Macbook Pro A1708 820-00840-A does not start up

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  • Drizzy
    New Member
    • Sep 2021
    • 2
    • Germany

    #1

    Macbook Pro A1708 820-00840-A does not start up

    Hi all, i am new to troubleshooting laptops. Therefore i need some help.

    I have Macbook Pro A1708 820-00840-A which does not boot anymore.

    I measured a little bit around:

    Usb power meter readings: 5,113V 0,327A
    On the other usb port the power meter does not show anything

    C3101 - 5,143V
    C3100 - 2,512V
    C3108 - 3,342V
    C3200 - 2,508V
    C3208 - 2,075V
    C3201 - 0V

    DIODE mode readings:
    C3213, C3011 - 0,044
    C3214 - 0,113

    Are the diode mode readings an indicator for a short or is U3100 faulty?

    Does anyone have tips for me how to proceed troubleshooting?
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14056
    • Canada

    #2
    Re: Macbook Pro A1708 820-00840-A does not start up

    Please review:

    https://logi.wiki/index.php/CD3215_Bootup_Sequence

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