troublehsooting defective DC jack, Inspiron 4150

Discussion in 'PC Hardware' started by teamgs, Apr 21, 2006.

  1. teamgs

    teamgs Guest

    Greetings,
    Before finding a used mobo ($900 new from Dell!!!), I thought I
    might try repairing the issue myself. I am fairly handy with a
    multitester, and soldering iron (though not so much so with PCB's).

    The unit in question apparently was damaged when the family dog chewed
    through the AC adapter cable. The laptop no longer recognizes that
    the adapter is plugged in nor does the battery charge. However, the
    laptop functions fine when connected to a docking station, and the
    battery charges. The DC jack appears to be physically attached
    properly to the mobo, so I believe that a something in the circuitry
    from the jack was shorted.

    Any suggestions to go about troubleshooting this issue, or links to
    sites with more detailed information?

    Regards,

    Gary
     
    teamgs, Apr 21, 2006
    #1
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  2. teamgs

    Conor Guest

    First port of call is any diode in line with the +ve track from the DC
    jack.
     
    Conor, Apr 21, 2006
    #2
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  3. teamgs

    `AMD tower Guest

    Is the proper voltage present at the jack that
    plugs into the computer?
     
    `AMD tower, Apr 22, 2006
    #3
  4. teamgs

    teamgs Guest

    Thanks for the reply Conner

    I assume that you mean check the voltage on the back end of the jac
    with the adapter plugged in? I will give that a shot tonight.
    will also check the output of the adapter, even though it i
    supposedly a brand new unit, I don't know if the user did anything t
    it

    Regards

    Gar
     
    teamgs, Apr 24, 2006
    #4
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