I have a LG plasma 50 inch tv with a fine vertical black line in the center of the screen that runs from the top of the screen to the bottom. The tv is about 2 yrs old and the line just showed up a day or two ago. What is the problem and how can I fix it to get rid of the line?
SOURCE: blue vertical line thru picture
It is called "Thin vertical lines" and change colors depending on the background color.
It is fixable but there are several components that can show this sympton.
You will need a tech to fix it in order to save money (because you do not want to buy a board you dont know if will fix it).
Possible Solutions:
Replace Timer Control Board, if it is not fixed
Replace Sustain Board.
One of those boards needs to be replaced and I wrote the most likely first.
SOURCE: LG flat panel plasma with red line
I had the same problem and fixed it by replacing the control board. It's a little nerve wracking, but required only simple hand tools. If you'd like to see detailed pictures of the repair check out my blog.
http://greenrenovation.wordpress.com/du-42px12xc-repair/
SOURCE: LG RU-42PX11 42 plasma TV has black bar
it seems to be a bad connection somewhere but I disconnected the ribbon cable and got a verticle line of snow instead of a blank line. the line is about 34 mm wide and starts 285 mm from the left edge starts on the Blue and goes to the Red pixels. so if they are 1mm wide that would be 34 bands of color.
I would sure like to figure out the solution to this one or I got a TV I need to throw away cause the o'lady is gonna bust my balls if I can't fix this!
SOURCE: Have LG 42 inch plasma, 1 inch black line down
Sounds like the middle scalar board is defective. Since the issue comes and goes it could just be a loose connection to the between the scalar board and the PDP Module (plasma panel).
Great caution needs to be taken when checking this connection because it is a ribbon cable connection it and needs to be put in correctly aligned or it could cause a short in one of the circuit boards.
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