Question about LG 47LE5400 47-Inch 1080p 120Hz LED LCD HDTV

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No backlight no sound no picture lg 47le5400

Replaced power board no luck

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  • LG Master
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It needs proper trouble shooting, just let me know if you will be the one to do the job.so i can give you other step to trouble shot the tv since it needs proper tools and device then make sure you have the knowledge in electronic repair.

Posted on Oct 26, 2012

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Posted on Jan 02, 2017

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SOURCE: lg 47le5400 size picture to fit the screen

You can fit the picture to the tv screen by clicking the buttons on the receiver. Change the setting to 1080i from 720i. It is going to work like that.

Posted on Feb 01, 2011

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SOURCE: LG 42PX4MVH PLASMA TV - Sound but no picture.

I have the same issue with my LG 42PC3DVA and I narrowed it down to the Y SUS board. After a little research there are a few items that are prone to go. The ceramic fuses (as you found), sometimes the capacitors on the Y SUS, Z SUS, and power supply go along with them You can tell because thy will be bulged at the top instead of flat. I replaced a few of my capacitors - they are only $0.89 each so it was MUCH cheaper than a board.

The other thing that is common on the Y SUS in particular are the FETs (also called MOSFET). They can be replaced if you are good with a soldering gun but they are static sensitive so be grounded. They are also a bit tricky to test so you may want to do some research on how to determine if this is the issue... or you can just replace the whole board.

Posted on Oct 28, 2009

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1 Answer

LG tv black screen with sound


Hi Tommy,
This is a common problem with LG LEDs. It is a backlight failure. Either the backlights are not receiving the power to drive them or some of the LEDs in the backlight array have failed.
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How to fix an lg 47LE5400 tv power lights come on but no picture


If it's a led tv and if you have sound and, also, if you can see the picture with a flashlight very near on the screen in the dark, that means your backlight or your inverter circuit that control the backlight are defect. Good luck,


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I have an LG 50 l e n 5100 TV I have sound but no picture I have already replaced the power source board thinking it was the inverter but no change what now


Hi Hugh,
When sound is there and picture is missing, it is mostly the backlights are not working. For this you have to replace the inverter board which makes necessary voltage for the backlights. If you are handy with basic electronic servicing, a voltage check on the boards is always helpful. Good Luck.

May 26, 2015 | LG Televison & Video

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No picture but have sound.


Hi Celeste,
I appreciate your efforts so far.You have sound but no picture. Can you see the backlights? Or is there the on screen LG logo? If the logo is not there it means the backlights in your TV are not working. Mostly it is the inverter board which makes necessary power for the back lights goes bad. Good LUCK.

May 26, 2015 | LG Televison & Video

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Lg 47le5400 tv has no picture or sound


Contact any service technician. To get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
25402078-2xmtrvvcpf0td3c35znebqyj-5-0.jpg

Feb 05, 2015 | LG 47LE5400 47 in. TV

1 Answer

My LG 47le5400 makes a long beeping sound on startup then the LG logo on the bottom lights up and the power button stays lit but no picture or sound. Is this a power board or main board issue?


It is a main board issue. Damaged IC. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magzine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

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