Please Help Identify The Burned Component 820-2565-A DC-IN magsafe

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  • kodox
    Badcaps Veteran
    • Jul 2017
    • 322
    • Indonesia

    #1

    Please Help Identify The Burned Component 820-2565-A DC-IN magsafe

    no green/orange light on charger and it has 12.67V on PPBUS_G3H & 3.38V on PP3V42_G3H but not power on
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  • mon2
    Badcaps Legend
    • Dec 2019
    • 13829
    • Canada

    #2
    The 3v42 power rail should be 3v42.

    Clean the MagSafe contacts with ipa (alcohol) using Q-tips to remove carbon build up, dirt, etc. Then test again. Use only the original power adapter.

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    • kodox
      Badcaps Veteran
      • Jul 2017
      • 322
      • Indonesia

      #3
      thank's for info
      i did all the cleaning, using original charger but same result. but when i accidentally touch the screw hole on dc in board to metal parts on the motherboard, green light on charger turned on but won't power on

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      • SMDFlea
        SMDFlea commented
        Editing a comment
        Added "820-2565-A DC-IN magsafe" to thread title
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13829
      • Canada

      #4
      Confirm the voltage to ground at L6995 = PP3V42_G3H (should be 3v42 here).

      This flowchart should help:

      https://logi.wiki/index.php/G3_to_S3..._and_Broadwell

      Comment

      • kodox
        Badcaps Veteran
        • Jul 2017
        • 322
        • Indonesia

        #5
        Originally posted by mon2
        Confirm the voltage to ground at L6995 = PP3V42_G3H (should be 3v42 here).

        This flowchart should help:

        https://logi.wiki/index.php/G3_to_S3..._and_Broadwell
        thank's for info, but the owner decided to take the unit before i start continue diagnose using those flowchart

        for SMDFlea it wasn't thinked to me someone would asked what kind of board in question after seeing attached picture, but thank's for correcting it

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