Williams/Bally System 9, 11, 11A and 11B, MPU Board #MPU9211

Williams/Bally System 9, 11, 11A and 11B, MPU Board #MPU9211
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Price: $409.95
Product ID : PMPU-0004
Manufacturer: Rottendog Amusements
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For your protection you must select a shipping insurance option from the drop down menu above. The Pinball Wizard packages these sensitive electronics very well. However there is a chance they can be lost or damaged during shipping. We recommend you select this option for your own protection.

You can decline insurance at your own risk

- This completely redesigned board replaces Williams System 9, 11, 11A and 11B  MPU / Driver Boards. Part numbers D-10534-xxx, D-10881-xxx, D-11883-xxx (where xxx is the game number).

Rottendog 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"

Requires game ROMs and processor to be swapped over from your original board. On games Comet, Sorcerer, and Space Shuttle the board must be purchased with new software. The existing eproms will not work in this board

Easy to install, comes with instructions, schematics and NV Ram so there is never a need for a backup battery
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

Note:  This board can also function for Williams System 11C games however a less expensive alternative is our part number MPU011C

Note:  This board is offered without game ROMs and Microprocessors.  This is done to keep the price of the board as low as possible.  The Game ROMs and Microprocessors rarely go bad and are socketed so they can be moved from the original board to our board with minimum of effort.

However, i
f you need the game eproms and Microprocessors with this board, select the them from the drop down menu above. Please note there will be an added cost for this service

Note: For a total plug and play board you must select the 2 MPU chips along with the game and sound e-proms from the drop down menu's above

Game Listing:

Bad Cats

Banzai Run

Big Guns

Black Knight 2000

Comet (The original game ROMs (U27, U21 and U22) can NOT be put used with this MPU9211) You must buy this board with new 
programmed game roms. Please select from the drop down menu's above.



Elvira and the Party Monsters

F14 Tomcat


Grand Lizard

High Speed



Mousin Around


Police Force

Road Kings

Space Shuttle (The original game ROMs (U27, U21 and U22) can NOT be used with this MPU9211) You must buy this board with new 
programmed game roms. Please select from the drop down menu's above.

Space Station

Swords of Fury






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