Compaq TFT 5015

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  • fabricator
    New Member
    • Apr 2007
    • 8

    #1

    Compaq TFT 5015

    Got given one of these, told the usual "maybe you can fix it.."
    When plugged in its produced an acceptable picture for 50% of the time. Backlight was strobing at around 1hz.

    It uses two CCFLs from the same inverter, so first step was to test each one at a time.

    Fault was fixed by replacing the rather puny looking Sanyo 100uf 25v with a new ESR cap. The old one tests fine on the capacitance meter but a new 63V cap fixed the problem. ESR gone through the roof converting the Buck inverter into a oscillator.

    Found this thread which describes a similar fault but without the solution.
    https://www.badcaps.net/forum/showth...ompaq+TFT+5015

    76 cents for a new test monitor

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