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Lg lcd tv screen went black after some snow on the screen but there was still sound, then hour later turned it back on tried flashlight test and saw channel # with light then the picture came back

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Dec 21, 2016

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Posted on Jan 02, 2017

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I have an LG 47LN522-UB LED TV that stopped working after three years and need help diagnosing a problem with it.


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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It should be under warranty. do not panic. Call the manufacturer as soon as possible.

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MY LG 42" LCD TV


Tries tv unplug,replug it back like about an hour later for the tv resetting itself back to the factory setting.Tries again,tv should be working.If still getting no power at all than the tv Tuner board is dead,because pictures freezing and dies completely is the causes so it is not power supply board problems.The tv Tuner signal board is the causes,that the board where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

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1 Answer

LG 32L4DS this is my TV... my wife was watching and the screen went black no picture no sound any suggestions or is it a recyclable?????


Tv now turn on,tv have power LED light indicator flashes?Tries tv unplug,replug it back like an hour later,the tv now,should resetting itself back to the factory setting.The tv should work now.Not,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

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