Was playing fine as always, but then on the third ball everything died out on me except the lights. Flippers stopped working, no more sounds, and the scoreboard went crazy. The ball drained and that was it. Nothing else ever happened. I turned it off and on again but it was stuck just like that. I can't use any of the start game buttons or buttons inside the coin door like the menu and credit switches.
I've unplugged and checked fuses but I don't see anything out of the ordinary. Is there anything in particular I should be looking for?
The display will change the messed up pattern sometimes when it's turned on, but here's an idea of what it looks like now.