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LCD Monitor 15" with backlight problems

Discussion in 'Electronic Repair' started by Ivan, Aug 16, 2007.

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  1. Ivan

    Ivan Guest

    Hi, I have this monitor with a problem at backlight inverter.
    Before I had this problem, the monitor even shut off lamps (but picture
    still on screen) and I simply turn it off and on again until it never turned
    off lamps anymore.
    I opened it and discovered that a surface mounted fuse on the backlight
    inverter blows up.
    I try to short circuit the fuse and turned on but seems that never will
    When I re opened it, i realized that backlight inverter pcb has completely
    blown (pcb tracks and components melted).
    Now I found on Ebay some backlight inverter that should work with my monitor
    but how I can be sure that all this problem has been caused by a inverter
    malfunction and not caused from lamps?

    The monitor signals are ok, power supply to inverter it's presents and
    dimming too.
  2. To be sure replace the lamps and inverter at the same time.
  3. Guest

    Tell me the LCD number maybe I can help you
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