CPU board connector A1J6 (playfield switch matrix)
Pins 1 to 8 are switch strobes 0 to 7, pin 9 is ground for the pop bumper driver boards, pins 10 to 17 are switch returns 0 to 7 and pin 18 is +5 V for the pop bumper driver boards.
Systems
Related tips
- Coils lock on when the switch matrix connector is loose
- System 80 CPU board connectors and what they carry
- Which CPU connector housings can be reused
- CPU board connector A1J4 (to the driver board)
- Molex housings and pins for the System 80 CPU connectors
- EDAC solder-lug substitutes for the CPU connectors
- CPU board connectors A1J1 to A1J3 (power and displays)
- Card-edge connectors are System 80's weak point
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part Two, Clay Harrell (pinrepair.com)