Question about LG 47LN5400 47" LED TV 1920x1080, 120 Hz. HDTV

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LG 47LN5400 FLAT SCREEN SOUND BUT NO PICTURE, BUT YOU CAN SEE SHADOWS OF PIC IN THE BACKGRND. MAIN BOARD REPLACMENT? CAN I DO IT MYSELF

WHERE DO I GET A MAIN REPLACEMENT BOARD?

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Paul Williams

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Yes you can do-it-yourself its sounds like the Back light led's in the back of the flat screen are not getting power. it could be 1 of 2 boards inside the chassis of the TV look online and put that model number in when you look.

Posted on Mar 07, 2019

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emissionwiz

Marvin

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SOURCE: What keeps burning out the inverter board on my LG flat screen t.v. model #LG-47LN5400? Just replaced 1 week ago and it's doing the same thing. getting power and sound but no picture. Thank You.

Then you have another board that is shorted or causing an overvoltage condition that is destroying the new PCB

Posted on Oct 27, 2016

Testimonial: "I'm inclined to think it's the main power board but I'm certainly no expert. What do you think?..Thanks so much!"

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Vizio e550i-b2 55" tv not working ... replaced main board and stil not working, what next ?


so the repair quote was too high
well before you fix it your costs will exceed that quote
read forums on the brand and you will see that the brand is of poor quality and you will be running around in circles throwing good cash at a bad unit

Nov 24, 2017 | Vizio Televison & Video

2 Answers

Vizio tv 37" picture started to get darker


Back - light problem. 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.

Jan 11, 2017 | Vizio Televison & Video

1 Answer

What is the test for a flashing backlight?


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.

Oct 18, 2016 | Televison & Video

1 Answer

Replacement main board


A Very difficult to get assembly at open electronic spare part market. Contact the authorized service center for Vizio.
http://electronicshelponline.blogspot.com/

Aug 01, 2016 | Vizio SV421XVT 42 in. LCD TV

1 Answer

How do i repair my vizio E7011-A3


Back - light problem. 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.

May 28, 2016 | Vizio Televison & Video

1 Answer

Hi, I have sound but no video. Do I need main board replacement part eax61746403 or video board ebu60852909?


Back - light problem. 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.

May 12, 2016 | LG 46LD550 46-Inch 1080p 120 Hz LCD Hdtv...

1 Answer

Vizio M470VSE replaced main board now screen has 4 of the same images on it


After main board replacement, a firmware update might be necessary. I don't know whether you've don it or not. If not, do it.
Gopakumar Gopalan Google

May 20, 2014 | Vizio Televison & Video

1 Answer

Main board is shot.


This will have its own main board, easily replaced, what you need to do is take the board out and get the part number of it then Google it or Ebay for a replacement.
Hope this helps

Mar 06, 2010 | Televison & Video

1 Answer

A Samsung Tv model #HLN5065W


Model # HLN5065W Digital Main Assembly Board should be part # BP94-00385A. Here's a link to a major Samsung distributor:

Samsung HLN5065W Replacement Part Digital Main Assembly Board

***There's also a manufaturer's notice: If you replace the digital main board (BP94-00385A) you must replace the main analog board (BP94-00434A) per mfg bulletin# ASC20040728004.***

Samsung HLN5065W Replacement Part Main Analog Board

Dec 30, 2008 | Samsung HLN5065W 50" Rear Projection...

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