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LG LCD tv freezing and affected by power switches, light switches, etc. Have always run it through a surge guard. Problem happens with or without surgeguard. YV almost 3yrs old

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  • 18 Answers

Phone LG and ask them if your set is eligible for a firmware upgrade.

Posted on Dec 09, 2008

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Posted on Jan 02, 2017

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Our LG TV will not power on. No light, no sound, nothing. How can we check the fuse on the power supply? Or could it be the power cord?


Hi Dfhamilton,
Damages due to lightening surge can go to any extent in a tv set. If you can, please open the back cover and check the fuse. Replace with the same rating one if you find it blown. Switch on the set. If it works, enjoy watching. If it blows again, please consult some TV tech.
Good Luck.

Aug 17, 2015 | LG 42LE5400 42-Inch 1080p 120Hz LED LCD...

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Indication Light On, Black Screen, Unresponsive


I happened the same problem and the solution must change the power pack

Jan 25, 2014 | LG M2362D 23 in. LCD TV

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Rca lcd tv power surge lighting


The power supply is a likely place to find what's causing the problem

Jul 11, 2013 | RCA Televison & Video

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Spot of bad weather here, just had a power surge in the house and now our tv (sharp lc-42SB48UT) won't power on. There is no blue or red light on the front and changing outlets/surge protectors doesn't...


90% to 95% ur tv have a dead power supply board only.5% ur tv could have both dead boards the tv power supply board and the main tv Tuner signal board too.The tv power supply board.That the board,where the power a/c cord plug into it.The tv main Tuner signal board,that the board where all the exstented devices and the tv incomming broadcasting signal cable wire plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement first.The tv problems should be fixed.If not than the main tv Tuner signal board is dead too.Must be replaced also.

Apr 24, 2011 | Sharp LC42SB48UT 42 in. LCD TV

1 Answer

Had an electricity power cut during the night. Next morning, tv had no lights on it at all and won't switch on. Checked fuse, power lead etc?


sounds like you have had a brown out or a surge they go strait pass the fuse and fry almost all the electronics in the unit. due to the damage that occurs we do not fix these units we write them off as respect to our customers. some techs fix them but they never last. far to much damage. but there is good news all insurance companys cover surge damage if your not insured and even if you are if you have suffered a surge/ or brownout then your electricity provider must replace the unit damaged. and from now on always use power boards with surge protectors in them they cost about $ 9 and cost far less than a $ 1000 tv

best of luck to you

merry christmas

please remember to rank this advice

Dec 07, 2010 | LG 32LX1D 32 in. LCD Television

1 Answer

Does Turning an LCD TV on and off repeatedly damage it? I have been doing this to mine quite often, and am worried that I am causing damage to it.


There are about 4 main power supplies in the TV, standby 5vdc (always on and running 24/7 the second the TV is plug into the wall outlet), the other 3 are switched on when you hit the power switch on the TV or on the remote, every time you power it on the power supplies will see current surge when it turn on, which can stress the components, not much you can do, if the TV was design correctly to take the current surge into account then it should have no problem, but so far I have not seen really well made TV any more, does not matter the brand, youcan see that at FIXYA with all the problems everyone has with the TV's.
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Jul 18, 2010 | LG 32LC5DC 32 in. LCD HDTV

1 Answer

I have an LG 42lg50 TV that was working fine earlier today, While I was out of the house an Thunderstorm came up and power failed at least twice. I come back home to find my TV not working properly. The...


An electrical pulse from the thunderstorm has affected your TV. (Was it on a surge protector?)

There is a small possibility that it will come back.

Unplug the television and let it sit for an hour or more and then re-plug it.

If you need to get a new TV, also get a good surge protector such as Panamax.

Jun 14, 2010 | LG 42LG50 42 in. LCD HDTV

1 Answer

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

Jul 06, 2009 | LG 47LC7DF 47 in. LCD HDTV

1 Answer

LG 47" LCD TV - 47LC7DF Clicking Noise


I was told that these clicking noises (which happen on my Magnavox LCD too) were due to the "power required" at the internal switch. Seems that the power required to immediately turn on the TV is too much for a standalone household outlet, so it "surges" power in a series to get enough there. Hence, the clicking sounds are actually mini power surges to send more power to the internal circuits to turn the TV on.

If your set is like mine, these noises generally stop after a minute or two, correct?

Dec 13, 2007 | LG 47LC7DF 47 in. LCD HDTV

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