We still have sound and the volume bars come up on the screen, as does the menus. but only black and white vertical bars.
I'm not too familiar with the LG brand, but if the onscreen stuff looks fine (Volume, menus, etc.) then the panel is OK. Try a picture source other than the one you are using now (Tuner, HDMI, VGA, etc.)
1) If it's the same across all of them, then you will need to replace the main board in the TV.
2a) If it only affects one input, it could either be your video source that is bad (which means TV is OK), or
2b) that certain input port on TV is bad, which would mean you either don't use that input any more, or you replace the main board in the TV.
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: the right third of my flatscreen LG TV consists of
either a panel connector has gone or a board inside
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