My 5 year old LG plasma 50px1d-uc intermitently displays a dark vertical line near the top left quarter of the screen that is 1 inch wide by 12 inches long. It is not related to any individual input and remains if you change to any of them. It even remains in "menu" mode. I have several "exploded" views and was wondering if any knows which component board might be responsible?

Here is the answer to that:

http://blog.coppelltvrepair.com/2010/10/vertical-or-horizontal-color-lines-in.html

does the vertical lines appear like solid vertical bard infront of the pictire??

very likely based on age and description a bad panel(screen unit complete)=new tv please.

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.

You could have a Driver Board that has a loose connection or a Ribbon Cable that has a intermittent connection to the Plasma Panel, or a defective Plasma Panel. Either one could cause the problem and I would recommend only a Qualified Service Person to check it out.
Here is LG's Customer Service Number. 1800-243-0000. They could direct you to a Local Service Facility.
I hope this helps,
Sky Assoc

Hello Depending how wide the line is their could be two possible causes.
I have two questions for you.
1. How wide is the line.
2. Does it run from top of screen to bottom of screen?
If the line is thin a single strait line then it is possible the PDP has gone Bad (Panel). (Screen). The screen will to be replaced.
If the line is at least 2 or more inches wide then its a buffer board which can be replaced. LG calls this board Hand insert Boards or display driver boards..

check your LCD connectors. also video memory.

You need to replace the control board

Most likely will get worse as you are describing a failing control bd. The part # is 6871QCH038A and is a fairly complicated repair. A good deal of disassembly required, and I would take advantage of your service agreement.

YES YOU HAVE DRY JOINTS UNPLUG FROM POWER SUPPLY REMOVE THE BACK/ INSIDE YOU SHOULD SEE AT THE BOTTOM SEVERAL RIBENED CONECTORS FROM THE SCREEN ITSELF? UNDERNEATH YOU SHOULD BE ABLE TO SEE 2 OR 4 COMPONENTS CAREFULLY APPLY A HOT SOLDERING IRON AN SOLDER THE ONE THAT YOU ARE HAVEING PROBLEMS YOU SHOULD NOW HAVE FULL PICKTURE AGAINE ANY PROBS email me [email protected]