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Pinball MPU board : Main Processor Unit or CPU : Central Processor Unit. Do not confuse it with the WPC-SECURITY board (1995-96) or the WPC-95 board (1996-99). You will have to acquire and install all components.
Those are the Two Bits boards. They work but have their own issues caused by the updated design. I purchased a nice new bare MPU board from Mrpinball from Australia. They also have bare driver boards as well. May be worth checking them out.
Those are the Two Bits boards. They work but have their own issues caused by the updated design. I purchased a nice new bare MPU board from Mrpinball from Australia. They also have bare driver boards as well. May be worth checking them out.