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820-2530 no PP5V_S3_REG

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  • 820-2530 no PP5V_S3_REG

    Back with another difficult one . Attached images show what I tested. Since I have 3.3v from 7200 can I assume the Chip is working fine, although 5v is not coming out? So im trying now to troubleshoot the enable signal but cant find any issues yet, accept for one R that showed wrong, see image description.

    On a sidenote, my customer told me he used the mac for quite some time with a defect fan, maybe something fried. The board looks nice though and I have green + orange light on charger.

    Greetz
    Arno
    Attached Files

  • #2
    These do not auto power on. Did you try to power on by shorting C5710? See if PM_PWRBTN_L toggles when you short C5710.

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