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Dell Precision 7510 Coffee Damage. Daughterboard dead.

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    Dell Precision 7510 Coffee Damage. Daughterboard dead.

    Hello!
    Today i received a 7510 with coffee damage.
    Keyboard is dead and replaced but i indicate a problem on left daughterboard.
    It's completely dead.
    Tried with 2 more boards that i have from a donor 7510 but no luck, no response at all.
    Neither USB or HDMI.
    Any thoughts?

    Schematics and boardview attach.
    Attached Files
    Last edited by Andreasbest; 07-04-2022, 09:27 AM.

    #2
    Re: Dell Precision 7510 Coffee Damage. Daughterboard dead.

    Basic Thing would be to check the ribbon cable for continuity.

    Pictures of the liquid damaged area?
    Last edited by Sephir0th; 07-04-2022, 04:21 PM.
    FairRepair on YouTube

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      #3
      Re: Dell Precision 7510 Coffee Damage. Daughterboard dead.

      Unfortunately is not ribbon, it's connector and there is no space to measure.
      Attached Files

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        #4
        Re: Dell Precision 7510 Coffee Damage. Daughterboard dead.

        But you can check for loose pins, no? At least it doesn't Looks nice and clean.

        btw, What's that?
        Attached Files
        Last edited by Sephir0th; 07-04-2022, 04:25 PM.
        FairRepair on YouTube

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          #5
          Re: Dell Precision 7510 Coffee Damage. Daughterboard dead.

          It's the CN71 cap with black solder on one pin, from the coffee damage i guess.
          It's on the HDD circuit, i don't think it has anything to do with the daughterboard.
          Last edited by Andreasbest; 07-04-2022, 04:45 PM.

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