This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
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Check the cable connections to make sure they are not loose. Do you see the image still on the screen when the light goes off? You might have a bad backlight inverter which would cause the light to flicker.
Any monitor will work with any computer provided the correct graphics card driver is installed. When you install Vista and you do not install the graphics driver, Windows will default to Generic VGA driver and you will not get the best resolution that the monitor can display.
unsoldering is the only way to UN-mount capacitors the board needs to be out of the casing. a solder iron and some electronic solder wire can be bought at radio shack or any other electronics store. procedures are all over the internet
How have you connected the monitor to the computer?
Is it through the vga or the dvi port?
Pls press the monitor menu button and change the mode to vga or dvi depending on the connection that you have now.
You might also get a vga to dvi adapter and connect the monitor to the computer.
I found in the refuse, a Gateway FPD 1520, 15" LCD monitor that started off losing the screen half-way, losing sync, etc. The "mechanical agitation" method was applied and remedied the problem. Awhile ago, it went to a white screen (or, as it was back in the day- a clean raster). I opened it up and found that the ribbon cable on the left was loose. I applied a series of layers of adhesive-backed foam (the kind you stop drafts in your home with) until it was greater than the height of the metal enclosure to put pressure on the unbehaving connector. It does seem a bit loose and this will keep it snug. Maybe hot glue or other adhesive if it wiggles loose again. Seems to have solved the problem at the moment.