LCD Backlight Replacement

Discussion in 'PC Hardware' started by Davej, Jan 14, 2015.

  1. Davej

    Davej Guest

    After replacing the LCD backlight bulb in an HP G60 laptop (and finding the root cause -- a burnt mark indicating arcing between one end of the backlight and the grounded LCD frame) and also replacing the inverter board -- I still had no light.

    After puzzling over this situation for a very long time I realized that the old bulb was still intact -- if I resoldered the end wire.

    I tried plugging in the old bulb -- it worked. So the new bulb is defective, or I managed to damage it during the installation.
     
    Davej, Jan 14, 2015
    #1
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  2. Davej

    Paul Guest

    It's either not the right one for the job,
    defective, or out of spec.

    In terms of probabilities, you're more likely to
    need a new inverter than a new CCFL tube. The CCFL tube
    can last to around 25000 hours. The inverters vary in
    quality.

    You would hope when someone sells you a replacement
    inverter, they sell CCFL tubes that match that inverter.
    Increasing the odds that combining the two, new, purchased
    items, will work.

    Paul
     
    Paul, Jan 14, 2015
    #2
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  3. Davej

    Davej Guest

    I just opened the LCD up again to take a look and apparently I broke the new tube during the reassembly. That makes more sense than a defective new tube.
     
    Davej, Jan 14, 2015
    #3
  4. Davej

    Paul Guest

    I guess your next laptop will have a LED backlight...

    Paul
     
    Paul, Jan 14, 2015
    #4
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