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Can someone help? I have a panasonic 50inch plasma and when direct tv is on there are purple horizontal lines, faint and more visible in dark scenes. With a dvd player there are "braid like" horizontal lines. I have switched cables, ran only the display and either the set top or the dvd alone, disconnected sat & antenna cable, use power conditioner, installed dedicated isolated ground circuit. Set top is a samsung ts360, same results with three different dvd players.
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i would disconnect EVERYTHING from the Plasma Display (minus power).... Then connect a camcorder (IMPORTANT: running on batteries and not using the AC adapter)...check the picture... Still getting the lines? you have a display problem! not getting the lines anymore? likely a ground-loop....
Thanks Sam. I shall give that I try. I did isolate the power to the plasma but I still had either the dvd or satellite hooked up.
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