Better battery holder for System 11 CPU boards
The black plastic holder from WPC-S and later games, Williams A-15814, fits the System 11 CPU board directly and is better made than the original. A remote holder off the board is better still.
Systems
Related tips
- Replacement battery holder for the CPU board
- Checking the battery holder voltages on the CPU board
- Battery holder looks fine but makes no contact
- New batteries but still losing settings: test the holder
- Changing the CPU batteries without losing settings
- 'ADJUST FAILURE' every time it powers on: battery corrosion on the CPU board
- New CPU batteries go flat quickly
- Settings lost although the batteries are good (blocking diode D2)
Source: Repairing Williams System 11 Pinball 1986 to 1990, Part Three, Clay Harrell