Dell Ins. 15R-5537 /only works battery/

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  • tsiga
    Senior Member
    • Jan 2014
    • 76
    • ott
    #1

    Dell Ins. 15R-5537 /only works battery/

    HI!

    I have a Dell inspiron 15R-5537
    MB num:LA-9982P

    If the battery is inside, works fine. When i plug the adapter it show short circuit.
    I looked power circuit and found a bad capacitor. So i remove it and check again the problem is solved. Try turn on with dc adapter but not work.
    The problem is PQ703 does not open. I took it off and it was good and same PQ705. The PQ704 is not on the motherboard.
    Measure some voltage (In adapter mode), but i think everything ok.

    I changed: BQ24717
    Any ideas?

    Link to schematic - https://www.badcaps.net/forum/showthread.php?t=122412
    .
    Attached Files
    Last edited by SMDFlea; 08-16-2023, 08:06 AM.
    Tags: None
    • vhn1998
      Senior Member
      • Jun 2015
      • 56
      • Vietnam
      #2
      Re: Dell Ins. 15R-5537 /only works battery/

      test pq701. i think pq701 fail.

        Comment

        • Chieftain
          Senior Member
          • May 2016
          • 72
          • Greece
          #3
          Re: Dell Ins. 15R-5537 /only works battery/

          Change pq701 3 times and no results...

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france
              #4
              Re: Dell Ins. 15R-5537 /only works battery/

              Originally posted by Chieftain
              Change pq701 3 times and no results...
              The Voltage on the Gate of Fet pq701 must be high that VIN +24-28V , ACDRV line you have a resistor and a capacitor test both of them , if not remove the resistor PR703 and see whether the voltage is about 20V, Test to the DC check connected pin 4/5 ADPIN Voltage?
              Last edited by Techtiger; 05-30-2019, 10:49 AM.

                Comment

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