Description

Williams System 9, 11, 11A, 11B and 11C MPU Board

Williams System 9, 11, 11A, 11B and 11C MPU Board is completely redesigned and replaces the MPU board in all Williams System 9 through 11B games, INCLUDING System 9-11 early games such as Comet and High Speed.

This completely redesigned board replaces the MPU board in all Williams System 9 through 11B games, NOW INCLUDING System 9-11 early games such as Comet and High Speed, view the full list below.

This new board has a small balancing pot to compensate for the differences in volume on the MPU and soundboard.
For System 9 games, the external sound board is not longer needed and is incorporated in the new MPU board.
Custom EPROMs are required for the System 9 games, which you can order here.
For all games, you must move over your (2) 6802 processors or buy here.
For System 11 games, you will need to swap over your two Game EPROMS from your MPU board and the two Sound EPROMs from the Sound board or buy them here.
All 6821s chips are provided, and the MPU9211 comes with NVRAM installed, no batteries are needed!

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)

– 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.

– Schematics available on request.

Game List:

• Alley Cats (Shuffle)

• Bad Cats - System 11B

• Banzai Run - System 11B

• Big Guns - System 11B

• Black Knight 2000 - System 11B

• Bugs Bunny Birthday Ball - System 11C

• Comet - System 9

• Cyclone - System 11B

• *Diner - System 11C

• Dr. Dude And His Excellent Ray - System 11C (Non-WPC machines)

• Earthshaker - System 11B

• Elvira and the Party Monsters - System 11B

• F14 Tomcat - System 11A

• Fire! - System 11A

• High Speed - System 11

• The Bally Game Show - System 11C

• Gold Mine (Shuffle)

• Grand Lizard - System 11

• Jokerz - System 11B

• Millionaire - System 11A

• Mousin’ Around - System 11B

• Pin-Bot - System 11A

• Police Force - System 11B

• Pool Sharks - System 11C

• Radical! - System 11C

• Riverboat Gambler - System 11C

• Road Kings - System 11

• Rollergames - System 11C

• Shuffle Inn (Shuffle)

• Sorcerer - System 9

• Space Shuttle - System 9

• Space Station - System 11B

• Star Lite (very few machines were Sys 9)

• Strike Zone (Shuffle)

• Swords of Fury - System 11B

• Taxi - System 11B

• Tic Tac Strike (Shuffle)

• Top Dawg (Shuffle)

• Transporter the Rescue - System 11B

• Whirlwind - System 11B

Williams System 9, 11, 11A, 11B and 11C MPU Board

Brand: Rottendog Amusements
Model or Part Number: RD-MPU9211
Availability: In Stock

$540.00 USD

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