Mount replacement bridges raised off the board
When fitting a new bridge rectifier, stand it 1/4" to 1/2" above the driver board so air can pass underneath and cool it.
Systems
Related tips
- Replacement bridge rectifier and diode ratings
- Testing a bridge rectifier out of circuit
- Bridge rectifiers to use on WPC-S and earlier driver boards
- Bridge positions on WPC-S and earlier driver boards
- Choosing a replacement driver board filter capacitor
- WPC power driver bridge rectifiers and +5 V regulator
- Replacing a driver board bridge rectifier without tearing traces
- Pre-WPC-95 bridges, filter caps and fuses by supply
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Two, Clay Harrell (pinrepair.com)