Aspire 5755G work with battery but not with ac adapter.

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  • Pragmatiko
    Badcaps Veteran
    • Jul 2013
    • 468
    • IT

    #1

    Aspire 5755G work with battery but not with ac adapter.

    Also dont charge battery.
    I have voltage on pin 1-2-3 of PQ7 but nothing 5-6-7-8.
    Have replaced PQ7 but still dont work.
    Attached Files
  • koresi
    Member
    • Sep 2012
    • 24
    • Romania

    #2
    Re: Aspire 5755G work with battery but not with ac adapter.

    on pin 4 you have 19v?
    check voltages on pu1 pins 8,23,24

    Comment

    • Pragmatiko
      Badcaps Veteran
      • Jul 2013
      • 468
      • IT

      #3
      Re: Aspire 5755G work with battery but not with ac adapter.

      Originally posted by koresi
      on pin 4 you have 19v?
      check voltages on pu1 pins 8,23,24
      yes on pin 4 of PQ7 there are 18,5V
      Pin 8-23-24 0V

      Comment

      • koresi
        Member
        • Sep 2012
        • 24
        • Romania

        #4
        Re: Aspire 5755G work with battery but not with ac adapter.

        check PD5.there must be around 18v on pin1.if not measure the resistance between pd1.1 and ground.

        Comment

        • Pragmatiko
          Badcaps Veteran
          • Jul 2013
          • 468
          • IT

          #5
          Re: Aspire 5755G work with battery but not with ac adapter.

          Originally posted by koresi
          check PD5.there must be around 18v on pin1.if not measure the resistance between pd1.1 and ground.
          on PD5 there is 18v correct

          Comment

          • Pragmatiko
            Badcaps Veteran
            • Jul 2013
            • 468
            • IT

            #6
            Re: Aspire 5755G work with battery but not with ac adapter.

            Found PU1 short on pin 24... replaced now work.

            Comment

            • koresi
              Member
              • Sep 2012
              • 24
              • Romania

              #7
              Re: Aspire 5755G work with battery but not with ac adapter.

              super.

              Comment

              • Pragmatiko
                Badcaps Veteran
                • Jul 2013
                • 468
                • IT

                #8
                Re: Aspire 5755G work with battery but not with ac adapter.

                Originally posted by koresi
                super.
                thank you for cooperation

                Comment

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