williams whitewater pinball

Discussion in 'General Electronics Chat' started by bmmc, Feb 11, 2013.

  1. bmmc

    Thread Starter New Member

    Feb 11, 2013
    2
    0
    customer brought this game in dead.there is no display or lamps lit.leds are on & at power up short burst of audio from speaker.all fuses are good.the 18 volt source for lamp columns is low(7v) & 12v source is down to 2v.can't find any faults on power board.need some help on this one,george
     
  2. KJ6EAD

    Senior Member

    Apr 30, 2011
    1,425
    363
    Suspect power supply filter capacitors.
     
  3. bmmc

    Thread Starter New Member

    Feb 11, 2013
    2
    0
    already checked them.esr & value ok.
     
  4. KJ6EAD

    Senior Member

    Apr 30, 2011
    1,425
    363
    The next most likely failure is connectors.
     
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