Question about Samsung LN-T4661F 46 in. LCD HDTV

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Insignia 42 tv horizontal line problems

We have a 42" Insignia TV that has a horizontal line that runs across the screen. It is about 4" wide and has a variety of colors. Could someone please help us with a way that we could fix ourselves.

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One among the back-light CCFL lamp has burned out. Replace it.

Posted on Jan 24, 2013

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Posted on Jan 02, 2017

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SOURCE: vertical lines across my entire screen

My 42" Samsung Plasma HDTV HP-R4252 has a 2" vertical strip of green pixels down the right side of the screen.

My 3 year warranty with Circuit City expires in Nov 2008.. so I hope I'm covered.. can't call until the morning.

Samsung said it might be a logic board problem.. but they want almost $2000 to fix. I might as well buy another TV if Circuit City can't fix it.

Posted on Apr 21, 2008

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SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

I unplugged the TV and now the picture is back.I read that the LCD's are vunerable to static build up so unless my daughter is using her TV I unplug it.

I was thinking about getting a large LCD for the family room but I'm not going to until they improve on this technology.

Good luck to everyone!.

Cheers.

Posted on May 08, 2008

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SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

This should be repairable. It may be the LVDS Cable or the Main board problem. The only other problem is the T-Con Board.

Posted on May 23, 2009

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SOURCE: Insignia(samsung) 50" plasma Vertical red lines

I would take it back. I know from purchasing an Insignia LCD from them a while back, the TV just died after about 4 or 5 months. They ended up offering me another TV or with store credit. I took the store credit and chose another TV. I also did not have a warranty. I was told since it was Insignia (which is a Best Buy house brand) that replacing it was not a problem. Good luck.

Posted on Jun 30, 2009

  • 5 Answers

SOURCE: Samsung Plasma TV has horizontal lines of colored dots

I have the same problem, currently searching for a solution. Have you resolved your problem yet? Looking to repair myself, any tips or ideas that you have/expirenced would be greatly appreciated. Thanks, Todd

Posted on Dec 22, 2009

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I have these faded lines running across the top one quarter of my insignia hdtv horizontally. under that the rest of tv is clear picture.it is a insignia 27 inch hdtv model number ( is-tv040927)


Horizontal lines like you describe can be caused by interference from another device. Ensure that you don't have other electronic equipment near the TV. It can also be indicative of trouble with the display itself for which repairs might be required. If needed, service can be obtained by carrying the unit in to the place of purchase.

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The vertical output IC LA7847 is failing. It will likely fail permanately and you will have just the horizontal line. The set will require service. Just do not run the set very long in this state. That thin white line can likely burn into the crt phospher and will show all the time thus ruining the glass picture tube...

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