I am working on a Baby Pac Man. This game has not ran in 20 years or so. I have fixed the issue with the rectifier and repined the MPU and a few connectors and got the game to boot. Game will pass communications test, Lamp test, and Solenoid test.
But the left flipper will not stop machine gunning when I push the left flipper button. EOS seems good and tight and both flipper have good power.
I also have no sound. Vidiot flashes 10 times. One speaker is blown took it out. Other speaker works when I hook a battery to it. I have continuity to the remote volume control. Amp chip go bad often?
Colors on this act a little weird specially after adjusting the sync pot. Just replace the pots seems to be the answer unless there is something I missed?
Game will not hold credits after being turned off. Battery was not on MPU and MPU is clean. But they never put a remote batter on this either. Can I use NVRam?