This is the transistor list inside the PM2505:
In case you need to replace them 🙂
I replaced almost all of them in an effort to fix my multimeter. It did not function anymore. When I turned on the meter, the needle would go straight into the far right corner and do nothing, whatever the dial or switches setting.
After replacing the transistors and 2 caps that are on the board, I assembled it and when I wanted to test it I found out that one of the small metal balls that operate the function switch Volt-Ampère-Ohm had come loose and was freely inside the case. This is not good of course.
So I secured it in the correct place, the function switch is working as it should and the meter is also functioning perfectly! Happyhappyhappy!