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Macbook Pro Retina 820-3476 not charging

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  • Macbook Pro Retina 820-3476 not charging

    The computer turns on but no charge, the customer tried to resold the power supply cable by inverting the wires.

    I do not usually repair mac cards, it's for a friend. I usually repair iphone cards.

    i would like to know if there is any reverse gate protection. i checked the fuse but are ok , and i tried a new dc in board

  • #2
    As per schematic, Q7180 works as Reverse-Current Protection, apart of Inrush Limiter.
    D7005 protects 3V42 power supply too.
    Thanks God, something get burnt in such case, and we can pay the meal

    Start checking voltages at L7095 and U7100.

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    • #3
      no volage at L7095, i have 0.70 at PPDCIN_G3H

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      • #4
        Post voltages for Q7010 now.
        Is D7012 open?

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        • #5
          yes . ok i have to order this stuff .. and i have to order from usa,,, mouser i think .. what can i buy .

          q7010 SI5419DU

          d7010 GDZT2R6 0201

          d7005 SBR0330CW sot-323
          q7180 IRF9395TRPBF

          there are any other component to buy just to be sure to have all component from dcin to isl


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          • #6
            Order them why?
            Did you measure and result bad?

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            • #7
              I'll explain I have to make 1 order from mouser and I would like to make one only as I pay € 20 shipping from USA to Italy, so I would like to take extra components to make sure I have everything I can

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              • #8
                Why don't measure anyway?
                Maybe is other thing bad...

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