The Alltek Ultimate MPU is a direct replacement for Bally® and Stern® pinball machine boards. Features include preprogrammed games, freeplay mode, no batteries needed, and easy installation. Lifetime warranty.
Alltek Systems Ultimate MPU Board Normal Start-Up Sequence - YouTube
MPU SETUP INO - Pinball Electronics from barakandl
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Alltek Universal Bally/Stern Replacement Ultimate MPU Board | Pinball Haus
MPU011A- This completely redesigned board replaces Williams System 11A & 11B MPU / Driver Boards part number D-11883-xxx (where xxx is the game number).