Connector numbering: what the prefix means
A connector such as 1J8-5 means board 1, connector 8, pin 5. Prefixes: 1 CPU, 2 interconnect (Banzai Run on), 3 power supply, 4 master display, 5 auxiliary power driver (Big Guns on; slave display on the earliest games). Wiring harnesses: 6 is the backbox, 7 the cabinet and 8 the playfield. Other boards: 9 insert, 10 sound, 11 audio, and 15 the flipper power supply on Fire! and earlier.
Systems
Related tips
- System 11 CPU board connectors
- Repairing a burnt GI connector properly
- Use crimp-on pins, ideally trifurcon, when re-pinning connectors
- .156 in header, housing and peg part numbers
- Roulette wheel not working: worn J15 connector on the interconnect board
- GI out on Banzai Run and later: burnt interconnect connector 2J6
Source: Repairing Williams System 11 Pinball 1986 to 1990, Deel 1, Clay Harrell (pinrepair.com)