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42 inch LG LCD TV turns on says no signal then turns off. Does this several times before staying on. Any ideas

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Check all inputs connections is all I can suggest, if all is ok and all video source inputs do this the TV has a failing circuit board.

Posted on Dec 19, 2016

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Posted on Jan 02, 2017

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Several possibilities but most common seems to be power supply defect or poor connection. Check these resources. Note that other Youtubes that may address the problem are also accessible from the youtube link.
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1 Answer

How do you do a master reset on a 42 inch LG plasma TV?


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1 Answer

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electronics do not like heat and and heater works by rising hot air
in your case that hot air will go straight up into the electronics which will result in problems
a wide shelf under the tv will be a good idea as that will stop excess hot air straight up into the tv

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Call Sharp for warrenty repair.This problem very common in Sharp tv.Picture will come on turn power on/off button few times will work.But still under Wareenty call to Sharp to replaced the main Tuner Signal board.

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1 Answer

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Try what they suggested. The attenuator may block some signal that is causing the difficulty with your set. And it is installed on only the line going to your set and not the main line coming into the house.

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