Auxiliary power driver board fuses
F1 5 A slingshots; F2 not used; F3 2.5 A pop bumpers; F4 2.5 A; F5 2 A right flipper; F6 2 A left flipper; F7 4 A flipper bridge main supply; F8 7 A special solenoid main supply. All slow-blow; check your game manual, as values vary.
Systems
Related tips
- What the System 11 auxiliary power driver board does
- What the auxiliary power driver board holds
- Testing coil diodes on the auxiliary power driver board
- Outhole, Spook House target reset and flashers all dead: blown fuse on the aux board
- Circuit dead through the auxiliary power driver board: open zero-ohm jumpers
- CPU and driver board transistors by position
- Testing driver transistors in diode mode (board out of game)
- When a driver fails, replace its pre-driver as well
Source: Repairing Williams System 11 Pinball 1986 to 1990, Deel 1, Clay Harrell (pinrepair.com)