Late Gottlieb System 80A and 80B: transformer plug A12J6 jumpers
Later 80A games and all 80B games set the voltage with jumpers on plug A12J6. For 220 V: pin 5 to 6 and pin 8 to 10. For 120 V: pin 5 to 6, pin 9 to 10 and pin 8 to 12.
Line voltage is present in the power box, line cord and transformer wiring; unplug the game before working there.
Systems
Related tips
- Ground mod for the System 80B power supply
- System 80B +5 V drifts or jumps
- Set the 80B +5 V after replacing the trim pot
- While the 80B power supply is out
- Gottlieb System 80: 12 V on the regulator frame, fuse blows: missing insulator
- Which System 80 power supply boards are interchangeable
- Replacing the 80B power supply with a switching supply
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Three, Clay Harrell (pinrepair.com)