Williams System 11B and 11C System MPU board.
This MPU board fits all System 11B and 11C games. This board does NOT include the game ROMs or processor, you must transfer them from an existing board or purchase new.
Improved features:
- RAM IC comes socketed
- The 74154 IC location is socketed
- The 7408 ICs location are socketed
- All through hole components still easily sourced for ease of maintenance.
- OEM schematics can be used for troubleshooting.
- DESIGNED AND ASSEMBLED IN THE USA.
Reference:
- Williams / Midway / Bally (WMS / MDW / BLY): D-11883
- Williams / Midway / Bally (WMS / MDW / BLY): 5764-12206-00 (PC Board)