Cleaning a recently purchased Silverball Mania. Game for the most part played upon receipt and set up.
After playing for a few days the machine now does not play. The start up process works fine, MPU self-test diode flashes once and then the six additional times per the manual. Displays light up appropriately, all the lights, GI and display light and stay lit, then, whether I try and start a game or not, after about 20-30 seconds the "game over" tune plays and the game is dead. Lights remain on but nothing reacts.
It won't let me run the manual diagnostic test.
Early on, when the self-diagnostic test did work, it did show that switch 34 was not working properly (pop-bumpers). I have also had problems with the sling firing and not stopping, although I think that was solved by adjusting the rubber ring and the switch.
Thoughts?