I picked up an Old Chicago a couple of years ago. I immediately put it in storage and then brought it out for a playfield and cabinet restoration process about a year ago. I just tried starting it up for the first time. When I flip the power switch the lock relay energizes, score motor runs continuously, the drop target bank resets continuously and the saucer kicker fires continuously.
I don't have a copy of the schematics. I'm trying to use a pdf version. Any suggestions?