Question about Sony KDF-E55A20 55 in. LCD Television

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After watching the TV this picture goes black, and a red light flashes down below, then the tv picture comes back on after a minute or two. This has happened about 3 times in the last couple of days.

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I have a KDF E42A10 which is LCD projection TV. If your's is a projection TV then the blinking red light means that the projection bulb needs to be replaced. The access door is on the lower right side, fairly staight forward to remove and bulb costs about $150( varrious sourses can be found online). If yours is a Grand Wega there is a major problem that Sony is denying responseblity for. Check out a report by Googling " MSNBC problems with Sony Grand Wega". Would like to get a clas action going for KDFs.If your TV is not a projection then disregard all of the above and I can't help with your problem.

Posted on Jun 28, 2009

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Most TVs have a "Protection Mode" that red light flashes when it detects a failed part inside the tv.
Most likely the tv has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If it's still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jun 28, 2009

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