A failed Smart Switch can be replaced by a plain switch
An ordinary leaf or micro switch can stand in for a dead Smart Switch, and needs no diode because the diodes are on the A17 board.
Systems
Related tips
- What is inside a Smart Switch
- Gottlieb Smart Switches (piezo)
- Switch diodes are on the A17 board, not the switches
- Catching random switch closures
- Proving the driver board's switch strobes
- 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)