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Title: Bally 5000 plus program chip id Post by: junkman on February 23, 2011, 08:39:50 AM is there anyone out there that can tell me what each of the four game chips do on the cpu board what does each chip control .the u18, u3, u20,u4, trying to get idea of what each does so i can swap out to match diffrant game . thanks for your help
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