Williams Disco Fever- Dead Battery = Machine Boots to Audits Mode

By billsacto

1 week ago


  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 1 week ago by zacaj
  • Topic is favorited by 1 Pinsider


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    #1 10 days ago

    Hey guys, I have something here I don't understand.

    I turned my Disco Fever on the other day and it booted into the audits mode and then just started cycling through all of the audit settings starting at 1. I noticed the auto switch was up in the auto mode. When I put it down to manual, and hit the advance button, the cycling stopped.

    Almost accidentally, I checked the cmos batteries and they were dead. I replaced the batteries and the problem went away. I verified it again by pulling the battery and the machine boots to audits mode and begins cycling through them.

    Anyone know why:
    1. Machine boots to audit mode when there is no battery?

    2. Why machine starts cycling through the audit numbers?



    #2 10 days ago

    That's all normal for that system

    #3 10 days ago

    I'll have to look at the schematic again. I thought the only thing the battery did was supply power to the 5101 when the power is off. Not sure how dead battery would cause any of that behavior.

    #4 9 days ago

    That's the way it's programmed. If the code detects that the cmos ram is corrupted, it'll reset it and then boot in audit mode

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