Spent about 5 hours going through the entire machine over the weekend. Inspected and (if needed) adjusted every relay and score reel in the game. Found quite a few problems on score reels, namely some loose connections or broken solder spots so I made all those repairs.
After that the machine wouldn’t do anything upon pushing credit button but would start a 4 player game if manually tripping the credit unit eos. Quickly figured out the 4 player problem (stepper was misadjusted). Then traced the circuit from credit button to coin relay and paid close attention to switches in that line: game over, reset relays.
Boom! All done.
Leave a Reply