All tilt switches show as switch 26
The ball roll tilt inside the coin door, the plumb bob and any weighted playfield tilts are normally open and wired in parallel; if any one is closed, switch 26 reads closed in the switch test. Moving a game often jams the ball roll or plumb bob tilt shut.
Systems
Related tips
- Game check-out, part 6: switches, tilt and slam
- The three tilt switches on a System 80 game
- System 80 switch column 7 (coin door and tilt)
- Switch test (step 18) shows switches closed
- How the switch matrix is scanned
- System 80 switch matrix diodes
- Testing the switch matrix inputs with the test EPROM
- Coin chute and game start faults are switch faults
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)