Question about Sony Bravia KDL-32V4000 32 in. LCD TV

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Kdl32v4000-------the tv has a band of colored lines near the center of the screen they stay on the screen all the time

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This is normally an indication of a bad panel(screen) and would not be worth repairing if out of warranty as it would cost about as much if not more than a new set would. You may still want to let a tech run some tests to make sure, but about 80% that I have worked on with the colored bars have been a bad panel.

Posted on Sep 01, 2010

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Posted on Jan 02, 2017

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Why does my TV show discolored vertical bands and can I fix it at home?


The T-con board controls the picture elements on the screen. Usually replacing this board will solve the problem. If you can touch the screen and the lines disappear and later reappear, that says the screen itself is defective. The only fix is to replace the entire screen.

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I got multiple thin colors on the middle of the screen


My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display issue (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 updates will be on my Facebook page.

Aug 17, 2011 | Toshiba REGZA 52RV530U LCD TV

2 Answers

2/5 of the screen has vertical lines multi colors. Is this a fixable problem?


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 resolution updates will be on my Facebook page.

Jul 24, 2011 | Toshiba REGZA 52RV530U LCD TV

1 Answer

My zenith lcd tv has horizontal black lines whih form a band about 3 inches wide across the screen, sometimes the band looks more like a dark shadow than lines other times the right side of the screen...


This is either 1 of 2 things, first it could be faulty panel tabs , in this case, there is nothing you can do and is unrepairable....2) you could take the back off the tv and you will see 2 ribbons going from your t-con board to the panel tabs (top center of tv) remove them carefully and reseat them. This is a common problem. Tv repair tech 15 years! Best of luck.

Dec 05, 2017 | Zenith Televison & Video

1 Answer

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.

Apr 11, 2011 | Toshiba REGZA 52RV530U LCD TV

1 Answer

Green band


http://www.mitsubishi-tv.com/support.html
click warranties...
Important Warranty Announcement for LCD TV Owners

Jul 26, 2009 | Mitsubishi LT-52244 TV

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Color band lines scrolling across my screen


That sound like your picture tube is doing. Also if you have any speaker near the tv it will effect it because of the magent.

Dec 22, 2008 | Panasonic Televison & Video

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Visible bands moving up the TV


The bands are caused by unsheilded power cables that are near the
set. sometimes your tv cable or antenae cable is near a power 
source and it is picking up unsheilded EM signals. Remove all
power sources near your tv and tv cable.  

Nov 09, 2007 | Toshiba 62HMX84 62" Rear Projection HDTV

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