Gottlieb Smart Switches (piezo)
Later dot matrix games use piezo-film Smart Switches with no adjustment and no wear parts. Green-board versions are for standups and rollovers and trigger as the film springs back; blue-board versions are for pop bumpers only and trigger on first flex. Don't swap them: a blue one in a kickback gives short kicks.
Systems
Related tips
- Smart Switch pin 1 and pin 2
- What is inside a Smart Switch
- A failed Smart Switch can be replaced by a plain switch
- Switch diodes are on the A17 board, not the switches
- Catching random switch closures
- Lamp and switch matrix size and drivers
- System 3 slam switch is normally open
Source: Repairing Gottlieb System 3 Electronic Pinball Games from 1989 to 1996, Clay Harrell (pinrepair.com)