dell laptop with power problem

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  • emmanuelbill1988
    Senior Member
    • Mar 2017
    • 100
    • ghana

    #1

    dell laptop with power problem

    please I urgently need help with this dell laptop,when you put the charger in the power jack the charger light goes off ,on dell laptop mostly it's a bad caps which normally does that,after checking all caps on the board whether some is burnt ,it all looks OK,please can anyone help me with what to check next?motherboard number is LA-9104P Rev:1.0(A00)tnx in advance
  • jiroy
    Badcaps Legend
    • Jun 2016
    • 2416
    • Lebanon

    #2
    Re: dell laptop with power problem

    Dell inspiron 3521 (la-9104p):
    Attached Files

    Comment

    • emmanuelbill1988
      Senior Member
      • Mar 2017
      • 100
      • ghana

      #3
      Re: dell laptop with power problem

      please which page

      Comment

      • jiroy
        Badcaps Legend
        • Jun 2016
        • 2416
        • Lebanon

        #4
        Re: dell laptop with power problem

        Originally posted by emmanuelbill1988
        please which page
        A good start is to check and compare voltages from page 35 .
        P.S. Dell adapters sometimes show the same problems when loading . Try another adapter .

        Comment

        • piernov
          Super Moderator
          • Jan 2016
          • 4435
          • France

          #5
          Re: dell laptop with power problem

          Probably a short to ground on B+ line. Check resistance to ground of a component on that line (PR102 for example).
          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

          Comment

          • emmanuelbill1988
            Senior Member
            • Mar 2017
            • 100
            • ghana

            #6
            Re: dell laptop with power problem

            I just removed PR102 and when i connect the power the charger light does not go off,does it mean i should replace PR102,please?

            Comment

            • piernov
              Super Moderator
              • Jan 2016
              • 4435
              • France

              #7
              Re: dell laptop with power problem

              No, I told you to mesure resistance between PR102 and ground. You have a short to ground on the B+ line.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

              Comment

              • emmanuelbill1988
                Senior Member
                • Mar 2017
                • 100
                • ghana

                #8
                Re: dell laptop with power problem

                OK will check now

                Comment

                • mielta
                  Badcaps Veteran
                  • Apr 2015
                  • 368
                  • Germany

                  #9
                  Re: dell laptop with power problem

                  Hi
                  You must search in the schematic after B+ you will find many jumper interrupt them
                  and messurs on whitch side is the short to ground

                  Comment

                  • emmanuelbill1988
                    Senior Member
                    • Mar 2017
                    • 100
                    • ghana

                    #10
                    Re: dell laptop with power problem

                    OK I will try and do that

                    Comment

                    • sagrmale
                      New Member
                      • Aug 2018
                      • 2
                      • Canada

                      #11
                      Re: dell laptop with power problem

                      Hi Emmanuelbill did you solved your problem, what was it exactly?

                      Thanks

                      Comment

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