Question about Vizio L30WGU 30 in. HD-Ready LCD Television

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Picture but no sound on my Vizio L37 Flat Screen

I was watching y Vizio L37 when the sound went out. I thought it might be because the home theater surround sound system had a problem but I can not even get sound through the TV when I disconnect the surround sound system.

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  • ericmc600 Jan 15, 2009

    I have the same issue but my surround sound still working because I have sound coming straight from the Dish receiver to surround Sound unit. No sound out of tv.

  • Anonymous Mar 17, 2009

    I have a 47 in Vizio LCD flat screen 1080p and had it only 3 days.before the sound went out. Great picture but no sound at all.

  • Anonymous Mar 25, 2014

    I have a home theater consist of subwoofer two small spires & sound bar they are pair but no sound at all please help me thank

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I have a 50 in vizio and the sound just went out. the picture still works but no sound anyone have any ideas on how much to repair it?

Posted on Oct 11, 2009

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SOURCE: Picture but no sound on my Vizio L37 Flat Screen

I had the same thing just happen and I used the following instructions from the Vizio Website for "humming sound" on tv and it worked. My sound is now working!!!!

1- Power off TV

2- Unplug TV from outlet

3- Press and hold in the power button on the TV for 30 seconds (while it is unplugged from the wall)

4- Release the power button

5- Plug in the TV into a different outlet

6- Power the TV back on.

Reset the TV settings.

Posted on Dec 15, 2010

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1 Answer

I have a Vizio L37. When I turn on the TV it works perfectly after about 3 minutes the screen goes to green (no picture). However I still have the sound.


My first guess would be your t-con board. The t-con board is the one that transfers teh picture from your signal board to your screen. My second guess would be the siganl board is bad.

You can get parts at www.interliquidparts.com

Nov 29, 2011 | Vizio L37 Television

1 Answer

While watching an HD program live or recorded when paused picture goes dark after 10 seconds then comes back on after 30 seconds. Does not happen when watching SD programs. TV is new.


sounds like its simply just your tv's auto screen saver or another program along those lines its helps prevent burn in and other issues caused by leaving your tv with still images ok :) dont fret

Jan 23, 2011 | Vizio L37 Television

1 Answer

I have 42 vizio hd lcd flat t.v. and when you turn it on the picture go's out and yet you can hear sound. I have to turn it off then on again all day. just watch t.v. im tired of it


Sounds like a backlight problem. Next time the picture goes out, try using a strong light next to the screen. Do you see a faint image? That means your lamps have turned off. May be bad power supply to them, an inverter board problem or a bad lamp. Unless you are a tech, it's a repair shop issue.

Mar 10, 2010 | Vizio L37 Television

1 Answer

Main Picture has gone out


The first step would be to switch the inputs and see what you get. If that does not work then let me know and I will help with the troubleshooting.

Jun 21, 2009 | Vizio L37 Television

2 Answers

Picture but no sound on my Vizio L37 Flat Screen


I had the same thing just happen and I used the following instructions from the Vizio Website for "humming sound" on tv and it worked. My sound is now working!!!!

1- Power off TV

2- Unplug TV from outlet

3- Press and hold in the power button on the TV for 30 seconds (while it is unplugged from the wall)

4- Release the power button

5- Plug in the TV into a different outlet

6- Power the TV back on.

Reset the TV settings.

Jan 29, 2009 | Vizio GV42L 42 in. LCD Television

1 Answer

Vizio TV (L37) will power up but no picture


The backlight is powered by its own supply (although it may receive input from the main supply) and it sounds like the main supply or one of its outputs has failed disabling the video and sound processing.  

Dec 24, 2008 | Vizio L37 Television

1 Answer

Vizio 37 inch lcd


I haven't had any problems with my VIZIO, but I have had several really good experiences with their service people, so I would recommend calling them up. They have great product guaranty and if for whatever reason you got a defective item I'm sure they'll help you out.

Oct 24, 2008 | Vizio L37 Television

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