Question about Sony KDF-E42A10 42 in. LCD Television

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Sony turns off and on by itself

My sony tv turns off after 30 seconds then back on for approx. 30 seconds and off and on. We can't seem to figure it out. We had Sony look at it and they don't know what is wrong.

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  • Anonymous Feb 03, 2008

    My three years old Sony KDF 55WF655 rear projection LCD TV turns off then back on after about 2 1/2 hours of being turned on manually. The green power light flashes for 30-45 seconds while the TV 'resets'?. Could this be a power supply problem or is the buld overheating and tripping a protection circuit? I have not replaced the buld.

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The lamp almost always causes this problem. The Sony lamp when about to fail will cause the unit to power off interminttently. Replace the lamp and this will correct the problem.

Posted on Feb 22, 2008

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Hi. My sony KDF-E50A10 will turn on for about 30 seconds, then the picture and sound go off, the standby/power light flashes 49 times green and the set turns back on. After 30 seconds, the same thing...


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If you bought it brand new from a dealer, I would take it back or have them come out and look at it. Less than a month old, it is still under the 1 year MFG warranty or the very best a 30 day one.

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I may be late with this but it souonds once again ike dust in and on the bulb cage. These TV's will turn off by themselves if they over heat. The extra dust(not much) can/will cause the TV to heat up and shutdown for a few seconds to a minute. Depending on the time of year and location of the TV can vary.

Try removing the bulb and cleaning it with compressed air and a micr fiber towel. Of course don't touch the blub itself as the skin oils will cause it to break.

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Sony KDF-E50A10 50 in. HDTV stays on for 25 - 30 minutes then shuts off by itself power stand by light flashes green and turns back on in about 20 seconds by itself. can you help?


Hi, Lamp of TV getting weaker and requires replacement. This shut off by itself will increase day by day until you put new lamp in TV. Always Buy Sony original lamp and avoid aftermarket/ cheap lamp for TV safety.

Jun 09, 2009 | Sony KDF-E50A10 50 in. LCD HDTV

1 Answer

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Have you replaced its Lamp?
Symptoms shows TV needs new lamp.
Please always buy original Sony lamp for replacement.

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It needs a new bulb, same thing happen with me. jut get a bulb for this model and change it. if you call sony service, it will cost you about $500.

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