Brand new MPU board from Rottendog for Williams System 9 through 11B pinball machines! System 11 owners can transfer over all needed chips. System 9 (Comet, Sorcerer, Space Shuttle) owners can transfer over 6802s/6808s but require 3 custom ROMs.Please contact me before ordering if you have any questions. 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. Please note games with an are 11C and you can use this board or the Rottendog MPU011C.
This new board has a small balancing pot to compensate the differences in volume on the MPU and sound board. For System 9 games, the sound board is not longer needed and incorporated in the new MPU board. All 6821s chips are provided, and the MPU9211 comes with NVRAM installed, no batteries 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.
Major component designators carried over from original design so original schematics can be used. Board comes with complete set of schematics. Elvira and the Party Monsters.Star Lite (very few machines were Sys 9). The item "Brand New MPU9211 MPU Board for Williams Sys 9-11B pinball machines" is in sale since Friday, May 31, 2019. This item is in the category "Collectibles\Arcade, Jukeboxes & Pinball\Pinball\Replacement Parts". The seller is "bigdaddyenterprises_pinball" and is located in Saint Joseph, Missouri. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Switzerland, Norway, Ukraine, Croatia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Belize, Bolivia, Liechtenstein, Luxembourg, Oman, Reunion, Viet nam, Uruguay.