Always replace both halves of a connector
While the boards are out, check every header; replace any tarnished or bent header pins, and always renew the housing pins too, since a bad half wears out the new one.
Systems
Related tips
- Connector parts to keep for System 3-7 games
- Unplug connectors by the housing
- Replace the 3J6 logic power connector
- Replace the 40-pin interboard female connector
- Removing the old interboard female connector
- Replace CPU board power connector 1J2
- Replace IDC connectors on Firepower and later with crimp
- Always replace the driver board's 40-pin female interconnector
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part One, Clay Harrell (pinrepair.com)