HP LA-A994P no 3=5valw

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  • ziko07
    Senior Member
    • Jun 2021
    • 93
    • Somewhere
    #1

    HP LA-A994P no 3=5valw

    Hi

    3valw rail has 10 Ohms only
    1v0 rail has 1 Ohm
    LDO 3 abd 5 present, byt not receive EC_ON from IO chip.
    When I bring 3v to enable pin I get all always rails but draws 350mA ...
    Any tips?
    Tags: None
    • Sephir0th
      Badcaps Legend
      • Oct 2020
      • 1262
      • Germany
      #2
      Re: HP LA-A994P no 3=5valw

      Shorted PCH
      FairRepair on YouTube

        Comment

        • ziko07
          Senior Member
          • Jun 2021
          • 93
          • Somewhere
          #3
          Re: HP LA-A994P no 3=5valw

          And that why no enable signal from IO chip?
          +1 subscriber on YouTube

          Tnx

            Comment

            • Sephir0th
              Badcaps Legend
              • Oct 2020
              • 1262
              • Germany
              #4
              Re: HP LA-A994P no 3=5valw

              Thx. Not exactly sure about the EC_ON signal. Can be some kind of protection triggered or the controller has simply died. Either way, 3.3V and 1.05V in short is worst case scenario.
              FairRepair on YouTube

                Comment

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