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A2442 820-02098 5v 0a - PP3V8_AON short

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    A2442 820-02098 5v 0a - PP3V8_AON short

    Good afternoon,
    I'd appreciate help diagnosing my A2442 that's only taking 5v and 0a. Magsafe charger is not working.
    PPBUS_AON (Battery unplugged) - ~12.00

    Found out PP3V8_AON is short to the ground. I have feed 1V and U7700 is getting hot.
    Is there any way to isolate U7700 from PP3V8_AON. Just to make sure any other component is not bad which is causing U7700 to get hot.


    Thanks in advance

    #2
    Lift one leg on each of the multiphase inductors of PP3V8_AON.

    So this involves:

    L5800
    L5820
    L5840

    Comment


      #3
      Hi Mon2
      I have tried removing those inductors same U7700 is getting hot.

      Comment


        #4
        I just had the same behaviour. C7714 was shorted. I was lucky.

        Comment


          #5
          so guys, in my case PP3V8_AON this line is not stable. UR630 has failed.

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