Rectifier board J3 pin functions (pre-Xenon backbox transformer)
Pin 8: 12 V DC to SDB J3 pin 12. Pin 17: 5 V ground to SDB J3 pin 10. Pin 15: 12 V ground to SDB J3 pin 21. Pin 5: 230 V DC to the SDB, pin 16 its ground (page 64). Pins 10 and 11: 7.3 V AC GI, pin 2 GI return. Pin 6: 5.4 V DC controlled-lamp power, pins 3, 4, 14 its ground. Burned .156" pins here are common on pre-Xenon games: replace the header pins and use Trifurcon housing pins.
Systems
Related tips
- Pre-Xenon transformer to rectifier board wiring
- Pre-Xenon rectifier board outputs by connector
- Replace browned rectifier header pins and housing pins together
- Burnt rectifier J3 pins 8 and 17
- Early Bally SS rectifier board: worn ground mounting pad and cracked header pins
- AS2518-18/-49 connector functions
- Only the GI lights and the MPU won't boot: bad connection at J3
- Rectifier board J3 (to backbox boards) pins
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part Three, Clay Harrell (pinrepair.com)