Gottlieb 80B repairs

alaird

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Anyone with experience with System 80B repairs? I have a Gottlieb/Premier ROCK machine that will turn on, some lights on playfield turn on and some flash, and the flippers work. Thats all it will do. No sound. No display.

There does not seem to be any battery acid damage to the pcb. Matter fo fact, I tried swapping all of the boards from another 80B.

Anyone have any thoughts?
 
Did you swap the power supply board?

I would start by checking all of the fuses throughout the game and then check voltages at all the boards.
 
I checked all of the fuses and tried swapping out the power supply board with another one that I bought from someone on klov. I was told that all of these boards came out of a working machine.
 
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