Williams System 11A/B MPU/Driver Board

Williams System 11A/B MPU/Driver Board

In Stock
Qty:Buy Now
Item #: MPU011AB
This completely redesigned board replaces Williams/Bally System 11A/11B MPU/Driver Board part numbers: 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 board:

  • Williams type mounting holes for ease of installation
  • No batteries required for memory retention (no acid damage, ever!)
  • Simplified driver design using logic level FETs
  • Upgraded switch matrix drive for better durablity (good to 100v back drive)
In addition:
  • Board is made with mainly through hole components
  • No custom parts used in this design (all parts can be purchased through usual suppliers)
  • Major component designators carried over from original design so original schematics can be used
  • Board comes with complete set of schematics

In order to keep the price of this board as low as possible, the baseline price does NOT include the microprocessor (M6802) or the Game ROM(s) as all are socketed on the original board and can be moved to our new board fairly easily. We do offer these items as an option.

This board is the same basic board as our part number MPU011C; However, there is a daughter board that makes it compatible with Williams System 11A and 11B games.

Supported games:

  • Bad Cats
  • Banzai Run
  • Big Guns
  • Black Knight 2000
  • Cyclone
  • Earthshaker
  • Elvira and the Party Monsters
  • F-14 Tomcat
  • Fire!
  • Jokerz
  • Millionaire
  • Mousin Around
  • Pinbot / Pin*Bot (Note:  A handful of Pinbots were built with System 11 MPUs.  If your MPU has a cable connected to connector 1J15 this is a System 11 game and this board is not compatible.)
  • Police Force
  • Space Station
  • Swords of Fury
  • Taxi
  • Transporter
  • Whirlwind

If you want to order this board complete with game ROMs, sound ROMs and microproessor ready to plug and play, give us a call at 229-941-2506.

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