HP 15 LA-C701P not working .

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  • lapfix
    Badcaps Legend
    • Mar 2020
    • 2585
    • my workshop

    #1

    HP 15 LA-C701P not working .

    Hello my friend.
    Got this motherboard didn't work completely. HP 15 LA-C701P Discreet one ( AMD )

    When in power , theres's a white light in charger indicator which means 3LDO is ok , when pressing button the amp consumer reach 0.280 than 0.170

    than off ( I use here a powe supply with 2 number after point ).than off.

    take this voltage when pressing power button :

    Pl 8/9 = 3/5valw is present
    Pl 11 = 1.35v present
    Pl 17 = 1.5v present
    Pl 802/803 = 0v
    Pl 12 = 1.05v present
    PL 14 = 1.8V with heating

    RTC section :
    JCMOS1 = PCH Rtc rst = 3v
    JME 1 = PCH Srtcrt = 3v

    Bios = pin 1/8 = 3v is present

    I take this impedance :

    PL 8 = 0.480v
    PL 9 = 0.365v
    Pl 11 = 0.292v
    Pl 802/803 = 0.036v
    Pl 17 = 0.305v
    PL 14 = 0.043v
    Pl 12 = 0.155v
    Pl 202 =0.530v

    U20 all voltages presents
    Q21 all voltages presents

    Powr sequence P43 =
    all voltages are present but

    Slp 3 = 1.4v than quickly dissappear
    Slp 5 = 3v than quickly dissappear
    Pltrst = 0.700 than 0v

    No short at pl 14 area that get hot ...1.8v =vcccore , is it so high !!

    Thank you to suggest me another steps to take
    Attached Files
  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Re: HP 15 LA-C701P not working .

    1.8V as vcore is perfect for 4th gen cpu. All indicators are towards a shorted cpu.

    Comment

    • lapfix
      Badcaps Legend
      • Mar 2020
      • 2585
      • my workshop

      #3
      Re: HP 15 LA-C701P not working .

      That's my doubt too , thank you my friend .

      Comment

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