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How do I replace a backlight board on a Vizio 42" tv

I need to replace the backlight

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  • Vizio Master
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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Dec 09, 2014

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Posted on Jan 02, 2017

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ginko
  • 19396 Answers

SOURCE: 42" Vizio - no picture no sound

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

Posted on May 04, 2009

iseeu2
  • 4 Answers

SOURCE: vizio vw42l, the vizio light turns from ornage to

Does LCD screen backlight come on? If so proceed....
USE:CAUTION WHEN DOING THIS....
Try this if repairing yourself...find power supply, small board with no cover over it...check voltages on output pins/plug/connectors (white plugs) three in a row...
1 Plug has 24Volt supply..1 has 12Volt supply and 1 has 5Volt supply when read to ground (screw that holds board in) if you have these voltages it's a safe bet it's the main control board...I just replaced mine and it fixed a problem like yours.

Posted on Sep 02, 2009

  • 12 Answers

SOURCE: No Picture on Vizio 42 in. Plasma

There is no backlight on plasma TVs. If you have a black screen than most likely one of your sustain boards are gone. Board can be purchased on line at about $100. If your TV has no signs of life it's most likely the power board. Any way it would not be that expensive to fix if you are able to take the TV apart and swap the boards. But I need to say that I recommend to do it ONLY if you are qualified enough. Otherwise ask your local TV repair company to service your TV.

Posted on Sep 06, 2009

nicknovikov
  • 100 Answers

SOURCE: how much do amain board cost on a 42 inch vizio tv

shopjimmy.com.check this site.

Posted on Oct 05, 2009

milkburp
  • 416 Answers

SOURCE: Vizio 42 in TV LCD HDTV white line across to of

That white line (usually jagged) is actuallly part of the transmitted picture. However, you are not intended to see it because it is located in what is known as the 5% overscan area. Your TVs today are more than just cable ready... they are a versital, technology filled multimedia display. You can see that line because the screen size or wide mode you are using is intended for 1080p/24 signals. You have 0% overscan with this screen size setting. This allows you to see ALL of the picture, including portions of the picture the broadcaster did not intend for you to see. You can change your screen size using the Wide feature in the Setup menu. See pg.62 of your user manual for details and descriptions of the various wide modes.

Posted on Mar 14, 2010

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1 Answer

Have Vizio TV, powers on, but blank screen, no backlight


Its probably damaged the board that powers the backlight in the surge. Repairs on this depending on the size of the TV might out way the cost of replacement. I

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Vizio M420nv LCD TV Black Screen


lightning can do extensive damage to electronics equipment especially flat panel TV's. I would really recommend a professional diagnosis instead of board swapping. You could have several boards that are damaged!

Feb 13, 2013 | Vizio m420nv 42 in. LCD HDTV

1 Answer

Where do I purchase a backlight for my vizio 42in tv? And the price?


you cant the backlights are an integral part of the LCD panel. The backlight inverters Boards) can be replaced but the actual backlights are inside the LCD panel assembly.

Oct 29, 2011 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

ImagypsyRe:Vizio 42" LCD TV Screen randomly


You should definitely return it. It is most likely due to backlight malfunction and or backlight invereter malfunction. Either ways you should return it and demand for a replacement if its under warranty.

May 30, 2011 | Vizio 42 in. LCD TV

1 Answer

The backlight on my new Vizio tv dosen't light up and i can't get the clearity I had when Ifirst set it up is there a way I can get the back light to go back on.


If you look inside the television through the vents and see that the backlight is not working, the problem could be a broken backlight inverter board. The backlight inverter board is used to project video onto the screen. If this is your issue, the board will need to be replaced.

Dec 23, 2010 | Vizio 42 in. LCD TV

1 Answer

I had my Vizio VO42L fixed last year because the power wasn't working. No backlight... it wont turn on at all. This time it turn and has sound but no picture. What part(s) do i need to replace?


Tv turn on now,have a flashes a picture only a few sec.than dies and have sound left only?Yes,than those 2 long boards to the left and to the right call the LCD inverter boards are dead.These 2 long LCD inverter boards,job are to help the LCD screen panel to have a backlight to produce a pictrue.Tries websites like Shopjimmy.com.Ebay.com to buy those refurbishes 2 long LCD inverter boards for the replacement.

Dec 08, 2010 | Vizio VO42L 42 in. LCD TV

1 Answer

How difficult is it to replace backlight inverter on a LCD TV?


Replacing LCD inverter board is very easy.Does not involved in any soldering.It a long board in shape.Just take ur tv aparts,use a Philip screw driver take out 6 Philip screws each board and connections.Do the reverse to install the LCD inverter boards.Tries Websites like Shopjimmy.com,Ebay.com to buy refurbish LCD inverter boards.

May 01, 2010 | Vizio GV42L 42 in. LCD Television

2 Answers

No Picture on Vizio 42 in. Plasma


There is no backlight on plasma TVs. If you have a black screen than most likely one of your sustain boards are gone. Board can be purchased on line at about $100. If your TV has no signs of life it's most likely the power board. Any way it would not be that expensive to fix if you are able to take the TV apart and swap the boards. But I need to say that I recommend to do it ONLY if you are qualified enough. Otherwise ask your local TV repair company to service your TV.

Sep 06, 2009 | Vizio P42HD Television

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