Hp la-d704

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  • bakre
    Senior Member
    • Dec 2014
    • 105
    • Zwolle
    #1

    Hp la-d704

    Hello gays

    I have an HP 15 with mainboard LA-D704 is not turn on at all.
    19v in is present
    Acok is 3,3v
    Acdet is 2.5v
    ADP_ID is 1.75v
    EC_ACIN is 3.2V
    VCIN0_PH is 2,7v
    EC_RST# is 3.25V

    in the schematic it should give EC_ON to start the 5/3v always to start all the section but it not giving this signal unfortunately this line is not shorted to ground i have replace the i\O and the charging IC and 5/3v no change.
    i thing i have one missing signal on i/o chip if any one can give an idea to solve the problem.
    it is an HP 15-ay094nd reflash the bios also no change, if any one have an EC dump i can try to reflash it maybe will help.
    When insert the battery is charging and it light orange.

    Thanks. any idea
    Attached Files
    Last edited by bakre; 10-31-2020, 05:37 PM.
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Re: Hp la-d704

      Check your dc jack or better replace it.

        Comment

        • bakre
          Senior Member
          • Dec 2014
          • 105
          • Zwolle
          #3
          Re: Hp la-d704

          Thanks for answer

          The problem solve with reprogram the i\o chip

            Comment

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