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Re: thin red line in middle of screen on nec 42 inch...
I had the same problem -red, vertical bars along the right side of my Samsung 42" Plasma- and this is what fixed it: Removed unterminated cable. I had hooked up an HD video camera to the set about two weeks ago. While I disconnected the camera I left the other end of the connector cable plugged into the T.V.. As I've since learned from friends who work in television, this is what's called an "unterminated cable" -meaning one end is unconnected. It can lead to problems with electrical interference and appears to have been the problem in this case; When I disconnected this cable from the T.V. the red bars went away. So, check your cables. Make sure everything is properly connected and get rid of anything that might be picking up interference.
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