Short to ground

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  • samanthban
    Badcaps Veteran
    • Feb 2014
    • 253
    • Sri lanka

    #1

    Short to ground

    This laptop I received recently and its short to ground (DAOZE6MB6E0)
    once pq 116 removed short with pq 33 was vanished.
    but pq 35 pin 1 2 3 short to ground 4 5 6 7 8 is ok please tell any expert how to find it .
    Thanks
    Attached Files
    sigpic
  • samanthban
    Badcaps Veteran
    • Feb 2014
    • 253
    • Sri lanka

    #2
    Re: Short to ground

    below component removed and checked but still short remains.

    pc 79 ,pc 80, pr 6, pr 7, pq 34 , pq 43 , pq 2 , pu 7.
    sigpic

    Comment

    • rievax_60
      Badcaps Veteran
      • May 2012
      • 897
      • australia

      #3
      Re: Short to ground

      I have been using a method explained here starting at post #25, https://www.badcaps.net/forum/showth...t=46808&page=2
      I find shorted capacitors quickly if it is a faulty capacitor.
      You need to have a multimeter with 10uv resolution for this method to work and understand the relationship between voltage, current and resistance.
      Whatever you do or are told to do, do not apply more than 1 volt from an external supply.

      EXTRA: Maybe there is a capacitor that isn't shown on the schematic.
      Last edited by rievax_60; 01-29-2016, 05:44 PM. Reason: added extra

      Comment

      • rievax_60
        Badcaps Veteran
        • May 2012
        • 897
        • australia

        #4
        Re: Short to ground

        Have you tried removing PR116 to narrow down the area of where the short is likely to be?

        Comment

        • samanthban
          Badcaps Veteran
          • Feb 2014
          • 253
          • Sri lanka

          #5
          Re: Short to ground

          Originally posted by rievax_60
          Have you tried removing PR116 to narrow down the area of where the short is likely to be?
          Thanks for replying . yes I tried..what I mentioned above is a mistake .pq 116 should be pr 116. no luck, I will try as you said and let you know. Thanks for your time.
          sigpic

          Comment

          • samanthban
            Badcaps Veteran
            • Feb 2014
            • 253
            • Sri lanka

            #6
            Re: Short to ground

            Originally posted by rievax_60
            I have been using a method explained here starting at post #25, https://www.badcaps.net/forum/showth...t=46808&page=2
            I find shorted capacitors quickly if it is a faulty capacitor.
            You need to have a multimeter with 10uv resolution for this method to work and understand the relationship between voltage, current and resistance.
            Whatever you do or are told to do, do not apply more than 1 volt from an external supply.

            EXTRA: Maybe there is a capacitor that isn't shown on the schematic.
            Thanks bro , got my ignition from your link and found the culprit . its pc 126 .Nearly 15 component were removed . I need proper multimeter for relevant method .without that it can do little bit hard .
            sigpic

            Comment

            • rievax_60
              Badcaps Veteran
              • May 2012
              • 897
              • australia

              #7
              Re: Short to ground

              There is more detail here, https://www.badcaps.net/forum/showthread.php?t=35231
              Post #9 is important to understand.
              Last edited by rievax_60; 01-30-2016, 04:27 AM. Reason: extra

              Comment

              • samanthban
                Badcaps Veteran
                • Feb 2014
                • 253
                • Sri lanka

                #8
                Re: Short to ground

                Originally posted by rievax_60
                There is more detail here, https://www.badcaps.net/forum/showthread.php?t=35231
                Post #9 is important to understand.
                Thanks for your help
                sigpic

                Comment

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