Just joined the club, and love the game - my first pre-1990s machine.
I have an issue with my flippers where if I hold my right flipper button in, and then press the left flipper button, all power is lost to the upper left flipper (verified with DMM). Also, the switch test says switch 41 (upper flippers EOS) is stuck closed.
The upper flippers work fine other than this anomoly and a visual inspection of the EOS switches didn't find anything obvious.
Any ideas what to do next?