Pre-Xenon transformer to rectifier board wiring
The rectifier board is wired straight to the transformer. Lugs 13/14 (orange/green 16 ga) to E9/E10: 7.8 V AC. Lugs 15/16 (white and white/black 18 ga) to E11/E12: 12 V AC. Lugs 17/18 (blue/black 16 ga) to E7/E8: 7.3 V AC. Lugs 2/6 (red and white/red 18 ga) to E3/E4: 49 V AC. Lugs 8/10 (green and white/green 18 ga) to E5/E6: 180 V AC. Bottom lugs 1/3 (red) to E1 and 9/11 (yellow) to E2 carry line voltage.
Line voltage (120 V AC) is present on the rectifier board and its J2 connector; unplug the game before touching it.
Systems
Related tips
- Rectifier board J3 pin functions (pre-Xenon backbox transformer)
- Pre-Xenon rectifier board outputs by connector
- Replace browned rectifier header pins and housing pins together
- Burnt rectifier J3 pins 8 and 17
- Only the GI lights and the MPU won't boot: bad connection at J3
- Early Bally SS rectifier board: worn ground mounting pad and cracked header pins
- Checking the pre-Xenon supply with the game unplugged from it
- What each rectifier on the board feeds
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)