Question about ASUS MW221U LCD Monitor

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Screen Freezes then goes black!

This is an 2 weeks old screen, couple of days after purchase it started to freeze the picture and then the screen fills with a black color till its completaly black and usaly some mins later its fine again :S ( sometimes longer hours )

Got dual monitors conected so its not a pc problem defenetly a motitor problem :(

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6 Suggested Answers

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SOURCE: screen goes pink and green starting with a few pixels

Best thing to do, try a different known working monitor to hook up to the computer. If the screen works and doesn't change colors then you know its the original monitor that is bad.

If you hook up the known working monitor and the same problem happens then you know its the video card that is bad and the video card would have to be replaced.

Posted on Aug 23, 2009

  • 466 Answers

SOURCE: My Asus PG221 monitor suffers from frequent issues

I'm afraid this looks like an electronic fault. Some component, most likely a capacitor, has degraded, is overheating and going out of spec.

You just might be able to squeeze some more hours of work - but the monitor is still likely to drop dead any moment now - by rigging a computer fan on the backside to extract hot air from the inside.

Possibly, the problem might have a noise factor - try adding a ferrite shielding on the cable (unless one is already there, as it often is) and see whether the thirty minutes' grace period extend somewhat.

A probably unsatisfactory solution might be to drive it at a lower resolution, so that the more relaxed frequency constraints do not stress the component so much.

When the capacitor finally blows, you might be able to recognize it and have it replaced; it's likely a US $1 component and is probably in the LCD driver section. Perhaps, just perhaps, you could already be able to see it with the naked eye looking for a component that looks "wrong" - a small cylinder that looks bloated, with electrolyte leaking, whitish powder around the base, etc. But you would still need some solder work to get it replaced - and, if it's a SMD component, chances are it can't be done at home.

Sorry for the bad news...

Posted on Oct 22, 2009

  • 11361 Answers

SOURCE: The monitor screen go to black after 5 seconds

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for:
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Posted on May 16, 2010

  • 732 Answers

SOURCE: We have just purchased this MT276HE monitor by

doremo, Try ATI 5700 card on old Win XP system with Acrobat 9.2 If problem ceases to occur, I would blame Win-7 for your problems!! 12fixlouie

Posted on Oct 21, 2010

  • 220 Answers

SOURCE: computer screen does not fill monitor screen -

Please check the resolution settings which should be at 1366><768 or 1920><1080. Also check that you have not slected 16:9 aspect ratio accidently. Samir

Posted on Feb 07, 2011

  • 317 Answers

SOURCE: monitor is displaying colorful verticle

Try to trouble shoot your video card or unattached your video card from your board and clean the bronze part with a pencil eraser and re attach it again and try if it will work if doesn't the problem is in your video card why because you already used two different type of monitors but still the problem is there..

Posted on Jul 05, 2011

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1 Answer


are you sure that its your screen? try another screen if it does it. if not, then try using a differant res and refresh rate.
beings that your screen freezes and then goes black on exit.
I would say, your game is heating up your computer by useing stuff that usually dont get used. try removing the cover and carefully cleaning all heat sync's so it can breath.
if the problem continues, please report back, with more info, on what game and what model system you have with operating system. also if you added a video card.

Apr 09, 2008 | Computer Monitors

1 Answer

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HP's are known for bad capacitors in the power supply.
Replacing them is simple if you know how..not so simple if you don't.
Try your local TV repair centre. It should not cost alot to have the capacitors replaced.

Hope it helps =)

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1 Answer

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Normally when an LCD monitor goes black, it is because the inverter goes out (which essentially is the backlighting).  To verify this problem, hold a flashlight up to the monitor while it is turned on and see if you can "see" the picture.  If this is the case, it could be repaired, but realistically, the cost to replace it might be cheaper (and you would probably end up with a larger monitor to boot).

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