macbook pro 17" 820-2914 - b

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  • hazem3636
    Member
    • Jun 2022
    • 35
    • sa
    #1

    macbook pro 17" 820-2914 - b

    macbook "820-2914-b"

    hi there only green light on the magsafe without fan spin no boot
    with battery green light and change to red same no fan no boot

    voltage

    PPBUS_G3H: 12.62V
    PP3V42_G3H: 3.497
    PPVRTC_G3H: 3.337
    SMC_RESET_L : 3.2v
    PP5V_S5: 5.01V
    PP3V3_S5: 3.1V
    PP5V_S3: 5.1V
    PP3V3_S3: 3.2V
    pp5v_s0 : 0 V
    PP3V3_S3: 0 V
    PM_SLP_S4: 0V
    PM_SLP_S3: 0V
    Last edited by hazem3636; 02-28-2023, 03:14 AM.
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13830
      • Canada
      #2
      Re: macbook pro 17" 820-2914 - b

      Remove all power. Meter in resistance mode.

      What is the resistance to ground of pp5v_s0 ? Also interested the resistance to ground of the other 0v rails in your list.

      Post the measurements.

        Comment

        • hazem3636
          Member
          • Jun 2022
          • 35
          • sa
          #3
          Re: macbook pro 17" 820-2914 - b

          thanks for support sir
          resistance mode :

          PP3V3_S5 : 395 ohm
          P3V3S0_SS : 80 Kohm
          PP3V3_S0 : 2.8 Kohm

          pp5v_s0 : 4.8Kohm
          PP5V_S0_ISNS_R : 4.8Kohm


          i did something , direct voltage 2 V only with small current on PP3V3_S0 i found the PCH take all current and getting hot .

          your opinion sir

            Comment

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