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(Topic ID: 194312)

williams sys 9 wont boot

By mike11

6 years ago



Topic Stats

  • 5 posts
  • 5 Pinsiders participating
  • Latest reply 6 years ago by gregh
  • Topic is favorited by 1 Pinsider

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    #1 6 years ago
    OP
     
    ???

    mike11

    Inactive member

    US Hazleton, PA

    10y 14,900 75

    I have a comet here i just got running but it will only boot after pushing the diag switch on the board...... gives no errors boots and plays fine but will only boot by pushing that button.... whats up with that

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    #2 6 years ago
     
    AXE

    YeOldPinPlayer

    Inactive member

    Unknown

    8y 111K 6,454 4 12

    Did you resolve this?

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    #3 6 years ago
     
    MAT

    snyper2099

    Cincinnati Pinball

    16y 103K 7,644

    555 timer could be bad?

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    #4 6 years ago
     
    BTF

    PinballManiac40

    Pinside+ Frequent

    14y 234K 17,615 104

    OP
    Quoted from mike11:

    I have a comet here i just got running but it will only boot after pushing the diag switch on the board...... gives no errors boots and plays fine but will only boot by pushing that button.... whats up with that

    So it sounds like you are describing "adjustment failure" error that shows on the display when you turn on the game. Is this right? If so, you can have a bad contact on your battery holder. If so, one can upgrade to NVRAM. If not that error, what shows on the display when you turn on the game?

    Can you post a picture so we can see if there is any battery corrosion?

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    #5 6 years ago
     
    GBH

    gregh

    Pinside member

    CA Halifax, NS

    7y 41,900 303 6

    My sorcerer did the same thing. NVRAM to the rescue. The anypin dmd+ works in the sys9 boards. You have to desolder the old ram and put in a socket though. If you don't mind soldering it's a very worthwhile upgrade.

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