Question about Samsung HL-R4266W 42" HDTV-Ready Projection Television

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Screen flickering Screen flickers when the screen is very bright. Doesn't happen everytime but more often than not. Notice it mostly with a lot of white on the screen, impossible to watch a hockey game. Was happening with my PS3 till I moved it over to HDMI, since then no problems. This problem occurs on both Component 1 and 2.

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  • tcs_lucky Jul 15, 2009

    the problem stops once the brightness is reduced. However, I've noticed that it happens mostly on HD channels. Also, I taped a show on my DVR and the problem occured. I rewound the show and replayed it and the flickering occured at the same exact time as before.

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Does it stop or does the problem dissapear if the brightness and contrast are reduced, If it does, a common problem with the conventional CRT TV`s was the capacitors in the power supply. Basically, they dry out and that`s when the problems start. In some cases if it`s really bad, you can hear the power supply twitching as the voltage starts to drop on the secondaries. Hope this is helpful, Ian

Posted on Jul 15, 2009

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What can i do to stop my screen flickering ?


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Hi..i am using compaq presario cq 40 and screen is flickering.i had it checked and they told me lcd is the problem but they didnt even bother to check.they just turned it on and they told me that i have to...


When it flickers, can you still see the text when the screen goes dark?
May have to use a bright flashlight set right on the display to see
the text on the screen beside where the light sits.
That will tell you if it's the backlight.

You can also look at a grazing angle into one of the edges to see if the
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When it's cold, does it start with a slight pinkish color? That can be
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Anything interesting happen when you flex the cable by moving the screen?

I'm not saying it's impossible, but I've never seen software cause
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If you bet the odds, you'd bet on a bad display cable.
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Hello,

The problem can be caused by 1 of 2 things either your power supply is going out or the backlight bulbs are going out. The most likely cause is the power supply. If you are willing to do a little soldering you should be able to do the repair. If you go to our web site at: www.ccl-la.com/badcaps.htm We have a section on monitor repair. Look under the Samsung 930B it is the same as your monitor.
If you don't want to do it yourself we do offer a repair service, email me if you are in need of that.

I hope this helps.

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Not a motherboard issue. If the screen looks pink it means the backlight tube inside the screen ain't reaching full brightness (the tube has gone bad). If it flickers? Well... remember them good old florescent tubes and what happened when they go bad? Same thing.

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Hi there
If I understand you correctly from start up the screen is dim but does brighten up after time? But now after start up you are getting a flicker how ever a restart solves this.

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The flickering is a bit of a concern.

Just a couple of questions.
Are there any dead spots on the screen? Areas where there are no pixels.
When you tilt the screen forward and backward, does this effect the brightness or flickering?

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