Vertical black and white bars on lcd screen
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), or2b) 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.