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Vizio model # vx37lhdtv10a has no sound when I use my fire stick in the hdmi2 port, there is a picture but no sound.there is sound when tv is on but not on my vidios. Please help.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: RCA flat panel L42FHD37 When first

You can easily fix this audio problem by downloading a software upgrade for your HDTV. And you don't have to be a rocket scientist or a brain surgeon either ;)

If you need to find the software upgrade:

Go to RCA.com and click on Support, from there you will click technical support. In technical support, click on the link called Software Download. Scroll to the bottom of the page where you will find 2 links. The first link will tell you how to download the software to a Mini Cruzer USB drive (you need at least 15MB of space) and the second link is the software download itself.

Posted on Dec 10, 2008

  • 1 Answer

SOURCE: no picture or sound, light comes on in the front and have to unplug tv to turn it off.

I had this exact problem on my Vizio 47" HDTV. I removed the speakers and all the screws on the back cover. Took the cover off and located the fuses on the largest circuit board. The are in the upper right hand corner of the board. There are 3 of them in a row labeled LF 1.5, LF 3.0 and LF 3.0. The are white in color with copper ends. I took a volt meter and measured continuity across all fuses individually and found the LF 1.5 to be blown. The guy at the electronics store sold me a barrel 1.5A fuse and told me to soldier it across the top of the blown fuse. It took an extra set of hands but the TV works perfectly.

Posted on Jun 23, 2009

  • 8 Answers

SOURCE: No picture on vizio lcd

It's likely not a backlight, but a mainboard. If you are feeling frisky, take the back off and get the model number off the mainboard and check eBay.

Posted on Aug 22, 2009

Angel Petter
  • 114 Answers

SOURCE: Vizio L37HDTV10a, No picture, Sound works fine.

maybe its the Y or X Sustain its depends on your picture

Posted on Feb 10, 2010

  • 19 Answers

SOURCE: my vizio tv,VX37LHDTV10A darkened and shows

This may work for you. My Vizio went black except for the blue channel rectangle in upper right corner; I couldn't change the channels or power off. I called Vizio, was told I needed a hard reset, and this fixed my problem: I unplugged the TV; held down the on button for one minute, then plugged it back in. It works fine now.

Posted on Apr 03, 2010

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Plug the fire TV stick into a HDMI port on the TV. Plug in power for firestick. Change the INPUT to that HDMI port Main firestick screen should appear after 10-20 seconds

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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://electro-medical.blogspot.com/
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.

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Worked fine twice, no response when switching from TV to HDMI2, have to turn TV off and let it cool before trying again, then no response from hand control to menu's


Try swapping the HDMI ports for the streaming stick. If it works well in the other port then the port is probably defective if it happens in both ports then the streaming stick may have to be replaced. If it's new it's probably under warranty.

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I am connecting Yamaha DVD player to the Vizio M420 NV via HDMI. i have a picture but no sound. how do I gain audio when using HDMI?


HDMI has both Audio and Video (High Definition Multimedia Interface) and should carry both. However, I had this problem with a client just the other day and it turned out that the firmware on his TV needed to be up[graded. Different model TV, but I believe you may need to download the latest software/firmware update via your PC and put it on a flash drive and then flash the firmware on your TV to get it to work. Sorry I don't have the specifics; I was stumped and the Time-Warner guy ended up doing it. I hope this at least sends you in the right direction.
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While watching my new Vizio e470va tv, the audio will go off. I have to change the channel to get the audio back? What is causing this?


gets a little better if you switch from HDMI1 port to HDMI2 port on tv. Vizio says try a new HDMI cord which sounds like baloney

Jan 14, 2011 | Televison & Video

1 Answer

My vizio tv,VX37LHDTV10A darkened and shows shadows in the back ground from previous channel. Do i need to replace the back light inverter master or the main unit part?


This may work for you. My Vizio went black except for the blue channel rectangle in upper right corner; I couldn't change the channels or power off. I called Vizio, was told I needed a hard reset, and this fixed my problem: I unplugged the TV; held down the on button for one minute, then plugged it back in. It works fine now.

Mar 30, 2010 | Vizio VX37L Television

1 Answer

No picture on vizio lcd


It's likely not a backlight, but a mainboard. If you are feeling frisky, take the back off and get the model number off the mainboard and check eBay.

Jul 26, 2009 | Vizio P42HD Television

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