Vizio GV42L 42 in. LCD Television Logo
Posted on May 01, 2010
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How difficult is it to replace backlight inverter on a LCD TV?

How difficult is it to replace backlight inverter boards on a 42 inch Vizio tv, any soldering required? I took my tv to a local repair guy and come to find out that both inverters on my tv have to be replaced he informed me this would cost around $475.. well I bought this tv for $700 two years ago and don't want to pay that much. I was wondering if this is something that I could do myself? I don't know much about tv repair but form all the videos and forums it looks fairly easy.. any help would be greatly appreciated..

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Chi Chu

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  • Vizio Master 8,457 Answers
  • Posted on May 01, 2010
Chi Chu
Vizio Master
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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.

  • Twinsofangel May 28, 2011

    Where is the inverter located at the bottom or the one on side?

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Related Questions:

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Vizio lcd 42 turns on then backlight turns off

replace the inverter: it works like a floresent lamp ballast to light up your tv
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My 42 inch lcd vizio tv flashes like a stobe lite after a minute of powering it on then goes black what can i do

That sounds like an inverter problem. Check the capacitors on the inverter boards. There will be two on each board. The master inverter will be on the far left side, and the slave will be on the far right side. You will have to remove the metal covers over the inverter boards. Should be 4 small phillips head screws. If the capacitors have bulging tops, replace them.
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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.
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Philips 42PFL7422D/37 42-Inch 1080p LCD HDTV Picture went out but still have sound. Any tips on how to fix it?

If the backlight of the LCD-panel does not function, (no picture) then Master and/or Slave inverter are defective. Inverter boards are screwed to both sides of the LCD display, if they have revision 1.2 boards then they will need replaced with revision 1.3 boards.
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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.

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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.
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Tv doesnt come on right away, when it does the screen flashes raopidly

Tv screen flashes pictures rapidly only few sec.than pictures died.Have sound left only?Yes,than those 2 long boards call the LCD inverter boards are dead.These 2 long LCD inverter boards help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 2 long LCD inverter boards for the replacement.
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I have a 42 inch vizio VW42L and a few months after I bought it sometimes when I go to turn the set on I get sound but no picture. To the point where the backlight of the tv doesnt even turn on. I usually...

Tell Vizio send out the tech.to replace ur Backlight video inverter board,it dying go to be dead sooner or later.Or take the refurbished tv ur tv will have dead video soon.
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Vizio GV42L LCD TV screen black when turn TV on first time

If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

I’m happy to help further over the phone at https://www.6ya.com/expert/dewayne_4a10eab6caecdb92

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