Where the 43 V solenoid supply leaves the rectifier board
J1 pin 6 feeds the flipper coils on a brown wire. J3 pin 9 goes to SDB J3 pin 5 for the flipper relay. J3 pin 12 goes to MPU J4 pin 15 and on to R113 (zero-cross). J3 pin 13 feeds a backbox knocker where fitted. J2 pin 2 feeds the cabinet coin lockout coils, a cabinet knocker, and the chime unit on early games.
Systems
Related tips
- Solenoid driver TP5 under 13 V
- What each rectifier on the board feeds
- Rectifier board test point voltages
- The three Bally rectifier boards
- Upgrading the AS2518-18 / -49 rectifier board
- Bench testing a rebuilt rectifier board
- Checking the pre-Xenon supply with the game unplugged from it
- Rectifier test point ranges with fuse and rectifier
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part Three, Clay Harrell (pinrepair.com)