Where the flipper fuse is by generation

System 3 and early System 4 games (World Cup until Flash) fuse the flippers under the playfield near the flippers, and the power supply F4 holder is unused. From Flash, F4 on the power supply is the flipper fuse. Firepower II, Laser Cue and Star Light do not use F4; their flipper supply board has F2, 5 A slow-blow.

Systems

• Williams System 3
• Williams System 4
• Williams System 6 / 6A
• Williams System 7

Games

• Firepower II
• Laser Cue
• Star Light

Related tips

• System 7 fuse chart
• Where the fuses are
• How flipper power is routed by generation
• Three flipper mechanism generations
• Second-generation flipper rebuild: assemblies
• Where the sound board and GI fuses are by generation
• System 3 fuse chart
• System 4 fuse chart

Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part One, Clay Harrell (pinrepair.com)