The Diner I'm working on had an AC Relay error in test mode. All flashers were working in test but some weren't during game play. I replaced U1 and the error went away. However, now the cup flashers aren't working. Everything else seems to be working fine.
I have tested all the parts in that particular circuit and they are testing good (Q23, D40, Q2 etc). I don't seem to be getting voltage to the cup flashers during test mode but will verify again.
This is the weird part and where I could use help. I have continuity between ALL of the flashers!! I don't think this is expected but I'm not sure?
If this is not expected, I must have a short somewhere on the playfield but I wanted to check in with the experts here.