Rectifier board swap: the white wire soldered to the board is the GI bus (J1 pin 8)

When fitting a replacement rectifier board, a white wire soldered straight onto the old board, rather than into the connector, is the general illumination bus. Its pin (J1 pin 8) had burnt away, so it was soldered to the pad. On the new board it goes in J1 pin 8. Check the old board for other missing pins and hacks before transferring the wiring, since the schematic's wire colours may not match the game.

Unplug the game before working on the rectifier board: it carries transformer AC and the high voltage display supply.

Systems

• Stern MPU-200

Games

• Split Second

Related tips

• Only the knocker fires and the lower playfield GI is out: replace the rectifier board
• 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
• Rectifier test point ranges with fuse and rectifier
• No +12 V at rectifier board TP3

Source: Pinball Repair help group!! (Facebook group)