Hp envy - ase30 c482p power on

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  • motanya
    Senior Member
    • Nov 2021
    • 160
    • Kenya
    #1

    Hp envy - ase30 c482p power on

    I have an hp envy 13 -d023tu, the battery was unfortunately plugged in reverse way +ve to -ve pin and -ve to positive pin, it blew up the chip named NL17SZ74_VSSOP8 in the schematics. All volts are present, charging port lights white when in charger mode and orange when battery and charger are connected but it does not power on. I ordered what i think is the same chip, labelled MHH, after replacing it still doesn't power on. What might be the challenge?
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    • mon2
      Badcaps Legend
      • Dec 2019
      • 14115
      • Canada
      #2
      Re: Hp envy - ase30 c482p power on

      Post or link the schematic.

        Comment

        • motanya
          Senior Member
          • Nov 2021
          • 160
          • Kenya
          #3
          Re: Hp envy - ase30 c482p power on

          Here

          https://www.badcaps.net/forum/showth...809#post835809
          Last edited by Vesko356; 04-19-2023, 08:44 AM. Reason: Attached schematic removed and replaced with the link.

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14115
              • Canada
              #4
              Re: Hp envy - ase30 c482p power on

              Review the voltages on the charger IC @ PUB1.

              Interested in the voltage to ground of:

              pin # 1 - ACIN
              pin #30 - ASGATE = used to enable the DCin mosfets
              pin #18 - DCIN
              pin #29 - CMSRC

                Comment

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