Question about V, Inc. VIZIO RP56 Rear Projection Television

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Humming sound vizio

Humming on new vizio 32" sound

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  • Tony Nguyen May 11, 2010

    where is the humming coming from? what model is it?

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99 percent of the time the humming can only come from a defective powerboard, before it dies, you should consult your warranty. Otherwise you can order the parts and replace yourself.

Posted on Jul 19, 2009

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I have a vizio 47 in tv. It was originally a preowned model. The picture and sound will work for a little while than randomly the picture will turn to all weird neon colors and bars and the sound will go...


If you feel comfortable opening the TV and know where not to touch, it seems reasonable to replace the board. On the other hand the new HDTVs are really coming down in price. Tough call. In my case my 32" WEGA failed (also a board) . I replaced it with a 32" LCD set.

Dec 11, 2014 | Vizio VO47L 47 in. LCD TV

1 Answer

I have a 32 inch vizio with internet apps. every time i turn off the tv a humming/buzzing noise that won't go away unless i unplug the power adapter! When it's on it works just fine.


Tv power supply board have input and output high voltages issues.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Apr 27, 2011 | Vizio L32 32 in. LCD HDTV

1 Answer

Vizio L32 Issue: Vizio replaced our 9 month old 32" last week due to a 'failed' repair for an annoying humming. The new tv has the same annoying humming. What should I do? I really don't want another one...


It is still under warranty then you could ask for your money back as replacing it has made no difference.

You will have to search the internet for more advice on this.

Regards - Anthony

Feb 08, 2010 | Vizio L32 32 in. LCD HDTV

2 Answers

I have a new tv, a Vizio model VL370M and there is a humming noise when I am using standard definition. It is present also when I use a DVD player. It is not the cable box. A Vizio repair man put in two...


If you can handle it then check the 12VDC supply filtration. I mean to say that you have to confirm that the 12VDC is coming with stability and no noise inside it. The filtration work is being performed by the capacitors in the circuitry. Check the capacitor condition in main board please. If it is plague (bad capacitor) then try by replacing it. The sound can be mainly heard through speakers and it most probably caused by sound processing area presents in main board. This kind of thing can be eliminated by changing the main board.

good luck

Feb 02, 2010 | Vizio L37 Television

2 Answers

WORKED FINE WHEN TURNED OFF, THEN NO SOUND WHEN TURNED ON


1. I would first make sure that correct "INPUT" setting is registered.
2. Try a different input source such as VCR, DVD or CD.
3. Connect a pair of audio RCA cable to all the VIZIO set's audio inputs one at a time and touch the center tip while the set is powered ON and the input is set to the corresponding seting. If audio circuit is OK you should hear a hum with at least one of the input settings..
4. If still no audio, then it maybe the audio circuit board needs to be checked.

May 15, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

My lcd tv makes a humming noise


My 37 inch vizio did the same thing. go to your menu screen on the tv and go sound. My tv has an option to turn speakers on/off. Once I turned my speakers off and the back on again everything worked great. hope I helped! if I did please let me know! youtube.com/xniax1

Mar 21, 2009 | Vizio VW37L 37 in. LCD HDTV

2 Answers

Vizio 42 LCD turns on but no picture or sound


32 in vizio turns on but but no picture only blue screen and cant turn channels up or down

Mar 11, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Green shadow or static lines(dots) all over screen


Problem sounds like ignition noise. Depending on the condition of applainces and electrical distribtion box (Fused/circuit breakers) on the premises. Could also be entering through outside source. The best way to find out if this actually causing your problem is to take a portable radio and tune around 550mhz on the AM band. If you hear a buzz or crackle tune radio to the loudest hum or buzz, then walk around aiming towards the more signal or louder it gets until you find the source. Hope this helps.

Jan 11, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Sound Problems with 32" Vizio HDTV


our brand new Vizio 32 HDTV has poor sound quality, so irritating in it's flat muffled character that I can't watch it. My electrical engineer husband as attempted to change it (he does not hear the difference between the Vizio and our two Sony...there is a BIG difference) by turning off the surround sound. But to me nothing has changed. What do you think? it sounds a little bit like an old radio or a broadcast from inside a closet. Hmmm

Jan 08, 2009 | Vizio L32 32 in. LCD HDTV

2 Answers

Buzzing sound on Vizio Plasma TV


likely supply failure or shorted pannel driver. u should be able to unplug the pannel boards from the power supply. if the buzzing stops than its the pannel boards otherwise its supply.

Dec 05, 2008 | Televison & Video

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