Backlight inverter board for LG TV What is correct part to restore illumination to TV

There isn't one, just like there isn't a muffler belt on your car...lol...Backlight inverter boards are used on LCD TV's with CCFL lamps, you have a LED lit set. If you don't have a picture and the backlights aren't on chances are you have bad backlights. On this set it's been somewhat common for the defective lamps to damage the power board, I would order both. Below is a link for the parts, will run about $100 with shipping and your local sales tax. Changing the strips is time consuming, use extreme care removing and handling the panel, watch some vids on you tube before trying to do it.

Yes it is, this is a LED TV so there isn't an inverter board, they're only used on LCD sets...don't you have backlights but can see an image with a flashlight?

On your set the backlight inverter is part of the power board. here is the service manual for your set.
LG 47LN613 Service Manual Page 27

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.

I would call LG tech support and ask them which of your boards has the circuits normally contained on the inverter board.

You are on the right track.

The most likely problem is the Backlight Inverter. It supplies the power to the LED array which illuminates the screen. If you are brave and also technically able, it can be replaced at home. Here is a video to help. LCD TV Repair Tutorial How to Replace the Backlight Inverter Board in LG...

Backlight inverter board should be checked.

The tv have a long board that called the tv LCD inverter board,this tv LCD inverter board only job are to control and help the all the amount of the tv LCD screen panel backlight brightness for the tv LCD screen panel for light.This long LCD inverter is the causes and the problems.New tv exchange it for another one,not so new take ur tv warrenty repair qickly the tv long LCD inverter board it is the causes an the problems must have to be change.

You're backlight inverter is faulty.

You first need to check your power supply and ensure you have 24v output to the backlight inverter.

If you lack the 24v you will need to replace capacitors in-line to the 24v rail to get power back to your backlight inverter.
Look for these:


If your 24v is OK then you will need a replacement inverter to restore your picture to your tv.



Best of luck!

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The exact model number is necessary to determine the exact parts your TV has. Some models has suffixes in their numbers to indicate they have some differences in their parts. For example, the 42LG30 is different from 42LG30DC, 42LG30-UD and so on. But generally, there are three parts that has a direct connection with the dimming and illumination of the screen. These are the T-CON board or LCD driver, backlight and inverter or ballast. The T-CON board is responsible in driving the LCD panel to produce the appropriate video or image. The inverter or ballast provides power to the backlights to illuminate the screen. If one of these fails, you will not be able to see any image or video on your screen.
The T-CON board is bad when there's a glow on your screen indicating that the backlight is on but there's no video or image. In short, the screen is blank.
If the screen is black, no glow, grab a torch and shine it on your screen. You will be able to see a faint image if the T-CON board is good. This indicates that the backlight is off. Either the inverter/ballast is dead or the backlight itself is busted. But usually it's the inverter/ballast that has failed. You can tell that the backlight is busted if the TV is old enough that the mercury vapor inside the tubes has depleted.
The T-CON board and the inverter or ballast are not serviceable and must be replaced completely if faulty. Replacing these boards can easily be done. Feel free to inform me if you find which of the above is the root of the problem to guide you in the fix.