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replace lcd monitor ccfl backlight?

Discussion in 'Electronic Repair' started by [email protected], Jan 13, 2007.

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  1. Guest

    I have a lcd with a bad ccfl backlight. It has dark spot at both end of
    the tube. When the lcd is on, the bad one flickers and has less light.

    Question: I found a good backlight from a broken panel(different panel
    model #) with the same length, diameter. However, I dont' know the
    lamp's starting voltage, working voltage and watts.

    If i want to swap the lamp, do i have to know these parameters?
     
  2. Guest

    Most of the ccfl lamps will work anywhere between 900 and 1200 volts
    AC.
    They are fairly interchangeable, if about the same size.
    I have even used a lamp from a flatbed scanner in a LCD monitor.
    The lamp was an inch shorter and about twice as thick, but it still
    worked until I could find a better one.
    I would try it.
    Hope this helps....
    John
     
  3. James Sweet

    James Sweet Guest


    Watts is determined mostly by the inverter rather than the lamp. These
    things are all pretty similar, if it physically fits, there's at least a
    90% chance it will work perfectly. If in doubt, wire it up to the
    inverter in the monitor before you actually swap the lamp, if it lights
    up you're good to go.
     
  4. hr(bob)

    hr(bob) Guest

    James is right on!!

    H. R. (Bob) Hofmann
     
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