Sony model KDF-E4210 TV works fine for about 20-30 minutes on HMDI video 6. After that, the HD channels scramble (wavy video). I have swapped out and used the component cables and the same thing happens. Time Warner came out to check their box and all checks out.
Coincidentally, this started after I purchased a Wii and go back and forth from Video 2 (wii) to Video 6. Now is happens just on Video 6 after 20-30 minutes. Could this be an issue with the TV?
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It has caused a screen bleed of the pixels. There is no way on repairing this unless you replace the whole screen which will cost as much as the t.v. itself. As time persist, the lines will become larger as the crack will spread.
The impact must have broken the fluorescent lamp which is the LCD panels back lighting . Go to the back of the TV and with the room lights off look through the holes in the back of the TV. If the CFL lamp works you will see some white light bleeding at some spot near the bottom. But if it does not light up it might need replacement. You will need professional help and please take a quote inc: services charges because it is going to cost you. Good luck
I doubt if there is room for drilling to easy out, if you have a hack saw, first hit it straight on with a hammer, once, then cut a slot across the center so you can try using a screw driver, if or since that didn't work try a small punch to tap the bolt out by catching it on the edge to push it around ( be prepare for this to take at half an hour) care not to nick the gasket surface. If you should happen to have a electric welder, tap a hex-nut onto the end with a hammer, protect the surface and all thing that might burn then try welding the nut to the bolt threw the hole in the nut, let it cool and turn it out with a wrench. To get to a friends house or shop that might have the tools, use a lot of rtv sealant to put the new one on, let it set fully
You can have them repaired using a TV Repair guy but often it costs as much as a brand new tv. My daughter broke my $1,600 LCD. It would have cost $1,200 to fix.. so I just bought a new one.After that I picked up a TV screen protector called TV Armor http://www.tv-armor.com Its designed to protect the TV from damage. Now I dont have to worry anymore when she is playing near it. It works really well.
It has a problem in the vertical sweep circuit that puts a nonlinearity
in its output and you see the glitch in the normally gradual sweep as a
line. Since a hit upside the set seems to help, you should just
resolder the whole vertical circuit area (doesn't take long) and see if
that cures it. If not, start replacing the electrolytic
capacitors in that area.
Hope Ya Fix It!