Acer 4743z power button problems with one second

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  • fardhan_rajab56
    Paklar
    • May 2012
    • 49
    • INDONESIA

    #1

    Acer 4743z power button problems with one second

    hello
    how are his best friend

    I have a new problem.
    acer 4743z not live
    I press the on / off
    handy with a time of 1 second and then turns off again
  • Tuomo
    Senior Member
    • Jan 2013
    • 163
    • Finland

    #2
    Re: Acer 4743z power button problems with one second

    Originally posted by fardhan_rajab56
    hello
    how are his best friend

    I have a new problem.
    acer 4743z not live
    I press the on / off
    handy with a time of 1 second and then turns off again
    Sounds like short circuit.

    You need schematics and measure resistance to coils.

    Comment

    • Amraks
      Badcaps Veteran
      • Nov 2011
      • 725
      • Australia

      #3
      Re: Acer 4743z power button problems with one second

      have you had this laptop apart?

      sometimes you need to re coat the heat sink with heat sink gel.

      I had a laptop doing this one.

      Comment

      • fddizon
        Badcaps Veteran
        • Sep 2011
        • 555
        • Philippines

        #4
        Re: Acer 4743z power button problems with one second

        1 second then off is a no thermal issue... my opinion

        Comment

        • fardhan_rajab56
          Paklar
          • May 2012
          • 49
          • INDONESIA

          #5
          Re: Acer 4743z power button problems with one second

          Originally posted by fddizon
          1 second then off is a no thermal issue... my opinion
          I think the problem may be found in IC U22 (ENE KB3930QF) A1

          whether it can also happen that

          Comment

          • Francisco.s
            Badcaps Veteran
            • Jan 2013
            • 691
            • Spain

            #6
            Re: Acer 4743z power button problems with one second

            Originally posted by fardhan_rajab56
            I think the problem may be found in IC U22 (ENE KB3930QF) A1

            whether it can also happen that
            Can you post the schematic or the code number of the motherboard?

            Comment

            • fardhan_rajab56
              Paklar
              • May 2012
              • 49
              • INDONESIA

              #7
              Re: Acer 4743z power button problems with one second

              Originally posted by Francisco.s
              Can you post the schematic or the code number of the motherboard?

              sorry pal
              I just come back online

              I am posting some pictures that you requested
              sorry if the picture is not good

              Comment

              • masud
                Badcaps Veteran
                • Jul 2011
                • 317
                • Bangladesh

                #8
                Re: Acer 4743z power button problems with one second

                check the mosfets around the battery connector.

                Comment

                • Francisco.s
                  Badcaps Veteran
                  • Jan 2013
                  • 691
                  • Spain

                  #9
                  Re: Acer 4743z power button problems with one second

                  Originally posted by fardhan_rajab56
                  sorry pal
                  I just come back online

                  I am posting some pictures that you requested
                  sorry if the picture is not good
                  In this link, you can know how to identify the motherboard, in order to obtain the right schematic for your motherboard.

                  http://laptoprepairegypt.com/blog/2012/11/27/test/

                  Comment

                  • fardhan_rajab56
                    Paklar
                    • May 2012
                    • 49
                    • INDONESIA

                    #10
                    Re: Acer 4743z power button problems with one second

                    Originally posted by fardhan_rajab56
                    sorry pal
                    i just come back online

                    i am posting some pictures that you requested
                    sorry if the picture is not good




                    Attached Files

                    Comment

                    • fardhan_rajab56
                      Paklar
                      • May 2012
                      • 49
                      • INDONESIA

                      #11
                      Re: Acer 4743z power button problems with one second

                      Originally posted by fardhan_rajab56
                      sorry pal
                      i just come back online

                      i am posting some pictures that you requested
                      sorry if the picture is not good



                      Comment

                      • Francisco.s
                        Badcaps Veteran
                        • Jan 2013
                        • 691
                        • Spain

                        #12
                        Re: Acer 4743z power button problems with one second

                        Originally posted by fardhan_rajab56


                        Attached Files

                        Comment

                        • fardhan_rajab56
                          Paklar
                          • May 2012
                          • 49
                          • INDONESIA

                          #13
                          Re: Acer 4743z power button problems with one second

                          ok
                          thank you Francisco.s
                          I have found the source

                          Comment

                          • java01ph
                            New Member
                            • Sep 2012
                            • 1
                            • Philippines

                            #14
                            Re: Acer 4743z power button problems with one second

                            what is the source of the problem sir? tnx

                            Comment

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