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Might be worth the effort to open it and have a look for loose plugs or a ribbon cable somewhere--if do look for any plugs that are held down with tape near where they plug in.
The screen flicker than go blank,does it still have power to the tv set?Yes,than this cause only can be causes by only 2 boards in the tv can causes this problems,if tv power still stable for the set.The T-CON board it shorting out and dying for this problems to happen or worst case causes the Main board tv Tuner signal board it dying.The T-CON board the priced it is cheaper and could cause this problems too.Tries change this T-CON board first,see what happen.This board T-CON board sit at the bottom in the middle of the LCD screen panel to decodes pictures pixel before it go onto the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON board for the replacement.
Tv "LAMP" LED light is flashing?Yes.Projection lamp might have to be replacing?LAMP been iside the tv like 1 1/2 or 2 years,tv used daily like 4 or 5 hours a day?Yes,replaced the projection lamp,will solved the problems.
Sony incorporates a video blanking circuit that blanks the picture out when the picture tube begins to get weak. sorry, but short of replacing the tube, there's no lasting solution to this problem. I used to have some success rejuvenating the crt, but I found that it didn't last but a few hours before the blanking circuit starts to activate again.
Their is no more you can do. You need a professional. Stop using the TV until it is repaired. Continue to use the TV and your problems WILL multiply. Call the manufacturer to find you nearest authorized service center.
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A temporary solution is to unplug the TV for a few minutes, remove static from the glass with your hand. It is important to unplug rather than turn off. If you have a degauss button you can also press that before unplugging. Wait several minutes or an hour. Then plug it back in. If you have Picture in Picture it may be an issue with that and to permanently solve may need a repair person. The unplugging may get you by for a few days at a time. That's at least better than an hour.
I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.
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