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LG 47LD450 comes on, then unexpectedly shuts itself off. No standby power indicator, no nothing. It turns itself back on after 2-3 minutes. This isn't a sleep timer issue. What else could it be?

This TV is about 3.5 years old, used maybe 5 hours a week. It was working great up until yesterday. When I turn it on, it works like normal, recognizes all inputs, acts like it should for about one minute. Then, without any input from me or from any devices, it shuts itself off. This is a hard off, without the standby power indicator on. Again, when the TV is on (for the minute or so it is on), it functions completely normally. I haven't moved it or messed with anything inside it, and the sleep timer isn't on. What could be the issue? Thank you!

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  • 62 Answers

Well I'm not a T.v. expert but sounds similar to over heating problems. Is the ventilation covered or filled with dust? Try unplugging it and take an air can to the vents to blow out any dust it's collected over the years.

Posted on Feb 10, 2014

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SOURCE: Audiovox LCD FPE3206 problems

Hi, All.
I ordered a new power supply module on ebay. Cost about 106.00 delivered. Came in a few days. I replaced the unit, bunch of screws, all wires were cable plugins, no problems at all.
After reassembly, it worked. What can I say? Sometimes ya just get lucky.
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Posted on Oct 21, 2008

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SOURCE: Panasonic Viera TH-42PV7HS Plasma keeps shutting down

Hi to all, My 42" Panasonic plasma have the same problem. It turned itself off and now red light flashes 7 times, than after short pause 7 times again. And so on. Any ideas what is wrong??

Posted on Oct 23, 2008

gsalmen
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SOURCE: lg tv automatically turn on and off. Power surge

the software in the main control is damaged. call your lg servicer in your area. he might get you a software update

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SOURCE: Plasma TV turns off by itself-won't sty on for

when i turn my 32 inch VIVIO plasma tv on it turns pff by itself. i want to know why this is happening

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SOURCE: HItachi Model 42HDS69 Stuck in Standby

Tv problems?. any warrenty on the set? how old is the set?

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