Question about Samsung SyncMaster 940MW 19" LCD Monitor

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Samsung SyncMaster 940MW screen problem

Hi, I have a problem with my monitor, SyncMaster 940MW. It has been working for around a month 1/2, but now a problem has occurred. Every now and then my screen goes very black, I can make out faintly some of my programs I was running. To make it work again I have to switch my monitor off then on. It works for around 40secs and then it goes very dark again. If i leave the monitor off for a couple of hours it works again, but after an hour or so of it being on it goes very dark again. So any ideas?

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  • tomdude Sep 21, 2007

    Thanks for your idea, but how come it only just started? I did not used to do it about a month ago. But for some reason it is starting now.

  • tomdude Sep 22, 2007

    k, they are giving me a replacement :P
    Thanks for help, solved!

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I am apt to believe this is a known problem. I chose to send mine back to the manufacturer, with the 3 year parts and labor warranty. Possibly they have the problem diagnosed and are only replacing those that call in the problem.
Either way, I found them accomodating and readily willing to replace or repair the unit.
So sad...consumer reports lists the Samsung 940BX not MW as one of their best buys. If you look at the manufacturing origin on the MW, it says Tiajuana, Mexico (my production date of 6-2006). Could be possible to have a run of defective parts. Who knows. Samsung would not like to ruin their excellent reputation with consumer reports...so if I were you...I would opt to have it replaced.

Posted on Feb 19, 2008

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From what it sounds like Tom is that you have a heating problem. As soon as it warms up your monitor goes black. First I would Shut it down for a couple of hours. Unhook the power cord and let it completely cool down. Some monitors have a temperature breaker. When temp reaches a point higher than the set breaker it will shut off or power down. After I would say 2-3 hrs of cooling power it up and see what happens. If after a certian amount of time it does it again you have a over heat problem. If that happens again go to your favorite search engine and enter syncmaster 940mw support. Goto the manufactures web site and find your model. You may be able to find a solution to the over heat there. There is also a possibility there was a recall on that particular model for a overheat problem.

Posted on Sep 20, 2007

  • Thomas Wesche Sep 22, 2007

    That is the thing with monitors. Some of them give little or no warning that they are about to fail. I do stand by my solution though goto the the manufactures web site and see if there is a recall or maybe even some technical data that you can recieve.

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Parental controls


I wasn't able to find a 940MW. I do see a 941MW and a 940NW.
The 941MW manual has some basic instructions on page 36.

The 940NW manual can be found here.

Good luck!

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