Judging battery corrosion damage
If the corrosion stays on the battery holder and has not reached the board, the board is probably fine and the holder can be replaced cheaply. Corrosion on the board itself keeps spreading even after the battery is removed, and may be hard to see until the board is out and both sides are inspected.
Battery leakage is corrosive and toxic; handle with care.
Systems
- Williams System 3
- Williams System 4
- Williams System 6 / 6A
- Williams System 7
- Williams System 9
- Williams System 11
- Williams System 11A
- Williams System 11B
- Williams System 11C
- WPC Alpha-Numeric
- WPC Dot Matrix
- WPC Fliptronics
- WPC DCS
- WPC-Security (WPC-S)
- WPC-95
- Bally MPU AS-2518-17
- Bally MPU AS-2518-35
- Stern MPU-100
- Stern MPU-200
- Bally 6803
- Gottlieb System 1
- Gottlieb System 80
- Gottlieb System 80A
- Gottlieb System 80B
- Gottlieb System 3
- Data East CPU Version 1/2
- Data East CPU Version 3
- Data East/Sega CPU Version 3b
- Capcom
Related tips
- Move the batteries off the board
- Repairing battery corrosion on the CPU board
- Repair battery corrosion on the CPU board
- Repairing battery corrosion on the CPU board
- CPU will not boot after battery corrosion
- Clean battery corrosion off a CPU board
- Clean up battery corrosion on a System 80 CPU board
- Clean battery corrosion before fitting new parts
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)