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Re: wESTINGHOUSE FLAT SCREEN TV
Water damage/stains possible on backlight panel behind LCD panel. I've seen this more on laptops. Does it look like brighter white spots? You might have to take it in to have it professionally cleaned.
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Use a screen cleaning solution, very cheap little canister of anti static spray and usually comes with lint free cloth for light polishing.
Couple of quick squirts of solution then very gently wipe over the whole screen until all the dust has been absorbed and the wet streaks evaporate.
Don't need to go mad scrubbing, just light polishing.
A damp cloth is just as good but only damp and not dripping water, just wipe over screen. The only problem with that is it leaves streaks so just wipe over with a dry kitchen towel or something similar.
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.
hi this fault sounds like a bad tab/ribbon fault, at top of the tv are ribbons connector to the screen, when one is faulty the heat makes them flex causing this fault, you can bond the ribbon down with a bit of rubber to stop it flexing, but this not a permanent repair as it is a screen fault. hope it helps
Sounds like the LCD Panel, if under warranty contact Samsung warranty for service. If out of warranty, watch it until you tire of it then replace the unit as the cost of a new panel is more than a new unit.
I had the exact problem and couldn't do the factory reset or another reset that a Westinghouse tech told me to do over the phone - BUT I FIXED IT! This is what I did. With the TV facing me and power on and connected to my cable antenna (like normal - ready to watch TV) I took my right hand and started pressing all different buttons on the side of the TV in different order at random. All of a sudden the big W came on the screen so I called back Westinghouse technical assistance and she told me go to menu - then TV - then scroll down to channel search. Since all my cable channels are on channel 3 on the TV - the search found that channel and the picture and sound came on and works fine!
This is nothing to be afraid of. In LCD screens, it takes some time for the liquid crystal to heat up. Thats why manufacturers warn you not to change screen settings immediately after switching your TV on.
Hope this helps