Question about Dell E176FP 17" LCD Monitor
Check all electrolytic capacitors and replace those which have rounded tops due to overpressure from inside.
If they are all fine, then problem might be related to old CCFL lamps. You may try to disconnect flat cable from processor board, high-voltage wires from inverter, and cable from front controls. Then take chassis and display apart. On the back side of display, where high voltage wires goes inside, there you will find tiny philips-headed screws. take them off and carefully slide backlight lamps off the display. Check if there contrast black rings over the lamps near to electrodes. If you see some, those lamps must be replased, but meanwhile you can substitute those with 27 pF 3kV capacitors, soldered right over pins of connector on the inverter board. Check if that will make the rest of lamps work. Total brightness will be less, but until you find replacement, the monitor will work.
If CCFL lamps was good (no black rings, no darkened areas), then you may face problem with MOSFETs in primaries of backlight transformers or high-voltage capacitors in secondaries.
Posted on Sep 09, 2009
Try a different monitor, isolate to monitor. Then access manufacturers web site.
Posted on Sep 04, 2009
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Posted on Jan 02, 2017
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