Fit a 120 V plug, line fuse and MOV

Steps

• Cut off the old plug and fit a 3-prong 120 V plug: blue and brown wires to the power blades, the green/white striped wire to ground.
• In the power box inside the coin door (by the volume control), fit an 8 A slow-blow main fuse.
• For games from 206 to 230 V countries, replace the ceramic disc MOV in the same box with a 130 V part; the original 250 V part protects only against much bigger surges.
• At power-on the game shows its country setting.

Line voltage is present in the power box, line cord and transformer wiring; unplug the game before working there.

Systems

• Data East CPU Version 1/2
• Data East CPU Version 3
• Data East/Sega CPU Version 3b

Related tips

• Dot matrix shows lines or lights solid, and no CPU lamps work
• Backbox bridges, filter capacitors and fuses
• Parts for converting an export Data East or Sega game to 120 V

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