Williams MPU Board For System 11C Machines
Williams MPU Board For System 11C Machines

Stock Status:(Out of Stock)

Availability:: No Longer Manufactured, please use MPU9211
Product Code: MPU011C

MPU Board*:

No Longer Available, please use MPU9211 click here MPU9211

This completely redesigned board replaces Williams System 11C MPU / Driver Boards part number D-11883-xxx (where xxx is the game number).

Our boards are plug-and-play compatible with the original board set. No special tools or mounting tricks are required and the swap can be done by even the most novice of "installers".

Benefits over the original Williams board:

- Williams WPC type mounting holes for ease of install / uninstall.

- No batteries required for memory retention (no acid damage, ever!)

- Simplified driver design using logic level FETs

- Beefed up switch matrix drive for better durability (good to 100V back drive)

In addition:

- Board is made with 100% through hole components.

- No custom parts used in this design (all parts can be purchased through usual suspects)

- Major component designators carried over from original design so original schematics can be used.

- Board comes with complete set of schematics


This board is the same basic board as our part number MPU004; However, slight modifications (jumpers, pin clips) have been made to make it exactly the same as the original Williams / Bally board.


We offer this board without the game ROM(s) and Microprocessor. This is done to keep the price of the board as low as possible. The Game ROMs and Microprocessor rarely go bad on the original board and are socketed so they can be moved from the original board to this board with minimum of effort. However if you would like a complete board with these chips and ready to plug and play, please select the option from the drop-down menu. Please advise which game it is to be used in with the comments box.

Game Listing

Bugs Bunny Birthday Ball


Dr. Dude (System 11 version)

Game Show

Pool Sharks


Riverboat Gambler

Roller Games

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