Question about LG 42LC2D 42 in. LCD HDTV

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Lg426100 no power

Hi i have this tv and it is no powe in it.. i dont know what kind can be the problem? cord ?Fuse? or where to search for the problem

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  • John Selph
    John Selph Apr 14, 2014

    I had a 42" LG that took a progressively longer time to come on until one day when I quit trying after 1 hour. Research indicated that it was a problem with capacitors. Found an online company, IIRC it was, who sold a replacement set of capacitors for under $20. Opened up the TV and found two boards; one logic and one power supply. Removed the power supply board and replaced the capacitors with the ones in the kit. TV is still working perfectly two years after repair. Warning, replacing the components requires soldering ability and the caps have to be installed correctly with proper polarity. Also, the power supply board deals with line level voltages and capacitors maintain an electrical charge even when the device is unplugged, so if you are not experienced working these devices, I recommend that you find someone who is and pay them to replace the caps.



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  • 74,383 Answers

It's an SMPS [Power supply regulator] board problem itself. Contact any service technician. In most cases, this board might have to be replaced as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. Surf the site with patience.

Posted on Apr 14, 2014


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Related Questions:

1 Answer

Why does my fuse bun out

There is a dead short circuit at the main power supply regulator board. Your TV need a through check-up. Contact any service technician. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product by anyone else could result in serious injury or death. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock. Instead, contact the nearest service centre.

Dec 02, 2013 | Philips 42PFL3704D LCD TV

1 Answer


hi,the first thing to check with this kind of problem is the power supply section.this requires opening of the back cover.If you are handy with electronics you can check the voltage present at the power board by using a digital multimeter..

here's the procedure,
Use a philip screw driver to unscrew the cover.once the cover is remove,you can immediately see the power supply board .Powe supply board is where the power cord is connected(make sure to unplug the unit before proceeding)
check the fuses,set the tester to resistance or continuity test.test the fuse you must have a reading of 0000 this means that fuse is good OC means fuse is open.replace the fuse with the same type of amperage it is printed on the fuse...
If the fuse are ok,check for the voltage output of the power board.voltage are as follows,
5 volts DC supply for the mainboard
12volts DC for the audio board
24 volts DC for the screen
when all this voltages are present problem could be on tha mainboard itself and needs a replacement.

If one of the voltages fails then you need to repair the power board check and replace all bulging capacitors and open can also replace the whole powerboard It is available online at
good luck and let me know how it goes..

Jun 06, 2012 | Seiki SC221FS 22 Class LCD HDTV

1 Answer


I would try the power cord first. You can use a cord that works with a computer desk top. It's the same. If the new cord does not fix the set then you are likely to have a blown fuse. You can trace the fuse to the power supply via the power cord. The power supply is inside the set taking the back off. If the fuse is good you will have a bad power supply. Do a google, ebay or search with your model number to get price and availibility. Be sure to match up the numbers of your board with the new one.

Jun 28, 2011 | Sherwood LTA22K04 LCD TV

1 Answer

Hi what kind of the fuse is in this tv cause i oppened the tv and removed the fuse and now i have lost it and dont know what kind of fuse it was! Do you have any idea?

You haven't mentioned anything about your tVs brand name and model number. Anyway; in most TVs the fuse will be a glass cartridge type of 250V 3.5Amps one. OK.

Jun 16, 2011 | Televison & Video

3 Answers

I lost power in my house. I cannot get the TV to power up. Is there a reset button? what do I have to do to get power on the TV? All the other components linked to the TV are working.

Now,there is no power to the tv at all?Yes.Tries tv unplug,replug it back like about and hour later.That the resetting tv back to the factory setting.The tv now should be working again.If tv still have the same result,tv power supply board have problems,that the board,where the power a/c cord plug into it.Check the tv power supply board fuse,because u lost main power to the house.If u lucky,the tv power supply board only have a dead fuse,fuse is near where the power a/c plug,plug into tv to get it power.Fuse can buy it anywhere like Radio Shack like $1.50.After u repalced the fuse,if tv still getting the same result,than sorry ur whole power supply board have problems and it is dead.Tries websites like, to buy a whole refurbish power supply board for the replacement.

Feb 23, 2011 | Samsung LN52A850 52 in. LCD HDTV

1 Answer

Ge spacemaker microwave has no power how do i change the fuse?

First you have to unplug your device. Next you must remove the cover from the micowave. Follow the powe cord to the unit the fuse should be right at the beginning of the powe cord. I hope yhis will help you.

Nov 26, 2008 | Microwave Ovens

3 Answers

UK AV cord adapter 12V 2A for Maxtor 3200 500 GB external hard drive

dear my adaptar is not powe sending
but power isepted

Feb 17, 2008 | Televison & Video

1 Answer

Sony fdt 5bx5

The fuse is easy to find on TV's. unplug it, take the cover off, should be very near where the power cord comes in.
The bad news is it that it is most likely that there is more wrong than just the fuse.
Check the rectifier diodes just past the fuse.
Of course, my advice on TV's over 10 years old is to not waste any money fixing them.

Nov 22, 2007 | PROimage PRO IMAGE 5" BLACK&WHITE TV...

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