Question about LG 42LC2D 42 in. LCD HDTV

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Power supply unit, TV cuts off after 20 seconds

Where can I buy a LG Power Supply Unit for a LCD Flat-Screen TV

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  • Anonymous Mar 26, 2014

    MINE ARE BLOWN

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  • 83 Answers

I would recommend ebay, they usually have lots of parts for lcd tvs

Posted on Jan 25, 2009

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My LG 26LH20 turns itseld off after about 2-3 seconds. TV is a little over 1 yr old. I t happened about 2 months ago and I thought it was the cable. had cable serviced, not the problem. now it's...


Tv turn itself off after 2-3 seconds the tv still audio voices?Yes,than the tv long board that call the LCD inverter board it is dead.Require change the tv long LCD inverter board,this board help the LCD screen panel to have a backlight to produced a picture or 2-3 seconds tv power died completely no power to tv all?Yes,than this problems the tv power supply board it is dying.That the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish long LCD inverter board or the tv power supply board for the replacement.

May 09, 2011 | LG 26LH20 LCD TV

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20" lg LCD backlight turns off after about 5 seconds of use.


First, check the power supply for the backlight. It's usually a 24 volt supply. Look for swollen caps. If that is ok, go to the inverter board and inspect for damage, ohm out the inverter transformers. Last is to test out the lamps seperately with an external inverter. If a lamp goes out this way, it is bad and causing the whole backlight to go out.

Apr 14, 2010 | LG 20LS7DC 20 in. LCD TV

1 Answer

Tv turns on green light blinks three times then TV turns off


Ur power supply board is dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Apr 07, 2010 | LG 42LC2D 42 in. LCD HDTV

2 Answers

The tv does not turn on. Power on lamp remains dark. Power cable checked out ok


Power supply board is dead.Replaced the power supply board will solved this problems.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board.

Feb 18, 2010 | LG 20LS7DC 20 in. LCD TV

1 Answer

The red light flashes and a start up noise comes on for a 1/4 of a second but the unit will not come on right away. Sometimes it comes on in 20 minutes and other times it takes an hour or more.


Ur power supply board is dead.Replaced the power supply board.U will get power back.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board to replaced.

Feb 15, 2010 | Samsung LN40A530 40 in. LCD TV

1 Answer

It turns off by itself and when i try to turn it back on it comes on but no picture. Also the green power light blinks about 20 times before this no picture but on screen comes on.


there is something loosing up in your unit....maybe it is on the power supply board or in the backlight board section..in the power supply check a defective capacitor.....or if you dont you can bring it to a service of LG

Nov 18, 2009 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Samsung lcd tv


the problem is the internal power supply module has gone bad the first sign is usually the pip if included stops working... well open your lcd monitor try not to damage screen for those who have carpet you may want to use glove to keep your self grounded from cause any other damage to components the boards are usually sperate unit in the new models unplug the powersupply unit

(you can tell because the outlet that the cord connects to will be locate on this board)

once remove locate part number and call manufacture to order part another method to by pass manufacture take unit to your local tv shop it has to be a good one because most only buy new parts but ask them to test and replace bad part of power supply should be faster then manufacture send replacement part

no manufacturer want you to fix they want you to buy new units again

Jun 12, 2008 | Televison & Video

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