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820-3787 distorted image

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  • JohnB8812
    replied
    Yep that’s junk that’s the one I had in for “graphics shutdowns”. Has a bad CPU already have replaced all the FDMF6708s made no difference. Time to tell the store that sent it not to send you junk

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  • Kyle93
    replied
    Reflowing U9650 didn't make a difference.

    Yes, unfortunately this board looks like its been worked on before.

    Serial number C0242220072FP541M

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  • JohnB8812
    replied
    If it's the one I had, I would bet on it. If not, then yeah could be something else I suppose.

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  • 2informaticos
    replied
    I doubt to be dead CPU, if gets good external video...

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  • JohnB8812
    replied
    Just curious does it look like it’s been previously repaired? I had one just like that where the CPU died from doingthe FDMF fix...

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  • 2informaticos
    replied
    Reflow/reball/replace U9650...

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  • Kyle93
    replied

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  • Kyle93
    started a topic 820-3787 distorted image

    820-3787 distorted image

    Have a 820-3787 that has distorted looking apple logo when loading and once loaded login screen only shows couple seconds as seen in pictures but the going to just backlight only shortly after.

    works fine on external. Test known good lcd was used and still same issue.

    what to check first?

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