Hey all. My entire CN8-5 Switch Column is out on my JP. It was workin and recently stopped. I have checked everything under the playfield and I believe it is ok.
Then I tested voltage on the CN8 pins on the CPU and noticed that only CN8-5 had a voltage drop compared to all of the others.
Just wondering what I should test next and how to test it with my DMM. Obviously I'd rather repair a diode or transistor than a PIA. I'm just not sure where to go now. Thank you!