Possibly coincidental, after installing direct TV my plasma occasionally has a color bar appear from top to bottom like a split screen. Color varies from green to yellow to red. usually appears after set is on for 15 minutes or more but sometimes disapears after 30 minutes only to reapear.If a video or CD is played it does not appear.
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The TV is design for 16:9 format. The bars appear when the TV off showing that the TV has been watching under channels which is have 4:3 format for long time. The screen was burn out because no sweepping to those area. This is not critical problem but you can do nothing to fix it. To eliminate it a bit you shoud read the manual, I believe it has mentioned how to roll or sweep the screen. For plasma TV, if you keep watching 4:3 channels fomat, you shoud do it one a month within 30'. Good luck
That is what is called BURN IN or as the manufactures call it "IMAGE RETENTION". Basicly what this means it that you have been putting more hours on the part that is darker the smaller part, or the 4x3 picture or the square part. And, basicly the part that appears to be lighter is "LESS" worn out than the other part of the plasma tv. There is no fix for the problem, But if you go into the menu and select "BURN-IN" OR "Pattern sweep" or WHITE Screen than you will see exactly what i mean. Now, you can keep it on this pattern overnight if you would like, but i suspect it will not cure the problem, but lessen the effects of it. But keep in mind, you are reducing the life of the complete panel when you do this. Not that it is bad to do this. If you have anymore questions don't hesitate to ask anymore questions. The better fix is to Switch over to the "Dish Network and than you can format the screen on any channel in any mode. Superior product to cable. Have a great day. And watch out for the snow storm coming. GURU JAY