Picked up a 1964 Bally “Happy Tour” recently and slowing bringing it back. Once working I’ll start on the clean up and possible cabinet repaint. So far so good. Get her to now start up a game. Flippers, pops, mushrooms and slings all working. Not sure yet on the advanced tour stuff yet.
Problem - at each ball drain or when a 50 point roll over is made - the game starts over - score resets and back to ball 1. Never goes to ball 2.
Have the schematics but having troubles finding the culprit here. Score motor switch needing adjustment or a stepper unit not functioning correctly?