoperative.
CURE: Check processor IC7700 (4822 900 10318).
MODEL: AS440
SYMPTOM: Set does not switch on.
CURE: Check clear switch S1446 (4822 276 13114).
MODEL: AS440
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS440
SYMPTOM: CD inoperative. Disc does not turn.
CURE: Check whether rubber ring pos 108 is loose and stuck between pos 87; Remove ring.
MODEL: AS440
SYMPTOM: CD does not start-up or is humming.
CURE: This fault is caused by the voltage regulator, MCT7805CT oscillates at its output stage. This can be seen on oscilloscope as an oscillation (with 2V peak-to-peak, approx. 0.4 MHz) superposed onto the 5V dc. To solve this fault add a capacitor of 0.47uF (4822 124 41407) across the output terminal and ground as close as possible to the IC. REMARKS : The affected IC batches date between week 9402 up to 9430. The batch week code can be identified by: x x x 4 0 2 + week code
MODEL: AS440
SYMPTOM: CD gives NO DISC indication. Does not find focus.
CURE: Check focus coil. Focus coil might be interrupted. Replace CDM (4822 691 30278).
MODEL: AS440
SYMPTOM: CD door does not close fully or opens automatically after close.
CURE: The phenomenon will occur if the CD door is closed by strongly pushing the tray.This creates misalignment or damage to the tooth-wheels items 202 and 204. By this strong force also the pinion guiding gears on item 213 are loosened from their shaft. The problem can be corrected by the following actions: 1. Check if the gears 202 and 204 are not damaged. 2. Replace item 213 (4822 532 52573 = pinion guiding gear) by a modified one having a closed end and re-align the gears 202 and 204 correctly. Be sure that both pinion guiding gears have been fixed mounted (glued) on the shaft item 213. 3. Replace, if necessary, tray pos 216 (4822 444 40727) by one having guiding brackets pos 503 & 504 mounted. REMARKS : From week 9504 the improved tray (216) with guides was introduced. From week 9543 improved Pinion guiding gear, pos 213 (gear with on end closed) was introduced. This is additional information on newsletter item 64.40. (gears fixed to shaft) Further to the newsletter 64.40: It is recommended to check in every returned set, whether the pinion guiding gears on item 213 are fixed to the shaft.
MODEL: AS440
SYMPTOM: Service hints on CDM12.1 mechanical disc drive uni
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS440
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AS440
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS440
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck B, pos. 426 is 4822 410 62619
MODEL: AS440
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS440
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck A, pos. 431 is 4822 410 62621
MODEL: AS440
SYMPTOM: Service hints on CDM12.1 mechanical disc drive uni
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS440/20G
SYMPTOM: Skips tracks. Disc turns counter-clockwise in service test mode
CURE: Remount drawer, pay attention to wheel pos 202, pos 216.
MODEL: AS440/20G
SYMPTOM: The drawer is stuck.
CURE: Remount toothed wheels pos 202 and 204 in the right position.
MODEL: AS440/20G
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Service codenumber for mainstransformer AS440/22G should read 4822 146 31361, instead of 4822 146 31363.
MODEL: AS440/xxG
SYMPTOM: Correction to Service Manual
CURE: Correction to Service Manual 4822 725 24929 and 4822 725 24936. On page 74 the codenumbers for the button sets of the tape decks are mixed up. Correct is: pos.codenumberdescription 426 4822 410 62619Button set deck B 431 4822 410 62621Button set deck A
MODEL: AS445
SYMPTOM: CD part inoperative.
CURE: Check IC7080 (TCA0372DP2; 4822 209 72587).
MODEL: AS445
SYMPTOM: Erase oscillator interferences with AM stations.
CURE: Dependant on the required AM frequency the erase oscillator circuit, on recorder board, has to be tuned up or down. Therefore change capacitor (item 2783) from 12nF either to 10nF (service code number: 4822 121 41857) or 15nF (service code number: 5322 121 42975) item:value:osc. frequency: 2783 12nF63.3 kHz (original) 2783 10nF65.6 kHz 2783 15nF61.7 kHz
MODEL: AS445
SYMPTOM: Does not start. Gives ERROR. CDM cannot find the focus point.
CURE: Check the CDM (4822 691 30278).
MODEL: AS445
SYMPTOM: Display and cassette inoperative, only CD drawer is functioning.
CURE: Check supply transistor T7252
MODEL: AS445
SYMPTOM: The CD part is sometimes totally inoperative.
CURE: Check connection of white wire to sledge motor.
MODEL: AS445
SYMPTOM: Cassette recorder gives to much flutter.
CURE: Check the motor axis and the motor pulley.
MODEL: AS445
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS445
SYMPTOM: Rattling sound from CD part. The sledge is not moving.
CURE: Check whether a piece of the lineair thoothed rail is broken. Replace CDM (4822 691 30278).
MODEL: AS445
SYMPTOM: CD door does not close fully or opens automatically after close.
CURE: The phenomenon will occur if the CD door is closed by strongly pushing the tray.This creates misalignment or damage to the tooth-wheels items 202 and 204. By this strong force also the pinion guiding gears on item 213 are loosened from their shaft. The problem can be corrected by the following actions: 1. Check if the gears 202 and 204 are not damaged. 2. Replace item 213 (4822 532 52573 = pinion guiding gear) by a modified one having a closed end and re-align the gears 202 and 204 correctly. Be sure that both pinion guiding gears have been fixed mounted (glued) on the shaft item 213. 3. Replace, if necessary, tray pos 216 (4822 444 40727) by one having guiding brackets pos 503 & 504 mounted. REMARKS : From week 9504 the improved tray (216) with guides was introduced. From week 9543 improved Pinion guiding gear, pos 213 (gear with on end closed) was introduced. This is additional information on newsletter item 64.40. (gears fixed to shaft) Further to the newsletter 64.40: It is recommended to check in every returned set, whether the pinion guiding gears on item 213 are fixed to the shaft.
MODEL: AS445
SYMPTOM: The drawer of the CD-part does not open.
CURE: Check whether the drawer belt (pos102) is not loose. Remount the belt.
MODEL: AS445
SYMPTOM: HELLO is shown on the display.
CURE: This phenomenon only appears when the mains cable is connected to the set, i.e. when moving the set to another place. The message automatically disappears after a few seconds, when the set switches into the standby-mode.
MODEL: AS445
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS445
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck A, pos. 431 is 4822 410 62621
MODEL: AS445
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck B, pos. 426 is 4822 410 62619
MODEL: AS445
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a)Clamping block service code: 4822 417 10631, item 466 b)Pen service code: 4822 535 93499, item 464
MODEL: AS445
SYMPTOM: Service hints on CDM12.1 mechanical disc drive uni
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS445
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AS445
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS445
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS445/xxG
SYMPTOM: Correction to Service Manual
CURE: Correction to Service Manual 4822 725 24929 and 4822 725 24936. On page 74 the codenumbers for the button sets of the tape decks are mixed up. Correct is: pos.codenumberdescription 426 4822 410 62619Button set deck B 431 4822 410 62621Button set deck A
MODEL: AS450
SYMPTOM: CD does not function
CURE: Check/replace CDM (4822 691 30278)
MODEL: AS450
SYMPTOM: The tapedeck part does not erase.
CURE: The bias oscillator does not run. Check soldering points of transistor T7712.
MODEL: AS450
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS450
SYMPTOM: CD door does not close fully or opens automatically after close.
CURE: The phenomenon will occur if the CD door is closed by strongly pushing the tray.This creates misalignment or damage to the tooth-wheels items 202 and 204. By this strong force also the pinion guiding gears on item 213 are loosened from their shaft. The problem can be corrected by the following actions: 1. Check if the gears 202 and 204 are not damaged. 2. Replace item 213 (4822 532 52573 = pinion guiding gear) by a modified one having a closed end and re-align the gears 202 and 204 correctly. Be sure that both pinion guiding gears have been fixed mounted (glued) on the shaft item 213. 3. Replace, if necessary, tray pos 216 (4822 444 40727) by one having guiding brackets pos 503 & 504 mounted. REMARKS : From week 9504 the improved tray (216) with guides was introduced. From week 9543 improved Pinion guiding gear, pos 213 (gear with on end closed) was introduced. This is additional information on newsletter item 64.40. (gears fixed to shaft) Further to the newsletter 64.40: It is recommended to check in every returned set, whether the pinion guiding gears on item 213 are fixed to the shaft.
MODEL: AS450
SYMPTOM: CD Drawer cannot open or close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. For more information see newsletter publication issue 64.40 and 65.01 REMARKS : This modification has been implemented in production from week 9610 onwards.
MODEL: AS450
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS450
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS450
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AS450
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS450
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS455
SYMPTOM: No disc in display, disc not correct on the drawer after opening.
CURE: Complaint caused by wrong position between pos 202 and 204. REMARKS: See also Newsletter 65.01
MODEL: AS455
SYMPTOM: CD Drawer cannot open or close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. For more information see newsletter publication issue 64.40 and 65.01 REMARKS : This modification has been implemented in production from week 9610 onwards.
MODEL: AS455
SYMPTOM: HELLO is shown on the display.
CURE: This phenomenon only appears whenever the set is disconnected (or switched off) from the mains supply. There is nothing wrong with the set, all you have to do is to switch the set off and on again; the word HELLO will than disappear.
MODEL: AS455
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS455
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS455
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS455
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS501
SYMPTOM: Cassette part inoperative CD; drawer stucks sometimes
CURE: Check supply transistor T7309, and drawer switch S1813.
MODEL: AS501
SYMPTOM: Both decks total inoperative.
CURE: Check supply transistor T7309.
MODEL: AS501
SYMPTOM: Cassette decks inoperative.
CURE: Check power supply transistor T7309
MODEL: AS501
SYMPTOM: Loudspeaker output inoperative.
CURE: Check both endstage IC's. (4822 209 73356).
MODEL: AS501
SYMPTOM: Service hint
CURE: Service hint In case sets are brought-in with a defective transistor T7309 the circuit can be adapted by adding two resistors and two diodes as illustrated in the figure. The circuit will be adapted in productionsets. A = resistor 2.2 Ohm 0.5 W B = resistor 220 Ohm 0.5 W C = D = diode 1N4002 See figure
MODEL: AS501
SYMPTOM: Correction Partslist
CURE: Correction Partslist Top cover item 436 was coded 4822 691 20741 but the service order number should read: 4822 426 60633.
MODEL: AS505
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS540
SYMPTOM: CD cannot start-up or is humming.
CURE: CAUSE: The voltage regulator, MCT7805CT supplied by manufacturer has been found to oscillate at its output. This can be seen on a scope as an oscillation (as high as 2V peak-to-peak approx.0.4MHz) superposed onto the 5V dc. The fault is due to supplier's in-house IC fabrication process - internal compensation capacitor is not connected. Add capacitor 0.47uF (4822 124 41407) across the output terminal and ground as close as possible to the IC. REMARKS : The affected ICs batches date between week 9402 up to 9427 although IC fabrication process was improved in week 9425.New Test Program to screen out defective IC was implemented by the Supplier in week 9430. The batch week code can be identify by: x x x 4 0 2 + week code
MODEL: AS540
SYMPTOM: Totally inoperative, only volume led is on.
CURE: Check IC7313 (4822 209 73356).
MODEL: AS540
SYMPTOM: Whistling sound (zooming sound) of 500Hz is audible during play.
CURE: Whistling sound (zooming sound) ofQ 500Hz is audible during play. In worst case skip tracks will happen and the audio output is interrupted.This phenomenon occurs especially at low temperature and when playing thin disc. This is caused by oscillating of CD mechanism CDM 12.1 Replace the existing disc clamper assembly by an improved one (service code number: 4822 691 30358) which is heavier and prevents CDM12.1 to oscillate. REMARKS : Full implementation of the improved disc clamper assembly in production from week 9442 onwards.The set can be recognized by: ModelSerial no.Introduction AS440RZ 01 ....wk 9443 AS540RZ 01 ....wk 9443
MODEL: AS540
SYMPTOM: Crackling sound from CD.
CURE: Check decoder IC 7102 (temperature sensitive?) 4822 209 30388.
MODEL: AS540
SYMPTOM: CD gives NO DISC indication.
CURE: Check CDM (4822 691 30278).
MODEL: AS540
SYMPTOM: CD turns for a second and stops.
CURE: Check decoder IC7102 (4822 209 30388).
MODEL: AS540
SYMPTOM: Cassette speed is changing constantly.
CURE: Check connection between capacitor C2793 and jumper 9784
MODEL: AS540
SYMPTOM: CD does not start-up or is humming.
CURE: This fault is caused by the voltage regulator, MCT7805CT oscillates at its output stage. This can be seen on oscilloscope as an oscillation (with 2V peak-to-peak, approx. 0.4 MHz) superposed onto the 5V dc. To solve this fault add a capacitor of 0.47uF (4822 124 41407) across the output terminal and ground as close as possible to the IC. REMARKS : The affected IC batches date between week 9402 up to 9430. The batch week code can be identified by: x x x 4 0 2 + week code
MODEL: AS540
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck A, pos. 431 is 4822 410 62621
MODEL: AS540
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AS540
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS540
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS540
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS540
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS540
SYMPTOM: Codenumber information
CURE: Codenumber information Button set deck B, pos. 426 is 4822 410 62619
MODEL: AS540/20G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS540/20R
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS540/21G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS540/22G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS540/25G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS540/xxG
SYMPTOM: Correction to Service Manual
CURE: Correction to Service Manual 4822 725 24929 and 4822 725 24936. On page 74 the codenumbers for the button sets of the tape decks are mixed up. Correct is: pos.codenumberdescription 426 4822 410 62619Button set deck B 431 4822 410 62621Button set deck A
MODEL: AS545
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS545
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS545
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS545
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS545
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS545
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a)Clamping block service code: 4822 417 10631, item 466 b)Pen service code: 4822 535 93499, item 464
MODEL: AS545/21G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS545/30G
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Service Manual AS540/21G, AS545/21G/30G (4822 725 24939) Electrical Partslist correction on page 69 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz Service Manual AS540/20G/20R/22G/25G (4822 725 24936) Electrical Partslist correction on page 75 Coils itemwas published should read 58604822 543 003764822 242 81151 Quartz 16.934 MHz
MODEL: AS550
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS550
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS550
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS550
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS550
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS555
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AS640
SYMPTOM: Totally inoperative. Only humming sound from both speaker outputs.
CURE: Check both endstages IC7313 and IC7314 (AN7161N; 4822 209 73356).
MODEL: AS640
SYMPTOM: The CD-part no sound.
CURE: Check decoder IC 7805 (SAA7341GP; 4822 209 30388).
MODEL: AS640
SYMPTOM: Sound on right channel, noise on left channel in CD mode.
CURE: Sound ok when in tuner or tape modes. On checking the audio output from the CD player. The sound was traced back to IC7102(SAA 7341) pin 43 had noise present, pin 60 audio present. Replacing this IC cured the fault.
MODEL: AS640
SYMPTOM: CD skips tracks.
CURE: Check the CDM (4822 691 30278).
MODEL: AS640
SYMPTOM: CD part stops playing after some time.
CURE: Check whether the laser burns weaker after some time. Replace CDM (4822 691 30278).
MODEL: AS640
SYMPTOM: Squeaking sound when playing CD.
CURE: It might be that the turntable motor produces a squeaking sound. Replace RCD (4822 691 30278).
MODEL: AS640
SYMPTOM: Long recovering-time of automatic level control (Recorder Board)
CURE: Phenemenon occurs after strong Audio levels. Change resistor 3727 into 220k (4822 116 52258) and resistor 3731 into 2k2 (4822 116 52256).
MODEL: AS640
SYMPTOM: Does not accept CDs. Does not recognize the amount of CDs inside.
CURE: Check optical transistor T7832 (4822 130 83031).
MODEL: AS640
SYMPTOM: Whistling sound (zooming sound) of +/- 500Hz is audible during play
CURE: The whistling sound (zooming sound) of +/- 500Hz is audible during play. In worst case, skip tracks will happen and the audio output is interrupted. This phenomenon occurs especially at low temperature and when playing a thin disc. This fault is caused by oscillating of CD mechanism CDM 12.1. Replace the existing disc clamper assy (item 91 in exploded view) by an improved one (service code number : 4822 532 52655).
MODEL: AS640
SYMPTOM: When track changing, CD produces a squeaking sound.
CURE: Check CDM motor. Replace CDM (4822 691 30278).
MODEL: AS640
SYMPTOM: The CD drawer does not open complete.
CURE: It might be that arm pos.96 is out of position.
MODEL: AS640
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS640
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS640
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS640
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS640
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS641
SYMPTOM: Whistling sound (zooming sound) of +/- 500Hz is audible during play
CURE: The whistling sound (zooming sound) of +/- 500Hz is audible during play. In worst case, skip tracks will happen and the audio output is interrupted. This phenomenon occurs especially at low temperature and when playing a thin disc. This fault is caused by oscillating of CD mechanism CDM 12.1. Replace the existing disc clamper assy (item 91 in exploded view) by an improved one (service code number : 4822 532 52655).
MODEL: AS641
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a)Clamping block service code: 4822 417 10631, item 466 b)Pen service code: 4822 535 93499, item 464
MODEL: AS641
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS641
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS641
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS641
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS641
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS642
SYMPTOM: Whistling sound (zooming sound) of +/- 500Hz is audible during play
CURE: The whistling sound (zooming sound) of +/- 500Hz is audible during play. In worst case, skip tracks will happen and the audio output is interrupted. This phenomenon occurs especially at low temperature and when playing a thin disc. This fault is caused by oscillating of CD mechanism CDM 12.1. Replace the existing disc clamper assy (item 91 in exploded view) by an improved one (service code number : 4822 532 52655).
MODEL: AS642
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS642
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS642
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a)Clamping block service code: 4822 417 10631, item 466 b)Pen service code: 4822 535 93499, item 464
MODEL: AS642
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS642
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS642
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS645
SYMPTOM: Erase oscillator interferences with AM stations.
CURE: Dependant on the required AM frequency the erase oscillator circuit, on recorder board, has to be tuned up or down. Therefore change capacitor (item 2783) from 12nF either to 10nF (service code number: 4822 121 41857) or 15nF (service code number: 5322 121 42975) item:value:osc. frequency: 2783 12nF63.3 kHz (original) 2783 10nF65.6 kHz 2783 15nF61.7 kHz
MODEL: AS645
SYMPTOM: Whistling sound (zooming sound) of +/- 500Hz is audible during play
CURE: The whistling sound (zooming sound) of +/- 500Hz is audible during play. In worst case, skip tracks will happen and the audio output is interrupted. This phenomenon occurs especially at low temperature and when playing a thin disc. This fault is caused by oscillating of CD mechanism CDM 12.1. Replace the existing disc clamper assy (item 91 in exploded view) by an improved one (service code number : 4822 532 52655).
MODEL: AS645
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a)Clamping block service code: 4822 417 10631, item 466 b)Pen service code: 4822 535 93499, item 464
MODEL: AS645
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS645
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS645
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS645
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS645
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS650
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS650
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS650
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS650
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS650
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS655
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AS655
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AS655
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AS655
SYMPTOM: Spare part information
CURE: Spare part information The 18P flex foil connection cable between connectors 1810 and 1811 (1811 on servo board and 1810 on decoder board) is available with service code number 4822 323 50157.
MODEL: AS655
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AS655/30
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Page 96 The service code number for the Mains cord assembly should read 4822 321 10954 instead of 4822 321 10831.
MODEL: AS660C
SYMPTOM: Various failures disappear when the set is opened.
CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire
MODEL: AS660C
SYMPTOM: Start playing from stand-by mode
CURE: If the play button is pressed in the stand-by mode, the tape will move, but no sound is audible via the loudspeakers. This problem can be solved by changing resistor 3510 on board from 4.7K to 1k. Modification has been implemented from week 9832 onwards.
MODEL: AS660C
SYMPTOM: Addition to parts list:
CURE: Addition to parts list: The service code of item 1290, Loudspeaker Socket in the chapter on Power Board is 4822 265 10967.
MODEL: AS660C
SYMPTOM: Codenumber information
CURE: Codenumber information Pos. 5280 transformer is 4822 146 10491 For /22 /25 /34 is 4822 146 10491.
MODEL: AS660C
SYMPTOM: Service hint
CURE: Service hint The tape mechanism can be activated even when the set is in standby mode.If the play button is pressed the cassette will move but no sound will be heard via the Loudspeakers.This problem can be prevented by changing 3510 on the Front board from 4k7 to 1k (4822 050 11002). REMARKS : Implemented in all sets from production week 832 onwards.
MODEL: AS660C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS660C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS665C
SYMPTOM: Various failures disappear when the set is opened.
CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire
MODEL: AS665C
SYMPTOM: Start playing from stand-by mode
CURE: If the play button is pressed in the stand-by mode, the tape will move, but no sound is audible via the loudspeakers. This problem can be solved by changing resistor 3510 on board from 4.7K to 1k. Modification has been implemented from week 9832 onwards.
MODEL: AS665C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS665C
SYMPTOM: Addition to parts list:
CURE: Addition to parts list: The service code of item 1290, Loudspeaker Socket in the chapter on Power Board is 4822 265 10967.
MODEL: AS665C
SYMPTOM: Codenumber information
CURE: Codenumber information Pos. 5280 transformer is 4822 146 10491 For /22 /25 /34 is 4822 146 10491.
MODEL: AS665C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS665C
SYMPTOM: Service hint
CURE: Service hint The tape mechanism can be activated even when the set is in standby mode.If the play button is pressed the cassette will move but no sound will be heard via the Loudspeakers.This problem can be prevented by changing 3510 on the Front board from 4k7 to 1k (4822 050 11002). REMARKS : Implemented in all sets from production week 832 onwards.
MODEL: AS670/34
SYMPTOM: In standby mode, the clock display is switched off after a while.
CURE: There is nothing wrong with the set. Switching off the display is part of the Lower Power Standby Feature, described in chapter 11 of the Service Manual.
MODEL: AS670/34
SYMPTOM: In standby mode, the clock display is switched off after a while.
CURE: There is nothing wrong with the set. Switching off the display is part of the Lower Power Standby Feature, described in chapter 11 of the Service Manual.
MODEL: AS670/34
SYMPTOM: After switching to standby, clock disappears after a while (IRIS 313X)
CURE: These sets come with Lower power standby feature (see Service Manual chapter 11) that saves power consumption during standby. In this feature the FTD display (clock display) will be off.
MODEL: AS670C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS670C
SYMPTOM: Modification
CURE: Modification To solve DBB LED still lighted at OFF mode, change resistor 3525 from 33k to 10k 5% 0,5W4822 116 83864.
MODEL: AS670C
SYMPTOM: Modifications
CURE: Modifications - Following changes have been made during production: 1. Capacitor 2251 is changed from 470 uF to 100 uF (4822 124 40225) and is rotated by 90 degrees in layout change from .5 to .6 2. To protect the power amplifier, diodes 6301 and 6351 (4-channel set only) have been changed from 24V type to 22V (4822 130 34441). 3. Layout change from .6 to .7 to replace resistor 3,3R NFR by a fuse. 4. Elcos 2205 and 2214 for 4-channel set are deleted.
MODEL: AS670C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS670C
SYMPTOM: Parts list correction for old CDC-3 Module
CURE: Parts list correction for old CDC-3 Module On page 10-12 the service code for Flexfoil 17P is published; this cable is not used in the Module. The correct Flexfoil (15 pins instead of 17 pins) is published on page 10-14 as item 8002 with service codenumber 4822 320 11313. REMARKS : This correction is only applicable for the old CDC-3 Module with PCB printing 3104 113 3109..
MODEL: AS675/34
SYMPTOM: In standby mode, the clock display is switched off after a while.
CURE: There is nothing wrong with the set. Switching off the display is part of the Lower Power Standby Feature, described in chapter 11 of the Service Manual.
MODEL: AS675/34
SYMPTOM: In standby mode, the clock display is switched off after a while.
CURE: There is nothing wrong with the set. Switching off the display is part of the Lower Power Standby Feature, described in chapter 11 of the Service Manual.
MODEL: AS675/34
SYMPTOM: After switching to standby, clock disappears after a while (IRIS 313X)
CURE: These sets come with Lower power standby feature (see Service Manual chapter 11) that saves power consumption during standby. In this feature the FTD display (clock display) will be off.
MODEL: AS675C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS675C
SYMPTOM: Modification
CURE: Modification To solve DBB LED still lighted at OFF mode, change resistor 3525 from 33k to 10k 5% 0,5W4822 116 83864.
MODEL: AS675C
SYMPTOM: Parts list correction for old CDC-3 Module
CURE: Parts list correction for old CDC-3 Module On page 10-12 the service code for Flexfoil 17P is published; this cable is not used in the Module. The correct Flexfoil (15 pins instead of 17 pins) is published on page 10-14 as item 8002 with service codenumber 4822 320 11313. REMARKS : This correction is only applicable for the old CDC-3 Module with PCB printing 3104 113 3109..
MODEL: AS675C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS760C
SYMPTOM: Volume drops after some time.
CURE: Delete resistor 3472. REMARKS : This problem may occurs to sets code RZ... and produced before week 9704.
MODEL: AS760C
SYMPTOM: Various failures disappear when the set is opened.
CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire
MODEL: AS760C
SYMPTOM: Start playing from stand-by mode
CURE: If the play button is pressed in the stand-by mode, the tape will move, but no sound is audible via the loudspeakers. This problem can be solved by changing resistor 3510 on board from 4.7K to 1k. Modification has been implemented from week 9832 onwards.
MODEL: AS760C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS760C
SYMPTOM: Service hint
CURE: Service hint The tape mechanism can be activated even when the set is in standby mode.If the play button is pressed the cassette will move but no sound will be heard via the Loudspeakers.This problem can be prevented by changing 3510 on the Front board from 4k7 to 1k (4822 050 11002). REMARKS : Implemented in all sets from production week 832 onwards.
MODEL: AS760C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS765C
SYMPTOM: Volume drops after some time.
CURE: Delete resistor 3472. REMARKS : This problem may occurs to sets code RZ... and produced before week 9704.
MODEL: AS765C
SYMPTOM: Various failures disappear when the set is opened.
CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire
MODEL: AS765C
SYMPTOM: Start playing from stand-by mode
CURE: If the play button is pressed in the stand-by mode, the tape will move, but no sound is audible via the loudspeakers. This problem can be solved by changing resistor 3510 on board from 4.7K to 1k. Modification has been implemented from week 9832 onwards.
MODEL: AS765C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS765C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS765C
SYMPTOM: Service hint
CURE: Service hint The tape mechanism can be activated even when the set is in standby mode.If the play button is pressed the cassette will move but no sound will be heard via the Loudspeakers.This problem can be prevented by changing 3510 on the Front board from 4k7 to 1k (4822 050 11002). REMARKS : Implemented in all sets from production week 832 onwards.
MODEL: AS780C
SYMPTOM: Modification
CURE: Modification To solve DBB LED still lighted at OFF mode, change resistor 3525 from 33k to 10k 5% 0,5W4822 116 83864.
MODEL: AS780C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel assembly 62 4822 532 13047Washer
MODEL: AS785C
SYMPTOM: Tweeter in loudspeaker box blown.
CURE: CAUSE: Replace the tweeter by an improved type which is available with ordering code is 4822 240 10257.
MODEL: AS785C
SYMPTOM: Modification
CURE: Modification To solve DBB LED still lighted at OFF mode, change resistor 3525 from 33k to 10k 5% 0,5W4822 116 83864.
MODEL: AS785C
SYMPTOM: Codenumber information
CURE: Codenumber information Below are additional spare parts now available for repairing the tape mechanism: Pos no.Service codeDescription ====== ========================= 61 4822 528 11275Flywheel 62 4822 532 13047Washer
MODEL: AS785C
SYMPTOM: Spare part information
CURE: Spare part information The 3CD Carousel changer module 3CDC DH has been replaced by the 3CDC MG module. This has been published with following Service Informations: A97-164 for FW725C and FW730C A97-165 for FW745C and FW750C A97-166 for FW770P A97-167 for FW780P A97-168 for FW790P A97-169 for FW710C A97-170 for FW365C A97-172 for FW355C A97-173 for FW375P A97-174 for AS660C and AS665C A97-175 for AS760C and AS765C A97-180 for FW352C A97-182 for FW372C A97-183 for FW392C A97-184 for FW395C A97-185 for FW373C A97-187 for AS670C and AS675C A97-188 for AS785C A97-189 for FW315C A97-190 for FW340C In all Service Informations the codenumber for the flex foil, pos 8002, is missing: Service Code for pos. 8002: 4822 320 11974, flex foil 15 pole (length = 190mm) ATTENTION: THIS FLEX FOIL IS NOT COMPATIBLE TO THE FLEX FOIL USED IN THE OLD 3CDC DH MODULE!
MODEL: AS785C
SYMPTOM: Parts list correction for old CDC-3 Module
CURE: Parts list correction for old CDC-3 Module On page 10-12 the service code for Flexfoil 17P is published; this cable is not used in the Module. The correct Flexfoil (15 pins instead of 17 pins) is published on page 10-14 as item 8002 with service codenumber 4822 320 11313. REMARKS : This correction is only applicable for the old CDC-3 Module with PCB printing 3104 113 3109..
MODEL: AS785C/41
SYMPTOM: Modification
CURE: Modification From week 9836 onwards, the Instruction For Use is changed to 4822 736 16482.
MODEL: AS9300
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9300
SYMPTOM: Service solution
CURE: Service solution Sets produced before week 9010 might show the following phenomenon: If the set is in the play-back mode and the power supply is interrupted (via the power switch) or the set is switched in the stand-by position (via the remote control) the tape can be partially erased. This also can happen if the cassette is recording - protected. To solve this problem the following components should be changed: - Capacitors 2722 and 2772 from 22 F, 25V into 1 F, 63V, - Capacitor 2725 from 470 F 10V into 1000 F, 10V. Above modification is implemented in the production from week 9010 onwards.
MODEL: AS9300
SYMPTOM: Uncomplete erase during recording of chrome casset
CURE: Uncomplete erase during recording of chrome cassette During recording of chrome cassette it may happens that existing information on the cassette tape is not completely erased. The problem is due to not enough erase current. To resolve this problem change capacitors 2783 from 3.3nF to 12nF, 2785 from 12nF to 15nF and 2786 from 220pF to 100pF.
MODEL: AS9400
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9400
SYMPTOM: Service solution
CURE: Service solution Sets produced before week 9010 might show the following phenomenon: If the set is in the play-back mode and the power supply is interrupted (via the power switch) or the set is switched in the stand-by position (via the remote control) the tape can be partially erased. This also can happen if the cassette is recording - protected. To solve this problem the following components should be changed: - Capacitors 2722 and 2772 from 22 F, 25V into 1 F, 63V, - Capacitor 2725 from 470 F 10V into 1000 F, 10V. Above modification is implemented in the production from week 9010 onwards.
MODEL: AS9402
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9406
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9408
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9410
SYMPTOM: No sound on tape deck 1 or 2.
CURE: If pin 12 of IC7551 is disconnected, record dubbing line, the sound comes up.Check/replace T7552 - BC548B on record control line. Faulty transistor may read OK.
MODEL: AS9410
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9412
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9416
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9418
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9500
SYMPTOM: Service solution
CURE: Service solution Sets produced before week 9010 might show the following phenomenon : If the set is in the play-back mode and the power supply is interrupted (via the power switch) or the set is switched in the stand-by position (via the remote control) the tape can be partially erased. This also can happen if the cassette is recording - protected. To solve this problem the following components should be changed : - Capacitors 2722 and 2772 from 22 F, 25V into 1 F, 63V, - Capacitor 2725 from 470 F 10V into 1000 F, 10V. Above modification is implemented in the production from week 9010 onwards.
MODEL: AS9506
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9510
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9516
SYMPTOM: Spare part information
CURE: Spare part information The clamping block (for mounting the Record Player dust cover) service code: 4822 417 10631 previous consists of a clamping block and hinge pen is now separated into two parts. a) Clamping block service code: 4822 417 10631 b) Pen service code: 4822 535 93499 Due to this change the undermentioned position nos. are changed to the new code. Pos 446 - AS305, AS9300 Pos 439 - AS405, TS450, AS9400, AS9402, AS9410, AS9412 Pos 437 - AS505, AS9500, AS9510 Pos 443 - AS9406, AS9408, AS9416, AS9418, AS9506, AS9516
MODEL: AS9600
SYMPTOM: Set shows unexpected and/or unpredictable behaviour.
CURE: Check whether Trade Mode is disabled. To check this, see Frequently Asked Questions, How to disable Trade Mode.
MODEL: AS9600
SYMPTOM: How to disable Trade Mode.
CURE: Press POWER OFF.
MODEL: AS9600
SYMPTOM: How to enable Trade Mode.
CURE: Switch on set and press following keys simultaneously: PROGRAM + FREQU.UP + POWER ON.
MODEL: AS9604
SYMPTOM: Set shows unexpected and/or unpredictable behaviour.
CURE: Check whether Trade Mode is disabled. To check this, see Frequently Asked Questions, How to disable Trade Mode.
MODEL: AS9604
SYMPTOM: How to enable Trade Mode.
CURE: Switch on set and press following keys simultaneously: PROGRAM + FREQU.UP + POWER ON.
MODEL: AS9604
SYMPTOM: How to disable Trade Mode.
CURE: Press POWER OFF.
MODEL: AW7010
SYMPTOM: No stereo reception.
CURE: Check capacitor 1nF of pilot oscillator.
MODEL: AW7140
SYMPTOM: No sound from set at all.
CURE: Check diode D6250 in power supply
MODEL: AW7140
SYMPTOM: Sometimes no recording.
CURE: Check switch S1702.
MODEL: AW7140
SYMPTOM: Hum and hiss at minimum volume are too loud.
CURE: Change following components. 2250, 2255to 4822 126 115921nF 3250, 3252to 4822 116 52219330 ohm 3251, 3253to 4822 116 5220282 ohm 3501to 4822 100 11276Slide VR 50k REMARKS : The changes have been implemented in the production from week 9426 onwards. This publication will be followed by a service information A94-569.
MODEL: AW7140
SYMPTOM: Cassette A gives a rattling sound during play mode.
CURE: Deck A out of position by a burr around one of the mounting pins of the front.
MODEL: AW7140
SYMPTOM: No sound at all.
CURE: Diode D6250 in power supply is shortcircuited
MODEL: AW7140
SYMPTOM: Replacement information
CURE: Replacement information - IC7101 TEA5711NT/N1 has been replaced by TEA5711/N2(4822 209 32746). Accompanying with this change, one resistor 3113 of 180 kOhm must be added parallel to capacitor 2120. REMARKS : New IC used in production from week 9329 onwards. This publication will be followed by a service information.
MODEL: AW7140
SYMPTOM: Spare part information
CURE: Spare part information Cloth Speaker Grilles 4822 458 30648 and 4822 458 30649 are no longer available. It is suggested to replaced the cloth grills by Metal Grilles 4822 458 40565 (for 'L') and 4822 458 40566 (for 'R').
MODEL: AW7140
SYMPTOM: Modification
CURE: Modification For 4822 691 20853, a cassette deck with motor EG-530-9BH will be delivered. For circuit and components changes please refer to service information A94-555 (4822 725 24576).
MODEL: AW7140/01
SYMPTOM: 152 kHz mis-alignment
CURE: 152 kHz mis-alignment - In order to solve the problem of 152 kHz mis-alignment in FM stereo mode, the resistor 3102 has been changed to 68k ohm (4822 116 52297).
MODEL: AW7150
SYMPTOM: Cracking sound from left speaker on both tape decks.
CURE: Check R3756.
MODEL: AW7150
SYMPTOM: Tape deck 1 does immediately switch off after pushing play.
CURE: Lubricate Pos 71
MODEL: AW7150
SYMPTOM: Bad sound when playing back deck 1. Speed too low or too high.
CURE: Fault caused by pressure roller arm pos.10 loose on top side. Remount pressure roller.
MODEL: AW7150
SYMPTOM: Modification
CURE: Modification For AW7150/11P and AW7250/11P only: The tuning capacitor 2101 is replaced by 4822 125 11104. To obtain optimum alignment, following components have to be changed too : 21165322 122 341073.9pF 0.5pF N470 21244822 126 142673.3pF 0.5pF N3300 REMARKS : Changes had been implemented in production from week 9723 onwards.
MODEL: AW7150
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 503) is now available via service codenumber 4822 402 10786.
MODEL: AW7150
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AW7150
SYMPTOM: Modification
CURE: Modification In order to increase amplification reserve from +4 dB to +6 dB, the resistors 3260 and 3261 have been changed from 47k to 22k. REMARKS : Modification has been implemented in production from production start onwards.
MODEL: AW7160
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 503) is now available via service codenumber 4822 402 10786.
MODEL: AW7224
SYMPTOM: Totally inoperative.
CURE: On checking the power supply it was found that the fuse had blown and the suppresion capacitor across the bridge rectifier had gone short circuit. Replacing these components and the bridge restored operation.
MODEL: AW7224
SYMPTOM: SW reception is distorted by an oscillating signal.
CURE: To solve problem of SW oscillation, item 2753 a capacitor of 100nF/25V has been added. Item 2753 has been connected between the cathodes of diodes 6257 and 6259. REMARKS : In revised service manual AW7224/AW7324 (4822 725 24115) this modification has been published already.
MODEL: AW7250
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AW7250
SYMPTOM: Modification
CURE: Modification In order to increase amplification reserve from +4 dB to +6 dB, the resistors 3260 and 3261 have been changed from 47k to 22k. REMARKS : Modification has been implemented in production from production start onwards.
MODEL: AW7250
SYMPTOM: Modification
CURE: Modification For AW7150/11P and AW7250/11P only: The tuning capacitor 2101 is replaced by 4822 125 11104. To obtain optimum alignment, following components have to be changed too : 21165322 122 341073.9pF 0.5pF N470 21244822 126 142673.3pF 0.5pF N3300 REMARKS : Changes had been implemented in production from week 9723 onwards.
MODEL: AW7250
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 503) is now available via service codenumber 4822 402 10786.
MODEL: AW7304
SYMPTOM: Intermittent loss of tuning information in memory
CURE: It has been found that loss of memory information with the above models may be caused by an intermittent connection to one of the memory backup batteries.On sets where this is a problem it is advisable to check that the raised pip on the positive contact for the lower backup battery lines up with the centre positive stud on the battery. If this is not the case it will be necessary to open the cabinet and reposition the battery contact in the rear moulding.
MODEL: AW7324
SYMPTOM: SW reception is distorted by an oscillating signal.
CURE: To solve problem of SW oscillation, item 2753 a capacitor of 100nF/25V has been added. Item 2753 has been connected between the cathodes of diodes 6257 and 6259. REMARKS : In revised service manual AW7224/AW7324 (4822 725 24115) this modification has been published already.
MODEL: AW7404
SYMPTOM: Intermittent loss of tuning information in memory
CURE: It has been found that loss of memory information with the above models may be caused by an intermittent connection to one of the memory backup batteries.On sets where this is a problem it is advisable to check that the raised pip on the positive contact for the lower backup battery lines up with the centre positive stud on the battery. If this is not the case it will be necessary to open the cabinet and reposition the battery contact in the rear moulding.
MODEL: AW7490
SYMPTOM: Part number correction for cassette deck motor
CURE: Part number correction for cassette deck motor The part number given in the service manual for the cassette deck motor (4822 361 21171) is incorrect. The correct part number is 4822 361 21301.
MODEL: AW7520
SYMPTOM: Left hand recorder does not record.
CURE: Check the connector to the R/P head.
MODEL: AW7520
SYMPTOM: The right-hand tape deck does stop spontaneously.
CURE: Check whether the play bracket does operate the switch lever correctly. Remount the play bracket.
MODEL: AW7520
SYMPTOM: Sometimes record does not function.
CURE: Check Record/Playback switch S3 (4822 276 13346).
MODEL: AW7520
SYMPTOM: Tape damages.
CURE: Check spring pos.45.Might be loose.
MODEL: AW7520
SYMPTOM: Both tape decks inoperative.
CURE: Check motor belt of both decks. They might be loose at the motor side.
MODEL: AW7520
SYMPTOM: The left deck stops playing halfway the tape.
CURE: Check whether there is some plastic burr on pos 1 of deck. It may happen that by the plastic burr pos.38 sometimes gets stuck.
MODEL: AW7520
SYMPTOM: Cassette lid does not close.
CURE: Check whether the eject bracket pos 62 is broken. (4822 403 53815).
MODEL: AW7520
SYMPTOM: Cassette lid does not open.
CURE: Cassette lid spring might be loose. Remount the spring.
MODEL: AW7520
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck type TK20FX-SW is now available via service code 4822 691 10493.
MODEL: AW7520
SYMPTOM: Modification
CURE: Modification Because of quality improvement and logistic reasons, from week 9448 onwards, the tape deck was changed from TN21ZSW-1245 to TK20FX-SW. REMARKS : For Service information publication of new tape deck, see service information A95-559 (4822 725 25401).
MODEL: AW7530
SYMPTOM: The set does sometimes produce a tickingsound from the speakers.
CURE: Check connections of resistor R3540.
MODEL: AW7550
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: For AW7550/14, the servicecode of the band switch S1 should read 4822 277 11626.
MODEL: AW7560
SYMPTOM: Service Manual, Tape Deck partslist
CURE: Service Manual, Tape Deck partslist - The type number of the motor is changed to M9T90U20-T. Service code is 4822 361 10958. REMARKS : Design changed since production start.
MODEL: AW7711
SYMPTOM: Spare part information
CURE: Spare part information The telescopic aerial (4822 303 30399) can no longer be supplied. As replacement 4822 303 30448 is recommended.
MODEL: AW7720
SYMPTOM: Spare part information
CURE: Spare part information If the telescopic aerial 4822 303 30423 is not available, it can be replaced by 4822 303 14065.To mount the new aerial, a M3 hexagonal nut is needed.
MODEL: AW7730
SYMPTOM: Spare part information
CURE: Spare part information If the telescopic aerial 4822 303 30423 is not available, it can be replaced by 4822 303 14065.To mount the new aerial, a M3 hexagonal nut is needed.
MODEL: AW7730
SYMPTOM: Service Manual correction
CURE: Service Manual correction - On page 12, the service code of the R/P head (item 66) should read 4822 249 10494.
MODEL: AW7760
SYMPTOM: Service Manual, Elecrical partslist
CURE: Service Manual, Elecrical partslist - L4 of AW7760/11 is changed to fixed inductor 0.47 uH. Service code is 4822 157 10686. REMARKS : Design changed since production start.
MODEL: AW7820
SYMPTOM: Spare part information
CURE: Spare part information If the telescopic aerial 4822 303 30423 is not available, it can be replaced by 4822 303 14065.To mount the new aerial, a M3 hexagonal nut is needed.
MODEL: AW7892
SYMPTOM: Circuit diagram corrections around IC202
CURE: Circuit diagram corrections around IC202 IC202 contains record amplifiers and automatic level control (ALC) circuitry for both left and right channels.The voltages were measured with a DVM with the set in RECORD mode and no signal input.
MODEL: AW7990
SYMPTOM: Partslist
CURE: Partslist - The auto-reverse play back head 4822 249 30154 has been replaced by 4822 249 30198.
MODEL: AW7992
SYMPTOM: Partslist
CURE: Partslist - The auto-reverse play back head 4822 249 30154 has been replaced by 4822 249 30198.
MODEL: AZ1000
SYMPTOM: The CD part shuts off after 2 tracks.
CURE: Check IC302 for temperature dependency.
MODEL: AZ1000
SYMPTOM: No sound from the CD player. Sometimes OK, when moving the set.
CURE: Check soldering of IC304.
MODEL: AZ1000
SYMPTOM: Laser does not light up after some time.
CURE: Check connectors of RCD.
MODEL: AZ1000
SYMPTOM: Modification
CURE: Modification From April 1998 onwards, with factory code starting from KZ019814.., CDM CD94V5 (4822 691 10654) is used in production to supersede the original CD90V1Q.For servicing please refer to Service Information A98-560 (4822 725 26175).
MODEL: AZ1000
SYMPTOM: Codenumber correction
CURE: Codenumber correction - The service codenumber of the CDM (CD94V5) in service partslist and Service Information A98-560 is wrong.It should be 4822 691 10776.
MODEL: AZ1000
SYMPTOM: Service Manual, Exploded View diagram.
CURE: Service Manual, Exploded View diagram. The Magnet (4822 526 10659) is not drawn on the exploded view diagram.It is located under item 23 4822 401 11641, Clamper.
MODEL: AZ1001
SYMPTOM: Modification
CURE: Modification From April 1998 onwards, with factory code starting from KZ019814.., CDM CD94V5 (4822 691 10654) is used in production to supersede the original CD90V1Q.For servicing please refer to Service Information A98-560 (4822 725 26175).
MODEL: AZ1001
SYMPTOM: Codenumber correction
CURE: Codenumber correction - The service codenumber of the CDM (CD94V5) in service partslist and Service Information A98-560 is wrong.It should be 4822 691 10776.
MODEL: AZ1002
SYMPTOM: Codenumber correction
CURE: Codenumber correction - The service codenumber of the CDM (CD94V5) in service partslist and Service Information A98-560 is wrong.It should be 4822 691 10776.
MODEL: AZ1002
SYMPTOM: Modification
CURE: Modification From April 1998 onwards, with factory code starting from KZ019814.., CDM CD94V5 (4822 691 10654) is used in production to supersede the original CD90V1Q.For servicing please refer to Service Information A98-560 (4822 725 26175).
MODEL: AZ1005
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-551 (3140 785 22310). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1005
SYMPTOM: Correction to the Service Manual
CURE: The codenumber for the CD Door Switch is missing. The switch is available with codenumber 4822 278 90739.
MODEL: AZ1007
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-551 (3140 785 22310). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1009
SYMPTOM: The Bracket-Cassette is broken at the support area
CURE: The Bracket-Cassette (item 502 for AZ1009, AZ1010 resp. item 501 for AZ1015) is broken at the support area for the Cassette Door Spring (item 404). Tooling has been modified (increased wall thickness and added radius at the corner). Improved Bracket-Cassettes are available with codenumber 3103 304 64080. REMARKS : Modified parts are used in production from week 9945 onwards. IRIS CODE: 1613 IRIS CODE: 311D
MODEL: AZ1009
SYMPTOM: CD-drive CD94V5T1 has been replaced by the new type
CURE: CD-drive CD94V5T1 has been replaced by the new type DA114822 691 10747. To adapt the electronic circuitry to the new CD-drive following components have been changed on the Combi Board: 3828 changed from 18k to 68k (4822 116 52297) 3851 changed from 10k to 15k (4822 116 52244) 3853 changed from 15k to 18k (4822 116 52251) 3855 changed from 33k to 27k (4822 116 52264) REMARKS : Modification has been implemented in production from week 9912 onwards. Sets with the new CD-drive are marked with factory change code KT03. This info will be followed by Service Information A99-350 (4822 725 26032).
MODEL: AZ1010
SYMPTOM: The Bracket-Cassette is broken at the support area
CURE: The Bracket-Cassette (item 502 for AZ1009, AZ1010 resp. item 501 for AZ1015) is broken at the support area for the Cassette Door Spring (item 404). Tooling has been modified (increased wall thickness and added radius at the corner). Improved Bracket-Cassettes are available with codenumber 3103 304 64080. REMARKS : Modified parts are used in production from week 9945 onwards. IRIS CODE: 1613 IRIS CODE: 311D
MODEL: AZ1010
SYMPTOM: the following parts were added to the service partslist:
CURE: pos code numberarticle description 507 3103 307 96350 button set CD1 lacquered 511 3103 307 96360 button set CD2 lacquered
MODEL: AZ1010
SYMPTOM: CD-drive CD94V5T1 has been replaced by the new type
CURE: CD-drive CD94V5T1 has been replaced by the new type DA114822 691 10747. To adapt the electronic circuitry to the new CD-drive following components have been changed on the Combi Board: 3828 changed from 18k to 68k (4822 116 52297) 3851 changed from 10k to 15k (4822 116 52244) 3853 changed from 15k to 18k (4822 116 52251) 3855 changed from 33k to 27k (4822 116 52264) REMARKS : Modification has been implemented in production from week 9912 onwards. Sets with the new CD-drive are marked with factory change code KT03. This info will be followed by Service Information A99-350 (4822 725 26032).
MODEL: AZ1015
SYMPTOM: The Bracket-Cassette is broken at the support area
CURE: The Bracket-Cassette (item 502 for AZ1009, AZ1010 resp. item 501 for AZ1015) is broken at the support area for the Cassette Door Spring (item 404). Tooling has been modified (increased wall thickness and added radius at the corner). Improved Bracket-Cassettes are available with codenumber 3103 304 64080. REMARKS : Modified parts are used in production from week 9945 onwards. IRIS CODE: 1613 IRIS CODE: 311D
MODEL: AZ1015
SYMPTOM: Correction to the Electrical Partslist:
CURE: Correction to the Electrical Partslist: - The service codenumbers of the Mains transformers have been mixed up. They should read: 4822 146 10877 for /00 and /14 versions 4822 146 11118 for /01 version 4822 146 10876 for /17 version
MODEL: AZ1020
SYMPTOM: Modification
CURE: Modification During production following modifications have been implemented. 1. To prevent residual images on LCD in tape mode: Resistor 3863 is changed to 470 ohm (4822 116 83883). 2. To improve muting function in tuner search mode: Resistor 3400 is changed to 4.7K (4822 116 52283). 3. To improve sound quality: Capacitors 2301 and 2302 are changed to 22nF (4822 121 70619) Resistors 3303 and 3304 are changed to 820 ohm (4822 116 52231)
MODEL: AZ1025
SYMPTOM: Modification
CURE: Modification In order to increase the tuner output power, following parts have been changed on the Audio Board: Resistors 3307 and 3308 changed to 150 Ohm (4822 116 83868) Resistors 3595 and 3596 changed to 27k Ohm (4822 116 52264) Resistors 3597 and 3598 replaced by jumpers REMARKS : Modification has been implemented from production start onwards.
MODEL: AZ1100
SYMPTOM: The mains transformer is defective.
CURE: Replace capacitors C801, C802, C803 and C804 by ceramic capacitors of 0.022uF/63V (4822 122 30103). REMARKS : Modification is introduced in production from week 9633 onwards. When sets produced before week 9633 or the four capacitors are marked with 'AEC' are brought in for repair, we suggest to replace the capacitors.
MODEL: AZ1100
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist Position number 26 is listed twice. Correct is: 24 4822 410 10634 Band/Function Knob 26 4822 410 10632 Volume Knob
MODEL: AZ1100
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-552 (3140 785 22320). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1100
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: The tuning capacitor is missing.It is available via service code 4822 125 11097.
MODEL: AZ1100
SYMPTOM: Spare part information
CURE: Spare part information The mains cord set for /17 versions is available with service code 4822 321 10862.
MODEL: AZ1100
SYMPTOM: Correction Service Manual, Tape deck:
CURE: Correction Service Manual, Tape deck: - The type number of motor should be EG-530YD-9BH and is available via service code 4822 361 21592.
MODEL: AZ1100
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1100
SYMPTOM: Modification
CURE: Modification From september 1997 onwards, the CDM97MK1 is used. Codenumber is 4822 691 10334. The new diagram is published in A97-589 (4822 725 25647) Factory code KZ04
MODEL: AZ1100
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1100
SYMPTOM: Modification
CURE: Modification During production, the motor on the tape deck motor changed. The type of the new motor is EG-530AD-2B with service codenumber 4822 361 21599. REMARKS : Both motors EG-530AD-2B and M9T12U24-1 are interchangeable.
MODEL: AZ1101
SYMPTOM: The mains transformer is defective.
CURE: Replace capacitors C801, C802, C803 and C804 by ceramic capacitors of 0.022uF/63V (4822 122 30103). REMARKS : Modification is introduced in production from week 9633 onwards. When sets produced before week 9633 or the four capacitors are marked with 'AEC' are brought in for repair, we suggest to replace the capacitors.
MODEL: AZ1101
SYMPTOM: Radio and cassette part inoperative.
CURE: Check diode D604 and resistor R615.
MODEL: AZ1101
SYMPTOM: CD-player does not start up
CURE: Check whether the doorswitch makes mechanical contact but no electrical contact. Quick action switch pos 59; 4822 278 90739
MODEL: AZ1101
SYMPTOM: Hum from speakers at all sources.
CURE: Check C614 for interruption.
MODEL: AZ1101
SYMPTOM: Squeaking sound from right channel.
CURE: Check IC103 (CXD2508AQ).
MODEL: AZ1101
SYMPTOM: The CD player is inoperative after some time.
CURE: The reset signal is 2.5V, but should be 5V. Check C181.
MODEL: AZ1101
SYMPTOM: The CD does not find the focus point
CURE: Check connector CN101.
MODEL: AZ1101
SYMPTOM: The turntable motor starts rotating at maximum speed.
CURE: The voltage at IC103-68,71,72 is just 3 V, but should be 5V. Check IC103.
MODEL: AZ1101
SYMPTOM: CD SEARCH has no function and replaced by SKIP function.
CURE: When we start the CD and press PLAY button before reading the TOC, there will be possible that the CD SEARCH function will be deleted and be replaced by SKIP function even when the SEARCH button was keep pressing.When the CD is restart, symptom may not be reproduced.
MODEL: AZ1101
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist Position number 26 is listed twice. Correct is: 24 4822 410 10634 Band/Function Knob 26 4822 410 10632 Volume Knob
MODEL: AZ1101
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-552 (3140 785 22320). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1101
SYMPTOM: Modification
CURE: Modification During production, the motor on the tape deck motor changed. The type of the new motor is EG-530AD-2B with service codenumber 4822 361 21599. REMARKS : Both motors EG-530AD-2B and M9T12U24-1 are interchangeable.
MODEL: AZ1101
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1101
SYMPTOM: Correction Service Manual, Tape deck:
CURE: Correction Service Manual, Tape deck: - The type number of motor should be EG-530YD-9BH and is available via service code 4822 361 21592.
MODEL: AZ1101
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1101
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: The tuning capacitor is missing.It is available via service code 4822 125 11097.
MODEL: AZ1101
SYMPTOM: Spare part information
CURE: Spare part information The mains cord set for /17 versions is available with service code 4822 321 10862.
MODEL: AZ1101
SYMPTOM: Modification
CURE: Modification From september 1997 onwards, the CDM97MK1 is used. Codenumber is 4822 691 10334. The new diagram is published in A97-589 (4822 725 25647) Factory code KZ04
MODEL: AZ1102
SYMPTOM: The mains transformer is defective.
CURE: Replace capacitors C801, C802, C803 and C804 by ceramic capacitors of 0.022uF/63V (4822 122 30103). REMARKS : Modification is introduced in production from week 9633 onwards. When sets produced before week 9633 or the four capacitors are marked with 'AEC' are brought in for repair, we suggest to replace the capacitors.
MODEL: AZ1102
SYMPTOM: CD SEARCH has no function and replaced by SKIP function.
CURE: When we start the CD and press PLAY button before reading the TOC, there will be possible that the CD SEARCH function will be deleted and be replaced by SKIP function even when the SEARCH button was keep pressing.When the CD is restart, symptom may not be reproduced.
MODEL: AZ1102
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist Position number 26 is listed twice. Correct is: 24 4822 410 10634 Band/Function Knob 26 4822 410 10632 Volume Knob
MODEL: AZ1102
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-552 (3140 785 22320). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1102
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1102
SYMPTOM: Spare part information
CURE: Spare part information The mains cord set for /17 versions is available with service code 4822 321 10862.
MODEL: AZ1102
SYMPTOM: Modification
CURE: Modification During production, the motor on the tape deck motor changed. The type of the new motor is EG-530AD-2B with service codenumber 4822 361 21599. REMARKS : Both motors EG-530AD-2B and M9T12U24-1 are interchangeable.
MODEL: AZ1102
SYMPTOM: Correction Service Manual, Tape deck:
CURE: Correction Service Manual, Tape deck: - The type number of motor should be EG-530YD-9BH and is available via service code 4822 361 21592.
MODEL: AZ1102
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1102
SYMPTOM: Modification
CURE: Modification From september 1997 onwards, the CDM97MK1 is used. Codenumber is 4822 691 10334. The new diagram is published in A97-589 (4822 725 25647) Factory code KZ04
MODEL: AZ1102
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: The tuning capacitor is missing.It is available via service code 4822 125 11097.
MODEL: AZ1103
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist Position number 26 is listed twice. Correct is: 24 4822 410 10634 Band/Function Knob 26 4822 410 10632 Volume Knob
MODEL: AZ1103
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-552 (3140 785 22320). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1103
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1103
SYMPTOM: Modification
CURE: Modification During production, the motor on the tape deck motor changed. The type of the new motor is EG-530AD-2B with service codenumber 4822 361 21599. REMARKS : Both motors EG-530AD-2B and M9T12U24-1 are interchangeable.
MODEL: AZ1103
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1103
SYMPTOM: Modification
CURE: Modification From september 1997 onwards, the CDM97MK1 is used. Codenumber is 4822 691 10334. The new diagram is published in A97-589 (4822 725 25647) Factory code KZ04
MODEL: AZ1104
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist Position number 26 is listed twice. Correct is: 24 4822 410 10634 Band/Function Knob 26 4822 410 10632 Volume Knob
MODEL: AZ1104
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-552 (3140 785 22320). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1104
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1104
SYMPTOM: Modification
CURE: Modification During production, the motor on the tape deck motor changed. The type of the new motor is EG-530AD-2B with service codenumber 4822 361 21599. REMARKS : Both motors EG-530AD-2B and M9T12U24-1 are interchangeable.
MODEL: AZ1104
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1105
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1105
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1106
SYMPTOM: Correction Service Manual, mechanical partslist
CURE: Correction Service Manual, mechanical partslist - 4822 526 10625 is the service code of item 35 which is a magnet ring. Item 33 is not a service article.
MODEL: AZ1106
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CD main board was replaced by CD97 module.Also a new Front Board and an additional Regulation Board has been applied.Reference is made to Service Information A97-589 (4822 725 25647). REMARKS : The Factory code of the sets with CD97 module was starting from KZ049740...
MODEL: AZ1110
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-553 (3140 785 22330). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1111
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-553 (3140 785 22330). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1111
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist The service codenumber of pos. 407, the Tuning Knob should read 4822 410 11843.
MODEL: AZ1112
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-553 (3140 785 22330). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1113
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-553 (3140 785 22330). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1114
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-553 (3140 785 22330). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1116
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-555 (3140 785 22360). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1116
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ1117
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-555 (3140 785 22360). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1117
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ1118
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-555 (3140 785 22360). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1118
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ1119
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-555 (3140 785 22360). REMARKS : Alternative CD modules are used in production from week 0013 onwards.
MODEL: AZ1119
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ1120
SYMPTOM: following parts have been changed to improve DBB performance:
CURE: Capacitor 2503 and 2504 changed to 68nF (5322 121 42465) REMARKS : Modification has been implemented in production from week 9921onwards.
MODEL: AZ1120
SYMPTOM: improve the ESD behaviour
CURE: to improve the ESD behaviour, coil 5100 has been changed to 2.2mH (3198 018 12280). REMARKS : Modification is implemented from production start onwards.
MODEL: AZ1200
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1200
SYMPTOM: Tuning cord loose because one pulley is loose from its axle.
CURE: The diameter of the centre hole of pulley is 0.2 mm larger than the specification.As a service solution, we suggest to add a fibre washer on the top of pulley and melt the axle with a soldering iron in order to secure the pulley. REMARKS : The mould of the pulley is modified and implemented in production from week 9839 onwards.
MODEL: AZ1200
SYMPTOM: In order to reduce the distortion of CD-recordings
CURE: In order to reduce the distortion of CD-recordings, following modifications has been implemented in production: 1. 3529 and 3530 are changed to 22K (4822 116 52257) 2. 3578 and 3579 are changed to 22K (4822 116 52257)
MODEL: AZ1202
SYMPTOM: The system goes in hang-up when switched to CD from TUNER or TAPE.
CURE: On the Front board, add a capacitor 1nF/50V (4822 122 33197) from pin 23 of 7401 to ground. REMARKS : Modification was implemented in production from week 9740 onwards.
MODEL: AZ1202
SYMPTOM: CD is not functioning
CURE: Check soldering of capacitor item 2836. REMARKS : Capacitor 2836 is fixed in production from week 9819 onwards.
MODEL: AZ1202
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1202
SYMPTOM: Tuning cord loose because one pulley is loose from its axle.
CURE: The diameter of the centre hole of pulley is 0.2 mm larger than the specification.As a service solution, we suggest to add a fibre washer on the top of pulley and melt the axle with a soldering iron in order to secure the pulley. REMARKS : The mould of the pulley is modified and implemented in production from week 9839 onwards.
MODEL: AZ1202
SYMPTOM: parts have been changed to re-adjust the amplification
CURE: following parts have been changed to re-adjust the amplification reserve of CD signal. Resistors 3302 and 3303 changed to 270R (3198 011 02710) Resistors 3595 and 3596 changed to 22k (3198 011 02230) Resistors 3597 and 3598 changed to 15k (3198 011 01530) REMARKS : Modification has been implemented in production from week 9915 onwards.
MODEL: AZ1202
SYMPTOM: The Cassette Door Spring (pos. 407) looses out easily
CURE: To solve the problem, the shape of the spring has been changed. The code number of the new spring is 3140 111 00620. REMARKS : Modification has been implemented in production from week 9915 onwards.
MODEL: AZ1202
SYMPTOM: Correction to the Mechanical Partslist:
CURE: Correction to the Mechanical Partslist: - The service codenumber of the Knob-Open (item 439) for Silver versions should read 4822 410 11392.
MODEL: AZ1202
SYMPTOM: In order to reduce the distortion of CD-recordings
CURE: In order to reduce the distortion of CD-recordings, following modifications has been implemented in production: 1. 3529 and 3530 are changed to 22K (4822 116 52257) 2. 3578 and 3579 are changed to 22K (4822 116 52257)
MODEL: AZ1202
SYMPTOM: Correction and modification
CURE: Correction and modification - The service code of the CD Drive (item 454) on the exploded view diagram is missing.It should read 4822 691 10587. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ1202
SYMPTOM: Codenumber information
CURE: Codenumber information The FFC cable (15-pins) connecting CD light-pen to CD97 board is now available via following service codenumber: pos 18004822 320 12178FFC/15P/65mm
MODEL: AZ1202
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1203
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1203
SYMPTOM: Correction to electrical partslist
CURE: Correction to electrical partslist On the Front board, the service codenumber of IC 7400 was changed to 4822 209 16811. 4822 209 15839 can still be used except for /14 versions.
MODEL: AZ1205
SYMPTOM: Volume setting is reset to level 11 when power is switched off.
CURE: Problem can be solved by changing capacitor 2401 from 100 uF to 47 uF (4822 124 81286). REMARKS : Modification has been implemented in production from week 9901 onwards. IRIS CODE 2525
MODEL: AZ1205
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1205
SYMPTOM: Tuning cord loose because one pulley is loose from its axle.
CURE: The diameter of the centre hole of pulley is 0.2 mm larger than the specification.As a service solution, we suggest to add a fibre washer on the top of pulley and melt the axle with a soldering iron in order to secure the pulley. REMARKS : The mould of the pulley is modified and implemented in production from week 9839 onwards.
MODEL: AZ1205
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist The codenumber of item 437, the Tray-CD should read 4822 418 10352.
MODEL: AZ1207
SYMPTOM: CD is not functioning
CURE: Check soldering of capacitor item 2836. REMARKS : Capacitor 2836 is fixed in production from week 9819 onwards.
MODEL: AZ1207
SYMPTOM: Volume setting is reset to level 11 when power is switched off.
CURE: Problem can be solved by changing capacitor 2401 from 100 uF to 47 uF (4822 124 81286). REMARKS : Modification has been implemented in production from week 9901 onwards. IRIS CODE 2525
MODEL: AZ1207
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1207
SYMPTOM: The Cassette Door Spring (pos. 407) looses out easily
CURE: To solve the problem, the shape of the spring has been changed. The code number of the new spring is 3140 111 00620. REMARKS : Modification has been implemented in production from week 9915 onwards.
MODEL: AZ1207
SYMPTOM: Correction electrical partslist:
CURE: Correction electrical partslist: - On the Audio Board: 22644822 126 135810.22F 20% 50V 22654822 126 135810.22F 20% 50V 25964822 121 5138710nF 20% 50V 36664822 116 52175100R5% 0.5W 36674822 116 52175100R5% 0.5W
MODEL: AZ1207
SYMPTOM: Codenumber information
CURE: Codenumber information The FFC cable (15-pins) connecting CD light-pen to CD97 board is now available via following service codenumber: pos 18004822 320 12178FFC/15P/65mm
MODEL: AZ1208
SYMPTOM: Remote Control does not work when battery voltage is low.
CURE: Change 3452 from 220 ohm to 33 ohm (4822 116 52191). REMARKS : Modification is implemented in production from week 9836 onwards.
MODEL: AZ1208
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1208
SYMPTOM: Correction to electrical partslist
CURE: Correction to electrical partslist On the Front board, the service codenumber of IC 7400 was changed to 4822 209 16811. 4822 209 15839 can still be used except for /14 versions.
MODEL: AZ1209
SYMPTOM: Remote Control does not work when battery voltage is low.
CURE: Change 3452 from 220 ohm to 33 ohm (4822 116 52191). REMARKS : Modification is implemented in production from week 9836 onwards.
MODEL: AZ1209
SYMPTOM: CD is not functioning
CURE: Check soldering of capacitor item 2836. REMARKS : Capacitor 2836 is fixed in production from week 9819 onwards.
MODEL: AZ1209
SYMPTOM: No display in CD mode at low battery voltage.
CURE: Problem can be solved by changing resistor 3251 from 470 Ohm to 390 Ohm (4822 116 83881). REMARKS : Modification has been implemented in production from week 9850 onwards. IRIS CODE C13X
MODEL: AZ1209
SYMPTOM: The Cassette Door Spring (pos. 407) looses out easily
CURE: To solve the problem, the shape of the spring has been changed. The code number of the new spring is 3140 111 00620. REMARKS : Modification has been implemented in production from week 9915 onwards.
MODEL: AZ1209
SYMPTOM: Correction and modification
CURE: Correction and modification - The service code of the CD Drive (item 454) on the exploded view diagram is missing.It should read 4822 691 10587. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ1209
SYMPTOM: Correction to electrical partslist
CURE: Correction to electrical partslist On the Front board, the service codenumber of IC 7400 was changed to 4822 209 16811. 4822 209 15839 can still be used except for /14 versions.
MODEL: AZ1209
SYMPTOM: Codenumber information
CURE: Codenumber information The FFC cable (15-pins) connecting CD light-pen to CD97 board is now available via following service codenumber: pos 18004822 320 12178FFC/15P/65mm
MODEL: AZ1209
SYMPTOM: Correction electrical partslist:
CURE: Correction electrical partslist: - On the Audio Board: 22644822 126 135810.22F 20% 50V 22654822 126 135810.22F 20% 50V 25964822 121 5138710nF 20% 50V 36664822 116 52175100R5% 0.5W 36674822 116 52175100R5% 0.5W
MODEL: AZ1302
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1302
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1302
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1302
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1307
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ1307
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1307
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ1307
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ1307
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2715 and 2722 are changed from 22nF to 33nF to improve ALC distortion at strong signal. 2733 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2732 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27154822 126 13174Cer Tub. 50V33nF 30% 27224822 126 13174Cer Tub. 50V33nF 30% 27324822 126 11714Cer Tub. 50V 4.7nF 20% 27334822 121 43144Cap Poly 50V22nF 10% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ1307
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1307
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1307
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1308
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ1308
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1308
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1308
SYMPTOM: Modification
CURE: Modification For AZ1308/11 only: The tuning capacitor 2101 is replaced by 4822 125 11104. To obtain optimum alignment, following components have to be changed too : 21164822 126 142661 pF 0.25pF N470 21244822 126 142673.3pF 0.5pF N3300 REMARKS : Changes had been implemented in production from week 9750 onwards.
MODEL: AZ1308
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ1308
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ1308
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1308
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1308
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2715 and 2722 are changed from 22nF to 33nF to improve ALC distortion at strong signal. 2733 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2732 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27154822 126 13174Cer Tub. 50V33nF 30% 27224822 126 13174Cer Tub. 50V33nF 30% 27324822 126 11714Cer Tub. 50V 4.7nF 20% 27334822 121 43144Cap Poly 50V22nF 10% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ1402
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1402
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1407
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ1407
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1407
SYMPTOM: Drawer opens spontanuously
CURE: Toothed wheels pos.202 and 204 out of position. Remount wheels pos.202 and 204.
MODEL: AZ1407
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1407
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1407
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1407
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2715 and 2722 are changed from 22nF to 33nF to improve ALC distortion at strong signal. 2733 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2732 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27154822 126 13174Cer Tub. 50V33nF 30% 27224822 126 13174Cer Tub. 50V33nF 30% 27324822 126 11714Cer Tub. 50V 4.7nF 20% 27334822 121 43144Cap Poly 50V22nF 10% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ1407
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ1407
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ1412
SYMPTOM: At switch-on,POP indicator is ON, but no POP sound effect.
CURE: The problem is caused by a software bug. Two solutions are available: - Short Term : Add a transistor BC557C (4822 130 42231) and a resistor 4.7k (4822 116 52283).Connect the collector (C) of BC557B to the junction of 3512 and 3475, the emitter (E) to +M and the base (B) via a 4.7k resistor to junction of 3464 and 3465. - Long term: Replace microprocessor IC 7400 by 4822 209 17228. REMARKS : - Short term : Modification is implemented in production from week 9830 onwards. - Long term: New MPU IC will be used from week 9842 onwards.
MODEL: AZ1508
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ1508
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1508
SYMPTOM: Drawer opens spontanuously
CURE: Toothed wheels pos.202 and 204 out of position. Remount wheels pos.202 and 204.
MODEL: AZ1508
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist In the Exploded view diagram of tape transport, the code number of item 74, the Eject Hook should be 4822 403 70968.
MODEL: AZ1508
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ1508
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2715 and 2722 are changed from 22nF to 33nF to improve ALC distortion at strong signal. 2733 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2732 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27154822 126 13174Cer Tub. 50V33nF 30% 27224822 126 13174Cer Tub. 50V33nF 30% 27324822 126 11714Cer Tub. 50V 4.7nF 20% 27334822 121 43144Cap Poly 50V22nF 10% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ1508
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1508
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ1508
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1509
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ1509
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ1509
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1518
SYMPTOM: At switch-on,POP indicator is ON, but no POP sound effect.
CURE: The problem is caused by a software bug. Two solutions are available: - Short Term : Add a transistor BC557C (4822 130 42231) and a resistor 4.7k (4822 116 52283).Connect the collector (C) of BC557B to the junction of 3512 and 3475, the emitter (E) to +M and the base (B) via a 4.7k resistor to junction of 3464 and 3465. - Long term: Replace microprocessor IC 7400 by 4822 209 17228. REMARKS : - Short term : Modification is implemented in production from week 9830 onwards. - Long term: New MPU IC will be used from week 9842 onwards.
MODEL: AZ1560
SYMPTOM: Correction to the Service Manual
CURE: Electrical Partslist On Control board: 2400 5322 126 10223 47nF 10% X7R 63V 3422 4822 051 20332 3.3k 5% 0.1W 3483 4822 051 20105 1M 5% 0.1W 3487 4822 051 20124 120k 5% 0.1W On Feature board: 2556 4822 126 14585 100nF 20% X7R 16V 2557 4822 126 14585 100nF 20% X7R 16V 2574 4822 126 13188 15nF 20% X7R 50V 2575 4822 126 13188 15nF 20% X7R 50V 3593 4822 051 20683 68k 5% 0.1W 3594 4822 051 20683 68k 5% 0.1W 3612 4822 117 12521 68 5% 0.1W
MODEL: AZ1565
SYMPTOM: Correction to the Service Manual
CURE: Electrical Partslist On Control board: 2400 5322 126 10223 47nF 10% X7R 63V 3422 4822 051 20332 3.3k 5% 0.1W 3483 4822 051 20105 1M 5% 0.1W 3487 4822 051 20124 120k 5% 0.1W On Feature board: 2556 4822 126 14585 100nF 20% X7R 16V 2557 4822 126 14585 100nF 20% X7R 16V 2574 4822 126 13188 15nF 20% X7R 50V 2575 4822 126 13188 15nF 20% X7R 50V 3593 4822 051 20683 68k 5% 0.1W 3594 4822 051 20683 68k 5% 0.1W 3612 4822 117 12521 68 5% 0.1W
MODEL: AZ1602
SYMPTOM: The system goes in hang-up when switched to CD from TUNER or TAPE.
CURE: On the Front board, add a capacitor 1nF/50V (4822 122 33197) from pin 23 of 7401 to ground. REMARKS : Modification was implemented in production from week 9740 onwards.
MODEL: AZ1602
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ1602
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: On CD97 board, the service code of 2829 should read 4822 124 23178.
MODEL: AZ1602
SYMPTOM: Codenumber information
CURE: Codenumber information The FFC cable (15-pins) connecting CD light-pen to CD97 board is now available via following service codenumber: pos 18004822 320 12178FFC/15P/65mm
MODEL: AZ1602
SYMPTOM: Modification
CURE: Modification To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ2000
SYMPTOM: Sets are not working on some batteries (e.g. Energizer batteries
CURE: because the battery plate fails to contact with the batteries. The cabinet wall holding the battery plate is too thick. The simplest service solution is to add a washer (of 0.5 - 0.7mm thickness) behind the battery plate to compensate the tolerance. On long term, the battery plate will be modified to increase the height of the contact point. REMARKS : Modification has been implemented in production from week 9926 onwards.
MODEL: AZ2000
SYMPTOM: Pop noise is audible when cassette buttons are pressed.
CURE: Can be solved by making the following modification: Change 3302 from 4.7k to 5.6k (4822 116 52289) Change 3312 from 1k to 8.2k (4822 116 52303) Add Cap. 100uF/10V (4822 124 42446) connected from base of 7263 (+) to ground (-). REMARKS : Modification is implemented in production from week 9828 onwards.
MODEL: AZ2000
SYMPTOM: CD does not operated because IC 7801 (M65821) is defective
CURE: IC7801 is damaged by overheating because its location is too close to the heatsink of the Power IC. The problem can be solved by reducing the supply voltage of the CD module: Replace jumper 9526 by a resistor 3315, 4.7R (4822 050 4708) on Combi Board REMARKS : Modification has been implemented in production from week 9913 onwards.
MODEL: AZ2000
SYMPTOM: ribs for holding the Battery Spring (item 459) are broken.
CURE: On the rear cabinet, the ribs for holding the Battery Spring (item 459) are broken. In order to strengthen the ribs their wall thickness was increased and a radius was added. REMARKS : Modification has been implemented in production from week 9934
MODEL: AZ2000
SYMPTOM: parts on the Combi Board have been changed
CURE: following parts on the Combi Board have been changed to improve sound quality: Capacitors 2518 and 2519 changed to 10nF (4822 121 51387) Jumpers 9555 & 9556 replaced by resistors 3590 and 3591, 2.2k (4822 116 52256) Resistors 3559 and 3560, 10k (4822 050 21003) added across pins 1 to 6 and 3 to 5 of volume control 3522 Resistors 3595 and 3596 changed to 56k (4822 116 52291) REMARKS : Modification has been implemented in production from week 9910 onwards.
MODEL: AZ2000
SYMPTOM: to improve reliability, transistor 7260 has been changed
CURE: to improve reliability, transistor 7260 has been changed from BC327-40 to BC369 (5322 130 44593). Due to different transistor-pinning, the layout of the printed board had to be modified. Layout stage 3140 113 3139.2 uses BC327-40 Layout stage 3140 113 3139.3 uses BC369 REMARKS : Modification has been implemented in production from week 9921 onwards.
MODEL: AZ2000
SYMPTOM: Modification
CURE: Modification Resistor 3575 is replaced by a jumper. REMARKS : Implemented from production start onwards.
MODEL: AZ2000
SYMPTOM: Correction to mechanical partlist
CURE: Correction to mechanical partlist - 4822 442 01499 cabinet top (not for /17) 4822 442 01689 cabinet top (for /17 only)
MODEL: AZ2000
SYMPTOM: Correction to Electrical partslist
CURE: Correction to Electrical partslist : Item 2304 (22nF) on the combi board should be a polyester film capacitor.Service code is 4822 121 70619
MODEL: AZ2000
SYMPTOM: Correction to the Mechanical partslist
CURE: Correction to the Mechanical partslist (Exploded View diagram) The service code number of item 444 should read: 4822 442 01499Cabinet-Top(not for /17) 4822 442 01689Cabinet-Top(for /17 only)
MODEL: AZ2010
SYMPTOM: Sets are not working on some batteries (e.g. Energizer batteries
CURE: because the battery plate fails to contact with the batteries. The cabinet wall holding the battery plate is too thick. The simplest service solution is to add a washer (of 0.5 - 0.7mm thickness) behind the battery plate to compensate the tolerance. On long term, the battery plate will be modified to increase the height of the contact point. REMARKS : Modification has been implemented in production from week 9926 onwards.
MODEL: AZ2010
SYMPTOM: ribs for holding the Battery Spring (item 459) are broken.
CURE: On the rear cabinet, the ribs for holding the Battery Spring (item 459) are broken. In order to strengthen the ribs their wall thickness was increased and a radius was added. REMARKS : Modification has been implemented in production from week 9934
MODEL: AZ2100
SYMPTOM: Hum noise from mains-transformer is audiable.
CURE: Replace transformer (4822 146 10396).
MODEL: AZ2100
SYMPTOM: Right channel only a very weak signal.
CURE: Check capacitor C2260 1uF.
MODEL: AZ2100
SYMPTOM: The tuning pointer does not move.
CURE: The pole on the tuner bracket for holding the pulley is broken. Replace tuning bracket (4822 464 10291).
MODEL: AZ2100
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2100
SYMPTOM: Modification
CURE: Modification For sets with factory code KT02, which installs with new CD5 or CD6 CD modules, resistors 3847 and 3848 are changed from 22k to 33k (4822 116 52271) in order to solve the start up problem for 3 skew disc. REMARKS : Modification had been implemented in production from week 9742 onwards.
MODEL: AZ2100
SYMPTOM: Modification
CURE: Modification To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ2100
SYMPTOM: Modification
CURE: Modification In order to improve the accuracy of the regulated output voltage, following changes are introduced : Diode 6304 is changed to BZX79-F3V3 (4822 130 32806) Resistor 3253 is changed from 560 ohm to 470 ohm (4822 116 52224) REMARKS : Modification is implemented in production from week 9611 onwards.
MODEL: AZ2100
SYMPTOM: Modification
CURE: Modification This information is only valid for sets which are produced after July 1997, referring to following service informations: A97-576 (4822 725 25628) for AZ2100 A97-577 (4822 725 25629) for AZ2600 A97-578 (4822 725 25631) for AZ2605 A97-579 (4822 725 25632) for AZ2615 To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the CD5 or CD6 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ2100
SYMPTOM: Correction Service Manual, electrical partslist
CURE: Correction Service Manual, electrical partslist - For version /00 and /05, the service codeunmber of the Mains transformer should read 4822 146 10768.
MODEL: AZ2100
SYMPTOM: Modification
CURE: Modification From July 1997 onwards, with factory code starting from KT029 729..., new CDM and CD6 board are used. For servicing please refer to: Service Information A97-576 (4822 725 25628) for AZ2100 and Service Information A97-577 (4822 725 25629) for AZ2600.
MODEL: AZ2100
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ2305
SYMPTOM: Spare part information
CURE: Spare part information IC's PT2249A or TC9149A are pin compatible. Codenumber is 4822 209 61529 If the set still doesn't work after changing pos. 551, check pin 15 'osc' this has to be 38 khz +/- 5 khz.
MODEL: AZ2305
SYMPTOM: Adjustment
CURE: Adjustment In the radio alignment section, the position of trimmer capacitors C1, C2, C3 and C4 are not indicated on the layout diagrams in the service manual. Reference is made to Service Information A97-587 (4822 725 25645) for the additional information.
MODEL: AZ2402
SYMPTOM: The Power ON/OFF switch 1496 or resistor 3594 is burst
CURE: due to high transient current. Additional to Service Newsletter PA99.02.11, on long term the layout of the Front board will be modified and following parts will be changed or added: Resistor 3456 changed to 15k (4822 116 52244) Resistor 3457 changed to 5.6k (4822 116 52289) Resistor 3516, 47 (4822 116 52195) added Diode 7483 and 7484, 1N4148 (4822 130 30621) added REMARKS : Modification will be implemented in production from week 9932 onwards. This information will be followed by Service Information A99-573 (3140 785 22023).
MODEL: AZ2402
SYMPTOM: The Power ON/OFF switch 1496 is burst.
CURE: The transient current through the switch is too high. To reduce the transient current we suggest the following changes: Replace 3594 by a 10R fusible resistor (4822 052 11109) Change 2567 to 100F/25V (4822 124 40207) REMARKS : Modification has been implemented in production from week 9913 onwards.
MODEL: AZ2402
SYMPTOM: No FM reception at the higher end frequencies of the FM-band
CURE: when Volume is set to maximum and MODE button is pressed. Problem can be solved by changing following parts: Capacitor 2322 and 2326 changed to 22F (4822 124 81151) Resistor 3223 changed to 150R (4822 116 83868) REMARKS : Modification has been implemented in production from week 9923 onwards.
MODEL: AZ2402
SYMPTOM: Partslist
CURE: Partslist - The partslist of ECO5 Tuner board is missing; It is published in following Service Informations : A98-5624822 725 26185for AZ2407 A98-5634822 725 26186for AZ2402 Also add following service codenumber electrical partslist : IC 74004822 209 16661TMP87C22-AZ2402
MODEL: AZ2405
SYMPTOM: Preset radio memory is lost when mains is disconnected.
CURE: To extend the memory retaining time, change the zener ZD302 from 4.7V to 6.8V (4822 130 34278). REMARKS : It is advised to change ZD302 in every set, brought in for repair. Modification will be implemented in production from week 9730 onwards.
MODEL: AZ2405
SYMPTOM: Disc starts to turn but TOC can not be read in.
CURE: Check/replace IC101.
MODEL: AZ2405
SYMPTOM: The tape deck part does not rewind.
CURE: Check switch pos 20.
MODEL: AZ2405
SYMPTOM: Memory is lost when mains-supply is switched-off in stand-by position
CURE: This is according to the concept of the set.
MODEL: AZ2405
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - The service code of IC101 TA2065F should read 4822 209 15462. The Remote Transmitter Assy is now available with service code 4822 219 10196.
MODEL: AZ2405
SYMPTOM: Modification
CURE: Modification During production, LD202 and LD203 (to light volume controls) were changed from orange to green.Service code of green LED is 4822 130 10668.
MODEL: AZ2405
SYMPTOM: Correction Service Manual, Electrical partslist
CURE: Correction Service Manual, Electrical partslist - The service codenumber of IC101 TA2065F should read 4822 209 15462.
MODEL: AZ2407
SYMPTOM: The Power ON/OFF switch 1496 or resistor 3594 is burst
CURE: due to high transient current. Additional to Service Newsletter PA99.02.11, on long term the layout of the Front board will be modified and following parts will be changed or added: Resistor 3456 changed to 15k (4822 116 52244) Resistor 3457 changed to 5.6k (4822 116 52289) Resistor 3516, 47 (4822 116 52195) added Diode 7483 and 7484, 1N4148 (4822 130 30621) added REMARKS : Modification will be implemented in production from week 9932 onwards. This information will be followed by Service Information A99-573 (3140 785 22023).
MODEL: AZ2407
SYMPTOM: No FM reception at the higher end frequencies of the FM-band
CURE: when Volume is set to maximum and MODE button is pressed. Problem can be solved by changing following parts: Capacitor 2322 and 2326 changed to 22F (4822 124 81151) Resistor 3223 changed to 150R (4822 116 83868) REMARKS : Modification has been implemented in production from week 9923 onwards.
MODEL: AZ2407
SYMPTOM: Modification
CURE: Modification During production, resistor 3452 is changed from 220 ohm to 33 ohm (4822 116 52191) to improve remote control sensitivity at battery low condition.
MODEL: AZ2407
SYMPTOM: Partslist
CURE: Partslist - The partslist of ECO5 Tuner board is missing; It is published in following Service Informations : A98-5624822 725 26185for AZ2407 A98-5634822 725 26186for AZ2402 Also add following service codenumber electrical partslist : IC 74004822 209 16661TMP87C22-AZ2402
MODEL: AZ2407
SYMPTOM: Modification
CURE: Modification To improve sensitivity of the Remote Control at low battery conditions, change resistor 3452 from 220 ohm to 33 ohm.
MODEL: AZ2415
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ2415
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist The service codenumber of pos. 443, the Battery Spring should be 4822 492 11566.
MODEL: AZ2600
SYMPTOM: Hum noise from mains-transformer is audiable.
CURE: Replace transformer (4822 146 10396).
MODEL: AZ2600
SYMPTOM: The tuning pointer does not move.
CURE: The pole on the tuner bracket for holding the pulley is broken. Replace tuning bracket (4822 464 10291).
MODEL: AZ2600
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ2600
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification For sets with factory code KT02, which installs with new CD5 or CD6 CD modules, resistors 3847 and 3848 are changed from 22k to 33k (4822 116 52271) in order to solve the start up problem for 3 skew disc. REMARKS : Modification had been implemented in production from week 9742 onwards.
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification This information is only valid for sets which are produced after July 1997, referring to following service informations: A97-576 (4822 725 25628) for AZ2100 A97-577 (4822 725 25629) for AZ2600 A97-578 (4822 725 25631) for AZ2605 A97-579 (4822 725 25632) for AZ2615 To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the CD5 or CD6 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification In order to improve the accuracy of the regulated output voltage, following changes are introduced : Diode 6304 is changed to BZX79-F3V3 (4822 130 32806) Resistor 3253 is changed from 560 ohm to 470 ohm (4822 116 52224) REMARKS : Modification is implemented in production from week 9611 onwards.
MODEL: AZ2600
SYMPTOM: Service Manual, Tape Board, Electrical partslist
CURE: Service Manual, Tape Board, Electrical partslist 2721 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2722 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27214822 121 43144Cap. Poly 22nF 10% 27224822 126 11714Cer Tub. 50V 4.7nF 20% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ2600
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Following modifications have been implemented since production start. - Cap. 2711 and 2712 have been changed from 220uF to 47uF (4822 124 41397) to improve low frequency over-load. - Cap. 2724 has been changed from 470pF to 680pF (5322 122 32052) for controlling bias frequency to 73 kHz plus/minus 1 kHz. - Resistor 3708 has been changed from 82 kOhm to 68 kOhm (4822 116 52297) to improve Rec/Play distortion.
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification The motor of the cassette mechanism is changed from EG-530AD-9B to EG-530YD-9BH (4822 361 21592) in order to improve starting torque. Following components have been added on the cassette board to match the change of motor. 27034822 124 41397Cap. 47uF/25V 37034822 116 52176Resistor 10 ohm 37054822 116 83863Resistor 1k ohm 37584822 100 20165Potm. trim 500 ohm Tape speed adjustment: Adjust 3758 instead of the potmeter inside the motor. REMARKS : Changes are implemented in production since production start.
MODEL: AZ2600
SYMPTOM: Modification
CURE: Modification From July 1997 onwards, with factory code starting from KT029 729..., new CDM and CD6 board are used. For servicing please refer to: Service Information A97-576 (4822 725 25628) for AZ2100 and Service Information A97-577 (4822 725 25629) for AZ2600.
MODEL: AZ2605
SYMPTOM: Hum noise from mains-transformer is audiable.
CURE: Replace transformer (4822 146 10396).
MODEL: AZ2605
SYMPTOM: The tuning pointer does not move.
CURE: The pole on the tuner bracket for holding the pulley is broken. Replace tuning bracket (4822 464 10291).
MODEL: AZ2605
SYMPTOM: Modification
CURE: Modification This information is only valid for sets which are produced after July 1997, referring to following service informations: A97-576 (4822 725 25628) for AZ2100 A97-577 (4822 725 25629) for AZ2600 A97-578 (4822 725 25631) for AZ2605 A97-579 (4822 725 25632) for AZ2615 To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the CD5 or CD6 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ2605
SYMPTOM: Service Manual, Tape Board, Electrical partslist
CURE: Service Manual, Tape Board, Electrical partslist 2721 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2722 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27214822 121 43144Cap. Poly 22nF 10% 27224822 126 11714Cer Tub. 50V 4.7nF 20% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ2605
SYMPTOM: Modification
CURE: Modification For sets with factory code KT02, which installs with new CD5 or CD6 CD modules, resistors 3847 and 3848 are changed from 22k to 33k (4822 116 52271) in order to solve the start up problem for 3 skew disc. REMARKS : Modification had been implemented in production from week 9742 onwards.
MODEL: AZ2605
SYMPTOM: Modification
CURE: Modification To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10654.To match with this modification, following components on the CD97 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5227133k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards.
MODEL: AZ2605
SYMPTOM: Modification
CURE: Modification Item 7812, the remote control sensor TFMS5360 (4822 212 30842) is replaced by TSOP1736 (4822 218 11745). REMARKS : Change had been implemented in production from week 9740 onwards. No other components need to be changed when replacing 7812 by a new one.
MODEL: AZ2605
SYMPTOM: Codenumber information
CURE: Codenumber information Pos. 7812 TSOP1736 new remote control sensor is 4822 218 11745
MODEL: AZ2605
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2615
SYMPTOM: Service Manual, Tape Board, Electrical partslist
CURE: Service Manual, Tape Board, Electrical partslist 2721 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2722 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27214822 121 43144Cap. Poly 22nF 10% 27224822 126 11714Cer Tub. 50V 4.7nF 20% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ2615
SYMPTOM: Modification
CURE: Modification This information is only valid for sets which are produced after July 1997, referring to following service informations: A97-576 (4822 725 25628) for AZ2100 A97-577 (4822 725 25629) for AZ2600 A97-578 (4822 725 25631) for AZ2605 A97-579 (4822 725 25632) for AZ2615 To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the CD5 or CD6 board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ2615
SYMPTOM: Modification
CURE: Modification Item 7812, the remote control sensor TFMS5360 (4822 212 30842) is replaced by TSOP1736 (4822 218 11745). REMARKS : Change had been implemented in production from week 9740 onwards. No other components need to be changed when replacing 7812 by a new one.
MODEL: AZ2615
SYMPTOM: Modification
CURE: Modification For sets with factory code KT02, which installs with new CD5 or CD6 CD modules, resistors 3847 and 3848 are changed from 22k to 33k (4822 116 52271) in order to solve the start up problem for 3 skew disc. REMARKS : Modification had been implemented in production from week 9742 onwards.
MODEL: AZ2615
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2700
SYMPTOM: Modification
CURE: Modification Two metal brackets are added to protect the hinges. Reason: strong pressure on edges can loosen the cassette door. For detail please see Service newsletter PA98.05. REMARKS : Modification is implemented in production from week 9836 onwards.
MODEL: AZ2710
SYMPTOM: Modification
CURE: Modification Two metal brackets are added to protect the hinges. Reason: strong pressure on edges can loosen the cassette door. For detail please see Service newsletter PA98.05. REMARKS : Modification is implemented in production from week 9836 onwards.
MODEL: AZ2725
SYMPTOM: Modification
CURE: Modification Two metal brackets are added to protect the hinges. Reason: strong pressure on edges can loosen the cassette door. For detail please see Service newsletter PA98.05. REMARKS : Modification is implemented in production from week 9836 onwards.
MODEL: AZ2750
SYMPTOM: Abnormal noise is audible in TAPE mode.
CURE: The signal paths on the Recorder board are too close. Solution is to cut 2 copper tracks on the printed board and to connect resistor 3729 and capacitor 2736 with a wire (for details see diagram below). REMARKS : Modification has been implemented in production from week 9922 onwards. This information will be followed by Service Information A99-577 (3140 785 22030).
MODEL: AZ2750
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist The codenumber for the Motor Pulley (item 116 on tape deck assy) should read 4822 528 81493.
MODEL: AZ2750
SYMPTOM: the source selection IC TC9145 (pos. U1) has been replaced
CURE: IC TC9145 (pos. U1) has been replaced by the new type PT233 (9655 000 01767). REMARKS : The new IC is used in production from week 9938 onwards with factory change code KZ02.
MODEL: AZ2750
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-554 (3140 785 22340). REMARKS : Alternative CD modules are used in production from week 0014 onwards.
MODEL: AZ2750
SYMPTOM: codenumber of the CD Door Switch
CURE: The switch is available with codenumber 4822 276 13963
MODEL: AZ2755
SYMPTOM: Abnormal noise is audible in TAPE mode.
CURE: The signal paths on the Recorder board are too close. Solution is to cut 2 copper tracks on the printed board and to connect resistor 3729 and capacitor 2736 with a wire (for details see diagram below). REMARKS : Modification has been implemented in production from week 9922 onwards. This information will be followed by Service Information A99-577 (3140 785 22030).
MODEL: AZ2755
SYMPTOM: Correction to the Service Manual
CURE: Mechanical Partslist The codenumber for the Motor Pulley (item 116 on tape deck assy) should read 4822 528 81493.
MODEL: AZ2755
SYMPTOM: supply shortfall of servo IC TDA7073A
CURE: Due to supply shortfall of servo IC TDA7073A, the CD module had to be redesigned for IC TCA0372DP1. The new modules are used in production alternatively. For repair information on new CD modules see Service Information A00-554 (3140 785 22340). REMARKS : Alternative CD modules are used in production from week 0014 onwards.
MODEL: AZ2755
SYMPTOM: codenumber of the CD Door Switch
CURE: The switch is available with codenumber 4822 276 13963
MODEL: AZ2804
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ2804
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ2804
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2805
SYMPTOM: The CD part is totally inoperative.
CURE: Check/replace D6250.
MODEL: AZ2805
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ2805
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ2805
SYMPTOM: The CD drawer does not open or close.
CURE: The ECO Short Loader is out of position at the rear fixing slot. This fault might be caused when the set has been dropped. Short term and service solution : Add brackets to the rib at both sides of the ECO Short Loader Chassis (item 206). The parts are available via following service codes : 4822 402 10641Bracket 4822 502 11473Screw M3x8 4822 505 10758Nut M3 Mount the bracket with screw and nut. Long term solution : Ribs will be added on the rear cabinet to strengthen the bracket for holding the ECO Short Loader. REMARKS : It is advised to add the brackets in every set, brought in for repair, with production stamp before week 9642. New Rear Cabinet will be implemented in production from week 9645 onwards.
MODEL: AZ2805
SYMPTOM: Drawer opens spontanuously
CURE: Toothed wheels pos.202 and 204 out of position. Remount wheels pos.202 and 204.
MODEL: AZ2805
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2805
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2721 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2722 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27214822 121 43144Cap. Poly 22nF 10% 27224822 126 11714Cer Tub. 50V 4.7nF 20% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ2805
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ2805
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ2805
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ2808
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ2808
SYMPTOM: The Gear Wheels (pos. 202 and 204) are out of position.
CURE: It is recommended to replace the 2 gear wheels and the drawer (pos 216).
MODEL: AZ2808
SYMPTOM: The CD drawer does not open or close.
CURE: The ECO Short Loader is out of position at the rear fixing slot. This fault might be caused when the set has been dropped. Short term and service solution : Add brackets to the rib at both sides of the ECO Short Loader Chassis (item 206). The parts are available via following service codes : 4822 402 10641Bracket 4822 502 11473Screw M3x8 4822 505 10758Nut M3 Mount the bracket with screw and nut. Long term solution : Ribs will be added on the rear cabinet to strengthen the bracket for holding the ECO Short Loader. REMARKS : It is advised to add the brackets in every set, brought in for repair, with production stamp before week 9642. New Rear Cabinet will be implemented in production from week 9645 onwards.
MODEL: AZ2808
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ2808
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ2808
SYMPTOM: Service Manual, Recorder Module, Electrical partsl
CURE: Service Manual, Recorder Module, Electrical partslist - 2721 is changed from Tubular type to Mylar capacitor to improve high temperature characteristic of bias modulation. 2722 is changed from 3.3nF to 4.7nF to increase the bias oscillation level. itemservice codedesrciption - 27214822 121 43144Cap. Poly 22nF 10% 27224822 126 11714Cer Tub. 50V 4.7nF 20% REMARKS : Modifications are implemented in production from week 9638 onwards.
MODEL: AZ2808
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ2808
SYMPTOM: Modification
CURE: Modification From October 1997 onwards, the CDM (item 1800) of the CD Short Loader was changed from CDM12.1 to VAM1201 (4822 691 10615). When the CDM12.1 is replaced by VAM1201, the Clamper Assy (item 212) has to be changed to 4822 401 11709. REMARKS : The production code of the ECO Short Loader with VAM1201 is KT02.
MODEL: AZ3705
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: AZ3705
SYMPTOM: Modification
CURE: Modification During production the spring pos. 70 has been modified from 16mm length to 14mm to match a similar change in the bracket pos. 2. This makes matching between the bracket and spring necessary during repair.For this reason a new service 12NC for pos 70 is created for the new spring.Below shows both spring (pos. 70) and their ordering 12NCs. Service codesDescription ============== =========== 4822 492 42713 Spring 16mm 4822 492 11413 Spring 14mm
MODEL: AZ3705
SYMPTOM: Service Manual error
CURE: Service Manual error Add to electrical parts list: Add capacitor 2869 22uF 20% 50V (4822 124 41596) which is accidently left out of the CDC-7 Module parts list. For AZ3708/01: Item 215 front cabinet should be 4822 459 04261 instead of 4822 459 04125. Item 216 window display should be 4822 381 11763 instead of 4822 381 11719. For AZ3705 and AZ3708 Item 280 door battery should be 4822 443 10397 instead of 4822 423 41277.
MODEL: AZ3705
SYMPTOM: Spare part information
CURE: Spare part information Pos 48 for the CDC mechanism is now available as service spare part. The 12NC is 4822 401 11681Chassis clamper.
MODEL: AZ3705
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: AZ3708
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: AZ3708
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.
MODEL: AZ3708
SYMPTOM: Spare part information
CURE: Spare part information Pos 48 for the CDC mechanism is now available as service spare part. The 12NC is 4822 401 11681Chassis clamper.
MODEL: AZ3708
SYMPTOM: Modification
CURE: Modification During production the spring pos. 70 has been modified from 16mm length to 14mm to match a similar change in the bracket pos. 2. This makes matching between the bracket and spring necessary during repair.For this reason a new service 12NC for pos 70 is created for the new spring.Below shows both spring (pos. 70) and their ordering 12NCs. Service codesDescription ============== =========== 4822 492 42713 Spring 16mm 4822 492 11413 Spring 14mm
MODEL: AZ3708
SYMPTOM: Service Manual error
CURE: Service Manual error Add to electrical parts list: Add capacitor 2869 22uF 20% 50V (4822 124 41596) which is accidently left out of the CDC-7 Module parts list. For AZ3708/01: Item 215 front cabinet should be 4822 459 04261 instead of 4822 459 04125. Item 216 window display should be 4822 381 11763 instead of 4822 381 11719. For AZ3705 and AZ3708 Item 280 door battery should be 4822 443 10397 instead of 4822 423 41277.
MODEL: AZ3708/01
SYMPTOM: Change on Tuning grid frequency
CURE: Change on Tuning grid frequency - The procedure on changing the Tuning grid frequency published on page 2-4 has been changed.The new procedure is as follows: 1. Switch on the unit 2. Press and hold the BAND button for 5 seconds, the display will shows Grid 9 or Grid 10 depending on the last grid setting.
MODEL: AZ3805
SYMPTOM: Service Manual, MTF Module, Electrical Partslist
CURE: Service Manual, MTF Module, Electrical Partslist The recording bias oscillation level is too low. Change the capacitor 2732 from 3.3nF to 4.7nF (4822 126 11714). REMARKS : Modification is implemented in production from week 9638 onwards.
MODEL: AZ3808
SYMPTOM: Service Manual, MTF Module, Electrical Partslist
CURE: Service Manual, MTF Module, Electrical Partslist The recording bias oscillation level is too low. Change the capacitor 2732 from 3.3nF to 4.7nF (4822 126 11714). REMARKS : Modification is implemented in production from week 9638 onwards.
MODEL: AZ6800
SYMPTOM: Service hint
CURE: Service hint In case of oscillating of the focus a new disc-hold-down 4822 532 52334 can be placed.
MODEL: AZ6801
SYMPTOM: Service hint
CURE: Service hint In case of oscillating of the focus a new disc-hold-down 4822 532 52334 can be placed.
MODEL: AZ6808
SYMPTOM: Electrical partslist
CURE: Electrical partslist The uP TMP47C820AF-N817 (item 7900) is available under service codenumber 4822 209 31281.
MODEL: AZ6813
SYMPTOM: SBC6411 (4822 138 10418) cannot be recharged to nominal voltage.
CURE: This fault is caused by the poor characteristic of this type of battery. It can be solved by replacing this rechargeable SLA battery into 4 NiCd rechargeable batteries. These NiCd batteries have to be inserted into the battery holder (4822 256 60323) delivered with the set. These batteries can (for safety reasons) not be charged in this battery holder of the set. That is why a separate battery charger PNC310 is made available. Complete set of PNC310 battery charger with 4x NiCd-R6/AA/UM3 batteries included: for /00 version (220V & Euro-connector) : 4822 218 10551 for /05 version (240V & UK-connector) : 4822 218 10552 for /17 version (USA) this PNC310-set is under investigation for /01 (multi voltage) this PNC310-set is under investigation Separate 2x NiCd-R6/AA/UM3 batteries are available under: 4822 138 10073. REMARKS : This publication will be followed by a service information A94-562, A94-563, A94-564, A94-565 From June 1994 onwards this modification will be implemented in the produced sets. From that moment onwards the battery charger PNC310 and the NiCd-R6/AA/UM3 rechargeable batteries will be added to the set.
MODEL: AZ6813
SYMPTOM: PNC310 battery charger
CURE: PNC310 battery charger We announced further investigations to check the availability of PNC310 battery charger, for stroke versions /01 and /17. Now we have to inform you that we did not succeed within the Philips branded range to find battery chargers to be suited for AZ6813/01/17, AZ6814/01/17, AZ6815/01/07, AZ6823/01/17, AZ6825/01/17. However this is a common article in the market and an equivalent battery charger is expected to be available within the regular photo and brown/white good channels. PNC310 for /00 (4822 218 10551) and /05 (4822 218 10552) still remains available. REMARKS : This publication will not be followed by a service information.
MODEL: AZ6814
SYMPTOM: SBC6411 (4822 138 10418) cannot be recharged to nominal voltage.
CURE: This fault is caused by the poor characteristic of this type of battery. It can be solved by replacing this rechargeable SLA battery into 4 NiCd rechargeable batteries. These NiCd batteries have to be inserted into the battery holder (4822 256 60323) delivered with the set. These batteries can (for safety reasons) not be charged in this battery holder of the set. That is why a separate battery charger PNC310 is made available. Complete set of PNC310 battery charger with 4x NiCd-R6/AA/UM3 batteries included: for /00 version (220V & Euro-connector) : 4822 218 10551 for /05 version (240V & UK-connector) : 4822 218 10552 for /17 version (USA) this PNC310-set is under investigation for /01 (multi voltage) this PNC310-set is under investigation Separate 2x NiCd-R6/AA/UM3 batteries are available under: 4822 138 10073. REMARKS : This publication will be followed by a service information A94-562, A94-563, A94-564, A94-565 From June 1994 onwards this modification will be implemented in the produced sets. From that moment onwards the battery charger PNC310 and the NiCd-R6/AA/UM3 rechargeable batteries will be added to the set.
MODEL: AZ6814
SYMPTOM: PNC310 battery charger
CURE: PNC310 battery charger We announced further investigations to check the availability of PNC310 battery charger, for stroke versions /01 and /17. Now we have to inform you that we did not succeed within the Philips branded range to find battery chargers to be suited for AZ6813/01/17, AZ6814/01/17, AZ6815/01/07, AZ6823/01/17, AZ6825/01/17. However this is a common article in the market and an equivalent battery charger is expected to be available within the regular photo and brown/white good channels. PNC310 for /00 (4822 218 10551) and /05 (4822 218 10552) still remains available. REMARKS : This publication will not be followed by a service information.
MODEL: AZ6815
SYMPTOM: Totally inoperative.
CURE: Check if pin 19 of IC 7902 is low, this pin is the power on command pin from the CPU. Check series diode 6910 (BAV 99) for open circuit.
MODEL: AZ6815
SYMPTOM: SBC6411 (4822 138 10418) cannot be recharged to nominal voltage.
CURE: This fault is caused by the poor characteristic of this type of battery. It can be solved by replacing this rechargeable SLA battery into 4 NiCd rechargeable batteries. These NiCd batteries have to be inserted into the battery holder (4822 256 60323) delivered with the set. These batteries can (for safety reasons) not be charged in this battery holder of the set. That is why a separate battery charger PNC310 is made available. Complete set of PNC310 battery charger with 4x NiCd-R6/AA/UM3 batteries included: for /00 version (220V & Euro-connector) : 4822 218 10551 for /05 version (240V & UK-connector) : 4822 218 10552 for /17 version (USA) this PNC310-set is under investigation for /01 (multi voltage) this PNC310-set is under investigation Separate 2x NiCd-R6/AA/UM3 batteries are available under: 4822 138 10073. REMARKS : This publication will be followed by a service information A94-562, A94-563, A94-564, A94-565 From June 1994 onwards this modification will be implemented in the produced sets. From that moment onwards the battery charger PNC310 and the NiCd-R6/AA/UM3 rechargeable batteries will be added to the set.
MODEL: AZ6815
SYMPTOM: Diode 6910 (BAV99) often damaged.
CURE: 1. Change capacitor 2912 from 1F to 100nF(4822 122 33496). 2. Change capacitor 2914 from 100nF to 22nF (5322 122 32654). REMARKS : Production will be corrected from week 9410.
MODEL: AZ6815
SYMPTOM: Updating of mechanical partslist
CURE: Updating of mechanical partslist Due to many requests the following items are available as normal service spare parts: 5014822 526 20209magnet assembly 5034822 492 42702torsion spring (cd lid) assembly 5044822 532 61224clamping ring for magnet 5064822 410 63072button (open) 5084822 492 52388compression spring (open) 5094822 464 70635subframe 5134822 325 60393rubber sleeve 5164822 410 63071button (shuffle) 5194822 417 11213hinge assembly 5214822 532 52572bearing (hinge 2) 5224822 410 62426set of buttons prev/next 5234822 411 61961knob of slider hold 5244822 464 70636battery frame 5264822 410 62237set of buttons play/stop 5274822 411 61959knob of slider (resume) 5284822 403 30812lever (open) 5294822 411 61962knob of slider (msc)
MODEL: AZ6815
SYMPTOM: PNC310 battery charger
CURE: PNC310 battery charger We announced further investigations to check the availability of PNC310 battery charger, for stroke versions /01 and /17. Now we have to inform you that we did not succeed within the Philips branded range to find battery chargers to be suited for AZ6813/01/17, AZ6814/01/17, AZ6815/01/07, AZ6823/01/17, AZ6825/01/17. However this is a common article in the market and an equivalent battery charger is expected to be available within the regular photo and brown/white good channels. PNC310 for /00 (4822 218 10551) and /05 (4822 218 10552) still remains available. REMARKS : This publication will not be followed by a service information.
MODEL: AZ6819
SYMPTOM: Intermittent play
CURE: Intermittent play when + or - pressed, (any pressure on lid causes the problem). This fault was found to be caused by the door switch.
MODEL: AZ6819
SYMPTOM: Codenumber information
CURE: Codenumber information SBC3397 is Cordless headphone of AZ6819 Electrical partslist SBC3397 The volume potmeter 2x50k A (pos. 3206/3207) is available under service codenumber 4822 102 10467.
MODEL: AZ6820
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6820
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-563.
MODEL: AZ6820
SYMPTOM: Modification
CURE: Modification Compact Disc drive: In sets marked with stamp KT02 9438 another CD mechanism has been mounted. The disc drive has been changed from CDM12.3 into CDM12.3B, service code reads 4822 691 30335. For discdrive CDM12.3 (= turntable with magnet clamper), the mechanical clamper parts items are 409A, 409B and 411. In case this CDM12.3 is replaced by CDM12.3B (= turntable with Ballclamper), the magnet clamper parts are not assembled. REMARKS : Introduction from week 9438 onwards. The only difference between CDM12.3 and CDM12.3B is a modified turntable. While the old drive fixes the CD with the well-known magnet-disc hold down assembly the new CDM12.3B uses a special ball clamp mechanism. As the new turntable influences the regulation characteristic of the servo loop some parameters of the digital servo IC TDA1301 require a different setting. The parameters are stored in the uP of the set and sent to the TDA1301 during the start-up procedure. Proper function of the new CDM12.3B is only guaranteed together with the new software stage of the uP TMP47C820F-AZ6821.2.version 90 displayed in service test program. (service code reads 4822 209 33691) In case the disc drive has to be exchanged in sets equipped with the OTP version TMP47P820F or version TMP47C820F-N904 of the uP with service code 4822 209 32239 (production week 9415 or earlier version 92 is displayed in service test program), only the old discdrive CDM12.3 can be used. For that reason discdrive CDM12.3, with service code 4822 691 20834, will be kept on stock.
MODEL: AZ6820
SYMPTOM: Modification
CURE: Modification Copper pattern Layout Stage .7 has been introduced. On this printed board connector item 1851 has been exchanged by another type with different pin layout. REMARKS : Introduced in production from week 9424 onwards. For detailed information and drawing see Service Info A94-356.
MODEL: AZ6820
SYMPTOM: Changes in course of production
CURE: Changes in course of production: - Different CD damper / springs items 419 respectively 421 are used during production. In case of a repair these parts may only be exchanged by the same execution as originally built in the set. REMARKS : For detailed info and drawing see Service Information A94-356.
MODEL: AZ6820
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6820
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6821
SYMPTOM: Totally inoperative.
CURE: Check IC7900 (4822 209 32241) and/or T7951 (4822 130 42615)
MODEL: AZ6821
SYMPTOM: Bad sound quality or no sound from the CD player.
CURE: Check the mass contact of the headphone socket.
MODEL: AZ6821
SYMPTOM: Crackling sound from Line Out.
CURE: Check the Line Output socket 1342.
MODEL: AZ6821
SYMPTOM: CD produces crackling sound because of bad track following.
CURE: Check IC7850 (TDA1301T/N1; 4822 209 31064).
MODEL: AZ6821
SYMPTOM: CD skips tracks and stops after a few minutes.
CURE: Check the CDM (4822 691 20834).
MODEL: AZ6821
SYMPTOM: Does not accept any disc.
CURE: The focus coil does not move. Replace CDM (4822 691 20834).
MODEL: AZ6821
SYMPTOM: Player is totally inoperative.
CURE: The voltage converter IC is defect, this causes a defective uP
MODEL: AZ6821
SYMPTOM: Sometimes strange characters on display.
CURE: Check processor IC7400 (4822 209 32239).
MODEL: AZ6821
SYMPTOM: Gives NO DISC indication. Does not find focus.
CURE: Check CDM (4822 691 20834).
MODEL: AZ6821
SYMPTOM: Does not read in CD. Sledge gets stuck sometimes.
CURE: Check whether the flatcable in RCD is mounted correctly.
MODEL: AZ6821
SYMPTOM: Modification
CURE: Modification Copper pattern Layout Stage .7 has been introduced. On this printed board connector item 1851 has been exchanged by another type with different pin layout. REMARKS : Introduced in production from week 9424 onwards. For detailed information and drawing see Service Info A94-356.
MODEL: AZ6821
SYMPTOM: Changes in course of production
CURE: Changes in course of production: - Different CD damper / springs items 419 respectively 421 are used during production. In case of a repair these parts may only be exchanged by the same execution as originally built in the set. REMARKS : For detailed info and drawing see Service Information A94-356.
MODEL: AZ6821
SYMPTOM: Modification
CURE: Modification Compact Disc drive: In sets marked with stamp KT02 9438 another CD mechanism has been mounted. The disc drive has been changed from CDM12.3 into CDM12.3B, service code reads 4822 691 30335. For discdrive CDM12.3 (= turntable with magnet clamper), the mechanical clamper parts items are 409A, 409B and 411. In case this CDM12.3 is replaced by CDM12.3B (= turntable with Ballclamper), the magnet clamper parts are not assembled. REMARKS : Introduction from week 9438 onwards. The only difference between CDM12.3 and CDM12.3B is a modified turntable. While the old drive fixes the CD with the well-known magnet-disc hold down assembly the new CDM12.3B uses a special ball clamp mechanism. As the new turntable influences the regulation characteristic of the servo loop some parameters of the digital servo IC TDA1301 require a different setting. The parameters are stored in the uP of the set and sent to the TDA1301 during the start-up procedure. Proper function of the new CDM12.3B is only guaranteed together with the new software stage of the uP TMP47C820F-AZ6821.2.version 90 displayed in service test program. (service code reads 4822 209 33691) In case the disc drive has to be exchanged in sets equipped with the OTP version TMP47P820F or version TMP47C820F-N904 of the uP with service code 4822 209 32239 (production week 9415 or earlier version 92 is displayed in service test program), only the old discdrive CDM12.3 can be used. For that reason discdrive CDM12.3, with service code 4822 691 20834, will be kept on stock.
MODEL: AZ6821
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6821
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6821
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-563.
MODEL: AZ6821
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6822
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6822
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6822
SYMPTOM: Changes in course of production:
CURE: Changes in course of production: - Different CD damper / springs items 419 respectively 421 are used during production. In case of a repair these parts may only be exchanged by the same execution as originally built in the set. REMARKS : For detailed info and drawing see Service Information A94-356.
MODEL: AZ6822
SYMPTOM: Modification
CURE: Modification Copper pattern Layout Stage .7 has been introduced. On this printed board connector item 1851 has been exchanged by another type with different pin layout. REMARKS : Introduced in production from week 9424 onwards. For detailed information and drawing see Service Info A94-356.
MODEL: AZ6822
SYMPTOM: Modification
CURE: Modification Compact Disc drive: In sets marked with stamp KT02 9438 another CD mechanism has been mounted. The disc drive has been changed from CDM12.3 into CDM12.3B, service code reads 4822 691 30335. For discdrive CDM12.3 (= turntable with magnet clamper), the mechanical clamper parts items are 409A, 409B and 411. In case this CDM12.3 is replaced by CDM12.3B (= turntable with Ballclamper), the magnet clamper parts are not assembled. REMARKS : Introduction from week 9438 onwards. The only difference between CDM12.3 and CDM12.3B is a modified turntable. While the old drive fixes the CD with the well-known magnet-disc hold down assembly the new CDM12.3B uses a special ball clamp mechanism. As the new turntable influences the regulation characteristic of the servo loop some parameters of the digital servo IC TDA1301 require a different setting. The parameters are stored in the uP of the set and sent to the TDA1301 during the start-up procedure. Proper function of the new CDM12.3B is only guaranteed together with the new software stage of the uP TMP47C820F-AZ6821.2.version 90 displayed in service test program. (service code reads 4822 209 33691) In case the disc drive has to be exchanged in sets equipped with the OTP version TMP47P820F or version TMP47C820F-N904 of the uP with service code 4822 209 32239 (production week 9415 or earlier version 92 is displayed in service test program), only the old discdrive CDM12.3 can be used. For that reason discdrive CDM12.3, with service code 4822 691 20834, will be kept on stock.
MODEL: AZ6822
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-563.
MODEL: AZ6822
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6823
SYMPTOM: Set inoperative on battery supply.
CURE: Check whether the battery springs are bent. Replace the springs (4822 492 71333).
MODEL: AZ6823
SYMPTOM: SBC6411 (4822 138 10418) cannot be recharged to nominal voltage.
CURE: This fault is caused by the poor characteristic of this type of battery. It can be solved by replacing this rechargeable SLA battery into 4 NiCd rechargeable batteries. These NiCd batteries have to be inserted into the battery holder (4822 256 60323) delivered with the set. These batteries can (for safety reasons) not be charged in this battery holder of the set. That is why a separate battery charger PNC310 is made available. Complete set of PNC310 battery charger with 4x NiCd-R6/AA/UM3 batteries included: for /00 version (220V & Euro-connector) : 4822 218 10551 for /05 version (240V & UK-connector) : 4822 218 10552 for /17 version (USA) this PNC310-set is under investigation for /01 (multi voltage) this PNC310-set is under investigation Separate 2x NiCd-R6/AA/UM3 batteries are available under: 4822 138 10073. REMARKS : This publication will be followed by a service information A94-562, A94-563, A94-564, A94-565 From June 1994 onwards this modification will be implemented in the produced sets. From that moment onwards the battery charger PNC310 and the NiCd-R6/AA/UM3 rechargeable batteries will be added to the set.
MODEL: AZ6823
SYMPTOM: Does not read in well. Player gives NO DISC.
CURE: Check whether the focus coil is moving. If not: replace CDM. (4822 691 20834).
MODEL: AZ6823
SYMPTOM: Inoperative on NiCd accu supply. On battery supply set OK.
CURE: Check ext. DC socket pos.1250 (4822 267 31354).
MODEL: AZ6823
SYMPTOM: The CD sledge does not move.
CURE: Check the toothed braket of the CDM. Replace CDM (4822 691 20834).
MODEL: AZ6823
SYMPTOM: Strange echo sound from headphone.
CURE: Check mass connection of headphone socket CN1341 (4822 267 31638).
MODEL: AZ6823
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6823
SYMPTOM: Changes in course of production
CURE: Changes in course of production: - Different CD damper / springs items 419 respectively 421 are used during production. In case of a repair these parts may only be exchanged by the same execution as originally built in the set. REMARKS : For detailed info and drawing see Service Information A94-356.
MODEL: AZ6823
SYMPTOM: Modification
CURE: Modification Copper pattern Layout Stage .7 has been introduced. On this printed board connector item 1851 has been exchanged by another type with different pin layout. REMARKS : Introduced in production from week 9424 onwards. For detailed information and drawing see Service Info A94-356.
MODEL: AZ6823
SYMPTOM: Modification
CURE: Modification Copper pattern Layout Stage .7 has been introduced. On this printed board connector item 1851 has been exchanged by another type with different pin layout. REMARKS : Introduced in production from week 9424 onwards. For detailed information and drawing see Service Info A94-356.
MODEL: AZ6823
SYMPTOM: Modification
CURE: Modification Compact Disc drive: In sets marked with stamp KT02 9438 another CD mechanism has been mounted. The disc drive has been changed from CDM12.3 into CDM12.3B, service code reads 4822 691 30335. For discdrive CDM12.3 (= turntable with magnet clamper), the mechanical clamper parts items are 409A, 409B and 411. In case this CDM12.3 is replaced by CDM12.3B (= turntable with Ballclamper), the magnet clamper parts are not assembled. REMARKS : Introduction from week 9438 onwards. The only difference between CDM12.3 and CDM12.3B is a modified turntable. While the old drive fixes the CD with the well-known magnet-disc hold down assembly the new CDM12.3B uses a special ball clamp mechanism. As the new turntable influences the regulation characteristic of the servo loop some parameters of the digital servo IC TDA1301 require a different setting. The parameters are stored in the uP of the set and sent to the TDA1301 during the start-up procedure. Proper function of the new CDM12.3B is only guaranteed together with the new software stage of the uP TMP47C820F-AZ6821.2.version 90 displayed in service test program. (service code reads 4822 209 33691) In case the disc drive has to be exchanged in sets equipped with the OTP version TMP47P820F or version TMP47C820F-N904 of the uP with service code 4822 209 32239 (production week 9415 or earlier version 92 is displayed in service test program), only the old discdrive CDM12.3 can be used. For that reason discdrive CDM12.3, with service code 4822 691 20834, will be kept on stock.
MODEL: AZ6823
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6823
SYMPTOM: Changes in course of production
CURE: Changes in course of production: - Different CD damper / springs items 419 respectively 421 are used during production. In case of a repair these parts may only be exchanged by the same execution as originally built in the set. REMARKS : For detailed info and drawing see Service Information A94-356.
MODEL: AZ6823
SYMPTOM: Replacement
CURE: Replacement - From production week 9324 onwards headphone SBC3322 has been replaced by SBC3323V with volume control. Service code for SBC3323V is 4822 015 20623. REMARKS : This publication will be followed by service information A94-356.
MODEL: AZ6823
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6823
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-563.
MODEL: AZ6823
SYMPTOM: PNC310 battery charger
CURE: PNC310 battery charger We announced further investigations to check the availability of PNC310 battery charger, for stroke versions /01 and /17. Now we have to inform you that we did not succeed within the Philips branded range to find battery chargers to be suited for AZ6813/01/17, AZ6814/01/17, AZ6815/01/07, AZ6823/01/17, AZ6825/01/17. However this is a common article in the market and an equivalent battery charger is expected to be available within the regular photo and brown/white good channels. PNC310 for /00 (4822 218 10551) and /05 (4822 218 10552) still remains available. REMARKS : This publication will not be followed by a service information.
MODEL: AZ6823
SYMPTOM: Modification
CURE: Modification Compact Disc drive: In sets marked with stamp KT02 9438 another CD mechanism has been mounted. The disc drive has been changed from CDM12.3 into CDM12.3B, service code reads 4822 691 30335. For discdrive CDM12.3 (= turntable with magnet clamper), the mechanical clamper parts items are 409A, 409B and 411. In case this CDM12.3 is replaced by CDM12.3B (= turntable with Ballclamper), the magnet clamper parts are not assembled. REMARKS : Introduction from week 9438 onwards. The only difference between CDM12.3 and CDM12.3B is a modified turntable. While the old drive fixes the CD with the well-known magnet-disc hold down assembly the new CDM12.3B uses a special ball clamp mechanism. As the new turntable influences the regulation characteristic of the servo loop some parameters of the digital servo IC TDA1301 require a different setting. The parameters are stored in the uP of the set and sent to the TDA1301 during the start-up procedure. Proper function of the new CDM12.3B is only guaranteed together with the new software stage of the uP TMP47C820F-AZ6821.2.version 90 displayed in service test program. (service code reads 4822 209 33691) In case the disc drive has to be exchanged in sets equipped with the OTP version TMP47P820F or version TMP47C820F-N904 of the uP with service code 4822 209 32239 (production week 9415 or earlier version 92 is displayed in service test program), only the old discdrive CDM12.3 can be used. For that reason discdrive CDM12.3, with service code 4822 691 20834, will be kept on stock.
MODEL: AZ6825
SYMPTOM: SBC6411 (4822 138 10418) cannot be recharged to nominal voltage.
CURE: This fault is caused by the poor characteristic of this type of battery. It can be solved by replacing this rechargeable SLA battery into 4 NiCd rechargeable batteries. These NiCd batteries have to be inserted into the battery holder (4822 256 60323) delivered with the set. These batteries can (for safety reasons) not be charged in this battery holder of the set. That is why a separate battery charger PNC310 is made available. Complete set of PNC310 battery charger with 4x NiCd-R6/AA/UM3 batteries included: for /00 version (220V & Euro-connector) : 4822 218 10551 for /05 version (240V & UK-connector) : 4822 218 10552 for /17 version (USA) this PNC310-set is under investigation for /01 (multi voltage) this PNC310-set is under investigation Separate 2x NiCd-R6/AA/UM3 batteries are available under: 4822 138 10073. REMARKS : This publication will be followed by a service information A94-562, A94-563, A94-564, A94-565 From June 1994 onwards this modification will be implemented in the produced sets. From that moment onwards the battery charger PNC310 and the NiCd-R6/AA/UM3 rechargeable batteries will be added to the set.
MODEL: AZ6825
SYMPTOM: Disc motor turns in STOP mode
CURE: Due to tolerance problems it may happen, that the disc motor turns very slow in STOP mode. This is the time between pressing stop and automatic switch off from the set. (about 10 seconds) To avoid this phenomenon resistor 3922 has been changed to 3k9. Service code 4822 051 20392.
MODEL: AZ6825
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6825
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6825
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6825
SYMPTOM: PNC310 battery charger
CURE: PNC310 battery charger We announced further investigations to check the availability of PNC310 battery charger, for stroke versions /01 and /17. Now we have to inform you that we did not succeed within the Philips branded range to find battery chargers to be suited for AZ6813/01/17, AZ6814/01/17, AZ6815/01/07, AZ6823/01/17, AZ6825/01/17. However this is a common article in the market and an equivalent battery charger is expected to be available within the regular photo and brown/white good channels. PNC310 for /00 (4822 218 10551) and /05 (4822 218 10552) still remains available. REMARKS : This publication will not be followed by a service information.
MODEL: AZ6825
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-564.
MODEL: AZ6826
SYMPTOM: Bad sound CD-out and phone-out.
CURE: Check sockets.
MODEL: AZ6826
SYMPTOM: No sound from the CD player.
CURE: Check soldering pins of IC7805.
MODEL: AZ6826
SYMPTOM: CD does not read the TOC. The CD does not turn.
CURE: Check RCD (4822 691 30295).
MODEL: AZ6826
SYMPTOM: Does not accept any CD. Gives ERROR.
CURE: Check RCD. (4822 691 30295).
MODEL: AZ6826
SYMPTOM: CD skips tracks at higher tracks.
CURE: Check RCD. (4822 691 30295).
MODEL: AZ6826
SYMPTOM: Inoperative. No focus finding, no rotation.
CURE: Blue wire from modification PCB might be loose.
MODEL: AZ6826
SYMPTOM: Oscillating of the focus loop at 500Hz
CURE: In focus amplifier circuit some components are added on a separate small printed board to prevent oscillating of the focussignal. This is connected between testpoint T311 and T312, with a splitted signal to T275. The small printed board consists of the following components: in series 3 resistors between T311 and T312 respectively 3882 (4k7), 3883 (4k7) and 3849 (18k). Parallel to 3882 + 3883 a capacitor 2878 (68nF) has been mounted. On the junction of 3882 and 3883 one lead of a capacitor 2879 (220nF) is connected. The other lead of the capacitor is connected to testpoint T275 (or junction of 2811 and 2814 on main part). REMARKS: This publication will be followed by a service information
MODEL: AZ6827
SYMPTOM: Remote control SBC6225 mentioned in IFU cannot be used with AZ6827.
CURE: AZ6827 was not designed to be used with remote control SBC6225. However, if a customer has bought a SBC6225 and asks for service assistance, the next actions will solve the problem. * change resistor3888 from 220k to 47k (4822 051 20473) * change capacitor 2845 from 220p to 1n5 (5322 122 31865) REMARKS : SBC6225 will be removed from accessories list in the new IFU issue.
MODEL: AZ6827
SYMPTOM: Disc motor turns in STOP mode
CURE: Due to tolerance problems it may happen, that the disc motor turns very slow in STOP mode. This is the time between pressing stop and automatic switch off from the set. (about 10 seconds) To avoid this phenomenon resistor 3922 has been changed to 3k9. Service code 4822 051 20392.
MODEL: AZ6827
SYMPTOM: Spare part information
CURE: Spare part information As the Front Panel 4822 444 30473 is no longer available, it can be replaced by 4822 444 30472. For colour matching reason, it is suggested to replace also the CD Door by existing CD Door 4822 444 60932.
MODEL: AZ6827
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-564.
MODEL: AZ6827
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6827
SYMPTOM: Spare part information
CURE: Spare part information The Button Set-STOP 4822 410 62757 is not available.It can be replaced by 4822 410 62754.For colour matching reason, the following substitutions are suggested: Button Set-PLAY, 4822 410 62758 is replaced by 4822 410 62755 Eject Button,4822 410 62752 is replaced by 4822 410 62751
MODEL: AZ6827
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6827
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6830
SYMPTOM: Stops, intermediate faults.
CURE: Check Vg pin 19 (MPC1715). Replace capacitor 2908 (1 uF 4822 126 11692) and capacitor 2907 (100 nF 4822 122 33496).
MODEL: AZ6830
SYMPTOM: Does not start.
CURE: Laser supply. Check the bias pin 15 (MPC1715). Replace capacitor 2905 (1 uF). 4822 126 11692
MODEL: AZ6830
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6830
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6830
SYMPTOM: Preventive action in case of defective laser
CURE: Preventive action in case of defective laser Before replacing the CDM, replace capacitor 2914 (1 uF 4822 126 11692). If this capacitor starts leaking (feedback of the laser control), the laser will be destroyed.
MODEL: AZ6830
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6830
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-561.
MODEL: AZ6830
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6831
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6831
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6831
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-561.
MODEL: AZ6831
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6831
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6832
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6832
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-561.
MODEL: AZ6832
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6832
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6832
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6833
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-561.
MODEL: AZ6833
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6833
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6833
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6833
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6834
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ6834
SYMPTOM: The CD player is sometimes not able to read the TOC.
CURE: Check soldering points of IC7850.
MODEL: AZ6834
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-565.
MODEL: AZ6834
SYMPTOM: Service Manual correction
CURE: Service Manual correction - To improve and secure TOC reading capability, the resistors 3872 and 3873 are deleted. REMARKS : This modification has been implemented in production from production start onwards.
MODEL: AZ6834
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6834
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6834
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6834
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6835
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace D6251 by a SMD jumper (4822 051 20008) 2. Desolder T7282 5. Short-circuit collector/emittor line of T7282 by use of SMD jumpers (4822 051 20008) Item 417 Spring-Detection Mid (4822 492 71605) is not used. WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65 and 96.04.05. However the concerned components were not indicated clearly. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6835
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ6835
SYMPTOM: The CD player can not read the TOC.
CURE: The axle is loose at the turntablemotor side.
MODEL: AZ6835
SYMPTOM: The CD player does not produce any sound.
CURE: Check/replace DAC IC7835 (TDA1545AT/N2; 4822 209 33164).
MODEL: AZ6835
SYMPTOM: Speed turntablemotor too high. In service mode the motor always runs
CURE: Voltage at pin 37 of IC7900 too low: 1.7V. Replace capacitor C2920.
MODEL: AZ6835
SYMPTOM: Play knob stucks and does not release after pushing in.
CURE: Clean dirt between play knob pos.411 and front panel.
MODEL: AZ6835
SYMPTOM: Service Manual correction
CURE: Service Manual correction - To improve and secure TOC reading capability, the resistors 3872 and 3873 are deleted. REMARKS : This modification has been implemented in production from production start onwards.
MODEL: AZ6835
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6835
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-565.
MODEL: AZ6835
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6835
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6835
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6836
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: If the voltage of the first NiCd battery is lower than 0.5V, the detection circuit will switch off the charging loop. The solution is : Replace diode 6252 by a SMD 0R jumper (4822 051 20008). REMARKS : This modification has been implemented in production from week 9546 onwards.
MODEL: AZ6836
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ6836
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-565.
MODEL: AZ6836
SYMPTOM: Service Manual correction
CURE: Service Manual correction - To improve and secure TOC reading capability, the resistors 3872 and 3873 are deleted. REMARKS : This modification has been implemented in production from production start onwards.
MODEL: AZ6836
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6836
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6836
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6836
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6837
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ6837
SYMPTOM: Service Manual correction
CURE: Service Manual correction - To improve and secure TOC reading capability, the resistors 3872 and 3873 are deleted. REMARKS : This modification has been implemented in production from production start onwards.
MODEL: AZ6837
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6837
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6839
SYMPTOM: Skips tracks. Disc turns counter-clockwise in service test mode
CURE: Replace capacitors 2911 and 2912 by 4822 124 80483 (47uF). The fault is caused by the capacitors which become defective because of the high ripple current in the feedback loop of the DC/DC-converter. The new capacitors are specified for a higher ripple current. REMARKS : The modification is built-in in sets, produced from production week 9439 onwards. Important note: Whenever sets with an earlier production date are brought in for repair the capacitors should be exchanged as preventive action.
MODEL: AZ6839
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-566.
MODEL: AZ6839
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6839
SYMPTOM: Service hints:
CURE: Service hints: In case of servo faults in these sets it is advised to check first the functioning of the capacitors 2911 and 2912, before replacing the IC MPC1715 (item 7900). Please exchange first items 2911 and 2912, both electrolytic capacitors of 47uF (4822 124 80483), to check if this causes the failure. In case these capacitors are of value 4u7, change those into 47uF as stated in newsletter 53.01 and check again the servo functions.
MODEL: AZ6839
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6839
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6839
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6839
SYMPTOM: Service hints
CURE: Service hints - Before the CDM12.3 (4822 691 20843, magnetic clamper version and 4822 691 30335, ball clamper version) should be exchanged, make sure that the flex foil connector on the board is in a good contact with the flex foil cable of CDM12.3. If necessary clean the connections of the flex foil.
MODEL: AZ6840
SYMPTOM: CD player gives error and CD turns the wrong way around.
CURE: Replace C2911 and C2912.
MODEL: AZ6840
SYMPTOM: Stops, intermediate faults.
CURE: Check Vg pin 19 (MPC1715). Replace capacitor 2908 (1 uF 4822 126 11692) and capacitor 2907 (100 nF 4822 122 33496).
MODEL: AZ6840
SYMPTOM: Does not start.
CURE: Laser supply. Check the bias pin 15 (MPC1715). Replace capacitor 2905 (1 uF). 4822 126 11692
MODEL: AZ6840
SYMPTOM: Voices are far in the background, only music in the foreground.
CURE: Coil L5340 defective
MODEL: AZ6840
SYMPTOM: CD does not start up, no laser light.
CURE: Check/replace IC7900, T7904 and T7905.
MODEL: AZ6840
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6840
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6840
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6840
SYMPTOM: Service hints:
CURE: Service hints: In case of servo faults in these sets it is advised to check first the functioning of the capacitors 2911 and 2912, before replacing the IC MPC1715 (item 7900). Please exchange first items 2911 and 2912, both electrolytic capacitors of 47uF (4822 124 80483), to check if this causes the failure. In case these capacitors are of value 4u7, change those into 47uF as stated in newsletter 53.01 and check again the servo functions.
MODEL: AZ6840
SYMPTOM: Preventive action in case of defective laser
CURE: Preventive action in case of defective laser Before replacing the CDM, replace capacitor 2914 (1 uF 4822 126 11692). If this capacitor starts leaking (feedback of the laser control), the laser will be destroyed.
MODEL: AZ6840
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6840
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-566.
MODEL: AZ6840
SYMPTOM: Service hints
CURE: Service hints - Before the CDM12.3 (4822 691 20843, magnetic clamper version and 4822 691 30335, ball clamper version) should be exchanged, make sure that the flex foil connector on the board is in a good contact with the flex foil cable of CDM12.3. If necessary clean the connections of the flex foil.
MODEL: AZ6840
SYMPTOM: Skips tracks. Disc turns counter-clockwise in service test mode
CURE: Replace capacitors 2911 and 2912 by 4822 124 80483 (47uF). The fault is caused by the capacitors which become defective because of the high ripple current in the feedback loop of the DC/DC-converter. The new capacitors are specified for a higher ripple current. REMARKS : The modification is built-in in sets, produced from production week 9439 onwards. Important note: Whenever sets with an earlier production date are brought in for repair the capacitors should be exchanged as preventive action.
MODEL: AZ6840
SYMPTOM: CD player very shock sensitive.
CURE: Check if pos 411 (mounting ring of pressure plate) is mounted well
MODEL: AZ6841
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6841
SYMPTOM: Service hints
CURE: Service hints - Before the CDM12.3 (4822 691 20843, magnetic clamper version and 4822 691 30335, ball clamper version) should be exchanged, make sure that the flex foil connector on the board is in a good contact with the flex foil cable of CDM12.3. If necessary clean the connections of the flex foil.
MODEL: AZ6841
SYMPTOM: Codenumber information
CURE: Codenumber information The Battery Door is available with service code number 4822 444 60911.
MODEL: AZ6841
SYMPTOM: CDM news
CURE: CDM news Production of CDM12.3B (4822 691 30335) will stop at end of 1995. Successor is a low power version CDM12.3BL (4822 691 30359). To substitute CDM12.3BL for CDM12.3B, no other parts change is required. REMARKS : This publication will be followed by Service Information A95-566.
MODEL: AZ6841
SYMPTOM: Service hints:
CURE: Service hints: In case of servo faults in these sets it is advised to check first the functioning of the capacitors 2911 and 2912, before replacing the IC MPC1715 (item 7900). Please exchange first items 2911 and 2912, both electrolytic capacitors of 47uF (4822 124 80483), to check if this causes the failure. In case these capacitors are of value 4u7, change those into 47uF as stated in newsletter 53.01 and check again the servo functions.
MODEL: AZ6841
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6841
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6841
SYMPTOM: Skips tracks. Disc turns counter-clockwise in service test mode
CURE: Replace capacitors 2911 and 2912 by 4822 124 80483 (47uF). The fault is caused by the capacitors which become defective because of the high ripple current in the feedback loop of the DC/DC-converter. The new capacitors are specified for a higher ripple current. REMARKS : The modification is built-in in sets, produced from production week 9439 onwards. Important note: Whenever sets with an earlier production date are brought in for repair the capacitors should be exchanged as preventive action.
MODEL: AZ6843
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace diode D6251 by a SMD jumper (4822 051 20008) 2. Change resistors R3256 (4k7) and R3258 from (5k6) to 22k (4822 051 20223). WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6843
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6843
SYMPTOM: Modification
CURE: Modification From week 9616 onwards, 7300 CS4331-KS 'H' version (marked EYH____) has been used in production.Following changes are also implemented in order to improve total harmonic distortion of analogue output. 2311 and 2312 changed from 3,3nF to 1nF (4822 122 33446) 3305 and 3306 changed from 560 ohm to 2,7k ohm (4822 051 20272) 3329 and 3330 changed from 33k ohm to 100k ohm (4822 051 20104) REMARKS : In case the old IC is replaced by IC 4822 209 33969 (marked EYH____) the above mentioned components have to be changed too.
MODEL: AZ6843
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6843
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6843
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6843
SYMPTOM: Service manual, explanation terms
CURE: Service manual, explanation terms - Explanation of some terms, published in this manual: Frontpage: * Hillary platform 2 indicates the internal code name for a product family of CD-portables. As such codenames are mentioned in commercial circles it has been decided to add the codename also to the frontpage of the service manual. * ESP stands for Electronic Skip Protection. There is no difference between ESA ( Electronic Shock Absorption) and ESP, except for the name. The abbreviation ESP is usedonly for /17-versions. ESA is explained on page 1-2. Service tools: * By error 3 inch disc is stated in this manual. This disc is not available. With 4822 397 30184 audio signals disc SBC429 will be delivered.
MODEL: AZ6843
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6843
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BL (4822 691 30359) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6844
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace diode D6251 by a SMD jumper (4822 051 20008) 2. Change resistor R3275 from 470 ohm to 2k2 (4822 051 20222) 3. Change sistors R3256 (4k7) and R3258 from (5k6) to 22k (4822 051 20223). 4. Desolder T7280 and T7282 5. Short-circuit collector/emittor line of T7280 and T7282 by use of SMD jumpers (4822 051 20008) Item 434 Spring-detection Short (4822 71598) and item 436 Spring-Detection Mid (4822 492 71605) are not used. WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6844
SYMPTOM: Does not start up any disc, does not find a focus point.
CURE: Check soldering points of IC7800.
MODEL: AZ6844
SYMPTOM: The CD player cannot move the sledge.
CURE: Spring for linear toothes is gone. The CDM replaced.
MODEL: AZ6844
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6844
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6844
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6844
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6844
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6844
SYMPTOM: Modification
CURE: Modification From week 9616 onwards, 7300 CS4331-KS 'H' version (marked EYH____) has been used in production.Following changes are also implemented in order to improve total harmonic distortion of analogue output. 2311 and 2312 changed from 3,3nF to 1nF (4822 122 33446) 3305 and 3306 changed from 560 ohm to 2,7k ohm (4822 051 20272) 3329 and 3330 changed from 33k ohm to 100k ohm (4822 051 20104) REMARKS : In case the old IC is replaced by IC 4822 209 33969 (marked EYH____) the above mentioned components have to be changed too.
MODEL: AZ6844
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BL (4822 691 30359) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6845
SYMPTOM: Gives error and does not start up disc.
CURE: Check/replace D6951.
MODEL: AZ6845
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace diode D6251 by a SMD jumper (4822 051 20008) 2. Change resistors R3256 (4k7) and R3258 from (5k6) to 22k (4822 051 20223). WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6845
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6845
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B (4822 691 30335) is used. This version is succeeded by a low power version CDM12.3BL, (4822 691 30359) which fully substitutes the CDM12.3B, without any adaption to electronic circuitry. Use CDM12.3BL (4822 691 30359) for these sets, offering higher performance (lower power consumption) at lower price. Above substitution IS NOT POSSIBLE for AZ6846, AZ6847, AZ6848, AZ6850. For these sets CDM12.3B remains available (4822 691 30335). Reason:The disc motor drive circuit of these sets consists of a discrete transistor bridge which is supplied by non-regulated power supply of the set. The lower impedance of disc motor of CDM12.3BL (6 ohms, for CDM12.3B this is 11 ohms) and the floating power supply influence the bandwidth and the gain of the disc motor control loop. In case the sets are supplied with an external AC/DC converter the supply voltage rises and the control loop starts to oscillate. In all other sets the disc motor is driven by one H-bridge of the servo driver IC MPC1715 where the influence of the non-regulated power supply is not critical. REMARKS : This publication has been distributed via following service informations: A95-563: AZ6820, AZ6821, AZ6822, AZ6823 A95-564: AZ6825, AZ6827 A95-561: AZ6830, AZ6831, AZ6832, AZ6833 A95-565: AZ6834, AZ6835, AZ6836 A95-566: AZ6839, AZ6840, AZ6841
MODEL: AZ6845
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6845
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6845
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6845
SYMPTOM: Modification
CURE: Modification From week 9616 onwards, 7300 CS4331-KS 'H' version (marked EYH____) has been used in production.Following changes are also implemented in order to improve total harmonic distortion of analogue output. 2311 and 2312 changed from 3,3nF to 1nF (4822 122 33446) 3305 and 3306 changed from 560 ohm to 2,7k ohm (4822 051 20272) 3329 and 3330 changed from 33k ohm to 100k ohm (4822 051 20104) REMARKS : In case the old IC is replaced by IC 4822 209 33969 (marked EYH____) the above mentioned components have to be changed too.
MODEL: AZ6845
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BL (4822 691 30359) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6846
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace D6251 by a SMD jumper (4822 051 20008) 2. Change R3275 from 470 ohm to 2k2 (4822 051 20222) 3. Change R3256 (470 Ohm) and R3258 (560 Ohm) to 2k2 (4822 051 20222 4. Desolder T7280 and T7282 5. Short-circuit collector/emittor line of T7280 and T7282 by use of SMD jumpers (4822 051 20008) WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6846
SYMPTOM: Correction partslist and list of accessories
CURE: Correction partslist and list of accessories Service codenumber for rechargeable battery SBC6445 was published 4822 138 10073 but this should read 4822 138 10592.
MODEL: AZ6846
SYMPTOM: Accessories
CURE: Accessories - Next accessories list is valid for these typenumbers /00/01/05/06 SBC1059 SIGNAL LEAD (3.5mm plug -> cinch plugs) 4822 321 21602OOOO SBC1085 SIGNAL LEAD (3.5mm plug at both ends) 4822 321 60546OOOO SBC3304 EARPHONE 4822 015 20619XXXX SBC6225-2 REMOTE CONTROL 4822 218 10571OOOO SBC6242 REMOTE CONTROL (LC-display) 4822 218 10559OOOO PNC310/00 BATTERY CHARGER + 4 x NICAD-R6 4822 218 10551O PNC310/05 BATTERY CHARGER + 4 x NICAD-R6 4822 218 10552O CARRYING BAG SBC6250 4822 600 70781XXXX SBC6608/01 AC/DC ADAPTOR 4822 272 10297 X SBC6608/05 AC/DC ADAPTOR 4822 272 10294X SBC6619/00 AC/DC ADAPTOR 4822 219 82443X SBC6619/06 AC/DC ADAPTOR 4822 272 10309 X SBC3547 Mk2CAR BASE ON SWAN NECK 4822 015 20363OOOO SBC6562 ADAPTOR PLATE 4822 466 93437OOO SBC3557 CAR ADAPTOR SET 4822 015 20423OOOO X...supplied with the set O...optional available
MODEL: AZ6846
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6846
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6846
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B is used (4822691 30335). This mechanism CAN BE replaced by CDM12.3BL, (4822 691 30359). Add a resistor of 3,3 Ohm 1/3 W (4822 052 10338) in series to the turntable motor.
MODEL: AZ6846
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the mechanical partslist the codenumber for the disc drive CDM12.3B is missing. The drive is available under service code 4822 691 30335.
MODEL: AZ6846
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6846
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6846
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6847
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace D6251 by a SMD jumper (4822 051 20008) 2. Change R3275 from 470 ohm to 2k2 (4822 051 20222) 3. Change R3256 (470 Ohm) and R3258 (560 Ohm) to 2k2 (4822 051 20222 4. Desolder T7280 and T7282 5. Short-circuit collector/emittor line of T7280 and T7282 by use of SMD jumpers (4822 051 20008) Item 433 Spring-Detection Short (4822 492 71598) and item 434 Spring-Detection Mid (4822 492 71605) are not used. WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6847
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the mechanical partslist the codenumber for the disc drive CDM12.3B is missing. The drive is available under service code 4822 691 30335.
MODEL: AZ6847
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6847
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6847
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6847
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6847
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6847
SYMPTOM: Accessories
CURE: Accessories - Next accessories list is valid for these typenumbers /00/01/06 SBC1059 SIGNAL LEAD (3.5mm plug -> cinch plugs) 4822 321 21602OOO SBC1085 SIGNAL LEAD (3.5mm plug at both ends) 4822 321 60546OOO SBC3304S EARPHONE 4822 242 50086X SBC3308S EARPHONE 4822 242 50085 XX SBC6242 REMOTE CONTROL (LC-display) 4822 218 10559XXX SBC6445 NICAD-R6NC-P (2 pc.) 4822 138 10592XXX CARRYING BAG SBC6255 4822 600 70779XXX SBC6608/01 AC/DC ADAPTOR 4822 272 10297 X SBC6619/00 AC/DC ADAPTOR 4822 219 82443X SBC6619/06 AC/DC ADAPTOR 4822 272 10309X SBC3547 Mk2CAR BASE ON SWAN NECK 4822 015 20363OOO SBC6562 ADAPTOR PLATE 4822 466 93437OOO SBC3557 CAR ADAPTOR SET 4822 015 20423OOO X...supplied with the set O...optional available
MODEL: AZ6847
SYMPTOM: Correction partslist and list of accessories
CURE: Correction partslist and list of accessories Service codenumber for rechargeable battery SBC6445 was published 4822 138 10073 but this should read 4822 138 10592.
MODEL: AZ6847
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B is used (4822691 30335). This mechanism CAN BE replaced by CDM12.3BL, (4822 691 30359). Add a resistor of 3,3 Ohm 1/3 W (4822 052 10338) in series to the turntable motor.
MODEL: AZ6848
SYMPTOM: NiCd batteries SBC6445 cannot be re-charged in the set.
CURE: Reason for malfunction can either be: Bad contact of accu detection springs (especially spring contact via cabinet part) or over-discharge of NiCd batteries (voltage on battery is lower than 0.9V). In both cases the microcontroller will never switch on charging because the accu_in line from the accu detection circuit remains low, assuming no accus inserted. The solution is : 1. Replace D6251 by a SMD jumper (4822 051 20008) 2. Change R3275 from 470 ohm to 2k2 (4822 051 20222) 3. Change R3256 (470 Ohm) and R3258 (560 Ohm) to 2k2 (4822 051 20222 4. Desolder T7280 and T7282 5. Short-circuit collector/emittor line of T7280 and T7282 by use of SMD jumpers (4822 051 20008) Item 433 Spring-Detection Short (4822 492 71598) and item 434 Spring-Detection Mid (4822 492 71605) are not used. WARNING Above mentioned modification disables accu detection at two battery positions. As a result also normal batteries can now be charged by the circuit, if they are inserted in those positions. These batteries may become leak and damage the CD-electronics. CUSTOMERS MUST THEREFORE BE INSTRUCTED NOT TO MIX-UP DIFFERENT BATTERY TYPES!! REMARKS : This phenomenon has already been published in newsletter 65. The service solution stated in this edition could not solve all recharging complaints in the field. The new modifications will further improve the detection behaviour. It is possible that completely discharged accus (voltage around 0V) cannot be recharged anymore. For completely discharged accus an external charger can be used. If problems remain, customers should be informed to charge accus even if the set is not in use for a longer period of time. IMPORTANT NOTE: It is advised to modify all sets brought-in for repair.
MODEL: AZ6848
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6848
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6848
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6848
SYMPTOM: Accessories
CURE: Accessories - Next accessories list is valid for these typenumbers /00/01/17 SBC1059 SIGNAL LEAD (3.5mm plug -> cinch plugs) 4822 321 21602OOO SBC1085 SIGNAL LEAD (3.5mm plug at both ends) 4822 321 60546OOO SBC3304 EARPHONE 4822 015 20619XX SBC3322/MVX HEADPHONE 4822 242 50076X SBC6225-2 REMOTE CONTROL 4822 218 10571OOO SBC6242 REMOTE CONTROL (LC-display) 4822 218 10559OO SBC6445 NICAD-R6NC-P (2 pc.) 4822 138 10592XXX CARRYING BAG SBC6255 4822 600 70779OO SBC6619/00 AC/DC ADAPTOR 4822 219 82443X SBC6619/01 AC/DC ADAPTOR 4822 272 10308 X SBC6619/17 MVX AC/DC ADAPTOR 4822 272 10305X SBC3547 Mk2CAR BASE ON SWAN NECK 4822 015 20363OO SBC6560 SIMPLE CAR BASE MVX (w/o electronic) 4822 466 93339O SBC6562 ADAPTOR PLATE 4822 466 93437XX SBC6562 ADAPTOR PLATE MVX 4822 466 93338O SBC3557 CAR ADAPTOR SET 4822 015 20423XX DC/DC CONVERTER OF SBC3557 4822 214 52215X CAR ADAPTOR CASS OF SBC3557 4822 268 90516X X...supplied with the set O...optional available
MODEL: AZ6848
SYMPTOM: Correction
CURE: Correction The accessory SBC3546 stated in IFU or service manual is not correct. The car base SBC3546 cannot hold the CD portable models from AZ6830 until AZ6850. To mount these CD portable sets in a car, it is suggested to order car base SBC6560 (4822 466 93339) and car base adaptor SBC6562 (4822 466 93338 for Magnavox or 4822 466 93437 for Philips Modelnumbers).
MODEL: AZ6848
SYMPTOM: Spare part information
CURE: Spare part information Capacitor item 2300, 330uF/6.3V (4822 124 80352) is not available. It can be replaced by 220uF/4V (4822 124 42383) without any effect on performance.
MODEL: AZ6848
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B is used (4822691 30335). This mechanism CAN BE replaced by CDM12.3BL, (4822 691 30359). Add a resistor of 3,3 Ohm 1/3 W (4822 052 10338) in series to the turntable motor.
MODEL: AZ6848
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6848
SYMPTOM: Correction partslist and list of accessories
CURE: Correction partslist and list of accessories Service codenumber for rechargeable battery SBC6445 was published 4822 138 10073 but this should read 4822 138 10592.
MODEL: AZ6848
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the mechanical partslist the codenumber for the disc drive CDM12.3B is missing. The drive is available under service code 4822 691 30335.
MODEL: AZ6850
SYMPTOM: Crackling sound at high volume.
CURE: After disconnecting pin 8 and 9 of IC7311 OK. Replace IC7311.
MODEL: AZ6850
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6850
SYMPTOM: Spare part information
CURE: Spare part information Capacitor item 2300, 330uF/6.3V (4822 124 80352) is not available. It can be replaced by 220uF/4V (4822 124 42383) without any effect on performance.
MODEL: AZ6850
SYMPTOM: Spare part information
CURE: Spare part information * * * * *I M P O R T A N T * * * * * * I M P O R T A N T * * * * * In this set CD mechanism CDM12.3B is used (4822691 30335). This mechanism CAN BE replaced by CDM12.3BL, (4822 691 30359). Add a resistor of 3,3 Ohm 1/3 W (4822 052 10338) in series to the turntable motor.
MODEL: AZ6850
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ6850
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6850
SYMPTOM: Service Manual / System description
CURE: Service Manual / System description - System description, in English language, of the Electronic Shock Absorption (ESA) is printed now. It is an addition to Chapter 6 (Compact Disc) of the Audio Training Kit 1993. In this publication the functioning of shock absorption has been described. Also inserted in this description is the explanation of the CDM12.3 mechanism and the differences between CDM12.3B and CDM12.3BL have been shown. At least the functioning of the applied remote controls in portable sets (SBC6225 and SBC6242) are explained. This description can be ordered with service code number: 4822 725 24941. REMARKS : Portable CD'94 System Description:4822 725 24941.
MODEL: AZ6850
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Rechargeable battery pack SBC6445 can be charged in AZ6850. On the circuit diagram of SUPPLY/CONTROL PART (page 10 of service manual), the Explanation of abbreviations should be corrected as : X...Components only for AZ6847/AZ6848/AZ6850
MODEL: AZ6856
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6856
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BL (4822 691 30359) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6856
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6856
SYMPTOM: Modification
CURE: Modification From week 9616 onwards, 7300 CS4331-KS 'H' version (marked EYH____) has been used in production.Following changes are also implemented in order to improve total harmonic distortion of analogue output. 2311 and 2312 changed from 3,3nF to 1nF (4822 122 33446) 3305 and 3306 changed from 560 ohm to 2,7k ohm (4822 051 20272) 3329 and 3330 changed from 33k ohm to 100k ohm (4822 051 20104) REMARKS : In case the old IC is replaced by IC 4822 209 33969 (marked EYH____) the above mentioned components have to be changed too.
MODEL: AZ6858
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BL (4822 691 30359) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6858
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3B (4822 691 30335) REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ6858
SYMPTOM: Modification
CURE: Modification From week 9616 onwards, 7300 CS4331-KS 'H' version (marked EYH____) has been used in production.Following changes are also implemented in order to improve total harmonic distortion of analogue output. 2311 and 2312 changed from 3,3nF to 1nF (4822 122 33446) 3305 and 3306 changed from 560 ohm to 2,7k ohm (4822 051 20272) 3329 and 3330 changed from 33k ohm to 100k ohm (4822 051 20104) REMARKS : In case the old IC is replaced by IC 4822 209 33969 (marked EYH____) the above mentioned components have to be changed too.
MODEL: AZ6858
SYMPTOM: Modification
CURE: Modification Above mentioned sets use CD mechanism CDM12.3B (4822 691 30335) or CDM12.3BL (4822 691 30359).The CDM might be exchanged because the guide block (linear toothed bar) is out of position.It has too much play. REMARKS : Guide block has been modified and the new guide block has been introduced from production week 9611 onwards. In the beginning, the CDM with a modified guide block can only be recognized from the week code printed on the label sticked on the CDM.Later on, the colour of the guide block is changed from black into white.Only CDM12.3 marked 9611 and higher should be applied.
MODEL: AZ6880
SYMPTOM: Correction Service Manual, Electrical partslist:
CURE: Correction Service Manual, Electrical partslist: The service code number of Q421 74HC4052 should read 5322 209 15779.
MODEL: AZ6892
SYMPTOM: No functions when remote control plug inserted
CURE: Replace remote control socket.
MODEL: AZ6892
SYMPTOM: Will not play CD unless play button is kept depressed.
CURE: When play button is released, the disk plays backwards. 3.5mm remote jack socket faulty.Replace jack socket - A501.
MODEL: AZ6892
SYMPTOM: Difficulty in selecting service mode
CURE: Difficulty in selecting service mode Where difficulty is experienced in selecting the service test routine on the above models the following procedure should be adopted. 1. Hold down STORE and PREVIOUS TRACK buttons. 2. Activate the PLAY button momentarily for a very short time (less than second). 3. Keep the STORE and PREVIOUS TRACK buttons held down until a single black line appears on the display indicating that the player is now in service mode. The player should now advance through service positions 0, 1 and 2 to the LCD display tests A and B each time the PLAY button is pressed.
MODEL: AZ6897
SYMPTOM: Will not play CD unless play button is kept depressed.
CURE: When play button is released, the disk plays backwards. 3.5mm remote jack socket faulty.Replace jack socket - A501.
MODEL: AZ6897
SYMPTOM: Difficulty in selecting service mode
CURE: Difficulty in selecting service mode Where difficulty is experienced in selecting the service test routine on the above models the following procedure should be adopted. 1. Hold down STORE and PREVIOUS TRACK buttons. 2. Activate the PLAY button momentarily for a very short time (less than second). 3. Keep the STORE and PREVIOUS TRACK buttons held down until a single black line appears on the display indicating that the player is now in service mode. The player should now advance through service positions 0, 1 and 2 to the LCD display tests A and B each time the PLAY button is pressed.
MODEL: AZ7161
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ7166
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ7167
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ7168
SYMPTOM: Cannot start up with 8 cm disc
CURE: Problem can be solved by changing the following parts : 1. Replace 2920 1uF by 220nF/63V (4822 122 32927). 2. Replace 3921 2k2 by 10k (4822 117 11846).
MODEL: AZ7260
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7260
SYMPTOM: Laser defective
CURE: Before replacement of the CDM12.3, replace C2902 (1uF 6V). If this capacitor in the feedback loop interrupts or becomes resistive, it destroys the laser. The result would be an expensive repair.
MODEL: AZ7260
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7260
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7260
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7261
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7261
SYMPTOM: Laser defective
CURE: Before replacement of the CDM12.3, replace C2902 (1uF 6V). If this capacitor in the feedback loop interrupts or becomes resistive, it destroys the laser. The result would be an expensive repair.
MODEL: AZ7261
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7261
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7261
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7262
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7262
SYMPTOM: Set totally inoperative.
CURE: Check/replace C2252 (100nF).
MODEL: AZ7262
SYMPTOM: Laser defective
CURE: Before replacement of the CDM12.3, replace C2902 (1uF 6V). If this capacitor in the feedback loop interrupts or becomes resistive, it destroys the laser. The result would be an expensive repair.
MODEL: AZ7262
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7262
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7263
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7263
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7263
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7264
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7264
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7264
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7265
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7265
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7265
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7265
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7265
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7266
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7266
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7266
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7266
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7267
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7267
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7267
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7267
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7268
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7268
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7268
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7268
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7271
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7271
SYMPTOM: Sledge motor makes a rattling sound.
CURE: Turns constantly right and left. Intermittent fault. Inner switch makes bad contact. Pin 9 IC7400 stays high.
MODEL: AZ7271
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7271
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7272
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7272
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7272
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7275
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7275
SYMPTOM: Sledgemotor makes a rattling sound.
CURE: bad contact of the inner switch. Pin 9 stays high at IC7400
MODEL: AZ7275
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7275
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7278
SYMPTOM: Charging battery does not function
CURE: The player functions well with other NICAD's but they can not be charged. Only the AY3361 can be charged in the player. Codenumber = 4822 138 10615
MODEL: AZ7278
SYMPTOM: Service hint
CURE: Service hint This set cannot charge NiCd rechargeable batteries except Philips battery pack AY3361.The set detects the exposed negative terminal of the AY3361 and start charging.If other batteries are used (covered negative terminal), they wil not work.
MODEL: AZ7278
SYMPTOM: Correction Instruction For Use
CURE: Correction Instruction For Use For sets with factory code KT02 On the page of CONTROLS, the STOP button will not activate charging. The fact is that the NiCad battery pack will be charged automatically if the mains adaptor is connected. Also in the TROUBLESHOOTING chapter, the expression 'no CHARGE indicator' should be deleted because 'CHARGE' will never appear on display. REMARKS : Instruction for Use will be updated from week 9731 onwards.
MODEL: AZ7283
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7360
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7360
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7361
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7362
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7362
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BLC (4822 691 10487). REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ7362
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7362
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7363
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7363
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BLC (4822 691 10487). REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ7363
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7363
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7364
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7364
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BLC (4822 691 10487). REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ7364
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7364
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7365
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7365
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BLC (4822 691 10487). REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ7365
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7365
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7366
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7366
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7366
SYMPTOM: Set skips tracks or mutes in ESA-mode (double speed).
CURE: Full symptom: Set skips tracks or mutes in ESA-mode (double speed), memory is not filled-up properly. In normal play-mode with ESA off (single speed) the set operates without problems. Solution: Bearing of turntable motor is worn out (lifetime problem) Replace CDM12.3BLC (4822 691 10487). REMARKS : The phenomenon can hardly be reproduced and even might disappear in vertical playing position. In case of customer complaints the sets should allways be checked in both, ESA and non-ESA-mode.
MODEL: AZ7366
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Pos. 414 is 4822 417 11273 If pos. 416 is orderd, also pos 414 is delivered.
MODEL: AZ7367
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7368
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7372
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7376
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7381
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7381
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7381
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7381
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7382
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7382
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7382
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7383
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7383
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7383
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7383
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7384
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7384
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7385
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7385
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7386
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7386
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7387
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7387
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7388
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7453
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7453
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7457
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7457
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7460
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7460
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7461
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7462
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7462
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7463
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7463
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced.To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7464
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7464
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7464
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced. To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7465
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7465
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7465
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced. To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7466
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7467
SYMPTOM: Set skips tracks/slide motor does not turn in PLAY-mode.
CURE: Full symptom: Set skips tracks/slide motor does not turn in PLAY-mode. The phenomenon mainly occurs at low temperatures (< -10C). Reason: Conceptual failure of the set. In PLAY-mode the gain of the slide servo control loop is too low. The gain depends on a software parameter of the CD7 (set by the microprocessor), the gain of the servo driver, temperature behaviour of slide motor and friction of gear. In worst case (low gain of servo driver/ low impedance of slide motor) the set can already be inoperative at ambient temperature !! During production only selected servo driver / CD-drive combinations are in use. In addition the low pass filter of the slide motor control loop has been redesigned. As long term solution the software will be changed. Microprocessors with software versions <=v70 already cover all tolerance problems. Note: Software version numbers are counted downwards. That means the lower the number, the newer the software. The software version is displayed when entering the service test program. Cure: Because selection can not be done in the service field and upgrading of the microprocessor is rather expensive following service strategy has been worked out: In case of defective servo driver or defective CD-drive and software version >v70 - replace defective part - solder resistor 12R in parallel to slide motor (simulates low temperature) - enter PLAY-mode and check slide movement (watch tooth wheel of slide motor) - if slide does not move or still skips tracks modify low pass filter (if not already carried out) pos. 3817470R(4822 051 20471) pos. 38180R(4822 051 20008) pos. 281747nF(4822 122 32542) pos. 281847nF(4822 122 32542) - repeat PLAY-test - if set is still inoperative upgrade microprocessor (see table below) - desolder resistor 12R TYPENUMBERFACT. CHANGE UPGRADE MICROPROCESSOR TO CODE AZ7263, AZ7264KT01 onwards TMP47C823F-AZ7264.2 or TMP47P823VF(OTP) software version: v70 service code: 4822 209 13566 1) AZ7260, AZ7261, KT01 onlyTMP47C823F-AZ7264.2 or TMP47P823VF(OTP) AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 1)service code: 4822 209 13566 1) AZ7268 2) AZ7260, AZ7261, KT02 onwards TMP47C422F-AZ7262.2 AZ7262, AZ7265, (printed software version: v70 AZ7266, AZ7267,board 2)service code: 4822 209 15023 AZ7268 2) AZ7360, AZ7361, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7362, AZ7363,software version: v69 AZ7364, AZ7365,service code: 4822 209 13133 AZ7366, AZ7367 AZ7461, AZ7464, KT01 onwards TMP87CK20AF-AZ7466.3 AZ7465, AZ7466,software version: v69 AZ7467 service code: 4822 209 13133 1) Service stock of old processors has been cleared, only new version will be delivered. 2) These typenumbers are produced with two different versions of the printed board.
MODEL: AZ7474
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7474
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced. To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7476
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 is low. Solution 1 : Change resistor 3852 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 (4822 209 12993). REMARKS : 3852 had been changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7476
SYMPTOM: Laser light-pen is dead.
CURE: The light-pen is probably damaged by the high electromagnetic radiation especially from mobile phone transmittion.The CDM has to be replaced. To avoid this fault to be happened again, change 2902 from 10nF to 1nF (5322 122 34123). REMARKS : Modification had beed implemented in production from week 9716 onwards.
MODEL: AZ7481
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7481
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7481
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7481
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7482
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7482
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7482
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7482
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7483
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7483
SYMPTOM: In course of production, the PCB Assembly was changed to PB2
CURE: (for details please refer to Service Manual 4822 725 26021). In the PB2 assembly a smaller headphone jack was used and thus the hole for h/p jack on the cabinet was also made smaller. The cabinet (4822 449 80201) of the sets produced in earlier stage is no longer available and the new cabinet (4822 449 80266) with smaller jack hole will be delivered as substitute. As a service solution, for repairing sets with bigger headphone jack, we suggest to enlarge the hole by use of files.
MODEL: AZ7483
SYMPTOM: Modification
CURE: Modification Due to delivery problems of the 4Mbit DRAM IC, the printed board of the above mentioned sets had to be changed from PB2 to PB2+. The major difference between these two boards is the number and size of the DRAMs used: While PB2 is designed to two DRAMs (2x4Mbit max.), PB2+ can only handle one DRAM (1x16Mbit max.). As a result the ESA buffer of sets with PB2+ will now store 45s. of music (technical value).The commercial values of 12s for AZ738x and 25s for AZ748x remain untouched. PB2+ is already known from Mable Platform 5A - AZ7582, AZ7583. For servicing please refer to the following Service Manuals. Board PCB code no.DRAMService Manual - - - PB2 3103 303 3394.x 7810 + 7811 4822 725 26021 PB2+3103 303 3406.x 78114822 725 26022 REMARKS : The PCB code co. is located on the component side of the board.
MODEL: AZ7483
SYMPTOM: Chassis used in production
CURE: Chassis used in production Two chassis have been used in these models.From production start onwards, 'MABEL PBAS3' was used.The hole on the cabinet for the headphone jack is 6.6 mm in diameter.Later 'MABEL PBAS2' is implemented and the production code is changed to KT02.The hole for headphone jack is 6.0 mm in diameter. Because only the cabinets with smaller hole will be supplied, we suggest the service technician to manually enlarge hole on the cabinets to match the headphone jack of the 'MABEL PBAS3' as a service solution.
MODEL: AZ7495
SYMPTOM: Correction to Service Manual
CURE: Accessories: The code number for the External Battery Box AY3770 should read 4822 256 10592.
MODEL: AZ7562
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 and 7852 is low. Solution 1 : Change resistors 3852 and 3853 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 and 7852 (4822 209 12993). REMARKS : 3852 and 3853 are changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7565
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 and 7852 is low. Solution 1 : Change resistors 3852 and 3853 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 and 7852 (4822 209 12993). REMARKS : 3852 and 3853 are changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7566
SYMPTOM: Pop noise is audible when ESA/ESP is on.
CURE: The working voltage of DRAM 7851 and 7852 is low. Solution 1 : Change resistors 3852 and 3853 from 22 Ohm to 0 Ohm jumper (4822 051 20008). Solution 2 : Replace 7851 and 7852 (4822 209 12993). REMARKS : 3852 and 3853 are changed to 0 Ohm in production from week 9730 onwards.
MODEL: AZ7582
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7583
SYMPTOM: Ni-Cad battery pack cannot be recharged.
CURE: The ACTUATING PIN-CHARGE (item 431) does not connect properly. It has to be replaced by a modified one - 4822 535 10522. REMARKS : New part has been used in production from week 9809 onwards.
MODEL: AZ7595
SYMPTOM: Correction to Service Manual
CURE: Accessories: The code number for the External Battery Box AY3770 should read 4822 256 10592.
MODEL: AZ7794
SYMPTOM: Correction to Service Manual
CURE: Accessories: The code number for the External Battery Box AY3770 should read 4822 256 10592.
MODEL: AZ7894
SYMPTOM: Correction to Service Manual
CURE: Accessories: The code number for the External Battery Box AY3770 should read 4822 256 10592.
MODEL: AZ7894
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the CD Door Assembly is wrong. It should read 3140 119 02730.
MODEL: AZ8000
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected : Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8002
SYMPTOM: Service mode CD-part
CURE: Service mode CD-part Service pos. 0 = Next + search >> + power on_ (all together) Service pos. 1 = Service pos. 0 Then press play Service pos. 2 = Service pos. 1 Then press next
MODEL: AZ8002
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8006
SYMPTOM: Intermittent fault of CD. Turntable does not start-up/skips tracks.
CURE: Check the copper pattern of the CD decoder board. A copper track of the CD decoder board might be interrupted. REMARKS : From week 9502 onwards, the decoder board with improved copper pattern lay-out has been used in production.
MODEL: AZ8006
SYMPTOM: Correction
CURE: Correction In Service Information A94-576 (4822 725 25358), the test points were erroneously not given. Please add on page 23 (circuit diagram) the location of test points as described below: TP1 = junction of RV103 and JP1 TP2 = pin 18 of U101 TP3 = junction of R111 and JP1 TP4 = pin 31 (RF) of U101 TP5 = pin 1 of U101 TP6 = junction of RV104 and JP2
MODEL: AZ8010
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8010
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8010
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8012
SYMPTOM: CD interrupted by high RF field strength.
CURE: Check the ground-connections of the copper foil which is already present on the RCD mechanism. Add a copper shield between the RCD mechanism and the tuner frame in such a way that the two bundles of wires (6x and 8x) between the RCD mechanism and the RCD board are covered. Fix the shield with double sided tape to the mechanism and the tuner frame and ground the shield with a wire to the mechanism. REMARKS : If not adequately shielded, the wire bundles tend to pick-up the strong MW electro-magnetic fields.
MODEL: AZ8012
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8012
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit. The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8012
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8012
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8012
SYMPTOM: Service manual partslist
CURE: Service manual partslist Erroneously wrong codenumber has been published in partslist. CD clamper (item 437) should read 4822 528 10711 instead of 4822 535 60096. Because of acoustic vibration due to the speakers output the soft version clamper (4822 535 60096) has been replaced by the stiff version (4822 528 10711). In sets where plastic walls are created to separate the CD unit the soft version (4822 535 60096) is in use!!
MODEL: AZ8020
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8020/37
SYMPTOM: Electrical Partslist
CURE: Electrical Partslist For safety reason, the capacitor 2346 has been changed from 470F/16V to 470F/25V (4822 124 42246) because the operating voltage is exceeding the capacitor rating.
MODEL: AZ8022
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8022
SYMPTOM: Codenumber information
CURE: Codenumber information The tuning frame is available with 4822 464 70642. This is item 515 in Service Manual AZ8022 and item 245 in Service Manual AZ8030, AZ8035.
MODEL: AZ8022/20
SYMPTOM: Totally inoperative.
CURE: Check voltage regulator IC7882 (LM2940CT-5.0; 5322 20972487).
MODEL: AZ8022/20
SYMPTOM: CD-part totally inoperative.
CURE: Check connector 1805.
MODEL: AZ8022/20
SYMPTOM: Crackling sound from the left-hand speaker.
CURE: Check speaker (4822 240 40202).
MODEL: AZ8022/20
SYMPTOM: No sound from CD part. CD turns and display info is correct.
CURE: Check DAC IC7861.
MODEL: AZ8022/20
SYMPTOM: When pressing the headphone plug, one channel interrupted.
CURE: Check headphone socket pos 1251.
MODEL: AZ8022/20
SYMPTOM: CD part inoperative.
CURE: T7921 heat-sensitive, when hot CD inoperative. Replace T7921 (BC549C).
MODEL: AZ8022/20
SYMPTOM: Does not accept discs after some time.
CURE: Check solder joints photo-diode connector 1801 on RCD-board.
MODEL: AZ8022/20
SYMPTOM: CD inoperative. RCD does not find a focus point.
CURE: Check whether sledge axis is clipped in.
MODEL: AZ8022/20
SYMPTOM: Sometimes CD-part totally inoperative.
CURE: Check for interrupted print track at CD-PCB (near D6921).
MODEL: AZ8022/20
SYMPTOM: Mechanical sound from the CD-player.
CURE: Check wether the CD-drive screws are sufficient screwed-in.
MODEL: AZ8022/20
SYMPTOM: CD skips tracks. The player is very shock-sensitive.
CURE: Check RCD (4822 691 30268).
MODEL: AZ8030
SYMPTOM: No synchro-start.
CURE: Check switch S1780.
MODEL: AZ8030
SYMPTOM: No record mode.
CURE: Check whether the recording switch operation is O.K. The PCB might be be wrong mounted. Remount the PCB.
MODEL: AZ8030
SYMPTOM: Hum in audio signal.
CURE: Check C2225 in output stage.
MODEL: AZ8030
SYMPTOM: Bad sound and hum from cassette part.
CURE: Check wires from rec/play head at PCB-side and head connections.
MODEL: AZ8030
SYMPTOM: The RCD cannot play any higher tracks.
CURE: Check RCD (4822 691 20768).
MODEL: AZ8030
SYMPTOM: Bass boost switch does not lock.
CURE: Check the bass boost switch S1500.
MODEL: AZ8030
SYMPTOM: Gives ERROR. CD reads-in but outputs gives digital sound.
CURE: Check capacitor 2859.
MODEL: AZ8030
SYMPTOM: The tape speed is too low.
CURE: Check motor (4822 361 21511).
MODEL: AZ8030
SYMPTOM: Does not find focus, laser is burning, focus lens is moving.
CURE: Check RCD (4822 691 20768).
MODEL: AZ8030
SYMPTOM: Sometimes only one channel has been recorded.
CURE: Check whether the tape deck PCB is mounted correctly.
MODEL: AZ8030
SYMPTOM: Mechanical sound from the CD-player.
CURE: Check whether the CD-drive screws are screwed-in sufficiently.
MODEL: AZ8030
SYMPTOM: The disc touches the cabinet because the RCD is mounted too low.
CURE: The problem is due to RCD screws which are not sufficiently tightened. Problem is solved by tightening properly.
MODEL: AZ8030
SYMPTOM: CD inoperative. No disc error.
CURE: Check whether the laser pickup is in correct position. If not, remount the guiding axles of the pickup.
MODEL: AZ8030
SYMPTOM: Cassette lid does not close sometimes.
CURE: Check whether the cassette lid spring is bended. Rebend the spring.
MODEL: AZ8030
SYMPTOM: CD-lid does not lock.
CURE: Check whether locking lever pos.271 is defective (4822 276 13079).
MODEL: AZ8030
SYMPTOM: Disc cover does not close.
CURE: Check disc cover clamper pos 271.
MODEL: AZ8030
SYMPTOM: Codenumber information
CURE: Codenumber information The tuning frame is available with 4822 464 70642. This is item 515 in Service Manual AZ8022 and item 245 in Service Manual AZ8030, AZ8035.
MODEL: AZ8030
SYMPTOM: Service Manual correction
CURE: Service Manual correction: - The complete cassette mechanism which was marked on the Exploded view drawing in the manual should read item 1730, this item number is mentioned in the partslist with correspondent service code number 4822 691 20818.
MODEL: AZ8030
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8035
SYMPTOM: The disc touches the cabinet because the RCD is mounted too low.
CURE: The problem is due to RCD screws which are not sufficiently tightened. Problem is solved by tightening properly.
MODEL: AZ8035
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8035
SYMPTOM: Codenumber information
CURE: Codenumber information The tuning frame is available with 4822 464 70642. This is item 515 in Service Manual AZ8022 and item 245 in Service Manual AZ8030, AZ8035.
MODEL: AZ8035/37
SYMPTOM: Partslist
CURE: Partslist - For safety reason, the capacitor 2346 has been changed from 470F/16V to 470F/25V (4822 124 42246) because the operating voltage is exceeding the capacitor rating.
MODEL: AZ8040
SYMPTOM: Totally inoperative.
CURE: Check stabiliser IC 7250
MODEL: AZ8040
SYMPTOM: Shuffle mode inoperative.
CURE: Shuffle switch S1916 interrupted.
MODEL: AZ8040
SYMPTOM: The tuner is inoperative.
CURE: The coil 5903 to the mass of the tuner board is interrupted.
MODEL: AZ8040
SYMPTOM: CD does not function
CURE: Check/replace CDM (4822 691 30327)
MODEL: AZ8040
SYMPTOM: Sometimes no sound from one or both channels.
CURE: Check the volume potentiometer R3500 (4822 102 10417).
MODEL: AZ8040
SYMPTOM: Plopping sound with deck in mode play, rewind and forward wind.
CURE: IC7700 resoldered, also deck switch resoldered.
MODEL: AZ8040
SYMPTOM: No sound from the right hand speaker.
CURE: Check whether jumper 9703 touches the volume potmeter.
MODEL: AZ8040
SYMPTOM: No sound from the CD player.
CURE: Check soldering of pins of IC1311.
MODEL: AZ8040
SYMPTOM: No sound from the CD part, radio and cassette are OK.
CURE: Check soldering of pins of IC7851.
MODEL: AZ8040
SYMPTOM: Speed in play mode much too high.
CURE: Remount pos 67/68 and paper shield.
MODEL: AZ8040
SYMPTOM: Motor winding noise in LW mode.
CURE: Add a capacitor 2780 470uF/16V (4822 124 40198) across the motor (+/-). REMARKS : Introduced in production.
MODEL: AZ8040
SYMPTOM: Rattling sound from RCD mechanism, sledge motor keeps on turning
CURE: Check soldering points around IC7811
MODEL: AZ8040
SYMPTOM: CD player gives E in display and does not start up the disc.
CURE: Check soldering at pins of IC7811.
MODEL: AZ8040
SYMPTOM: The CD starts to turn at the maximum speed after a few secondes.
CURE: Check soldering of J9836.
MODEL: AZ8040
SYMPTOM: CD part totally inoperative. Sometimes strange digits on display.
CURE: Check soldering points of micro controller IC7250.
MODEL: AZ8040
SYMPTOM: The reception of the radio part is not OK.
CURE: Check soldering points of IC 7103.
MODEL: AZ8040
SYMPTOM: The focus operation is not OK.
CURE: Check servo IC7811
MODEL: AZ8040
SYMPTOM: Sometimes the CD player does not read the TOC.
CURE: Check connection/soldering of pin 19 of IC7811.
MODEL: AZ8040
SYMPTOM: Motor of cassette speeds up spontaneously.
CURE: Shortcircuit of wire-end to motor housing.
MODEL: AZ8040
SYMPTOM: Cassette buttons get jammed.
CURE: This fault is caused by the Cassette buttons which might get jammed because the mounting screw near the record button is missing. To solve this fault mount screw in case it is missing.
MODEL: AZ8040
SYMPTOM: Recording distortion is too high.
CURE: Reduce the value of resistor item 3771. For AZ8040, 3771 has been changed into 82k. For AZ8140, 3771 has been changed into 100k.
MODEL: AZ8040
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: AZ8040
SYMPTOM: Service hint
CURE: Service hint The surface of the volume knob is so slippery that it is nearly impossible to remove it without help of tools. A flat-tip screw-driver must be used. Insert the screw driver into the gap between the cabinet and the knob and remove the knob by leverage. A cloth is suggested to protect the surface of the cabinet from scrapping.
MODEL: AZ8040
SYMPTOM: Spare part information
CURE: Spare part information The separate cassette buttons will not be supplied when the stock in Consumer Service has run out. Cassette buttons will be delivered in a set. The service codes for the various cassette button sets are: 4822 410 63377 for AZ8040 and AZ8240 4822 410 63378 for AZ8140
MODEL: AZ8040
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: AZ8040
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: AZ8040
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: AZ8040
SYMPTOM: Tools
CURE: Tools - To disassemble the rear cabinet use the following tools: Universal tool holder4822 395 91019 Torx bit T10 150mm 4822 395 50456
MODEL: AZ8040
SYMPTOM: Correction service manual
CURE: Correction service manual 4822 725 25111 and 4822 725 25112 - On page 12 the circuit diagram of combi board, the item no. of the choke coil connected between the AC socket 1305 and the power transformer is wrong. It should read 5301. 5300 should be the item no. of the power transformer. Only in version AZ8040/21 the choke coil 5301 with service code 4822 157 70003 has been mounted. REMARKS : In all other versions jumpers 9312 and 9311 are applied.
MODEL: AZ8040
SYMPTOM: Codenumber information
CURE: Codenumber information The service code for pos 201 is 4822 420 60115.
MODEL: AZ8040
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8048
SYMPTOM: No CD function, CD part has no +5V power supply.
CURE: Problem is caused by the heat sink of Q8 which causes a short circuit between the mass side of R6 and the collector of Q8. This fault can be solved by removing the resistor R6 from component side to copper track side. This solution has been applied in production too, as a temporary solution. REMARKS : This sympthom/cure is only valid for sets with production code KY00. In these sets CDM12.1 and concerned Philips ICs have been applied. From week 9537 onwards the printed board has been modified to locate R6 away from the heat sink.
MODEL: AZ8048
SYMPTOM: The cassette tape is damaged by the tape deck mechanism.
CURE: On the cassette door, the plastic spring plate is deformed due to moulding tolerance.The cassette thus may not sit properly on the deck mechanism.The door (item 2; 4822 443 64436) has to be replaced. REMARKS : Check point has been added at the parts supplier as well as in the production.From week 9544 onwards, tooling has been modified to strengthen the construction of the spring plate in the cassette door.
MODEL: AZ8048
SYMPTOM: The CD cannot play back any disc.
CURE: Check wiring to the sledge motor.
MODEL: AZ8048
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In service manual the CD door switch, item 90 on page 9, has been published on page 10a, under Electrical partslist Miscellaneous: itemservice codenumberdescription CD sw 4822 278 90739Quick sw. LS-323-0
MODEL: AZ8048
SYMPTOM: Codenumber TDA7073AT
CURE: Codenumber TDA7073AT 5322 209 32077.
MODEL: AZ8048
SYMPTOM: Modification
CURE: Modification From October 1995 onwards, with factory code starting from KY0295, new CD Deck Mechanism and Chassis are used. More details are published in Service Information A95-578 REMARKS : This publication is followed by Service Information A95-578
MODEL: AZ8048
SYMPTOM: Service Manual, mechanical partslist
CURE: Service Manual, mechanical partslist Add to mechanical parts list: The mounting screw (item 101) for new CD Mechanism KSM-2101BDM, is available via service code 4822 502 21383.
MODEL: AZ8049
SYMPTOM: No CD function, CD part has no +5V power supply.
CURE: Problem is caused by the heat sink of Q8 which causes a short circuit between the mass side of R6 and the collector of Q8. This fault can be solved by removing the resistor R6 from component side to copper track side. This solution has been applied in production too, as a temporary solution. REMARKS : This sympthom/cure is only valid for sets with production code KY00. In these sets CDM12.1 and concerned Philips ICs have been applied. From week 9537 onwards the printed board has been modified to locate R6 away from the heat sink.
MODEL: AZ8049
SYMPTOM: Distorted sound from right channel in position CD
CURE: Check signal processor IC102 (LC7861NE).
MODEL: AZ8049
SYMPTOM: The cassette door damper gear (item 14) moves out easily.
CURE: The cassette door (item 2; 4822 443 64542) has been modified by adding a rib to prevent the gear from moving off. REMARKS : New Doors are used in production with sets marked KY02 from week 9604 onwards. Consumer Service stock has been adapted.
MODEL: AZ8049
SYMPTOM: Modification
CURE: Modification From September 1995 onwards, with factory code starting from KY0195, new CD Deck Mechanism and Main board are used. More details are published in Service Information A95-571 REMARKS : This publication is followed by Service Information A95-571
MODEL: AZ8050
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 and 3265 from 150k to 330k (4822 116 52272) 2) Change 3266 and 3267 from 180k to 6.8k (4822 116 52296) 3) Change 2258 and 2259 from 390pF to 4.7nF (4822 126 11714) 4) Remove 2282 (4822 126 11585) and connect it from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 5) Remove 2275 (4822 126 11585) and connect it from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8050
SYMPTOM: CD does not work and the CDM tilted.
CURE: CDM tilted due to CDM Holder (pos. 440), which came out of its position.The fault can be caused by heavy dropping of the set. The problem can be solved by fixing the Holder again carefully. We suggest to add a metal plain washer of external diameter 9 mm on the top of the Holder and to use a screw with a length of 8 mm to 10 mm. REMARKS : Washer had been added in production from week 9724 onwards.
MODEL: AZ8050
SYMPTOM: Spare part information
CURE: Spare part information For sets produced before October 1995, using COMBI A03 board, the microprocessor IC 7800 (original 4822 209 90147) is replaced by OTP version.Service codenumber is 4822 900 11116.
MODEL: AZ8050
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8050
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8050
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8050
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8050
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8050
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8050
SYMPTOM: Modification
CURE: Modification This information is only valid for AZ805./..D, AZ8061/..D and AZ8070. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the Combi A4- board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ8051
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 and 3265 from 150k to 330k (4822 116 52272) 2) Change 3266 and 3267 from 180k to 6.8k (4822 116 52296) 3) Change 2258 and 2259 from 390pF to 4.7nF (4822 126 11714) 4) Remove 2282 (4822 126 11585) and connect it from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 5) Remove 2275 (4822 126 11585) and connect it from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8051
SYMPTOM: Hum from both loudspeakers (R&L), independent from volume setting.
CURE: Check soldering around C2261.
MODEL: AZ8051
SYMPTOM: CD does not work and the CDM tilted.
CURE: CDM tilted due to CDM Holder (pos. 440), which came out of its position.The fault can be caused by heavy dropping of the set. The problem can be solved by fixing the Holder again carefully. We suggest to add a metal plain washer of external diameter 9 mm on the top of the Holder and to use a screw with a length of 8 mm to 10 mm. REMARKS : Washer had been added in production from week 9724 onwards.
MODEL: AZ8051
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8051
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8051
SYMPTOM: Modification
CURE: Modification This information is only valid for AZ805./..D, AZ8061/..D and AZ8070. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the Combi A4- board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ8051
SYMPTOM: New version AZ8051/11H
CURE: New version AZ8051/11H For Region Hongkong the new version AZ8051/11H will be introduced. For further repair information see Service Manual AZ8050, AZ8051, AZ8052, AZ8150 (4822 725 24954). Difference to AZ8051/01: mains cord 4822 321 10886
MODEL: AZ8051
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8051
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8051
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8051
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8051
SYMPTOM: Spare part information
CURE: Spare part information For sets produced before October 1995, using COMBI A03 board, the microprocessor IC 7800 (original 4822 209 90147) is replaced by OTP version.Service codenumber is 4822 900 11116.
MODEL: AZ8051
SYMPTOM: Correction to mechanical partslist
CURE: Correction to mechanical partslist The service codenumber of the Ornamental Foils of blue versions have to be: 4822 466 10744FOIL ORNAMENTAL, LEFT 4822 466 10743FOIL ORNAMENTAL, RIGHT
MODEL: AZ8052
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 and 3265 from 150k to 330k (4822 116 52272) 2) Change 3266 and 3267 from 180k to 6.8k (4822 116 52296) 3) Change 2258 and 2259 from 390pF to 4.7nF (4822 126 11714) 4) Remove 2282 (4822 126 11585) and connect it from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 5) Remove 2275 (4822 126 11585) and connect it from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8052
SYMPTOM: Crackling noise (servo noise) in left speaker during CD play mode.
CURE: Add 2 wire connections on Feature/Amplifier-board 2. 1 wire between Ground of potmeter and Emitter 7261 and 1 wire between Emitter 7262 and Emitter 7260. REMARKS : Phenomenon occurs only in sets with layout stage .5 of Feature/Amplifier-board 2. From about production week 9531 onwards the 2 wires have been implemented in production.
MODEL: AZ8052
SYMPTOM: No sound from tape deck
CURE: Check diode D6254
MODEL: AZ8052
SYMPTOM: No laser emission, disc does not turn
CURE: Short circuit by bad soldering of black wire which makes short circuit with CN1807.
MODEL: AZ8052
SYMPTOM: CD player stops playing after some time.
CURE: Check soldering of IC7801.
MODEL: AZ8052
SYMPTOM: The set does produce a squeaking sound at all sources
CURE: Check/replace IC7250 (AN7318S; 4822 209 32918).
MODEL: AZ8052
SYMPTOM: Disc touches the cabinet; CD mechanism tilted.
CURE: Remount CD mechanism holder pos.440.
MODEL: AZ8052
SYMPTOM: Ticking sound from RCD after switching on the CD part.
CURE: Sledge motor doesn't stop at inner position because end switch is bended.
MODEL: AZ8052
SYMPTOM: CD does not work and the CDM tilted.
CURE: CDM tilted due to CDM Holder (pos. 440), which came out of its position.The fault can be caused by heavy dropping of the set. The problem can be solved by fixing the Holder again carefully. We suggest to add a metal plain washer of external diameter 9 mm on the top of the Holder and to use a screw with a length of 8 mm to 10 mm. REMARKS : Washer had been added in production from week 9724 onwards.
MODEL: AZ8052
SYMPTOM: CD player does read in, but does not playback.
CURE: Remount CD mechanism pos.440.
MODEL: AZ8052
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8052
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8052
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8052
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8052
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8052
SYMPTOM: Modification
CURE: Modification This information is only valid for AZ805./..D, AZ8061/..D and AZ8070. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the Combi A4- board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ8052
SYMPTOM: Spare part information
CURE: Spare part information For sets produced before October 1995, using COMBI A03 board, the microprocessor IC 7800 (original 4822 209 90147) is replaced by OTP version.Service codenumber is 4822 900 11116.
MODEL: AZ8052
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8055
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8055
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8055
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical part is now available. Pos. 5224822 410 11912Volume Up/Dn Button
MODEL: AZ8055
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8055
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8055
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8055
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8055
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8055
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 7) will be implemented in production from week 9641.
MODEL: AZ8055
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8056
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8056
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8056
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8056
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8056
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8056
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical part is now available. Pos. 5224822 410 11912Volume Up/Dn Button
MODEL: AZ8056
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 7) will be implemented in production from week 9641.
MODEL: AZ8056
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8056
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8056
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8057
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8057
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8057
SYMPTOM: Remote receiver inoperative.
CURE: Capacitor C2901 (C470pF) short circuited.
MODEL: AZ8057
SYMPTOM: Hum audible in audio signal when using mains supply
CURE: Check soldering of capacitor C2292.
MODEL: AZ8057
SYMPTOM: The end switch does not detect the sledge
CURE: The end switch SW1004 is bent. Replace the end switch (4822 276 12163).
MODEL: AZ8057
SYMPTOM: Does not play the last tracks of a disc.
CURE: Check spring for the linear toothed bar; might be loose. If so, remount spring.
MODEL: AZ8057
SYMPTOM: Laser does not burn.
CURE: Check connectors to optical unit.
MODEL: AZ8057
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8057
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8057
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8057
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 7) will be implemented in production from week 9641.
MODEL: AZ8057
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical part is now available. Pos. 5224822 410 11912Volume Up/Dn Button
MODEL: AZ8057
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8057
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8057
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8061
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 and 3265 from 150k to 330k (4822 116 52272) 2) Change 3266 and 3267 from 180k to 6.8k (4822 116 52296) 3) Change 2258 and 2259 from 390pF to 4.7nF (4822 126 11714) 4) Remove 2282 (4822 126 11585) and connect it from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 5) Remove 2275 (4822 126 11585) and connect it from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8061
SYMPTOM: CD does not work and the CDM tilted.
CURE: CDM tilted due to CDM Holder (pos. 440), which came out of its position.The fault can be caused by heavy dropping of the set. The problem can be solved by fixing the Holder again carefully. We suggest to add a metal plain washer of external diameter 9 mm on the top of the Holder and to use a screw with a length of 8 mm to 10 mm. REMARKS : Washer had been added in production from week 9724 onwards.
MODEL: AZ8061
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8061
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8061
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8061
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8061
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8061
SYMPTOM: Service Manual, electrical partslist
CURE: Service Manual, electrical partslist The service ordernumber for item 444 BUTTON SET CD 482241063658 as already published in the Service Manual concerns a standardized black coloured part. On special request the original green metallic lacquered button set has been taken on stock. This part can be ordered with service code number 4822 410 10802 button set CD green metallic
MODEL: AZ8061
SYMPTOM: Modification
CURE: Modification This information is only valid for AZ805./..D, AZ8061/..D and AZ8070. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the Combi A4- board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ8068
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8068
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8068
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 7) will be implemented in production from week 9641.
MODEL: AZ8068
SYMPTOM: Service Manual, electrical partslist
CURE: Service Manual, electrical partslist The service ordernumber for item 444 BUTTON SET CD 482241063658 as already published in the Service Manual concerns a standardized black coloured part. On special request the original green metallic lacquered button set has been taken on stock. This part can be ordered with service code number 4822 410 10802 button set CD green metallic
MODEL: AZ8068
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical part is now available. Pos. 5224822 410 11912Volume Up/Dn Button
MODEL: AZ8068
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8068
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8068
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8068
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8070
SYMPTOM: Turntable motor runs continuously when CD is selected.
CURE: Check/replace IC7805.
MODEL: AZ8070
SYMPTOM: CD does not work and the CDM tilted.
CURE: CDM tilted due to CDM Holder (pos. 440), which came out of its position.The fault can be caused by heavy dropping of the set. The problem can be solved by fixing the Holder again carefully. We suggest to add a metal plain washer of external diameter 9 mm on the top of the Holder and to use a screw with a length of 8 mm to 10 mm. REMARKS : Washer had been added in production from week 9724 onwards.
MODEL: AZ8070
SYMPTOM: Modification
CURE: Modification This information is only valid for AZ805./..D, AZ8061/..D and AZ8070. To improve the CD playability, the motor on the CD Drive is changed to type RF-310T.The service codenumber of the CD Drive becomes 4822 691 10656.To match with this modification, following components on the Combi A4- board should be changed. 28204822 121 5139947nF 10% 50V 38554822 116 5228447k 5% 0.16W REMARKS : Modification is implemented in production from week 9741 onwards
MODEL: AZ8070
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8070
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8070
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8075
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8075
SYMPTOM: Codenumber information
CURE: Codenumber information The Pinch Roller Arm Assembly (items 10 + 11 +12) on the cassette mechanism is now available under service code 4822 528 11189.
MODEL: AZ8075
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8075
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical part is now available. Pos. 5224822 410 11912Volume Up/Dn Button
MODEL: AZ8084
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ8085
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ8086
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ8087
SYMPTOM: Correction to the Service Manual
CURE: The codenumber of the DBB Knob (item 409) is wrong. It should read 4822 410 12536.
MODEL: AZ8100
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8101
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8102
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8110
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8110
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8110
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8110
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8114
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8114
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - page 13 The wire connection 8010 should be read as 8053.This wire 8053 is acting as Ground counter balance to improve FM reception, therefore it is not connected on the other end.
MODEL: AZ8114
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8114
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8114
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8140
SYMPTOM: The track button is inoperative.
CURE: The track to the next button is broken near the island.
MODEL: AZ8140
SYMPTOM: Very loud humming sound from cass. part
CURE: Check soldering points of IC7700
MODEL: AZ8140
SYMPTOM: No sound from the CD part, radio and cassette are OK.
CURE: Check soldering points around IC7851
MODEL: AZ8140
SYMPTOM: CD player sometimes gives error.
CURE: Check soldering of pin 67-71 of IC7851 and C2580.
MODEL: AZ8140
SYMPTOM: Motor winding noise in LW mode.
CURE: Add a capacitor 2780 470uF/16V (4822 124 40198) across the motor (+/-). REMARKS : Introduced in production.
MODEL: AZ8140
SYMPTOM: The CD part is humming and the laser does not burn.
CURE: Check IC7250 (apply sufficient heat sink compound).
MODEL: AZ8140
SYMPTOM: The CD part does not produce any audio signal for most of the time.
CURE: Check soldering points of decoder IC (7851).
MODEL: AZ8140
SYMPTOM: The CD part stops playing after some time.
CURE: Check soldering points of IC 7851.
MODEL: AZ8140
SYMPTOM: Sometimes the CD part does not start playing.
CURE: Check capacitor C2889 for internal interruption.
MODEL: AZ8140
SYMPTOM: The CD part is sometimes inoperative.
CURE: Check if connector 1801 is mounted correctly.
MODEL: AZ8140
SYMPTOM: CD player sometimes gives error.
CURE: Check soldering of pin 67-71 of IC7851 and C2580.
MODEL: AZ8140
SYMPTOM: Cassette buttons get jammed.
CURE: This fault is caused by the Cassette buttons which might get jammed because the mounting screw near the record button is missing. To solve this fault mount screw in case it is missing.
MODEL: AZ8140
SYMPTOM: Recording distortion is too high.
CURE: Reduce the value of resistor item 3771. For AZ8040, 3771 has been changed into 82k. For AZ8140, 3771 has been changed into 100k.
MODEL: AZ8140
SYMPTOM: Spare part information
CURE: Spare part information The separate cassette buttons will not be supplied when the stock in Consumer Service has run out. Cassette buttons will be delivered in a set. The service codes for the various cassette button sets are: 4822 410 63377 for AZ8040 and AZ8240 4822 410 63378 for AZ8140
MODEL: AZ8140
SYMPTOM: Correction service manual
CURE: Correction service manual 4822 725 25111 and 4822 725 25112 - On page 12 the circuit diagram of combi board, the item no. of the choke coil connected between the AC socket 1305 and the power transformer is wrong. It should read 5301. 5300 should be the item no. of the power transformer. Only in version AZ8040/21 the choke coil 5301 with service code 4822 157 70003 has been mounted. REMARKS : In all other versions jumpers 9312 and 9311 are applied.
MODEL: AZ8140
SYMPTOM: Tools
CURE: Tools - To disassemble the rear cabinet use the following tools: Universal tool holder4822 395 91019 Torx bit T10 150mm 4822 395 50456
MODEL: AZ8140
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8140
SYMPTOM: Service hint
CURE: Service hint The surface of the volume knob is so slippery that it is nearly impossible to remove it without help of tools. A flat-tip screw-driver must be used. Insert the screw driver into the gap between the cabinet and the knob and remove the knob by leverage. A cloth is suggested to protect the surface of the cabinet from scrapping.
MODEL: AZ8150
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 and 3265 from 150k to 330k (4822 116 52272) 2) Change 3266 and 3267 from 180k to 6.8k (4822 116 52296) 3) Change 2258 and 2259 from 390pF to 4.7nF (4822 126 11714) 4) Remove 2282 (4822 126 11585) and connect it from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 5) Remove 2275 (4822 126 11585) and connect it from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8150
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8150
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8150
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8150
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8210
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AZ8210
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8210
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8210
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8210
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8214
SYMPTOM: RR RECII deck tape transports have a Ticking noise in playback.
CURE: In some production batches it occurred that there is grease on the stop lever, item 69, mounted in deck A. This grease causes a movement of slide item 90. This slide snaps back after being moved a little and causes a ticking noise. This can be solved by removing the grease from stop lever item 69 of deck A.
MODEL: AZ8214
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 443 and 441. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8214
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8214
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8214
SYMPTOM: Correction
CURE: Correction In the RCD board layout the alignment point 2 and 9 are interchanged.The correct information should be: - point 2 must be point 9 and - point 9 must be point 2. REMARKS: Please update your service documents.
MODEL: AZ8240
SYMPTOM: CD does not function
CURE: Check/replace CDM (4822 691 30327)
MODEL: AZ8240
SYMPTOM: The CD part gives Error
CURE: Check soldering of R3805 and IC7801.
MODEL: AZ8240
SYMPTOM: The CD part gives Error
CURE: Check for interruption pin 28 of IC7811. Check C2825
MODEL: AZ8240
SYMPTOM: Motor winding noise in LW mode.
CURE: Add a capacitor 2780 470uF/16V (4822 124 40198) across the motor (+/-). REMARKS : Introduced in production.
MODEL: AZ8240
SYMPTOM: Play back sound of taperecorder is OK, but no CD either radio sound.
CURE: Dry joints in regulator-IC7250 (LM2940CT) pins .
MODEL: AZ8240
SYMPTOM: After 2 hours, the CD stops and givesERR
CURE: Check/replace IC 7851 and C2843.
MODEL: AZ8240
SYMPTOM: Service hint
CURE: Service hint The surface of the volume knob is so slippery that it is nearly impossible to remove it without help of tools. A flat-tip screw-driver must be used. Insert the screw driver into the gap between the cabinet and the knob and remove the knob by leverage. A cloth is suggested to protect the surface of the cabinet from scrapping.
MODEL: AZ8240
SYMPTOM: Spare part information
CURE: Spare part information The separate cassette buttons will not be supplied when the stock in Consumer Service has run out. Cassette buttons will be delivered in a set. The service codes for the various cassette button sets are: 4822 410 63377 for AZ8040 and AZ8240 4822 410 63378 for AZ8140
MODEL: AZ8240
SYMPTOM: Tools
CURE: Tools - To disassemble the rear cabinet use the following tools: Universal tool holder4822 395 91019 Torx bit T10 150mm 4822 395 50456
MODEL: AZ8240
SYMPTOM: Correction Service Manual 4822 725 25113
CURE: Correction Service Manual 4822 725 25113 On page 8 the circuit diagram of combi board, the item no. of the power transformer should read 5300.
MODEL: AZ8245
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8245
SYMPTOM: Totally inoperative.
CURE: The hanging state may be caused by a high voltage spike to the IC TC9153AP. To solve the problem, add a resistor of 470 Ohm (service code number: 4822 116 52224) from pin 8 of TC9153AP to ground. Description of the phenomenon: Once the volume control is inoperative this state will be maintained by the set for about 48 hours because of a backup capacitor on the integrated circuit. A hanging set can be reset as follows: -switch the set to off mode and do not operate tapedeck. -press the volume-up button for 4 minutes. This will discharge the backup capacitor and the set will return to normal operation once it is switched on again. REMARKS : As sets AZ8245, AZ8250 is out of production, this modification is not applied in production, but it should be applied in each set offered for repair. Sets AZ8345, AZ8350 from production week 9443 onwards this resistor has been built-in.
MODEL: AZ8245
SYMPTOM: No CD or radio function. Only cass. motor is functioning. No sound.
CURE: Capacitor C2459 bended and makes contact with R3899.
MODEL: AZ8245
SYMPTOM: Right channel no sound, only hum.
CURE: Track island of C2538 broken of, connection of C2538 repaired.
MODEL: AZ8245
SYMPTOM: CD player inoperative when you turn the set upside down.
CURE: Press plug 1704 (+9V. power supply) completely into connector.
MODEL: AZ8245
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the CD2 electrical partslist, the service code of the IC 7403 ST24C01CB1 should read 4822 209 31508.
MODEL: AZ8250
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8250
SYMPTOM: Totally inoperative.
CURE: The hanging state may be caused by a high voltage spike to the IC TC9153AP. To solve the problem, add a resistor of 470 Ohm (service code number: 4822 116 52224) from pin 8 of TC9153AP to ground. Description of the phenomenon: Once the volume control is inoperative this state will be maintained by the set for about 48 hours because of a backup capacitor on the integrated circuit. A hanging set can be reset as follows: -switch the set to off mode and do not operate tapedeck. -press the volume-up button for 4 minutes. This will discharge the backup capacitor and the set will return to normal operation once it is switched on again. REMARKS : As sets AZ8245, AZ8250 is out of production, this modification is not applied in production, but it should be applied in each set offered for repair. Sets AZ8345, AZ8350 from production week 9443 onwards this resistor has been built-in.
MODEL: AZ8250
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the CD2 electrical partslist, the service code of the IC 7403 ST24C01CB1 should read 4822 209 31508.
MODEL: AZ8262
SYMPTOM: No display or radio when lifting the set by its carrying handle.
CURE: Check for short circuit between leads of C2843.
MODEL: AZ8262
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8262
SYMPTOM: Set inoperative, no sound, only hum.
CURE: Sometimes the mass shield of the display is making short circuit with jumper 9811.
MODEL: AZ8262
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8262
SYMPTOM: Correction to Newsletter PA97.05.06
CURE: Correction to Newsletter PA97.05.06 : - 4822 459 04783 is not the Front Cabinet of AZ8262 and AZ8267. There is no Front Cabinet available for AZ8262 and AZ8267.
MODEL: AZ8262
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 8) will be implemented in production from week 9642.
MODEL: AZ8262
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8262
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8262
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8262
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8262
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8262
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical parts are now available. Pos. 5224822 410 11912Volume Up/Dn Button Pos. 5234822 410 11913Tuning Up/Dn Button
MODEL: AZ8267
SYMPTOM: Set totally inoperative. No sound, no display. No +up at pin 58
CURE: Check for short circuit between jumper 9811 and copper foil from display.
MODEL: AZ8267
SYMPTOM: No reaction from remote control.
CURE: Check/replace C2901, 470pF, on IR-eye board.
MODEL: AZ8267
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8267
SYMPTOM: CD optical pick-up sledge moves to wrong side and rattles. No display.
CURE: Short circuit from foil (display) to components on mainboard.
MODEL: AZ8267
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8267
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical parts are now available. Pos. 5224822 410 11912Volume Up/Dn Button Pos. 5234822 410 11913Tuning Up/Dn Button
MODEL: AZ8267
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8267
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8267
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8267
SYMPTOM: Correction to Newsletter PA97.05.06
CURE: Correction to Newsletter PA97.05.06 : - 4822 459 04783 is not the Front Cabinet of AZ8262 and AZ8267. There is no Front Cabinet available for AZ8262 and AZ8267.
MODEL: AZ8267
SYMPTOM: Spare part information
CURE: Spare part information The Front Cabinet (item 504) is now available via following service codenumbers : 4822 459 04782Front cabinet (Silver) 4822 459 04783Front Cabinet (Dark Grey)
MODEL: AZ8267
SYMPTOM: Service Manual correction
CURE: Service Manual correction - Correction EXPLODED VIEW / drawing 1 page 8-1: Description and position numbers 448 (knob slide MODE) and 449 (knob slide BAND) are interchanged in the Exploded View/drawing 1 of the service manuals. The drawn position of item number 448 should read Knob slide Band and item number 449 should read knob slide MODE. In the partslist the service code numbers and descriptions are correct. Ordering 4822 411 61999 will deliver knob slide MODE Ordering 4822 411 62001 or 4822 411 62003 will deliver the desired knob slide BAND
MODEL: AZ8267
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 8) will be implemented in production from week 9642.
MODEL: AZ8268
SYMPTOM: Codenumber information
CURE: Codenumber information The Recording Lever (pos. 506) is now available with service code number 4822 402 10651.
MODEL: AZ8289
SYMPTOM: Recording is unstable.
CURE: Problem is caused by high notes appearing in the music after the ALC-elco has been almost fully charged.The recording amplifier has high amplification for high notes and will thus intensify the problem. Following steps give a service solution. 1) Change 3264 from 150k to 330k (4822 051 20334) 2) Change 3265 from 150k to 330k (4822 116 52272) 3) Change 3266 from 180k to 6.8k (4822 051 20682) 4) Change 3267 from 180k to 6.8k (4822 116 52296) 5) Change 2258 from 390pF to 4.7nF (4822 126 11714) 6) Change 2259 from 390pF to 4.7nF (4822 126 10223) 7) Remove 2282 and replace it by tubular cap. (4822 126 11585) connected from pin 3 of IC 7250 to the nodal point of 3264, 3266 and 2258. 8) Remove 2275 and replace it by tubular cap. (4822 126 11585) connected from pin 14 of IC 7250 to the nodal point of 3265, 3267 and 2259. REMARKS : Above modification will be implemented in production from week 9626 onwards.
MODEL: AZ8289
SYMPTOM: The set give a whistling sound when playing a disc
CURE: It sounds like a mechanical oscillation. Fault is caused by a peak in the gain response curve of the track servo amplifier at about 15 kHz. This is far above the bandwidth of 1.5 kHz. This does not influence the behaviour of the track servo itself, but causes mechanical noise produced by the pick-up. The lay-out of combi-board has been modified. With the modified board C2859 and C2858 have been added and the mechanical noise has been reduced by 5 dB. AZ8055,AZ8056, AZ8057: The modified board is marked .4 and has been introduced in week 9552. AZ8262, AZ8267, AZ8289: The modified board is marked .5 and has been introduced in week 9601. Service solution for sets without modified boards: Add a capacitor of 2n7 in parallel to R3826 (4822 126 12148).
MODEL: AZ8289
SYMPTOM: Modification
CURE: Modification For solving recording unstable problem, new Combi PCB (issue 8) will be implemented in production from week 9642.
MODEL: AZ8289
SYMPTOM: Codenumber information
CURE: Codenumber information The following mechanical parts are now available. Pos. 5224822 410 11912Volume Up/Dn Button Pos. 5234822 410 11913Tuning Up/Dn Button
MODEL: AZ8289
SYMPTOM: Modification
CURE: Modification During production, the Clamper Disc Assembly is changed. Followings are the service codes of the two Clamper Disc assemblies. Original Clamper Disc Assembly (Soft disc) : Item 4074822 532 51871Pressure Ring Assy Item 4114822 535 60096Disc New Clamper Disc Assembly (hard disc) : Item 4074822 532 12412Pressure Ring Assy Item 4114822 466 93464Disc REMARKS : Both Clamper Disc Assemblies will be used in production.
MODEL: AZ8294
SYMPTOM: Failure to record from CD after approximately 10 minutes.
CURE: It has been found that when recording from CD on the above model the recording may cease after approximately 10 minutes.This fault is caused by a lack of supply voltage to the microprocessor Q150 and will occur if the memory backup batteries are missing or defective. There are two solutions to the problem: 1. Fit two new R6 batteries in the memory backup position and switch the set to RADIO mode for approximately 2 seconds. 2. Connect a diode (1N4148) in parallel with R294 (330K).The anode of the diode is connected to pins 3 and 4 of the mode selector switch A286. The part number of a 1N4148 diode is 4822 130 30621.
MODEL: AZ8294
SYMPTOM: Improved type of compact disc hold down
CURE: Improved type of compact disc hold down - In the above models the CD is clamped to the deck turntable by means of a magnetic hold down contained in the lid to the CD deck mechanism. Some sets were produced with a disc hold down which contacted the disc with a hard plastic ring.It has been found that this type of material can cause damage to the disc.To overcome the problem a ring manufactured from soft foam rubber is now available under code no. 4822 529 10258. The original ring can be replaced as follows: 1) Remove the complete lid assembly containing the hold down as shown in the diagram.Start by gently levering the left hand support inwards and upwards. 2) Carefully peel off the plastic ring with a sharp knife. 3) Fit a new self-adhesive foam ring. 4) Replace the lid back in the set.
MODEL: AZ8294
SYMPTOM: Memory back up batteries damaged and leaking
CURE: Memory back up batteries damaged and leaking It has been found in a few instances that diode D280 (ISS106) in series with the memory back up battery supply has become short circuit.This will result in a current being passed through both batteries leading to overheating and damage. Resistor R294 (330K) has been replaced in production by a 1N4148 diode. This diode, together with fuse A605 (1.6AT) may also have failed if D280 has become short circuit.It is therefore recommended that D280 is changed to a 1N4002 in sets received for service fitted with a 1SS106 in this position.The part number of a 1N4002 diode is 4822 130 30684. Later sets have the following changes.From production week 8943 D280 was changed to a 1N4148.From production week 8944 onwards a 4K7 resistor has been added in series with the back up batteries and a capacitor of 4.7uF 63 volts connected across the DC output of the bridge rectifier D605.
MODEL: AZ8297
SYMPTOM: Correction Service Manual, Mechanical partslist
CURE: Correction Service Manual, Mechanical partslist - The correct Service code number for mains socket IEC reads 4822 265 20318.
MODEL: AZ8300
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8300
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51059
MODEL: AZ8300
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8300
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone and CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (item 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1514, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622. Transistors:7505 and 7555
MODEL: AZ8300
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8300
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8301
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51059
MODEL: AZ8301
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8301
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone and CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (item 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1514, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622. Transistors:7505 and 7555
MODEL: AZ8301
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8301
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8301
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8304
SYMPTOM: Very loud buzzing and whistling, more severe on left hand channel.
CURE: If speakers disconnected and unit listened to through headphones, fault clears.One of the speakers might be short-circuited.
MODEL: AZ8304
SYMPTOM: Excessive mechanical noise and distortion on CD
CURE: It has been found that some sets have excessive mechanical noise, and distortion when playing a CD.The fault symptoms may clear if extra pressure is applied to the CD lid. To overcome the problem an additional self adhesive felt ring should be placed over the existing ring on the disc hold down (item 469 in the service manual diagram). The additional ring is supplied under part number 4822 532 52514.
MODEL: AZ8304
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8304
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8304
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone and CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (item 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1514, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622. Transistors:7505 and 7555
MODEL: AZ8304
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8304
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51059
MODEL: AZ8304
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8310
SYMPTOM: Occassionally crackling sound in deck A on play back mode.
CURE: Check connector CNS-109. Solder the wires directly to PCB.
MODEL: AZ8310
SYMPTOM: Service Manual, Mechanical partslist
CURE: Service Manual, Mechanical partslist: - The CD lens cover bracket (item 75 in exploded view diagram on page 18) is now available via service code 4822 402 10201.
MODEL: AZ8310
SYMPTOM: Modification
CURE: Modification From week 9510 onwards, a new CD chassis (decoder board and control board) is used because the old CD chassis is no longer supplied. The copper track of the CD board has been thickened to improve solder quality. At the same time the power amplifier IC (IC7) is changed from LA4597 to TA8238K Service information A95-555 (4822 725 25386) is published to introduce new circuit diagram, Printed Circuit Board layout diagram, alignment and partslist. REMARKS : Modified sets can be recognized by changed factory code: KZ02 (serial number KZ029510xxxxx). This publication will be followed by Service Information A95-555.
MODEL: AZ8310
SYMPTOM: Codenumber information
CURE: Codenumber information The CD cushion (4822 466 93447) is replaced by the following two codenumbers : 4822 466 93498Cushion (hard) 4822 466 93499Cushion (soft) The two cushions near the motors are harder.
MODEL: AZ8310
SYMPTOM: Modification
CURE: Modification In course of production the potentiometers VR1, VR4, VR5 and VR6 have been changed. The new potentiometers are available via following service codenumbers: VR1 : 4822 101 11373 VR4 to VR6 : 4822 105 11133 REMARKS : The potentiometers can be distinguished by their pin layout: Old potentiometers : 4 pins in 1 row New potentiometers : 4 pins in 2 rows
MODEL: AZ8310
SYMPTOM: Codenumber information
CURE: Codenumber information The Handle Bracket Left (4822 498 10501) is no longer available. We suggest to use Handle Bracket Right (pos.36; 4822 498 10502) as a substitute.The stopper end has to be cut. REMARKS : See also service newsletter issue PA98.05.
MODEL: AZ8320
SYMPTOM: Incomplete erase on chrome tape during recording.
CURE: The problem is due to erasing with permanent magnet (ie. inherent in the design). Therefore, chrome tapes are not recommended to be used with these sets.
MODEL: AZ8320
SYMPTOM: Humming sound from the deck
CURE: Check whether the deck switch wire stucks between the cabinet and the chassis.
MODEL: AZ8320
SYMPTOM: Skips tracks. Gives ERROR sometimes.
CURE: Check RCD and adjust CD part, focus-gain and focus-offset.
MODEL: AZ8320
SYMPTOM: In CD-mode the CD stops after some time.
CURE: Check processor IC7901 (4822 209 31144).
MODEL: AZ8320
SYMPTOM: Sometimes scratching sound from the CD
CURE: Check whether the RCD suspension has been mounted correctly.
MODEL: AZ8320
SYMPTOM: Set does not erase chrome and metal tapes.
CURE: Set only suitable to erase ferro tapes (concept of the set).
MODEL: AZ8320
SYMPTOM: No sound Deck A
CURE: Check the position of record/playback lever.
MODEL: AZ8320
SYMPTOM: Humming sound from both decks.
CURE: Deck switch wire stuck between casing and deck. Remount wire.
MODEL: AZ8320
SYMPTOM: Codenumber modification
CURE: Codenumber modification - The service codenumber for coil 5108 (AM oscillator) has been changed to 4822 157 70696
MODEL: AZ8320
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8320
SYMPTOM: Spare part information
CURE: Spare part information IC 7861 should be 4822 209 32421 (TDA1311A/N2) instead of 4822 209 31147 (AZ8320/00/05) or 4822 209 32196 (AZ8320/01/10).
MODEL: AZ8320
SYMPTOM: Codenumber correction
CURE: Codenumber correction - The service code for switch 1550 should be 4822 277 21773 instead of 4822 277 21595.
MODEL: AZ8320
SYMPTOM: Codenumber information
CURE: Codenumber information The service code for switch 1550 should be 4822 277 21773 instead of 4822 277 21595.
MODEL: AZ8320
SYMPTOM: Cabinet Partslist
CURE: Cabinet Partslist - Items 286, 287 and 288 for both sets are from now on delivered as an assembly. That means that delivered front has mounted grills (left and right). Service codenumber reads: 4822 423 51166.
MODEL: AZ8340
SYMPTOM: IC HEF4952, item 7716 on combi board, has been burnt.
CURE: The voltage at pin 10 of this IC (item 7716, 4822 209 32919) is too high. To protect this component, add a diode, item 6728, of type 1N4148 (4822 130 30621) in series with resistor 3751 and supply A. Anode of this diode connected to supply A, cathode connected with resistor 3751. REMARKS : This publication will be followed by service information A94-583 (4822 725 25371) for AZ8340 and A94-584 (4822 725 25372) for AZ8440. This modification has been implemented in production too.
MODEL: AZ8340
SYMPTOM: CD starts automatically without pressing record button.
CURE: 3747 changed from 2k7 into 1k (4822 116 83863). REMARKS : Introduction in production from week 9434 onwards.
MODEL: AZ8340
SYMPTOM: No sound at all.
CURE: Outputstage IC 7250 (TA8227P; 4822 209 31544) is defective
MODEL: AZ8340
SYMPTOM: Oscillation in MW mode.
CURE: Add resistor 3256 3R3 (5322 116 53564) in series with 2258 and 3257 3R3 (5322 116 53564) in series with 2259.
MODEL: AZ8340
SYMPTOM: CD does not start up the disk,door in display.
CURE: Door switch S1920 bent. Rebend the switch.
MODEL: AZ8340
SYMPTOM: FOCUS searching failure.
CURE: Delete 3818. Change 3816 from82k into68k (4822 116 52297) Change 3819 from3k3 into10k (4822 116 83864) Change 3820 from 100k into 270k (4822 116 83878) Change 3824 from 680k into68k (4822 116 52297) Change 3825 from 47kinto4k7 (4822 116 52283) Change 3924 from 22kinto4k7 (4822 116 52283) REMARKS : Modification implemented in production from week 9518 onwards. See Service Information A95-557.
MODEL: AZ8340
SYMPTOM: Sound sometimes interrupts on both channels
CURE: Spot of R3738 broken from copper track
MODEL: AZ8340
SYMPTOM: The CD part sometimes only gives door .
CURE: Check doorswitch
MODEL: AZ8340
SYMPTOM: Cassette lid is blocked.
CURE: 1. Insufficient lubricant applied on the door release lever of the cassette mechanism. Please apply lubricant EM30L (4822 390 20139). 2. Brackets for the cassette buttons might be deformed, because they are too weak. The construction of buttoms, item 426 (4822 410 63181) and 431 (4822 410 63182), have been redesigned and the assembling procedure in production have been reviewed. REMARKS : Modification of the construction and lubricating of the lever has been implemented in production.
MODEL: AZ8340
SYMPTOM: The CD part sometimes only gives door .
CURE: Check doorswitch
MODEL: AZ8340
SYMPTOM: Scratching sound from CD-part.
CURE: Check RAM IC7852
MODEL: AZ8340
SYMPTOM: S/N ratio and distortion of the tape R/P signal are too high.
CURE: Change 3744 from 150k to 100k (4822 116 52234) and add a zener diode 6703 BZX79-C5V6 (4822 130 34173) parallel to capacitor 2764.
MODEL: AZ8340
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 2.5kOhm Microphone input sensitivity: 0.1mV.
MODEL: AZ8340
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ8340
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck assembly is available with service code 4822 691 20983.
MODEL: AZ8340
SYMPTOM: Correction of Service Newsletter 52.14.
CURE: Correction of Service Newsletter 52.14. The cassette deck assembly is now available. For AZ8340 and AZ8345 service code is 4822 691 20984. For AZ8440, AZ8445 and AZ8540 service code is 4844 691 20983.
MODEL: AZ8340
SYMPTOM: Modification
CURE: Modification From June of 1995 onwards, the front cabinet was modified by adding 4 round poles so that the cassette buttons can be mounted on the front cabinet instead of mounted on the tape deck. The new Cabinet-Front Assembly is available via service code 4822 459 04552.
MODEL: AZ8345
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8345
SYMPTOM: Totally inoperative.
CURE: The hanging state may be caused by a high voltage spike to the IC TC9153AP. To solve the problem, add a resistor of 470 Ohm (service code number: 4822 116 52224) from pin 8 of TC9153AP to ground. Description of the phenomenon: Once the volume control is inoperative this state will be maintained by the set for about 48 hours because of a backup capacitor on the integrated circuit. A hanging set can be reset as follows: -switch the set to off mode and do not operate tapedeck. -press the volume-up button for 4 minutes. This will discharge the backup capacitor and the set will return to normal operation once it is switched on again. REMARKS : As sets AZ8245, AZ8250 is out of production, this modification is not applied in production, but it should be applied in each set offered for repair. Sets AZ8345, AZ8350 from production week 9443 onwards this resistor has been built-in.
MODEL: AZ8345
SYMPTOM: S/N ratio and distortion of the tape R/P signal are too high.
CURE: Change 3744 from 150k to 100k (4822 116 52234) and add a zener diode 6703 BZX79-C5V6 (4822 130 34173) parallel to capacitor 2764.
MODEL: AZ8345
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck assembly is available with service code 4822 691 20983.
MODEL: AZ8345
SYMPTOM: Modification
CURE: Modification From June of 1995 onwards, the front cabinet was modified by adding 4 round poles so that the cassette buttons can be mounted on the front cabinet instead of mounted on the tape deck. The new Cabinet-Front Assembly is available via service code 4822 459 04552.
MODEL: AZ8345
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 2.5kOhm Microphone input sensitivity: 0.1mV.
MODEL: AZ8345
SYMPTOM: Correction of Service Newsletter 52.14.
CURE: Correction of Service Newsletter 52.14. The cassette deck assembly is now available. For AZ8340 and AZ8345 service code is 4822 691 20984. For AZ8440, AZ8445 and AZ8540 service code is 4844 691 20983.
MODEL: AZ8348
SYMPTOM: No CD function, CD part has no +5V power supply.
CURE: Problem is caused by the heat sink of Q8 which causes a short circuit between the mass side of R6 and the collector of Q8. This fault can be solved by removing the resistor R6 from component side to copper track side. This solution has been applied in production too, as a temporary solution. REMARKS : This sympthom/cure is only valid for sets with production code KY00. In these sets CDM12.1 and concerned Philips ICs have been applied. From week 9537 onwards the printed board has been modified to locate R6 away from the heat sink.
MODEL: AZ8348
SYMPTOM: Modification
CURE: Modification From October 1995 onwards, with factory code starting from KY0295, new CD Deck Mechanism and Chassis are used. More details are published in Service Information A95-579 REMARKS : This publication is followed by Service Information A95-579
MODEL: AZ8348
SYMPTOM: Service Manual, mechanical partslist
CURE: Service Manual, mechanical partslist Add to mechanical parts list: The mounting screw (item 101) for new CD Mechanism KSM-2101BDM, is available via service code 4822 502 21383.
MODEL: AZ8349
SYMPTOM: No CD function, CD part has no +5V power supply.
CURE: Problem is caused by the heat sink of Q8 which causes a short circuit between the mass side of R6 and the collector of Q8. This fault can be solved by removing the resistor R6 from component side to copper track side. This solution has been applied in production too, as a temporary solution. REMARKS : This sympthom/cure is only valid for sets with production code KY00. In these sets CDM12.1 and concerned Philips ICs have been applied. From week 9537 onwards the printed board has been modified to locate R6 away from the heat sink.
MODEL: AZ8349
SYMPTOM: Service Manual, Mechanical partslist
CURE: Service Manual, Mechanical partslist The Cassette Door is assembled of two parts : Item 4Cassette Door Assy (R) : 4822 256 10318Cassette Door Holder (R) 4822 443 64604Cassette Door Cover (R) Item 5Cassette Door Assy (L) : 4822 256 10317Cassette Door Holder (L) 4822 443 64603Cassette Door Cover (L)
MODEL: AZ8349
SYMPTOM: Service Manual, Mechanical partslist
CURE: Service Manual, Mechanical partslist: - The CD lens cover bracket (item 115 in exploded view diagram on page 15-3) is now available via service code 4822 402 10201.
MODEL: AZ8349
SYMPTOM: Modification
CURE: Modification From September 1995 onwards, with factory code starting from KY0195, new CD Deck Mechanism and Main board are used. More details are published in Service Information A95-569 REMARKS : This publication is followed by Service Information A95-569
MODEL: AZ8350
SYMPTOM: Totally inoperative.
CURE: The hanging state may be caused by a high voltage spike to the IC TC9153AP. To solve the problem, add a resistor of 470 Ohm (service code number: 4822 116 52224) from pin 8 of TC9153AP to ground. Description of the phenomenon: Once the volume control is inoperative this state will be maintained by the set for about 48 hours because of a backup capacitor on the integrated circuit. A hanging set can be reset as follows: -switch the set to off mode and do not operate tapedeck. -press the volume-up button for 4 minutes. This will discharge the backup capacitor and the set will return to normal operation once it is switched on again. REMARKS : As sets AZ8245, AZ8250 is out of production, this modification is not applied in production, but it should be applied in each set offered for repair. Sets AZ8345, AZ8350 from production week 9443 onwards this resistor has been built-in.
MODEL: AZ8350
SYMPTOM: FOCUS searching failure.
CURE: Delete 3818. Change 3816 from82k into68k (4822 116 52297) Change 3819 from3k3 into10k (4822 116 83864) Change 3820 from 100k into 270k (4822 116 83878) Change 3824 from 680k into68k (4822 116 52297) Change 3825 from 47kinto4k7 (4822 116 52283) Change 3924 from 22kinto4k7 (4822 116 52283) REMARKS : Modification implemented in production from week 9518 onwards. See Service Information A95-557.
MODEL: AZ8350
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 2.5kOhm Microphone input sensitivity: 0.1mV.
MODEL: AZ8350
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ8350
SYMPTOM: Correction Service Manual, Mechanical partslist:
CURE: Correction Service Manual, Mechanical partslist: Item 419 is4822 410 63178Power/Mode Knob Item 423 is not used in this model.
MODEL: AZ8350
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ8351
SYMPTOM: FOCUS searching failure.
CURE: Delete 3818. Change 3816 from82k into68k (4822 116 52297) Change 3819 from3k3 into10k (4822 116 83864) Change 3820 from 100k into 270k (4822 116 83878) Change 3824 from 680k into68k (4822 116 52297) Change 3825 from 47kinto4k7 (4822 116 52283) Change 3924 from 22kinto4k7 (4822 116 52283) REMARKS : Modification implemented in production from week 9518 onwards. See Service Information A95-557.
MODEL: AZ8351
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ8351
SYMPTOM: Correction Service Manual, Mechanical partslist:
CURE: Correction Service Manual, Mechanical partslist: Item 419 is4822 410 63178Power/Mode Knob Item 423 is not used in this model.
MODEL: AZ8351
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ8352
SYMPTOM: CD does not function; focus not found
CURE: Check/replace D6800(1N4148; 4822 130 30621).
MODEL: AZ8352
SYMPTOM: FOCUS searching failure.
CURE: Delete 3818. Change 3816 from82k into68k (4822 116 52297) Change 3819 from3k3 into10k (4822 116 83864) Change 3820 from 100k into 270k (4822 116 83878) Change 3824 from 680k into68k (4822 116 52297) Change 3825 from 47kinto4k7 (4822 116 52283) Change 3924 from 22kinto4k7 (4822 116 52283) REMARKS : Modification implemented in production from week 9518 onwards. See Service Information A95-557.
MODEL: AZ8352
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ8352
SYMPTOM: Correction Service Manual, Mechanical partslist:
CURE: Correction Service Manual, Mechanical partslist: Item 419 is4822 410 63178Power/Mode Knob Item 423 is not used in this model.
MODEL: AZ8352
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ8357
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 2.5kOhm Microphone input sensitivity: 0.1mV.
MODEL: AZ8357
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ8357
SYMPTOM: Correction Service Manual, Mechanical partslist:
CURE: Correction Service Manual, Mechanical partslist: Item 419 is4822 410 63178Power/Mode Knob Item 423 is4822 411 61975Spatial Knob
MODEL: AZ8390
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8391
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8394
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8394
SYMPTOM: Service mode CD-part
CURE: Service mode CD-part Service pos. 0 = Next + search >> + power on_ (all together) Service pos. 1 = Service pos. 0 Then press play Service pos. 2 = Service pos. 1 Then press next
MODEL: AZ8400
SYMPTOM: Bad performance of erase head with Metal tape
CURE: Erase performance can be improved by changing: 2783 to 12nF 2785 to 15nF and 2786 to 100pF REMARKS : Basically, the erase head is not designed for handling of Metal tape but after introduction of above mentioned changes the performance is improved.
MODEL: AZ8400
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8400
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51058
MODEL: AZ8400
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone an CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (pos 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1541, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622 Transistors:7505 and 7555
MODEL: AZ8400
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8400
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8400
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8400/13R
SYMPTOM: Correction of mechanical parts list
CURE: Correction of mechanical parts list - Pos 419 should read 4822 423 51058 (Front cabinet assembly) instead of 4822 432 51145.
MODEL: AZ8401
SYMPTOM: Bad performance of erase head with Metal tape
CURE: Erase performance can be improved by changing: 2783 to 12nF 2785 to 15nF and 2786 to 100pF REMARKS : Basically, the erase head is not designed for handling of Metal tape but after introduction of above mentioned changes the performance is improved.
MODEL: AZ8401
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51058
MODEL: AZ8401
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8401
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8401
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8401
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone an CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (pos 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1541, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622 Transistors:7505 and 7555
MODEL: AZ8404
SYMPTOM: Bad performance of erase head with Metal tape
CURE: Erase performance can be improved by changing: 2783 to 12nF 2785 to 15nF and 2786 to 100pF REMARKS : Basically, the erase head is not designed for handling of Metal tape but after introduction of above mentioned changes the performance is improved.
MODEL: AZ8404
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8404
SYMPTOM: Correction
CURE: Correction Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor 3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC7861 is M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8404
SYMPTOM: Spare part information
CURE: Spare part information From productionmark RZ04 onwards the printing process of the graphics has been modified and the External Microphone an CD output features have been deleted. No additional service codes will be created for all the parts affected, therefore the replacement parts may have slight colour deviation from the old set brought in by the customer. Due to the feature deletion, the new top cabinet (item 401) and rear cabinet (pos 494) may need some adaptation before it can be used for replacement in an old set. The components deleted on the front board are: Sockets:1541, 1542 and 1592 Capacitors: 2521-2525, 2532 and 2571-2575 Resistors:3520-3524, 3526, 3539, 3570-3574, 3576, 3589 and 3622 Transistors:7505 and 7555
MODEL: AZ8404
SYMPTOM: Codenumber information
CURE: Codenumber information Front with grills will be delivered as an assembly with service codenumber 4822 423 51058
MODEL: AZ8404
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8420
SYMPTOM: The high speed dubbing led keeps on burning.
CURE: Check D6524 (1N4148; 4822 130 30621).
MODEL: AZ8420
SYMPTOM: Incomplete erase on chrome tape during recording.
CURE: The problem is due to erasing with permanent magnet (ie. inherent in the design). Therefore, chrome tapes are not recommended to be used with these sets.
MODEL: AZ8420
SYMPTOM: The CD part can not read the CD.
CURE: Remount spring for the sledge axles.
MODEL: AZ8420
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ8420
SYMPTOM: Cabinet Partslist
CURE: Cabinet Partslist - Items 286, 287 and 288 for both sets are from now on delivered as an assembly. That means that delivered front has mounted grills (left and right). Service codenumber reads: 4822 423 51166.
MODEL: AZ8420
SYMPTOM: Codenumber correction
CURE: Codenumber correction - The service code for switch 1550 should be 4822 277 21773 instead of 4822 277 21595.
MODEL: AZ8440
SYMPTOM: IC HEF4952, item 7716 on combi board, has been burnt.
CURE: The voltage at pin 10 of this IC (item 7716, 4822 209 32919) is too high. To protect this component, add a diode, item 6728, of type 1N4148 (4822 130 30621) in series with resistor 3751 and supply A. Anode of this diode connected to supply A, cathode connected with resistor 3751. REMARKS : This publication will be followed by service information A94-583 (4822 725 25371) for AZ8340 and A94-584 (4822 725 25372) for AZ8440. This modification has been implemented in production too.
MODEL: AZ8440
SYMPTOM: CD starts automatically without pressing record button.
CURE: 3747 changed from 2k7 into 1k (4822 116 83863). REMARKS : Introduction in production from week 9434 onwards.
MODEL: AZ8440
SYMPTOM: Oscillation in MW mode.
CURE: Add resistor 3256 3R3 (5322 116 53564) in series with 2258 and 3257 3R3 (5322 116 53564) in series with 2259.
MODEL: AZ8440
SYMPTOM: Cassette lid is blocked.
CURE: 1. Insufficient lubricant applied on the door release lever of the cassette mechanism. Please apply lubricant EM30L (4822 390 20139). 2. Brackets for the cassette buttons might be deformed, because they are too weak. The construction of buttoms, item 426 (4822 410 63181) and 431 (4822 410 63182), have been redesigned and the assembling procedure in production have been reviewed. REMARKS : Modification of the construction and lubricating of the lever has been implemented in production.
MODEL: AZ8440
SYMPTOM: S/N ratio and distortion of the tape R/P signal are too high.
CURE: Change 3744 from 150k to 100k (4822 116 52234) and add a zener diode 6703 BZX79-C5V6 (4822 130 34173) parallel to capacitor 2764.
MODEL: AZ8440
SYMPTOM: Correction of Service Newsletter 52.14.
CURE: Correction of Service Newsletter 52.14. The cassette deck assembly is now available. For AZ8340 and AZ8345 service code is 4822 691 20984. For AZ8440, AZ8445 and AZ8540 service code is 4844 691 20983.
MODEL: AZ8440
SYMPTOM: Modification
CURE: Modification From June of 1995 onwards, the front cabinet was modified by adding 4 round poles so that the cassette buttons can be mounted on the front cabinet instead of mounted on the tape deck. The new Cabinet-Front Assembly is available via service code 4822 459 04552.
MODEL: AZ8440
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ8440
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck assembly is available with service code 4822 691 20983.
MODEL: AZ8445
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8445
SYMPTOM: S/N ratio and distortion of the tape R/P signal are too high.
CURE: Change 3744 from 150k to 100k (4822 116 52234) and add a zener diode 6703 BZX79-C5V6 (4822 130 34173) parallel to capacitor 2764.
MODEL: AZ8445
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck assembly is available with service code 4822 691 20983.
MODEL: AZ8445
SYMPTOM: Modification
CURE: Modification From June of 1995 onwards, the front cabinet was modified by adding 4 round poles so that the cassette buttons can be mounted on the front cabinet instead of mounted on the tape deck. The new Cabinet-Front Assembly is available via service code 4822 459 04552.
MODEL: AZ8445
SYMPTOM: Correction of Service Newsletter 52.14.
CURE: Correction of Service Newsletter 52.14. The cassette deck assembly is now available. For AZ8340 and AZ8345 service code is 4822 691 20984. For AZ8440, AZ8445 and AZ8540 service code is 4844 691 20983.
MODEL: AZ8450
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8490
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8492
SYMPTOM: Service mode CD-part
CURE: Service mode CD-part Service pos. 0 = Next + search >> + power on_ (all together) Service pos. 1 = Service pos. 0 Then press play Service pos. 2 = Service pos. 1 Then press next
MODEL: AZ8540
SYMPTOM: The CD part gives NO DISC.
CURE: Check connector CN1842.
MODEL: AZ8540
SYMPTOM: Cassette lid is blocked.
CURE: 1. Insufficient lubricant applied on the door release lever of the cassette mechanism. Please apply lubricant EM30L (4822 390 20139). 2. Brackets for the cassette buttons might be deformed, because they are too weak. The construction of buttoms, item 426 (4822 410 63181) and 431 (4822 410 63182), have been redesigned and the assembling procedure in production have been reviewed. REMARKS : Modification of the construction and lubricating of the lever has been implemented in production.
MODEL: AZ8540
SYMPTOM: S/N ratio and distortion of the tape R/P signal are too high.
CURE: Change 3744 from 150k to 100k (4822 116 52234) and add a zener diode 6703 BZX79-C5V6 (4822 130 34173) parallel to capacitor 2764.
MODEL: AZ8540
SYMPTOM: Codenumber information
CURE: Codenumber information The cassette deck assembly is available with service code 4822 691 20983.
MODEL: AZ8540
SYMPTOM: Correction of Service Newsletter 52.14.
CURE: Correction of Service Newsletter 52.14. The cassette deck assembly is now available. For AZ8340 and AZ8345 service code is 4822 691 20984. For AZ8440, AZ8445 and AZ8540 service code is 4844 691 20983.
MODEL: AZ8540
SYMPTOM: Modification
CURE: Modification From June of 1995 onwards, the front cabinet was modified by adding 4 round poles so that the cassette buttons can be mounted on the front cabinet instead of mounted on the tape deck. The new Cabinet-Front Assembly is available via service code 4822 459 04552.
MODEL: AZ8540
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the CD2 electrical partslist, the service code of the IC 7403 ST24C01CB1 should read 4822 209 31508.
MODEL: AZ8545
SYMPTOM: No sound.
CURE: No sound because IC7510 (TC9153AP) comes in a hang up situation. Normally the IC7510 will be initialized (reset) by switching the power off/on. However the supply voltage +7 of the IC supply is hold by the back-up capacitor item 2525. This voltage prevents a proper initialization when power is switched off and shortly later switched on again. To have a proper initialization, this volume back-up capacitor has to be discharged first. The back-up capacitor, item 2525 with a value of 470uF requires however, DAYS to be discharged! By changing this value into 1uF (4822 124 40242), the time taken for discharging is decreased to 2 minutes. After this modification, the set will be initialized when the time between power off and on is 2 minutes. REMARKS : This modification has been implemented in production from week 9511 onwards.
MODEL: AZ8562
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the CD2 electrical partslist, the service code of the IC 7403 ST24C01CB1 should read 4822 209 31508.
MODEL: AZ8562
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 2.5kOhm Microphone input sensitivity: 0.1mV.
MODEL: AZ8562
SYMPTOM: Service Manual, mechanical partslist
CURE: Service Manual, mechanical partslist The service codes of item 429 and 453 are interchanged. Correction : item 4294822 529 10278 item 4534822 529 10257
MODEL: AZ8567
SYMPTOM: Disc starts rotating. After some seconds error in display.
CURE: Check/replace IC7851 (M50427AFP; 4822 209 62371) on CD board.
MODEL: AZ8567
SYMPTOM: Service Manual correction
CURE: Service Manual correction - In the CD2 electrical partslist, the service code of the IC 7403 ST24C01CB1 should read 4822 209 31508.
MODEL: AZ8567
SYMPTOM: Correction service Manual, Mechanical partslist:
CURE: Correction service Manual, Mechanical partslist: The service codenumber of item 401 Front Cover should read 4822 423 51202.
MODEL: AZ8567
SYMPTOM: Service Manual, mechanical partslist
CURE: Service Manual, mechanical partslist The service codes of item 429 and 453 are interchanged. Correction : item 4294822 529 10278 item 4534822 529 10257
MODEL: AZ8640
SYMPTOM: CD does play but without sound.
CURE: Check soldering of transistor T7872.
MODEL: AZ8640
SYMPTOM: Plopping sound sometimes.
CURE: Check soldering of capacitor C2763.
MODEL: AZ8640
SYMPTOM: CD Drawer does not open/close because items 202 and 204 are damaged.
CURE: The root cause of the problem is the insufficient guidance of the drawer that can jump over the gear wheel 202, such that the drawer cannot be closed completely.If the drawer is pulled or pushed, the cam gear will be damaged. Two guiding-brackets items 503 and 504 have been added at item 216 (tray). Also the pinion gear 213 has been modified. These actions reduce the risk of misalignment or damage to gear wheel 202 and the cam gear 204 when the CD tray is pulled or pushed. To avoid a repeat-repair, replace following components: pos 202, 4822 522 33464, tooth-wheel tray pos 204, 4822 522 33465, cam-wheel pos 208, 4822 528 70851, idler wheel 1 pos 209, 4822 528 70852, idler wheel 2 pos 213, 4822 532 52573, pignon guiding construction pos 216, 4822 444 40727, tray REMARKS: This information concerns module called Short Loader and ECO Short Loader. These modules have been applied in all above mentioned sets and this phenomenon may occur. This information also refers to newsletter publications issue 64.40; 65.01 and 96.06.05. In newsletter 65.01 was also the typenumber FW33 included. However in this set a 3 disc changer is applied and not the short loader module.
MODEL: AZ8640
SYMPTOM: Set does not show the time and does not start up.
CURE: Check transistor T7403.
MODEL: AZ8640
SYMPTOM: CD player gives No disc.
CURE: Check soldering of R3821 and C2858.
MODEL: AZ8640
SYMPTOM: Zooming sound (oscillation of focus-servo)
CURE: Exchange disc clamper assy item 212 with new one 4822 691 30358. REMARKS : Realized in CD modules with factory change code 4WT01. This publication will be followed by Service Information A94-362. (4822 725 24948)
MODEL: AZ8640
SYMPTOM: CD door does not close fully or opens automatically after close.
CURE: The phenomenon will occur if the CD door is closed by strongly pushing the tray.This creates misalignment or damage to the tooth-wheels items 202 and 204. By this strong force also the pinion guiding gears on item 213 are loosened from their shaft. The problem can be corrected by the following actions: 1. Check if the gears 202 and 204 are not damaged. 2. Replace item 213 (4822 532 52573 = pinion guiding gear) by a modified one having a closed end and re-align the gears 202 and 204 correctly. Be sure that both pinion guiding gears have been fixed mounted (glued) on the shaft item 213. 3. Replace, if necessary, tray pos 216 (4822 444 40727) by one having guiding brackets pos 503 & 504 mounted. REMARKS : From week 9504 the improved tray (216) with guides was introduced. From week 9543 improved Pinion guiding gear, pos 213 (gear with on end closed) was introduced. This is additional information on newsletter item 64.40. (gears fixed to shaft) Further to the newsletter 64.40: It is recommended to check in every returned set, whether the pinion guiding gears on item 213 are fixed to the shaft.
MODEL: AZ8640
SYMPTOM: Modification
CURE: Modification From production week 9444 onwards LF-Mains board with layout stage .5 has been implemented in the sets. REMARKS : Reason: Implementation of the rework (on stage .4) in the layout. For details see Service Information A94-362 (4822 725 24948).
MODEL: AZ8640
SYMPTOM: Modification
CURE: Modification CD board changed to layout stage .8 REMARKS : Reason: Improved susceptibility to ESD. For details see Service Information A94-362 (4822 725 24948).
MODEL: AZ8640
SYMPTOM: Spare part information
CURE: Spare part information The short-loader kit contains the parts needed for repair. Use all parts to prevent a repeat. Pos. 202 4833 522 33464 Pos. 213 4822 532 52573 Pos. 204 4822 522 33465 Pos. 216 4822 444 40727 Pos. 208 4822 528 70851 Pos. 209 4822 528 70852 in case of damaged 202 and 204
MODEL: AZ8700
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ8700
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8700
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8700
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 401 and 436. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8704
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596.Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8704
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8704
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 401 and 436. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8704
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ8705
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8705
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ8705
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8705
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 401 and 436. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8705
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 401 and 436. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8900
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ8900
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 451 and 452. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8900
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596.Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8904
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 451 and 452. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ8904
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ8904
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ9020
SYMPTOM: No CD-operation, door in display when CD-door is closed.
CURE: Check soldering quality of the wire on the doorswitch.
MODEL: AZ9020
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9022
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9025
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9040
SYMPTOM: Totally inoperative.
CURE: Check jumper 9312 on main PCB
MODEL: AZ9040
SYMPTOM: Poor recording causing distortion when playing back on the set.
CURE: Recording distortion can be reduced by increasing the bias level in changing resistor 3773 from 150 ohm into 120 ohm 5% 0.5W (4822 116 52206). REMARKS : This solution has been implemented in production from week 9525 onwards.
MODEL: AZ9040
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ9055
SYMPTOM: After about 40 minutes the set does not react on RC
CURE: Check IC551
MODEL: AZ9055
SYMPTOM: Almost no sound from the right channel.
CURE: Check capacitor C303.
MODEL: AZ9055
SYMPTOM: A plop noise is recorded at the beginning and ending of a recording
CURE: The noise is caused by the time difference between activation of the motor switch and the record switch.The record switch is adjusted to shorten the time difference so that problem is minimised. Situation becomes worse because the record switch can be located afterwards.For service solution, adjust the position of the record switch so that the switch can be activated earlier. Add glue to protect record switch getting loose. REMARKS : Glue for fitting the switch has been added in production sets from week 9542 onwards. For long term, the location of the record switch has been changed. It will be mounted near the middle of the record lever so that the time difference can been further shortened.Modified mechanism has been introduced in production from week 9621 onwards.
MODEL: AZ9055
SYMPTOM: It takes a very long time before the TOC is read.
CURE: Check IC105 REMARKS: See also Newsletter 96.02.03
MODEL: AZ9055
SYMPTOM: The CD produces a distorted sound after some time.
CURE: Check decoder IC102.
MODEL: AZ9055
SYMPTOM: CD does not start-up or uses too long time to start-up (8-10 sec.)
CURE: Fault is caused by the cross-talk between track and focus servo. The problem can be corrected by the following actions: 1. Replace J112, where temporarily a 1 ohm resistor was mounted, by a jumper wire. J112 can be found on CD Main Board (layout diagram), near IC104 pin2. With this jumper pin2 of IC104 is connected to ground. 2. Change R106 from 39k to 33k (4822 050 23303). One side of R106 is connected to IC101 pin72 (HF SUM). 3. Change C108 from 330pF to 220pF (5322 122 32346). One side of C108 is connected to IC101 pin69 (BH). After this modification: Check the E/F balance for a value within range: 40mV plus/minus 20mV. REMARKS : 1.This modifaction has been implemented in production from week 9546 onwards. 2.CHANGING THE COMPLETE CD-DRIVE WILL NOT SOLVE THE PROBLEM SATISFACTORILY
MODEL: AZ9055
SYMPTOM: Spare part information
CURE: Spare part information The pinning of connector CNS851 does not correspond with the circuit diagram. CNS851 1 2 3 4 5 2 3 4 5 1 should read CNH851 1 2 3 4 5 1 2 3 4 5
MODEL: AZ9055
SYMPTOM: Service Manual, Mechanical partslist - Cabinet
CURE: Service Manual, Mechanical partslist - Cabinet Following parts are added to the service partslist : Item 2 4822 454 13181Badge (Philips) 2 4822 454 13179Badge (Magnavox) 8 4822 442 00306EQ Cover 224822 529 10317Damper for Cass. Door 224822 466 93504Damper for CD Door (for all versions) 344822 410 10429EQ Knob (A) - 100 Hz 344822 410 10431EQ Knob (B) - 1 kHz 344822 410 10432EQ Knob (C) - 10 kHz Electrical partslist : IC551 PT2249A can be replaced by TC9149P (4822 209 61529).
MODEL: AZ9210
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9210
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9210
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9213
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9213
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9213
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9214
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9214
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9214
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9214
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9310
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9310
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9310
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9310
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9310
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9338
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ9340
SYMPTOM: Display shows DOOR even when the CD door is closed.
CURE: The problem is due to heavy oxidation of the leaf switch 1920 causing poor contact (permanent or intermittent). REMARKS : Switch of improved quality has been applied and the mechanical door activation has been re-designed. Both improvements have been implemented from week 9529 onwards.
MODEL: AZ9340
SYMPTOM: Poor recording causing distortion when playing back on the set.
CURE: Recording distortion can be reduced by increasing the bias level in changing resistor 3773 from 150 ohm into 120 ohm 5% 0.5W (4822 116 52206). REMARKS : This solution has been implemented in production from week 9525 onwards.
MODEL: AZ9340
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ9350
SYMPTOM: Distorted sound from tape playback after making a CD recording.
CURE: The cause of the distortion is a poor recording quality due to a too low bias current (below 0.3mA).A correct bias current in about 0.36mA. The correct bias can be achieved by changing the oscillator transistor 7770 from BC548B to BC548C (4822 130 44196).
MODEL: AZ9350
SYMPTOM: CD shows Door open or CD loaded but does not function.
CURE: The problem is due to heavy oxidation of the leaf switch 1920 causing poor contact (permanent or intermittent). REMARKS : Switch of improved quality has been applied and the mechanical door activation has been re-designed. Both improvements have been implemented from week 9529 onwards.
MODEL: AZ9350
SYMPTOM: Service hint RCD drive mechanism
CURE: Service hint RCD drive mechanism An analyse of exchanged RCD drives in service workshops showed that a reasonable quantity of these drives has no fault and is according to specifications. For sets equipped with CD1-D module (produced from week 9452 onwards) the following faults may occur: * COLD or BROKEN SOLDER JOINTS in the areas of connectors 1801 and 1802 and bridge wires connecting the vertical bended board with the tact switches. Due to the handling during exchanging the disc drive, a bad solder joint may be temporarily reconnected. So it seems that the exchange was successful but after some time the set may fail again. * MARGINAL FOCUS SEARCH TRIANGLE AMPLITUDE In case the set does not start-up due to FOCUS-error the following actions have to be done: Check whether the amplitude of the electrical triangle signal during FOCUS SEARCH is too low. Use for this service testprogram, measuring point 3 in schematic diagram. If FOCUS cannot be found in normal position of the set, then turn set upside down and try again (gravity influences focus coil). If FOCUS will now be found the electronic circuit has to be changed to increase the amplitude of the triangle signal. Change 3816to68k 4822 116 52297 3819to3,3k4822 116 83864 3820to100k4822 116 83878 3924to2,7k4822 116 52263 Delete 3818 REMARKS : These changes were implemented in production from approx. June 1995 onwards.
MODEL: AZ9350
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 10kOhm. Applied microphones may have output impedance of 30 till 600 Ohm.
MODEL: AZ9350
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ9355
SYMPTOM: Distorted sound from tape playback after making a CD recording.
CURE: The cause of the distortion is a poor recording quality due to a too low bias current (below 0.3mA).A correct bias current in about 0.36mA. The correct bias can be achieved by changing the oscillator transistor 7770 from BC548B to BC548C (4822 130 44196).
MODEL: AZ9355
SYMPTOM: CD shows Door open or CD loaded but does not function.
CURE: The problem is due to heavy oxidation of the leaf switch 1920 causing poor contact (permanent or intermittent). REMARKS : Switch of improved quality has been applied and the mechanical door activation has been re-designed. Both improvements have been implemented from week 9529 onwards.
MODEL: AZ9355
SYMPTOM: Service Information
CURE: Service Information - The output pins LED and BIAS of item 8110 are not used. From week 9621 onwards, a 4-pins socket is used in the position of 8110. Consequently resistors 3103 and 3105 are also deleted.
MODEL: AZ9401
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 406 and 407. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9430
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9435
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9450
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 10kOhm. Applied microphones may have output impedance of 30 till 600 Ohm.
MODEL: AZ9491
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ9492
SYMPTOM: Service Manual
CURE: Service Manual Due to an error in the partlist and schematic/layout diagram the following must be corrected: Capacitor 2862 is 390pF instead of 2.2nF 2863 is 330nF instead of 150nF Resistor3862 is 3.9k instead of 1k 3864 is 120k instead of 56k 3895 3.3M is added across 2862 IC 7861 M50422P 4822 209 72813 instead of M50427FP
MODEL: AZ9510
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9510
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9510
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9510
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9513
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9513
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9513
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9513
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9514
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9514
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9514
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9514
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9555
SYMPTOM: Distorted sound from tape playback after making a CD recording.
CURE: The cause of the distortion is a poor recording quality due to a too low bias current (below 0.3mA).A correct bias current in about 0.36mA. The correct bias can be achieved by changing the oscillator transistor 7770 from BC548B to BC548C (4822 130 44196).
MODEL: AZ9555
SYMPTOM: CD shows Door open or CD loaded but does not function.
CURE: The problem is due to heavy oxidation of the leaf switch 1920 causing poor contact (permanent or intermittent). REMARKS : Switch of improved quality has been applied and the mechanical door activation has been re-designed. Both improvements have been implemented from week 9529 onwards.
MODEL: AZ9555
SYMPTOM: Service Manual
CURE: Service Manual Addition to specifications: Microphone input impedance: approximately 10kOhm. Applied microphones may have output impedance of 30 till 600 Ohm.
MODEL: AZ9610
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9610
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9610
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9610
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9613
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9613
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism: Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code: 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9613
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9613
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9614
SYMPTOM: Very intermittent operation of autoreverse or autostop function.
CURE: After carrying out some visual checks, replacing the tape mechanism cured the fault. Codenr. 4822 691 10294.
MODEL: AZ9614
SYMPTOM: Correction Service Manual
CURE: Correction Service Manual - Two items of the shock-absorber of the CD-mechanism (spring support and suspension grommet) have been interchanged: item 409 and 411. CORRECTION MECHANICAL PARTSLIST INTERCHANGE OF 4822 404 60471 (spring support) AND 4822 325 20138 (suspension grommet) REMARKS : The shock-absorber consists of 3 parts of which above mentioned items are interchanged. Usually the 3 parts are ordered all together, that's why no service information will be prepared.
MODEL: AZ9614
SYMPTOM: Modification
CURE: Modification During production the RCD mechanism is changed from RCD-1D to RCD-1.2D due to change in the optical pick-up unit.The following changes are necessary to match the electronics to the new RCD mechanism : Item FromTo Serv code /Pos 4234822 691 20596 4822 691 20768 - AZ801... 4234822 691 20596 4822 691 20768 - AZ811... 4234822 691 20596 4822 691 20768 - AZ821... 4474822 691 20596 4822 691 20768 - AZ830... 4474822 691 20596 4822 691 20768 - AZ840... 4044822 691 20596 4822 691 20768 - AZ870... 4014822 691 20596 4822 691 20768 - AZ890... 4124822 691 20596 4822 691 20768 - AZ921... 4124822 691 20596 4822 691 20768 - AZ931... 4124822 691 20596 4822 691 20768 - AZ951... 4124822 691 20596 4822 691 20768 - AZ961... 2807 10pF 15pF4822 122 31823 2808 330pF180pF 4822 122 10171 2812 1F0.47F4822 124 42243? 2814 22F 10F4822 124 40248 2813 47nF 100nF 5322 126 10181 2816 270pF220pF 4822 122 10172 2819 18nF 33nF4822 121 43145 2821 18nF 33nF4822 121 43145 2824 560pF270pF 4822 122 31465 2827 4.7nF10nF4822 122 10177 2836 100nF22nF4822 121 43144 2837 10nF 18nF4822 121 51306 2838 1.5nF2.2nF 4822 122 10175 3804 15k 8.2k 4822 050 28202 3805 15k 8.2k 4822 020 28202 3806 18k 12k4822 050 21203 3815 2.2k3.3k 4822 050 23302 3822 68k 220k 4822 116 81849 3825 3.9k2.2k 4822 050 22202 3827 390 2204822 116 52215 3828 22k 10k4822 050 21003 3829 18k 68k4822 050 26803 3830 39k 4.7k 4822 050 24702 3836 2.2k5.6k 4822 116 52289 3849 2.2k3.3k 4822 050 23302 3871 6.8k10k4822 050 21003 3872 100k47k4822 050 24703 3875 220 3904822 050 13901 The new RCD mechanism can be recognised by the the coils on either side of the focusing lens. The changes mentioned are introduced during the production, but this does not affect sets with the old mechanism because RCD-1D is still available in stocks under service code : 4822 691 20596. Adjustment must be done as laid out in the Service Manual. In situation where the set under repair is using the new mechanism, RCD-1.2D (4822 691 20768) the change info must apply and if adjustment needs to be done the new adjustment table must be used.
MODEL: AZ9614
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9614
SYMPTOM: RCD1.2D DISC DRIVE - service hint
CURE: RCD1.2D DISC DRIVE - service hint to detect a bad disc drive SYMPTOM One of the following complaint descriptions: - no function, does not start - plays badly - skips tracks - very shock sensitive General observation by investigation: HF-signal too small (compared to value: 800 mVpp) CAUSE: Possible caused by mechanical x/y-fixation of the diode array on the optical pick-up unit has drifted. Attention: The laser control of the RCD1.2D disc drive is located on the optical pick-up unit. The laser current has been adjusted in the production line and isn o tintended to be varied for service purposes. If the HF-signal is detected considerably smaller than 800 mVpp, check first as follows: Play a disc. Turn the FOCUS OFFSET potmeter and observe the HF-signal: - If the HF-signal decreases in both directions, the x/y-adjustment of the diode array can be considered to be o.k. - If the HF-signal increases in one direction, adjust to max. HF and check the FOCUS OFFSET voltage: FOCUS OFFSET <+/-100mV this means: x/y-adjustment of diode array is within tolerance. Conclusion: If above described results are detected, the reason for too small HF-signal might be a dying laser diode or any other fault in the electronic circuit. In case of dying laser diode the optical pick-up unit (4822 691 30327) has to be exchanged. FOCUS OFFSET > +/-100mV this means: x/y-adjustment of diode array has drifted and is out of tolerance. Conclusion: In this case the optical pick-up unit has to be exchanged by a new one (4822 691 30327). REMARKS : On the service information of concerning typenumber the drawing with the mechanical instruction how to exchange the optical pick-up unit has been shown. After replacement of the optical pick-up unit the mentioned electrical adjustments in the service manual have to be carried out. This publication will be followed by a service information of each model/typenumber.
MODEL: AZ9710
SYMPTOM: Codenumber information
CURE: Codenumber information Optocoupler, mounted on tape transports is available with Service Code 4822 209 31115. REMARKS : This publication will be followed by a Service Information.
MODEL: AZ9712
SYMPTOM: During a couple of seconds a whistling tone is audible.
CURE: The whistling tone is caused by an oscillation of the stablized +B supply. This will only occur in sets produced in production weeks 9140-9151. Solution is: Change 5403 from 4.7uH to 0.47uH 4822 157 53138. Change 2441 from 100nF to 330nF4822 122 33064 (both components are located on the control board). This modification can easily be done on the coppertrack side of the control board. Push one lead of coil 5403 through the hole and mount new coil on copperside. C2441 is a chip component mounted already on coppertrack side. This solution has been built-in from production week 9151 onwards. (PCB marked-5). This information has already been published in service information A92-125. REMARKS: This publication is a correction on newsletter 44.13 and 45.08
MODEL: AZ9712
SYMPTOM: Codenumber information
CURE: Codenumber information Optocoupler, mounted on tape transports is available with Service Code 4822 209 31115. REMARKS : This publication will be followed by a Service Information.
MODEL: AZ9800
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9804
SYMPTOM: Modifications
CURE: Modifications - To avoid motor-boating problem change capacitors 2722/2772 from 1F 63V to 1F 50V codenumber 4822 124 22466. To improve reliability change capacitors 2732/2782 from 1nF to 2.2nF codenumber 4822 122 10175. Resistor 3777 has been changed from 120 to 150 codenumber 4822 050 21501. To solve recording distortion change resistor 3798 from 2.2k to 2.7k codenumber 4822 130 82552. Zener diode 6713 has been changed from BZX75-C2V1 to HZ2B2 codenumber 4822 130 82552.
MODEL: AZ9855
SYMPTOM: Spare part information
CURE: Spare part information Two types of cassette tape deck are used.Production will use different factory code to identify the deck: KZ00xxxx for CDS-83FBF-27 KZ01xxxx for TK20FX-S For details of TK20FX-S, we refer to service information A95-560 (Available via service codenumber 4822 725 25403). REMARKS : This publication will be followed by Service Information A95-560)
MODEL: AZ9898
SYMPTOM: Short Battery Life (less than 40 min. with some Alkalite batteries)
CURE: Short battery lifetime is caused by high internal impedance of some Alkalite batteries.It can be improved by the following modifications: 1. Replace LD09 by a 10 ohm resistor (4822 051 30109). 2. Replace MPU IC QM03 by the updated version (4822 209 17367). 3. Remove filter LP21. 4. Add two SMD jumpers (4822 051 10008) to position LP21. REMARKS : Above modification is implemented in production since production LOT number 21, production code MZ01 xxxx21xxxx onwards.
MODEL: AZ9899
SYMPTOM: During Video CD playback the picture is frozen or skipping
CURE: Upgrade IC QD01 SAA7327H from version.M?. to version.M2B?.
MODEL: BF1280
SYMPTOM: Partslist
CURE: Partslist - Leverknob 505 (503 for FCD185) has servicecodenumber 4822 404 21069.
MODEL: CCD061
SYMPTOM: Skips tracks after some time
CURE: Replace disc clamper pos.108 by a new weight disc.
MODEL: CCD061
SYMPTOM: Cassette stuck in deck A
CURE: Re-adjust spring pos.408
MODEL: CCD310
SYMPTOM: Faulty recording when using auto-reverse
CURE: The following fault may be found on early production cassette decks when making a continuous recording on both sides of a cassette using the auto-reverse feature. After recording side A the recording does not continue on side B although the front panel display indicates that arecording is taking place. The problem may be solved by replacing P IC7402 with a later version with updated software.Early version microprocessors are labelled CAS-LEU-90-A.Later production and replacement types are labelled CASS-C3-90-B. The part number 4822 209 63802 is unchanged.
MODEL: CCD310
SYMPTOM: Correction mechanical partslist Tape Transport
CURE: Correction mechanical partslist Tape Transport Pos 107 should read 4822 361 21431 (Pb deck - single direction, marked EG530KD-2B) instead of 4822 361 21429. Pos 118 reads 4822 361 21429 (Rec deck - autoreverse, marked EG530YD-2B) as it has been published.
MODEL: CCD310
SYMPTOM: Modification
CURE: Modification To solve ESD problems, the capacitor network 2912 8x100pF (4822 122 90099) has been added. This modification is introduced with lay-out .2 with label A.See figure.
MODEL: CCD310
SYMPTOM: Modification
CURE: Modification To prevent turning of the turntable motor during stand-by, the following modifications have been introduced: Item 2896 elcap 1uF changed to 6,8uF 50V (4822 124 41578) Item 3955 resistor 1 Ohm changed to 1 kOhm (4822 050 21002) Item 6830 diode 1N4148 added (4822 130 30621) See figure.
MODEL: CCD310
SYMPTOM: Codenumber information
CURE: Codenumber information Optocoupler, mounted on tape transports is available with Service Code 4822 209 31115. REMARKS : This publication will be followed by a Service Information.
MODEL: CCD340
SYMPTOM: No wind or play function right-hand deck.
CURE: Check motordriver transistor T7410.
MODEL: CCD340
SYMPTOM: No sound at all, CD part keeps on reading and gives LOADED.
CURE: Check decoder IC7805 (4822 209 30388).
MODEL: CCD340
SYMPTOM: Deck A stops after a few seconds.
CURE: Check connection of flatcable deck A with connector 1705
MODEL: CCD340
SYMPTOM: Left-hand tape deck inoperative.
CURE: Check solenoid spring of deck A; Remount the solenoid spring.
MODEL: CCD340
SYMPTOM: From Deck A (left deck), in play mode, mechanical noise is audible.
CURE: Temporary applied in production: Additional grease on the axle applied (From June 1992 till December 1992) Final solution: Grease application at manufacturing quarantees a more stable quality. (From December 1992 onwards) CAUSE : Too much clearance between the pinch roller and the axle. This causes the pinch roller rattling.
MODEL: CCD340
SYMPTOM: Right-hand tape deck inoperative.
CURE: Check transistor T7410 (BC338-40; 5322 130 44779).
MODEL: CCD340
SYMPTOM: Correction mechanical partslist Tape Transport
CURE: Correction mechanical partslist Tape Transport Pos 107 should read 4822 361 21431 (Pb deck - single direction, marked EG530KD-2B) instead of 4822 361 21429. Pos 118 reads 4822 361 21429 (Rec deck - autoreverse, marked EG530YD-2B) as it has been published.
MODEL: CCD66
SYMPTOM: CD-part totally inoperative.
CURE: The power supply of the CD part is not switched on. Replace uP IC7890.
MODEL: CCD66
SYMPTOM: CD open/close button inoperative.
CURE: Check flatcable.
MODEL: CCD66
SYMPTOM: The CD drawer opens but does not close.
CURE: The -12V. power supply fails. Check R3400.
MODEL: CCD66
SYMPTOM: CD drawer comes out always.
CURE: Check safety resistor R3400
MODEL: CCD66
SYMPTOM: The CD part gives a digital noise after some time.
CURE: Check soldering of IC7101
MODEL: CCD66
SYMPTOM: The audio signal from the CD part is distorted, digital noise.
CURE: Replace decoder/DAC (IC7102).
MODEL: CCD66
SYMPTOM: The CCD part is inoperative, set gives no CCD and switches off.
CURE: Check resistor R3404 in the CCD part
MODEL: CCD66
SYMPTOM: CDM is oscillating
CURE: Replace disc clamper assy. pos.212 by a heavier one.
MODEL: CCD66
SYMPTOM: Service hint
CURE: Service hint The cassette window can be replaced in an easy way by following the next instructions: Put carefully a screwdriver under the bottom side of the window, and break out the window, item 244 and the ornamental strips, item 246. Note:To protect the front door part put a cloth between screwdriver and front door. From the 2 broken ornamental strips might remain small particles behind in the front door. If these particles later on fall in the set they may destroy other parts e.g. the tape deck. Do not forget to remove these particles via the opened cassette front door. The new window (4822 450 62262) can be mounted by putting first a little bit of glue on the left and right side of the window opening, insert the window and finally position the 2 ornamental strips (item 246; 4822 460 11015)
MODEL: CCD66
SYMPTOM: Codenumber information
CURE: Codenumber information System con. cable is 4822 321 62498
MODEL: CCD66/00S
SYMPTOM: Spare part information
CURE: Spare part information The ornamental tray front of the short loader (CCD66/00S) item 248 is available. Service code number is 4822 444 61009. This part is only valid for /xxS versions. The ornamental tray front for the CD brick version, item 248, remains 4822 454 12937. This part is only valid for /xxB versions.
MODEL: CD060
SYMPTOM: Bad recordings from CD player. Sound distortion after recording.
CURE: Check capacitor C2657 (47uF) in delay time circuit. (4822 124 40433).
MODEL: CD060
SYMPTOM: CD skips tracks after some time. (After warming up monitor diodes).
CURE: Replace CDM. (4822 691 30278)
MODEL: CD060
SYMPTOM: Skips tracks after some time. Gives ERROR.
CURE: Check CDM (4822 691 30278).
MODEL: CD060
SYMPTOM: Eject deck B inoperative.
CURE: Fuse F1661 might be defective. Replace the fuse by a PTC. (4822 116 40227).
MODEL: CD070
SYMPTOM: The CD player produces a noisy sound.
CURE: Check the decoder/DAC IC7102 (4822 209 30388).
MODEL: CD070
SYMPTOM: CD skips tracks after some time. (After warming up monitor diodes).
CURE: Replace CDM. (4822 691 30278)
MODEL: CD080
SYMPTOM: CD gives NO DISC indication.
CURE: Sledge motor does not turn? Replace CDM.
MODEL: CD091
SYMPTOM: CD does not read disc.
CURE: Check CDM (4822 691 30278).
MODEL: CD115
SYMPTOM: Service hint
CURE: Service hint When reading a disc, the display shows an ERROR message. The set is not able to read the T.O.C. and will not start to play. Hint: Verify the production period on the CDM Paper label: 9135 upto and including 9138 Inkjetmark: 9134.4A upto and including 9138.4A During this period wrong grease is used causing too high friction of the swing arm. In that case the CDM has to be replaced. From 9139 or 9138.4B onwards, this error is retrieved.
MODEL: CD130
SYMPTOM: WARNING:Possible damage to laser
CURE: WARNING:Possible damage to laser caused by switching of SK3 In the above model where the deck mechanism is integrated with the loading tray the laser can be damaged or its lifetime reduced if the laser safety switch SK3 is operated when the laser is active. SK3 is situated on the photodiode signal control panel. No problems are caused by operating the push buttons on the front control panel but SK3 must remain closed and not be toggled when the set is in PLAY mode or the service test routine.
MODEL: CD1380
SYMPTOM: Loading mechanism called: loading 88,
CURE: Loading mechanism called: loading 88, - Frame (item 502) will be changed from week 9015 onwards. The new frame (4822 464 50822) is not compatible with the old one (4822 464 50715). Both frames are not interchangeable without a modification.As long as the old frame is available the old frame can be exchanged without a modification. If the old frame is no longer in stock, it has to be replaced by the new one and the motor (item 131) on the frame has to be replaced too. New frame: 4822 464 50822 + New motor: 4822 361 21408.
MODEL: CD1482
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD150
SYMPTOM: No audio signal
CURE: Check/resolder connections to secondary winding of mains transformer.
MODEL: CD1552
SYMPTOM: Bad playability with scratched CDs (Drop-outs, skips tracks)
CURE: Customer complaint: Other sets are able to play the same disc without any problem. CAUSE: Complaint set fulfils the specification, but tracking balance adjustment is not optimized for scratched CDs. SOLUTION: A more accurate adjustment of the TRACKING BALANCE will improve the playability of the set. Apply at measuring point 4 and 5 a low pass RC-filter with a time constant of approx. 3.5 seconds. The measured DC-level on the oscilloscope follows the TE-signal delayed. Adjust with potentiometer 3806 the measured value on the oscilloscope to 0V DC +/- 5 mV. In more detail explained in service information A93-368. REMARKS : This publication will be followed by service information A93-368.
MODEL: CD1552
SYMPTOM: Poor loading function (CDs damaged)
CURE: Check the set-up at the customer's place. REMARKS : If the set is placed on an uneven surface or if pressure is applied from the underside of the set (e.g. placed on cables or other parts) the tray will not open/ close correctly: The CD is not centered above the turntable - the upcomming RCD-lift (item 439) will clamp the disc somewhere between table and magnet bracket (item507). After STOP/OPEN the CD might fall into the housing where a closing tray can damage it.
MODEL: CD1552
SYMPTOM: Tray motor (item 1004) overheated; Melted bottom around tray motor
CURE: CAUSE: Due to mechanical tolerances of the tray inner switch (item 1006), this switch is actuated too late. That is why the tray moves too far inside and causes a tension at the gear which lets the gear wheel (item 421) and the worm wheel (item 418) stuck together. Than the tray motor blocks and overheats. SOLUTION: Adjust gap between contacts of the inner tray switch and the middle contact. The distance should read 0.2 till 0.3 mm by bending contact spring of inner tray position. (In service information A93-368 this tray and adjust dimensions have been drawn.) Check each set brought in for repair on: Transistors 7520 till 7525 of motor bridge circuit and NFR resistor 3521 are OK. Gear wheel (item 421) and worm wheel (item 418) on mechanical damage. REMARKS : This publication will be followed by a service information A93-368.
MODEL: CD1552
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: CD160
SYMPTOM: Set will not go into PLAY mode with replacement CDM4 deck
CURE: It is possible that some early production versions of the above models which have a MAB8441P T012 microprocessor mounted on a sub-panel will not operate correctly when fitted with a replacement CDM4 deck (4822 691 30211). If the player is unable to find the first track and go into PLAY mode the servo microprocessor should be replaced with type MAB8441P T082, code number 4822 209 11416. This is carried out as follows: (i) Remove the decoder PCB from the cabinet. (ii)Remove the sub-panel and connector from the decoder. (iii) Unsolder the two leads from pins 6 and 7 of IC6304. (iv)Carefully transfer the crystal 1451 from the sub-panel to position 1301 on the decoder. (v) Check that surface mounted capacitors 2301 and 2302 are fitted on the decoder. (vi)Fit replacement IC MAB8441P T082 on the decoder and replace the panel in the cabinet.
MODEL: CD160
SYMPTOM: Replace CDM2 by CDM4
CURE: Replace CDM2 by CDM4 In case CDM2 has to be replaced by CDM4 (4822 691 30211) and only than as subassy with a)/T012 has been mounted, this subassy has to be replaced too by MAB8441/T02 (4822 209 11416). Otherwise the set does not function.
MODEL: CD162
SYMPTOM: The drawer does sometimes automaticaly opens after closing.
CURE: Check the drawer-end switch S1813 (4822 276 13066).
MODEL: CD162
SYMPTOM: Drawer inoperative.
CURE: Check Pos 104 (loose from drawer).
MODEL: CD162
SYMPTOM: Player totally inoperative. Drawer does not open.
CURE: Check voltage regulator IC7600 (4822 209 72487).
MODEL: CD162
SYMPTOM: Digit of display inoperative.
CURE: Check IC7701 (4822 209 62111).
MODEL: CD162
SYMPTOM: Does not read in TOC.
CURE: Check radial part. Replace CDM (4822 691 30209)
MODEL: CD162
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD162
SYMPTOM: Squeaking sound and does not play.
CURE: Check IC7840 (4822 209 31307).
MODEL: CD162
SYMPTOM: No sound at all.
CURE: Check decoder IC7031 (4822 209 30388).
MODEL: CD162
SYMPTOM: Sometimes CDM does not focus. Indication no disc.
CURE: Check CDM (4822 691 30209).
MODEL: CD162
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: CD163
SYMPTOM: Sometimes no display, set is totally inoperative.
CURE: Check soldering of L5703 loose.
MODEL: CD163
SYMPTOM: CDM is oscillating
CURE: Replace disc clamper assy. pos.108 by a modified (heavier) one
MODEL: CD163
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: CD163
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: CD163
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: CD163
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: CD164
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD164
SYMPTOM: Additional information to newsletter 21.06 CD
CURE: Additional information to newsletter 21.06 CD general, concerning transport keys (or transit screws). - In principle for all RCD disc drives (RCD1, RCD1.2, RCD2 and RCD3) and CDM mechanisms (CDM2, CDM4, CDM9, CDM12, CDM14) there is no additional protection necessary for transportation. The reason why in spite of it transit screws are used in some sets is that in these sets the tray mechanism has to be protected against shocks. Further it is very much dependent on the behaviour of the used packaging. It can be assumed that sets from the refurbishing departments will be distributed via mail in single packaging and than it will be recommended to use the transit screws in the sets where they were also used in the original status sent by the factory. Partslist, manual: CD LOADER sets Transit screw AK601, AK630, TK603, TK306, TK610, CD162, CD1644822 535 80855 CD600, CD610, CD620, CD630, CD820, CD830, CD8404822 535 80806 CDD882, CD85, CD8804822 417 20163 CD80 4822 417 20187 AK791, AK796, AK798, FCD585, TK719 4822 502 13144 AK701, AK703, AK729, AK730, CD1552, CDC250, CDC345,4822 402 61082 CDC550, CDC552, CDC790, CDC792, CDC972 4822 402 61082 FW2017 4822 500 10471 CD640, CD660, CD670, CD770 4822 402 61082
MODEL: CD165
SYMPTOM: Squeaking sound during opening and closing the tray.
CURE: Pos.87 greased.
MODEL: CD165
SYMPTOM: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS
CURE: CDM12: OBJECTIVE LENS CLEANING INSTRUCTIONS - WARNING! PRINCIPLE: AVOID CLEANING THE LENS! Cleaning the lens is not completely harmless. Only if the lens is obviously polluted with fingerprints, it can be cleaned with a cleaning solvent. This prescription applies exclusively to plastic lenses. DUST PARTICLES Dust can easily be removed by a blowbrush. FINGERPRINTS, GREASE ETC... Needed: 1. Cleaning solvent: e.g. Kodak lens cleaner CAT 176 7136, which is available in most photoshops. Cleaning solvent B4-No2 can be ordered with service codenumber 4822 389 10024. ALCOHOL MAY NOT BE USED for plastic lenses. Note:Never use cleaning solvents containing isopropanol. For that reason the fluid of the compact disc cleaning set SBC3540 (4822 389 20036) MAY NOT BE USED to clean the lens. 2. Absorbing paper 3. Padstick Action:Take a padstick and immerse it into the cleaning solvent until it is soaked. Then wet the lens surface with the soaked padstick , rotate it slowly without force. The solvent will dissolve fingerprints, grease etc.., rotation will help mechanically. Finally the lens will be filled with the dirty cleaning solvent. Incline the lens (CDM12 mechanism) and suck up the solvent with the edge of the absorbing paper until the fluid has been removed. The remnants of the solvent will evaporate.
MODEL: CD165
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of other service hints to solve some symptoms are given. A survey of a possible fault cause, how to check and solve this fault is given. SERVICE HINTS CDM12.1 SYMPTOM: NO FUNCTION - gives error - no focus - no T.O.C. CAUSE grease or dirt on lens CHECK visual check with magnifying glass or microscope ACTION Clean lens, see cleaning instructions CAUSE dirt in airgap of actuator CHECK service mode 1: check actuator movement, visual check of actuator. ACTION Remove dirt from airgap. CAUSE sledge switch (3) loose CHECK check if screw (4) has been tightened. ACTION Tighten screw. CAUSE Soldering on Printed Circuit Board of pick-up unit (20) CHECK visual check of soldering ACTION Correct soldering CAUSE dirt on flex connection (13) CHECK visual check of flex connection ACTION Clean flex connections CAUSE glue on slide path of pick-up unit. CHECK visual check of slide path. ACTION Remove glue from slide path. SYMPTOM CD STOPS IN PLAY MODE -stops after a while -stops playing CAUSE burr on gear-wheel(6) CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM NOISE DURING SLED MOVEMENT. CAUSE gear-wheel (6) damaged. CHECK Visual check of gear-wheel. ACTION Replace gear-wheel. Service code: 4822 522 33537 SYMPTOM DOES NOT PLAY END OF DISC CAUSE gear-wheel (6) badly moulded CHECK visual check of gear-wheel ACTION Replace gear-wheel. Service code: 4822 522 33537 CAUSE rubber tulle (10) poorly assembled CHECK visual check tulle position. ACTION Correct position. CAUSE speedfix (12) poorly assembled. CHECK visual check speedfix position. ACTION Correct position. CAUSE glue on slide path CHECK visual check of slide path ACTION Remove glue. SYMPTOM NO T.O.C. (Table of contents) RATTLING NOISE CAUSE rubber tulle (9) poorly assembled. CHECK visual check tulle position ACTION Correct position. CAUSE speedfix (11) poorly assembled. CHECK visual check speedfix position ACTION Correct position. (..) : item number in exploded view of CDM. In the next the item numbers with service codenumbers are stated. Item Service codenumbedescription 1..204822 691 30278 CDM12.1 complete 34822 277 11466 Slide switch 64822 522 33537 gear-wheel 74822 361 30457 sledge motor
MODEL: CD165
SYMPTOM: Introduction of turntable support ring on CDM12.1
CURE: Introduction of turntable support ring on CDM12.1 - To prevent that the turntable of the CDM12.1 mechanism (4822 691 30278) will be pressed down, a turntable support ring has been introduced from week 9532 onwards. The factory label code on this modified CDM12.1 reads 1VU02.
MODEL: CD165
SYMPTOM: Service hints on CDM12.1 mechanical disc drive
CURE: Service hints on CDM12.1 mechanical disc drive unit (4822 691 30278) Below a survey of known fieldproblems (symptom) and the repair hints are given. In case the hint has been published already the publication has been given in column 'published'. Furthermore the survey shows the corrective actions with their introduction dates (production week) and the way to recognize the modified CDM (see column 'change code'). SURVEY FIELDPROBLEMS CDM12.1 SYMPTOM Sledge motor loose PUBLISHED no SERVICE HINTFix sledge motor with double sided adhesive tape of 0.1 mm. CORRECTIVE ACTION Implementation of double sided adhesive tape to glue the motor. CHANGE CODE 1 SV03 PRODUCTION WEEK 9434 SYMPTOM Turntable loose PUBLISHED no SERVICE HINTReplace CDM mechanism; CDM12.1 is available with 4822 691 30278 CORRECTIVE ACTION 100% check of CDM CHANGE CODE unchanged PRODUCTION WEEK 9440 CORRECTIVE ACTION 2 extra buffers on top of packaging. Gluing process improved. CHANGE CODE unchanged PRODUCTION WEEK 9445 SYMPTOM Zooming sound PUBLISHED Newsletter 54, 55, 57. SERVICE HINT a) Replace magnet clamper by a new clamper with an extra weight. short loader (1): 4822 691 30358. cd loader (2): 4822 691 30358. cdc 5 disc changer (3): 4822 532 52655. CORRECTIVE ACTION Introduction of clamper with additional weight. CHANGE CODE unchanged PRODUCTION WEEK 9445 CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9506 SERVICE HINT (b)For the cdc 7 disc changer module (4) a heavier clamper has been applied, the zooming sound complaint is not expected. In case of zooming sound replace CDM12.1 (4822 691 30278). CORRECTIVE ACTION Gluing process of actuator improved. CHANGE CODE 1 VU01 PRODUCTION WEEK 9510 (1) Applied in sets a.o. AS440, AS445, AS450, AS455, AS540, AS545, AS550, AZ8640, CCD66, FW17, FW24, FW26, FW46, FW47, FW68 (2) Applied in sets a.o. CD163, CD165, CD690, CD692, CD710, CD720, CD721, CD731, CD732, CD733, CD740, CD750, CD911, CD910, CD920, CD921, FW26 (3) Applied in sets a.o. AS640, CDC263, CDC265, CDC741, CDC745, CDC751, CDC794, CDC796, CDC916, CDC926, CDC936 (4) Applied in sets a.o. FW14, FW15, FW36, FW56
MODEL: CD210
SYMPTOM: Flickering LCD Display Backlight
CURE: The above fault is seen when the load on the power supply changes e.g. during opening or closing of the loading tray.The cause is usually R3783 (1 ohm) going high in value.This resistor is shown in square C4 on the component layout drawing on page 4-4a of the manual but has been omitted from the circuit diagram on page 4-2a. The part number of R3783 is 4822 052 10108.
MODEL: CD210
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD210
SYMPTOM: Partslist, Manual
CURE: Partslist, Manual - In the partslist, page 5-2A, the codenumber of the mains transformer is wrong. It should read 4822 146 30781 instead of 4822 146 30701.
MODEL: CD210
SYMPTOM: Partslist
CURE: Partslist - On page 2-3a item 223 should read 4822 402 61207 instead of 4822 401 61207. Item 233 should read 4822 492 52123 instead of 4822 492 51935.
MODEL: CD210
SYMPTOM: Microprocessor
CURE: Microprocessor The software of microprocessor MC68HC05C8P/ZC99684 (with mark MONO P108 and servicecodenumber 4822 209 6011) has been improved. It was possible that the music did not start exactly at the beginning, but one track ahead. So, if the set was switched from pause-mode into play-mode the lightpen could jump one track further. This has been solved with the new microprocessor MC68HC05C8P/ZC99698 with mark MONO P113 and servicecodenumber 4822 209 61894.
MODEL: CD210
SYMPTOM: Lubrication of ball bearing in disc hold down asse
CURE: Lubrication of ball bearing in disc hold down assembly Whenever any of the above or similar models are brought in for repair it is recommended that a small amount of grease is applied to the ball bearing in the disc hold down assembly. A suitable lubricant is Molykote PG65 which may be ordered under part number 4822 390 20139.
MODEL: CD210
SYMPTOM: Manual
CURE: Manual To change CD210/00R/05R/60R/65R to 110 V, the following actions should be taken : *Replace the transformer by type 4822 146 30883 *Remove jumper wire 202 for /00R,/60R *Remove jumper wire 203 for /05R,/65R *Connect an insulated wire between points A and 2 *Replace the fuse by a 315mA-t fuse. 4822 30014. With above actions it is possible to make CD210 suitable for 110V. However it is recommended to replace the transformer and to mount a voltage selector. In this case both the jumper wires 202 and 203 should not be present. The voltage selector 4822 277 21366 can be mounted in the rear of the cabinet (after removing a prepared piece of the cabinet). The service codenumber for the fuse-carrier is 4822 255 41023.
MODEL: CD210
SYMPTOM: Spare part information
CURE: Spare part information Microprocessor item 6530 service codenumber 4822 209 61894. When ordering 4822 209 61894, an OTP 4822 900 10837 loaded with software MONO P113 for CD210 will be delivered.
MODEL: CD230
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD230
SYMPTOM: Manual
CURE: Manual To prevent plops by switching on the emphasis, resistor 3653 is modified from 10 kOhm into 100 kOhm.
MODEL: CD230
SYMPTOM: Partslist, manual
CURE: Partslist, manual - IC 7590 (4822 209 62367) might have two different stamps: MC68HCO5C9P/ZC409026 or MC68HC05D9P/ZC400002. Both ICs are identical.
MODEL: CD230
SYMPTOM: Transportkeys
CURE: Transportkeys - Transporttests in the factory have resulted in the decision to delete the transport screws (keys). This has been published in Service Newsletter 16.06. For this reason the bottom plate and the main PCB are no longer manufactured with holes. Because of the need of the keys in the service measuring position, the holes in the main PCB can be cut off. Hereafter the keys can be positioned to keep the CDM in the right position. The service codenumber for the keys is 4822 535 71262.
MODEL: CD260
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD262
SYMPTOM: Interrupting music
CURE: In case of interrupting music it is recommended to replace the bearing of the disc hold down. After replacement of the bearing (4822 466 92257) and the ball (4822 520 40177) should be greased with molycote PG65 (4822 390 20139)
MODEL: CD310
SYMPTOM: Turntable motor running when tray is opened
CURE: It may be found with the above model that the turntable motor is running when the disc loading tray is opened.To overcome this problem the following modification should be carried out. Remove transistor 7831 and fit a wire link between the collector and emitter connections on the PCB.The +5B line to IC7805 will now be permanently connected to the +5 volt supply.
MODEL: CD320
SYMPTOM: Turntable motor running when tray is opened
CURE: It may be found with the above model that the turntable motor is running when the disc loading tray is opened.To overcome this problem the following modification should be carried out. Remove transistor 7831 and fit a wire link between the collector and emitter connections on the PCB.The +5B line to IC7805 will now be permanently connected to the +5 volt supply.
MODEL: CD320
SYMPTOM: Service hint
CURE: Service hint When reading a disc, the display shows an ERROR message. The set is not able to read the T.O.C. and will not start to play. Hint: Verify the production period on the CDM Paper label: 9135 upto and including 9138 Inkjetmark: 9134.4A upto and including 9138.4A During this period wrong grease is used causing too high friction of the swing arm. In that case the CDM has to be replaced. From 9139 or 9138.4B onwards, this error is retrieved.
MODEL: CD335
SYMPTOM: Service hint
CURE: Service hint When reading a disc, the display shows an ERROR message. The set is not able to read the T.O.C. and will not start to play. Hint: Verify the production period on the CDM Paper label: 9135 upto and including 9138 Inkjetmark: 9134.4A upto and including 9138.4A During this period wrong grease is used causing too high friction of the swing arm. In that case the CDM has to be replaced. From 9139 or 9138.4B onwards, this error is retrieved.
MODEL: CD340
SYMPTOM: Clicks in DCC recording at CD-sync mode with DCC380.
CURE: Complaint description. When DCC380 is used in combination with CD340, in CD-sync mode it happens that at the moment, on the DCC tape the marker is written, a tick is audible and the sound drops for a while. During play back of the DCC tape this tick and sound drop is audible too. The phenomenon is very well audible when recording CDs with very short or no pause between two tracks. Cause description. This complaint is caused by the intentionally inserted pause. (When the CD-player is started with CD-dubbing command, it produces approximately 3 seconds pause between the tracks by itself to enable track search function of the cassette players). No corrective action can be taken: It is impossible to switch-off the pause. If the customer wants to copy the CD in its original format one has to do it manually by use of APPEND REC function on DCC and title programming on CD player.
MODEL: CD340
SYMPTOM: Display totally inoperative. Other functions O.K.
CURE: Check display processor IC7970 (4822 209 72226).
MODEL: CD340
SYMPTOM: Squeaking sound after some time.
CURE: Check CDM (4822 691 30209).
MODEL: CD340
SYMPTOM: Ticking sound from player.
CURE: Check whether ring pos 108 stucks against pos 104. Remount ring pos. 108 and spring 106.
MODEL: CD350
SYMPTOM: Correction to the service manual
CURE: Correction to the service manual In Service Manual 4822 725 20649, page 6-7-2, the published service codenumber and type of microprocessor 6052 is wrong. The service code and type should read: itemServicecodeDescription 60524822 209 11445 MC6805L38/ZC89506 The supplied uP will be marked XC89506, a embedded programmed uP.
MODEL: CD360
SYMPTOM: Set will not go into PLAY mode with replacement CDM4 deck
CURE: It is possible that some early production versions of the above models which have a MAB8441P T012 microprocessor mounted on a sub-panel will not operate correctly when fitted with a replacement CDM4 deck (4822 691 30211). If the player is unable to find the first track and go into PLAY mode the servo microprocessor should be replaced with type MAB8441P T082, code number 4822 209 11416. This is carried out as follows: (i) Remove the decoder PCB from the cabinet. (ii)Remove the sub-panel and connector from the decoder. (iii) Unsolder the two leads from pins 6 and 7 of IC6304. (iv)Carefully transfer the crystal 1451 from the sub-panel to position 1301 on the decoder. (v) Check that surface mounted capacitors 2301 and 2302 are fitted on the decoder. (vi)Fit replacement IC MAB8441P T082 on the decoder and replace the panel in the cabinet.
MODEL: CD371
SYMPTOM: Mechanical noise and vibration of the deck mechanism during play
CURE: It has been found that the above fault symptoms may be caused by wear at the centre bearing point on the top hold down cover, shown as item 113 in the mechanical parts diagram in the service manual. To reduce wear and mechanical noise replacement hold down discs, item 118, and discs fitted to later production players now have a highly polished top bearing surface. It is recommended therefore that when replacing a worn top cover the disc is replaced at the same time. The three centering legs of the disc carrier, item 117, should be carefully checked for wear or distortion, if there is any doubt this item should also be replaced. A small amount of silicone grease should be applied to the bearing surfaces during reassembly. Part numbers are as follows : Hold down cover item 113 4822 444 60467 Hold down discitem 118 4822 462 50383 Disc carrieritem 117 4822 532 11547 Silicone grease4822 390 20011
MODEL: CD373
SYMPTOM: Mechanical noise and vibration of the deck mechanism during play
CURE: It has been found that the above fault symptoms may be caused by wear at the centre bearing point on the top hold down cover, shown as item 113 in the mechanical parts diagram in the service manual. To reduce wear and mechanical noise replacement hold down discs, item 118, and discs fitted to later production players now have a highly polished top bearing surface. It is recommended therefore that when replacing a worn top cover the disc is replaced at the same time. The three centering legs of the disc carrier, item 117, should be carefully checked for wear or distortion, if there is any doubt this item should also be replaced. A small amount of silicone grease should be applied to the bearing surfaces during reassembly. Part numbers are as follows : Hold down cover item 113 4822 444 60467 Hold down discitem 118 4822 462 50383 Disc carrieritem 117 4822 532 11547 Silicone grease4822 390 20011
MODEL: CD373
SYMPTOM: Additional circuit to prevent loss of FTS memory
CURE: Additional circuit to prevent loss of FTS memory To prevent loss of data in the FTS memory a circuit has been added as shown in the diagram.The circuit suppresses clock pulses for approximately 200mS during the switch-on procedure of the set.
MODEL: CD380
SYMPTOM: Intermittent failure to read table of contents
CURE: Intermittent operation during PLAY. It has been found that the above fault symptoms may be caused by dry joints on surface mounted devices IC6501 (TDA8808) and IC6503 (TDA8809). The PCB connections should be inspected and carefully resoldered as necessary if this type of fault occurs.
MODEL: CD380
SYMPTOM: Lubrication of ball bearing in disc hold down asse
CURE: Lubrication of ball bearing in disc hold down assembly Whenever any of the above or similar models are brought in for repair it is recommended that a small amount of grease is applied to the ball bearing in the disc hold down assembly. A suitable lubricant is Molykote PG65 which may be ordered under part number 4822 390 20139.
MODEL: CD380
SYMPTOM: Ammended instructions for entering service test
CURE: Ammended instructions for entering service test routine. SERVICE TEST PROGRAMME The method of entering the service test routine will depend on the version of microprocessor used in the set.To enter the service routine the player should be switched on with the following push buttons depressed. Version P104:PREVIOUS TRACK + NEXT TRACK + STOP Version P105:PAUSE + SEARCH FORWARD + REPEAT
MODEL: CD380
SYMPTOM: Loading mechanism called: loading 88
CURE: Loading mechanism called: loading 88, - Frame (item 502) will be changed from week 9015 onwards. The new frame (4822 464 50822) is not compatible with the old one (4822 464 50715). Both frames are not interchangeable without a modification.As long as the old frame is available the old frame can be exchanged without a modification. If the old frame is no longer in stock, it has to b