I'm working on a friend's "Slick Chick" and am chasing down a problem where the score motor just keeps running when the game is finished. I notice the O relay isn't de-energizing, and it's not a complicated circuit. I know where most of the switches are, but there's a n/c switch labeled "On Ball Release" over on the right side of the schematic. Where is that physically on the machine? Is the ball release that metal plate that rises to let the balls into the area where they can then be pushed into the shooter lane?
I know this is easy stuff for you old hands - I'm still learning Gottlieb's nomenclature.