Coin chute and game start faults are switch faults
If coins are not credited properly, or a game does not set up when the credit button is pressed, treat it as a switch problem and follow the switch checks (coin switch adjustment, isolation diodes, lockout wire, option switches).
Systems
Related tips
- A coin chute switch does not register or registers wrongly
- System 80 switch column 7 (coin door and tilt)
- All tilt switches show as switch 26
- How the switch matrix is scanned
- System 80 switch matrix diodes
- Testing the switch matrix inputs with the test EPROM
- Game check-out, part 6: switches, tilt and slam
- The three tilt switches on a System 80 game
Source: System 80 Service Manual, Gottlieb