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820-2936 with No Webcam

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  • 820-2936 with No Webcam

    2936 that does not detect webcam, already tried 2 different display assemblies. Where should i start?

  • #2
    webcam is a USB device, check voltage on pin 6 and diode mode on pins 2 and 3... Also could be a bad L3407 ....
    Last edited by aprendiz; 07-27-2017, 06:44 PM.

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    • #3
      Pin 6 is strange, it goes up and down between 1.1v and 3.4v

      and diode mode on pins

      pin 2 -1.75
      pin 3 -1.73

      and L3407 seems good compare to known good board.

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      • #4
        Ok discovered that L3408 was visibly bad and i replaced it, now i get 5v on pin 6 and the green webcam led lights up but there is no image in facetime or photobooth, not even the no camera logo its just black.

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        • #5
          Replace L3407. It can measure fine on a meter but still not be sufficiently well to pass high speed data.

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          • #6
            Camera is dead, that is also what fried the coil in the first place. Try with known good camera.

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