The switch test cannot check pop and sling trigger switches
Special solenoid trigger switches are not in the switch matrix, so they never appear in the switch test. Only the separate scoring switch on each device does.
Systems
Related tips
- Pop bumpers do not show in switch test: pull the ring down to test them
- Which switches are not in the switch matrix
- Pop bumper or sling fires but does not score
- Switch test and audit display behaviour
- Board or playfield? The switch test jumper method
- Column 1 switches and switch wire colours
- Cleaning gold leaf switches
- Logic-probe the switch matrix
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)