I suspect the LCD backlights are faulty and cause the Lcd monitor to shut down the backlight.
Question: If i connect the suspected backlights to another good 15 inches LCd monitor and turn it on.
Will it damage the good 15 inches LCd monitor?(both are HP, 15inches, but different model and use different LCD panel and different inverter design. The inverter plug for both of them are the same. number of lamp in the panel is the same)
Will this test whether the backlight is faulty?
I just repaired a KDS monitor with the same problem. Was bad caps in the power supply...Paul
snipped-for-privacy@yahoo.com wrote in news:1162761001.781390.173540 @h54g2000cwb.googlegroups.com:
It would make more sense to plug the lamps into their original power supply, turn it on, and measure the voltage coming to the lamps. You do have a voltmenter, right?
If no voltage, either fix the power supply, or replace it, with an original from the monitor's manufacturer, or online, for example, here:
If the inverter is working correctly and you hook your voltmeter up to it you will probably smoke your voltmeter unless it is rated for about 2 KV which most arent. Check the fuses on your inverter board, that is a common failure.
Oh and BTY the lamps rarely fail completely. They usually just get dimmer and dimmer. Odds are the inverter has failed.
Another thing that happens on occasion is the lamp ages to the point where the inverter shuts down. If it doesn't at least blink once then the inverter is likely bad though.
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