Macbook A1502 Power on with battery but not charging and no light

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  • RepairhouseAB
    New Member
    • Jan 2022
    • 4
    • Sweden

    #1

    Macbook A1502 Power on with battery but not charging and no light

    Hi,

    I have a A1502 that works fine on battery (since its have some juice left) but does not charge and have no light on charger.

    A1502 Early 2015
    Motherboard 820-4924


    What I Have checked so far:
    Reset SMC
    No physical damage on board
    Exhange the charging port
    3 different chargers
    PP3V42_G3H = 3.42V
    PPBUSS_G3H = 11.38V
    PPDCIN=0.58V

    Any idea how I can continue? I have some motherboards for spares, but not exactly same model.
    Last edited by RepairhouseAB; 01-21-2022, 06:36 AM.
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14031
    • Canada

    #2
    Re: Macbook A1502 Power on with battery but not charging and no light

    Hi.

    1) Can you confirm your logic board # ? Believe it is 820-4924 ?

    2) See attached. Post the voltages for the requested area.
    Attached Files

    Comment

    • RepairhouseAB
      New Member
      • Jan 2022
      • 4
      • Sweden

      #3
      Re: Macbook A1502 Power on with battery but not charging and no light

      Originally posted by mon2
      Hi.

      1) Can you confirm your logic board # ? Believe it is 820-4924 ?

      2) See attached. Post the voltages for the requested area.
      Yes, you are right. it's 4924!

      1 Both sides of DCIN fuse F7005 Is same value. ~0.47V (going up and down sometimes between 0.6v - 0.4v

      2. Pin 1 (and 2) on R7020 = Close to 0V ~0.0x...V

      3.Same as F7005 on TP_DCIN_ISOL_GATE between 0.6v-0.4v

      Comment

      • piernov
        Super Moderator
        • Jan 2016
        • 4435
        • France

        #4
        Re: Macbook A1502 Power on with battery but not charging and no light

        https://logi.wiki/index.php/Magsafe_Sleep_Mode
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

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