Dell LA-9104P (15r-3521)

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  • dspok
    Badcaps Veteran
    • Jan 2014
    • 553
    • Nepal
    #1

    Dell LA-9104P (15r-3521)

    Strange problem.
    Sometime it turns on but after I pull out and insert battery, it doesn't turn & doesn't charge battery too. After multiple power button press it turns on again & also response for battery charge.

    Same happens with battery and direct power source.

    Changed ISL88731CHRTZ & flashed with latest BIOS but same problem. RT8205LZQW IC is ok 3.3v and 5v is present after board turns on but not available in off state.

    Power button is ok. 3.3v voltage always available in power button.
    Can anybody help me to let know the problem.
    Attached Files
    Tags: None
    • atsio
      Badcaps Veteran
      • Oct 2013
      • 819
      • Greece
      #2
      Re: Dell LA-9104P (15r-3521)

      Press with your fingers the PCH and EC alternatively to see if it makes any difference.

        Comment

        • dspok
          Badcaps Veteran
          • Jan 2014
          • 553
          • Nepal
          #3
          Re: Dell LA-9104P (15r-3521)

          Thanks but no effect.
          Anyother idea?

            Comment

            • atsio
              Badcaps Veteran
              • Oct 2013
              • 819
              • Greece
              #4
              Re: Dell LA-9104P (15r-3521)

              When you say it doesn't turn on, does it draw any amps when you press the power button?

                Comment

                • dspok
                  Badcaps Veteran
                  • Jan 2014
                  • 553
                  • Nepal
                  #5
                  Re: Dell LA-9104P (15r-3521)

                  it goes up to 0.5 and drops down to 0.1
                  but interesting thing is that it doesn't charge battery.

                  if it likes to turn on it charges the battery.
                  Last edited by dspok; 08-31-2015, 04:16 AM.

                    Comment

                    • atsio
                      Badcaps Veteran
                      • Oct 2013
                      • 819
                      • Greece
                      #6
                      Re: Dell LA-9104P (15r-3521)

                      It sounds like you have to reball the PCH

                        Comment

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