LC-65D64U No Power/ No Standby Light

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  • mak2290
    New Member
    • Jul 2013
    • 4
    • US
    #1

    LC-65D64U No Power/ No Standby Light

    I was able to grab a Sharp Aquos 65" LCD i am trying resurrect. This unit has a power board (MPF3930) and a sub power board (MPF3931). The AC plugs into the MPF3930. AC is 122 volts in. I am first checking for standby power. All the voltage I can read is DC voltage from PP3, which is on the MPF3030 top middle of the screen. I get varying voltage on PP3 from 2.0 VDC to 2.5VDC. I am assuming this would be the standby power. Am i correct? I believe this should be a constant 5VDC. I am assuming if this is the standby voltage, it is too low. I do not see any bad caps and the diodes seem to be ok. Any thoughts... Am i totally off. I have not been able to find the voltage for the pins on the power boards anywhere online. Thanks
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    • maxtor247
      New Member
      • Sep 2016
      • 1
      • us
      #2
      Re: LC-65D64U No Power/ No Standby Light

      i have the same tv with same problem did you get a fix

        Comment

        • R_J
          Badcaps Legend
          • Jun 2012
          • 9624
          • Canada
          #3
          Re: LC-65D64U No Power/ No Standby Light

          Check the voltage on D0251 cathode, on the power supply board, that should be the standby voltage

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