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    Diagnosing DEAD DV6103nr - DV6000 series

    Discussion in 'HP' started by mcweb, Aug 22, 2009.

  1. mcweb

    mcweb Newbie

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    As payment for another job, I took a dead HP DV6103nr. I am trying to diagnose if its the motherboard or something else.

    - The notebook is completely dead, no lights, won't power on.
    - I get 18.9 volts from the end of the AC adapter power tip where it plugs in.
    - I have completely disassembled the notebook. I get 18.9 volts through the USB/Power Jack board, which is separate on this notebook, all the way to the motherboard.
    - When I disconnect the USB/power jack board from the MB, and plug in the AC adapter, the blue light on the USB/power jack lights. As soon as I connect it to MB, lights out.

    Would this indicate replacing the MB?
    Anyone have any experience with this? Thanks!
     
    mcweb, Aug 22, 2009
    #1
  2. Th3_uN1Qu3

    Th3_uN1Qu3 Notebook Deity

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    If the light goes out when you connect the power board to the mobo, there is a short somewhere on the mobo. My guess is either the battery charging circuit or the power MOSFETs around the CPU socket.

    In any case, the mobo is fried, and if you don't have the tools to work on it you should order a replacement.
     
    Th3_uN1Qu3, Aug 22, 2009
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  3. mcweb

    mcweb Newbie

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    It was a fried motherboard, NOT the USB/Power board. Looked like a burned IC beside the main power plug on the motherboard. Instead of finding and soldering that IC, I got a replacement motherboard for about $75 and all is working now.

    Thanks :D
     
    mcweb, Aug 27, 2009
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