I have samsung 46" LCD model LA46A550 with normal colored pictures just turned vertical lines in color also. My unit is 2 1/2 years old. The technician from Samsung said the panel needs to be changed. The burnt out rate claimed by Samsung is 100,000 hrs of use mine is only 10,000 hrs use. They are decieving the Consumer public. What can be done ? Thanks for any help or comments.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
Screen-shots to defective LCD are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent. Line faults to LCD TVs too are given with illustrations.

you have faulty t-con board that need to be replace.

hi i have condensation in the back of my samsung lcd tv it turns on but it just flickers anyone can help thanks

Change the Tcon board and you should be back in business.

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.

it sounds like the dmd board is failiing

I talked to a Samsung support helpline and it needs to be taken to a service center for repair.

Need to check the two things.

1st -- need to exchange T-con Board.
2nd -- need to exchange the cables between T-con & LCD panel or
between T-con & Main(LVDS cable)

if the tv is less than a year old , call 1-800-SAMSUNG for warranty repair, the lcd panel is bad

Sounds like Light engine sizzle noise makes me think color wheel.