I have a similar, but different problem, than the one described under this heading. I own a AKAI 42 in. Plasma Television (Model PDP4290) that is three (3) years old (purchased Nov. 2003). The screen produces about twenty (20) green lines on the left side (while facing screen) when the background image is other than blue.
I have a DVD player plugged in as component 1, and cable television signal running through a VCR which is then plugged into the video in plug.
The green lines appear when receiving signal from either source (i.e., cable, VCR or DVD).
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Unfortunately, what you're describing is a repair
issue. You won't be able to address the problem with troubleshooting.
There is a part inside the TV that needs to be replaced. If you're
under warranty, this will cost you nothing. If you're not under
warranty the cost will likely be a minimum of $200 parts and labor.
However, be warned that the cost could be considerably higher.
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If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
i have a similar tv, with 5 blinking red lights on the power off. is that a power board issue? (I see the small green light ionside the tv, flashing green.,,) the outer light stays red or flashed red when i power off. i replaced the fuses, still same issue.
This sounds like a problem with gas in the panel, early plasmas suffered with similar problems and was due to excessive periods when they were stored face down, a plasma must always be stored verticle and not laid down.
I cannot help you with this but if its under warranty it could be due to either warehouse storage or the carrier.