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Something is changing inside the TV. Most likely a voltage from the power supply since that would affect the different circuits that are causing multiple visual symptoms on the screen, and as the voltage returns to normal; all of the symptoms go away. Suspect the main power supply board in the TV, Most likely there are faulty filter capacitors that control supply voltages by filtering out AC interference.. When they start to go bad they begin to run warm and it takes them longer and longer to start working correctly. Probably (probably) when you first noticed the problem, it went away in a few minutes and it is taking longer and longer for it to clear up.. Sounds like they are close to quitting completely !
If your LCD still under warranty, I would suggest to get fix before it gets worse.
The screen is defective since the line only appears intermittently but you can still try replacing the T-con board first.
Most failures with lines appearing on the screen are caused by the T-con board. The Tcon board part number is:LJ94-02582B or 75014321 and you can find it here.
the minute parts near the picture tube might have misaligned ,,,,,, you need to align those parts .... contact a good tv mechanic .... he will use a magnetic type material and align every minute parts correctly near the picture tube, the red line wont appear again
My Samsung DLP is having the same problem. Not sure what to do, but I will contact my warranty place for the second time. Hopefully they'll fix it. Any other suggestions?
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