Hello,

I have an EBD on location. She has been a solid runner for years and the bowlers love the game. I think it reminds them of a time back when they were new. Its pretty cool to hear stories from way back when.
Anyways, I started having issues with the game where you would be playing and it would die mid game but a reboot would bring everything back and it would go weeks.
Yesterday when I was troubleshooting after it was off I powered it back up, started a game and flippers were working fine, as soon as it hit a coil (any pop bumper or sling) everything would die except the GI.

I have an altek MPU board, and I did replace the bridge rectifiers.

im not sure where to start or what I should be looking at.

Any advice would be greatly appreciated.