(Topic ID: 246524)

Firepower display issue


By EMsInKC

7 months ago



Topic Stats

  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 7 months ago by EMsInKC
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    #1 7 months ago

    I am mostly helpless on Williams SS games but willing to learn. Two issues.

    1. Player 2 1 pt display should always show 0. Always shows 8. I switched connectors and the problem followed the connector. I assume transistors control this? Where should I start?

    2. Credits are fine until you go over 9. Then they jump to 80. From 80 when you start another game it drops back to 09.

    Any help greatly appreciated

    #2 7 months ago

    Turn it off.
    Pull one of/the battery/batteries.
    Wait 30 seconds.
    Reinstall Battery/ies.
    Power up. It should come up with the "04" code displayed.
    Leave coin door open and cycle power twice. Off-On...Off-On.
    See if anything changed.

    You'll have to reset any non-factory settings.

    #3 7 months ago

    Go into diagnostics and run the display test to verify problem segments. See if adjusting the top-second-from-right connector on CPU board affects segments. That's a likely culprit that often needs a new connector and/or resoldered pins. Also can see if reseating master display connectors has any effects.

    #4 7 months ago

    I've run the diagnostics for the displays and all functioned normally. I'll try the other suggestions tomorrow and report back. Thanks guys.

    #5 7 months ago

    On diagnostics everything was correct. Today I played a 4 player game and the 8 changed to 0. After I shut it off and turned it back on the 8 returned. Weird.

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