Make sure the power cord has its ground prong
The cord must be three-wire; replace a cord or plug whose ground pin has been cut off. The green ground wire goes to the line filter box in the cabinet bottom.
Line voltage (120 V AC) is present on the rectifier board and its J2 connector; unplug the game before touching it.
Systems
Related tips
- How the pre-Xenon power supply works
- Safe first power-up of an unknown game
- Game totally dead after running a vacuum from the service outlet: power cord
- Differences between the -54 and -132 power modules
- Replacement power supply board won't run the game: J2 ground pin not linked
- Line filter, power switch and service outlet
- No voltage at any rectifier board test point: burnt mains wire to the transformer
- Touching the tilt or cabinet metal fires a kicker: broken earth wire in the power cord
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)