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820-2936 screen changing colors

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  • #16
    pins 2 and 3 on J9000 now 0V

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    • #17
      External video still good?

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      • #18
        No external video now

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        • #19
          Bad PCH then...

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          • #20
            I have replaced PCH twice now and cant get a fan spin again. After first replacement thought maby bad pch or bad soldering since the light on charger came on but no fan spin and only drew .140amps so tried another PCH from donar board. I know my soldering is good but now I have no light and board only drawing 0.35 amps.

            what am I missing? Are pads on board damaged beyond repair possibly?

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            • #21
              Ye I am using bios with new me region

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              • #22
                You must check Power On Sequence now.
                If only touched PCH, should be bad chip, broken solders, or some surrounding component moved.
                Post some basic signals/voltages...

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