Bridge rectifiers to use on WPC-S and earlier driver boards

Keep a few 35 A, 200 V (or higher) bridge rectifiers with wire leads. The industry number is MB3502W; the Williams number is 5100-09690.

Systems

• WPC Alpha-Numeric
• WPC Dot Matrix
• WPC Fliptronics
• WPC DCS
• WPC-Security (WPC-S)

Related tips

• Replacement bridge rectifier and diode ratings
• Pre-WPC-95 resets: replace BR2, C5, C4 and the J101 pins together
• Bridge positions on WPC-S and earlier driver boards
• WPC power driver bridge rectifiers and +5 V regulator
• Replacing a driver board bridge rectifier without tearing traces
• Testing a bridge rectifier out of circuit
• Driver board LED4 off and the game won't boot (WPC-S and earlier)
• Driver board LED5 off: flasher 20 V missing (WPC-S and earlier)

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)