Card-edge connectors are System 80's weak point
System 80 boards use card-edge connectors, mostly IDC type, which are less reliable than header-pin types and can carry battery leakage to other boards. At minimum replace the pins on the CPU board's bottom edge connectors and the power supply connectors; many driver board connectors need it too.
Systems
Related tips
- Clean corroded card-edge fingers and connectors
- System 80 CPU board connectors and what they carry
- Molex housings and pins for the System 80 CPU connectors
- Connector parts usually needed to repin one System 80 game
- Which CPU connector housings can be reused
- Which driver board connectors cause the most trouble
- CPU board connector A1J4 (to the driver board)
- CPU board connector A1J5 (coin door)
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)