Interconnect board and flipper power board fuses
Interconnect board: F1 to F4 are 5 A slow-blow general illumination fuses. Flipper power supply board (Fire! and earlier): F1 is 5 A slow-blow for the flipper bridge supply.
Systems
Related tips
- Two backbox GI strings out: the fuse was bad even though it tested fine in place
- Right flipper dead after a coil cooked: burnt trace on the interconnect board
- Flipper power supply board (Fire! and earlier)
- One or both flippers weak
- Power supply board fuses (typical game)
- Flippers and lock kickout dead with good fuses
- The interconnect board (Banzai Run and later)
- One flipper does not work at all
Source: Repairing Williams System 11 Pinball 1986 to 1990, Deel 1, Clay Harrell (pinrepair.com)