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LG TV power light flashes red but then doesn't turn on

Ask a question matt - Latest answer on Sep 15, 2016 11:39AM
Hello,
Hi have a 42" LG TV model numbe 42LG7000
When I go to turn it on the power light flashes red but then doesn't turn on. Took the back off and got rid of all the dust in there. Looked at it from the back whilst trying to turn it on and the back lift comes on for 2 seconds then dimms. I've tried unplugging it for half hour still doesn't help. Please someone help me its driving me mad!
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As this is an older thread I dont mind having a shot - it seems people more knowledgable about this are not in this week.

My guess is - and its only a guess - is that it cannot see an input. Is it connected to a computer, DVD or anything like that? Perhaps the input settings are wrong - or it might be out of tune. Do you get a display when you press the [Menu] button on the remote?
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I know this is an old, unanswered thread, but any chance you figured this out? Having the exact same issue and also going mad...!
buttbreath- Apr 29, 2016 11:59AM
Yes,
this is a known problem. You need a new PowerBoard(PSU). The capacitators have blown on the power supply.
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How much did the repair cost you?
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