Pre-Xenon rectifier board outputs by connector
Line input: J2-6 high, J2-7 low, J2-10 ground. Display supply: +230 V out on J3-5 to driver A3 J3-6, back on J3-18 (A3 J3-3); the displays' +190 V return comes in on J3-16 (A1 J1-13). Logic supply: +11.9 V out on J3-8 to driver A3 J3-11,12, back on J3-2 (A3 J3-10); +5 V return on J3-15 (A3 J3-21,22). General illumination (7.3 V AC): playfield J1-5,8 with return J1-1,2; cabinet J2-1 with return J2-5; backbox J3-10,11 with return J3-1,2. Feature lamps (+5.4 V): playfield J1-7, backbox J3-6, returns J3-3,4,14. Coils (+43 V): playfield J1-6, cabinet J2-2, flipper relay J3-9 (A3 J3-5; through sound board J1-9 from Lost World on), MPU zero-cross J3-12 (A4 J4-15), backbox J3-13; returns J2-9 and J3-19.
Systems
Related tips
- Pre-Xenon transformer to rectifier board wiring
- Rectifier board J3 pin functions (pre-Xenon backbox transformer)
- Burnt rectifier J3 pins 8 and 17
- AS2518-18/-49 connector functions
- Replace browned rectifier header pins and housing pins together
- Early Bally SS rectifier board: worn ground mounting pad and cracked header pins
- Only the GI lights and the MPU won't boot: bad connection at J3
- Checking the pre-Xenon supply with the game unplugged from it
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)