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  1. #1
    Senior Member
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    Macbook 2016 820-00244 Missing PP5V_S4 Power Rail

    This is my first time to working on a Macbook 2016 820-00244 Gold that was water damage. I have 14.5V on the charger with 0.03A sometime turn on then turn off then stock at 0.03Amp at the charger. By looking at the schematic and board view I can't find where the PP5V_S4 generated at pages 61 power rail I saw the PP5V_S0 and PP5V_S4 are tied together but still even the PP5V_S0 I can't find where coming from. Any body have an idea I would really appreciate. Thanks!

  2. #2
    Senior Member
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    Re: Macbook 2016 820-00244 Missing PP5V_S4 Power Rail

    Okay I found the chip responsible for the PP5V_S4 U7650. The Problem now is I'm missing the PIN4 En1 which is PM_SLP_S5_L which is coming the System Power Management U0500 so this board is brain dead?

 

 

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