Question about Vizio VO47L 47 in. LCD TV

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Vizio speakers make a buzzing noise

Our Vizio speakers make noise the entire time the t.v. is on. What can we do to fix this problem?

VIZIO VX37L backgroud buzzing noise constatly (audio) increasing as volumne increasing. My knowlege is limited but tried looking at audo conttol setting,(nothing in which I could relate) also I found under advance picture adjustment DNS (noise reduction). it didn't seem to realate to aduio. If audio is fine and new speakers would cure all, I'd be a player. I have a Vizio 47. It also has buzzing noises. Both speakers. Have cable, but no HD cable box --- no box at all just direct hook up to wall.  I have an internet modem with a splitter for the cable but no direct connection to internet and TV.  Buzzing noise stays pretty much the same in volume even when you increase the volume.  I can't find anything in the audio set up to help out.  But seems to definitely be speakers as I turn them off on the audio set up the noise disappears. Of course then all sound turns off.

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  • siffony Feb 07, 2009

    i have the same problem but different tv.

  • Anonymous Feb 16, 2009

    Same issue different TV, except my buzzing subsides after about 10 minutes.

  • Anonymous Mar 14, 2009

    i just got my tv the other day and iv been going crazy to try to figure why its doing that....

  • Anonymous Mar 16, 2009

    I just got mine yesterday and the speakers are doing the exact same thing. Its a buzzing noise but when the volumes off the buzz is off. Does this happen often.

  • sky2walker Apr 05, 2009

    my problem started jsut after adding a HDTV dvd box. The volume is very low, hed to turn it up , way up in order to hear conversations. Then a buzzing noise started. Today, I have a clicking noise. The tv is only a few months old!

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  • 56 Answers

The audio board on your 47" Vizio has gone bad. Replace that board will fix the problem.

Posted on Feb 17, 2009

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SOURCE: Vizio speakers make a buzzing noise

It's not the speakers. I usually hear of this problem when hooked up to an HD cable box. You can adjust the volume on the cable box and also on the TV. I'll bet you don't have this problem when watching a DVD.

If the problem is what I think it is, your HD Cable box is set at a really low volume while your TV is set to a rather high volume. Try setting the TV volume to around one-third, then set the volume on the cable box until it's as loud as you'd ever want to hear it. With the TV at such a high volume, you're actually amplifying any stray electronic signals that the wires might be picking up, and the above solution will fix that.

Good Luck.

Posted on Apr 09, 2008

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Posted on Jan 02, 2017

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