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Dark band lcd tv

I have a Samsung LN52A55OP3. It's developed a dark horizontal band about 3" wide about 2/3rd down from the top. It appears to be darked on the left half of the screen but does go all the way across. It appears to be green since it's not too noticeable when I watch golf or football, but it's always there.

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Back-light fault. Contact any service technician. The panel might be taken out for repair. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Posted on Mar 24, 2014

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Posted on Jan 02, 2017

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SOURCE: Dark verticle line down screen

u have bad lcd panel

Posted on Apr 15, 2010

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The screen has colored vertical lines and becomes to a dark black band about 6 inches of width.The tv is exactly two years old by today.


My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display problem (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

http://on.fb.me/mVwhVN

I already swapped out the TCON board with no improvement and replugged the TCON board cables with no improvement.

Most likely it is the flat panel tab bond failure (panel made by Samsung). Further solution updates will be on my Facebook page.

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