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(Topic ID: 205331)

Hyperball settings display

By PinballRusch

6 years ago


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  • 26 posts
  • 5 Pinsiders participating
  • Latest reply 6 years ago by 5280wzrd
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    #8 6 years ago
     
    ???

    Biffbar

    Pinside member

    7y 42,050 271

    OP
    Quoted from PinballRusch:

    ... I don’t have a manual but something seems jacked.....

    I would go for a manual before anything else (might find a PDF version online, IPDB or elsewhere).
    Perhaps invest twenty bucks in a digital logic probe. That would give you some tools to track down the problem.

    Most likely a problem upstream from the 12 digit display. The alphanumeric display board does not have any extra electronics (no chips to go bad).
    Could be bad connections, very common to have bad solder at header pins. Check the driver board, 2J6 2J8 2J10 2J11, and on the display.
    They put an extra PIA chip on the driver board to help drive the alphanumeric display. If your PIA chips are socketed you can try moving them around, or putting a fresh 6821 in at IC12.
    You may be able to find a board repair, or a display, for less.

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