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Backlight inverter on LG - LG Televison & Video

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What do you want to know? Provide more details; please.
http://electronicshelponline.blogspot.com/

Posted on Dec 06, 2014

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How can I tell if my Lg tv needs the backlight inverter or the LED driver replaced?


You're mixing two different technologies. The inverter is for a different type of backlight than LED.

The inverter produces high voltage and has a coil in the circuit. LEDs are low voltage but require current.
You need to figure out what your TV is fitted with first.
Replacing the easy bit and seeing if that fixes it is one way.

Jul 07, 2016 | LG Televison & Video

1 Answer

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


LED TV Repair Tutorial - Common Symptoms & Solutions ...

? 6:43
https://www.youtube.com/watch?v=8HG7efTMj78
Jan 3, 2014 - Uploaded by ShopJimmy.com
LED TV Repair Review & Overview-Common Problems - Symptoms, Solutions Click Here to BUY TV REPAIR PARTS: ...TVs inputs and outputs, this main board is connected to thebacklight inverter/LED driver via this ribbon cable. ... ofillumination for the screen and the board that drives thatillumination.

LCD TV Repair Tutorial - How to Replace the Backlight ...

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https://www.youtube.com/watch?v=s3r1GZCA0K4
Dec 31, 2012 - Uploaded by ShopJimmy.com
Philips TV Repair Flickering Image On TV Screen Tutorial Guide How to ... Inverter on LCD TV Easy Fix Help Click Here to BUYTV REPAIR PARTS: h... ... How to Replace the Backlight Inverter Board in LG & Philips LCD TVs.Missing: restore ‎illumination

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Jan 27, 2016 | LG Televison & Video

1 Answer

LED Backlights on LG TV?


If audio is OK, the backlight inverter is the part should suspected. 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.

Oct 25, 2015 | LG Televison & Video

1 Answer

Lg 50ln5600 backlight issue


Check whether the back-light start voltage [control voltage] comes to the backlight inverter section of the power board; from the main board. It sounds that that voltage does not come from the main board, after the firmware has been loaded up. If so the main board will have the fault. Contact any service technician.

Aug 03, 2015 | LG Televison & Video

1 Answer

Hello, I have an LG LCD TV Model : 37LC2RR-2L, I can get sound on th tv, the screen is on but no image appears.


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!

Please rate!drewpalmer04_62.jpg

Apr 18, 2011 | LG 37LC2RR 37 in. LCD TV

1 Answer

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

2 Answers

Screen went black...audio still working..Shuts off after 5 seconds..LG 32lcd7d 42" flat screen


Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board.U will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.

Mar 15, 2010 | LG 32LC7D Television

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