Readjusted the tilt to try and "subdue" my sons aggressiveness with the machine. Regardless, after the first time it tilted, NOW, when ever the ball rolls down shoot A, the whole game "tilts".

Bally 1980 Fireball II

Any ideas? Thanks!

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WOW, thanks. I shut off the game and ran errands for a couple of hours, came back, turned in on, working fine now. I'm thinking it's doubtful a backwards diode as I've played plenty of games on it with no issues. Assuming it happens again, and I'm sure it will, anything more specific on what to check in terms of switch problems?

Thanks so much, I really appreciate the help.