Power supply board fuses (late games)

F1 and F2: 7 A slow-blow, +5 V (9 V AC into the regulator). F3: not fitted on most games. F4: 8 A slow-blow, 18 V switched illumination. F5: 4 A slow-blow, 32 V low-power coils, bumpers and slingshots. F6: 5 A slow-blow, 32 V for the L/R relay coils and flashers.

Systems

• Data East CPU Version 3
• Data East/Sega CPU Version 3b

Related tips

• After a bulb change, coils dead and a flasher fires the knocker: blown supply fuse
• Dead or intermittent circuit from a cracked fuse clip
• Power supply board versions are not interchangeable
• Z1 on the power supply is a varistor, not a diac
• Power supply board versions and their +5 V filter capacitors
• Power supply CN1 pinout, pins 1-6
• Power supply CN1 pinout, pins 7-12
• Power supply gives no +5 V

Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part One, Clay Harrell (pinrepair.com)