Acer Aspire 3 ( dh5jv la-g021p Rev:1)

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  • Jane
    Senior Member
    • Aug 2010
    • 188

    #1

    Acer Aspire 3 ( dh5jv la-g021p Rev:1)

    The laptop does not start. 19V, 5V and 3.3V are present.
    ON/OFF button is a part of keypad. Is there a way how to check that ON/OFF button is working ( without replacing the keypad)?
    Or is it BIOS problem? Or anything else?
    What to try?
    Thank you for a hint.
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14118
    • Canada

    #2
    https://youtu.be/YsisRlG_buk?feature=shared

    Comment

    • Jane
      Senior Member
      • Aug 2010
      • 188

      #3
      Thank you for the link. I followed the video. Shorted pin 27 and 28 but the laptop /fan did not start and it takes ( during time Iam shorting pins) about 1mA only.
      ( If keypad flex is unplug there is about 3.3V on pin 27. If keypad is pluged there only 0.3V. Pin 28 is ground.
      What should I try next?Thank you for help

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 14118
        • Canada

        #4
        What is the history of this laptop? Just died one day?

        using original power adapter?

        Comment

        • Jane
          Senior Member
          • Aug 2010
          • 188

          #5
          Yes, just died one day. I use universal adapter that worked with every laptop in the past

          Comment

          • mon2
            Badcaps Legend
            • Dec 2019
            • 14118
            • Canada

            #6
            Would you have the attached parts on your board? This is from the Acer Aspire v3-571G schematics in my database.

            Click image for larger version

Name:	acer_onoff.png
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            Comment

          • Jane
            Senior Member
            • Aug 2010
            • 188

            #7
            Not sure I fully understand. There is PWR button as a part of keypad, as we spoke above.Not separated.
            I enclosed a picture of the mainboard

            Comment

            • Gcs_rma
              Banned
              • Dec 2023
              • 108
              • N/A

              #8
              Originally posted by Jane
              Not sure I fully understand. There is PWR button as a part of keypad, as we spoke above.Not separated.
              I enclosed a picture of the mainboard
              ON/OFFBTN# is SWK1 Click image for larger version

Name:	2023-12-30_155812.png
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Size:	245.1 KB
ID:	3170285

              Comment

              • Jane
                Senior Member
                • Aug 2010
                • 188

                #9
                Do you mean there might be an alternative/another way how to start the laptop?Via SWK1 ?

                Comment

                • mon2
                  Badcaps Legend
                  • Dec 2019
                  • 14118
                  • Canada

                  #10
                  Yes.

                  Comment

                  • Jane
                    Senior Member
                    • Aug 2010
                    • 188

                    #11
                    I tried to start the laptop via SWK1 but still the same behaviour - the laptop did not start.
                    Do you think it can be BIOS problem or SuperIO or different problem?

                    Comment

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