Monitor turns off about 1 second after turning it on

Hi all!

I have a hardware issue with some of the LCD monitors we have in our office. My problems is not related to video cards or anything else with the computer itself.

I have 2 Dell 17" LCD screens that goes off (blank) after 1 or 2 seconds. The light remains green so it's not idling or sleeping. Just this morning, I had to replace one that goes off on 2 workstations and also on my laptop. Nothing to do with it. I tried the VGA and DVI connection w/out luck.

I strongly think that this is something with a capacitor or something inside the screen but I can't figure out what it is...

Is anybody heard of that kind of issue before?

Regards,

David.

From serverfault r0ca

• It is most likely the inverter that provides power to the backlight failing. This is the first relevant link that turned up in a quick search.

  If, when the screen dims, you can see a very faint image of what should be clearly visible then the backlight failing is the most likely cause and the behaviour your describe (being on for a short time) points at the inverter being to blame. It is a relatively common way for an LCD monitor to misfunction.

  The inverter is usually replaceable though depending on the monitor in question and your level of (or access to) expertise it may well be easier and/or cheaper to replace the monitor. Obviously if the monitors are under warranty you need to contact the manufacturer or your supplier for replacements.

  My five year old 19" LCD went this way and I used it as an excuse to upgrade. Given how many people queued up to take the old one off me via FreeCycle it was certainly worth, to some people, the time and materials cost of trying to repair - your mileage may vary.

  From David Spillett

• Well as he stated, the light didn't go into standby, and there was no picture displayed. That means there was not a faint image.

  It's 2 capacitors that are the problem. It's a known issue that isn't very wide-spread. If you take the backing off of the LCD you will notice two capacitors ont he board popping out. Those are the ones that need to be removed and replaced.

  From Krazie