Question about Sanyo AVM-3659S 36" TV

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My tv makes a loud buzzing sound even when the volume is all the way down or it is mute. why?

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Jupitor3433, Unit has problem with internal ac to dc power supply that a technician will need to investigate and repair. 12fixlouie

Posted on Apr 27, 2010

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What may cause a high pitch hum.even when muted or volume turned down?


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1 Answer

TV buzzing


Check and replace damaged component/s at its horizontal output circuit. Do you know to recognize this section circuit in your TV?

Apr 29, 2013 | Televison & Video

1 Answer

I have a 42 inch Hitachi plasma tv that is making a very loud static noice coming from the internal speakers. It stays at a contstant very loud volume unless I completly mute the tv or turn the volum


Based on what you have tried if a buzz or loud static via the speakers you have something wrong in the audio output circuit of the set--problem here is that circuit may be part of the Main board that processes all signal---a look inside---following the speaker leads back would lead you to that board.

A simple thing to do to narrow it a little (you may have done this) is with sound all the way off put your ear to the internal speaker--hear anything at all like a deep hum?

Depending on age of set and cost of the board likely bad it may or may not be a do it yourself repair.

SD TECH

Apr 26, 2012 | Hitachi P42H401 42 in. Plasma HDTV

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Loud buzzing noise on vizio tv


It sound like you may have sound processor problem which is part of the main board, I would also look at the 12vdc from power supply to make sure it is clean DC.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=l37hdtv10a

http://en.wikipedia.org/wiki/Capacitor_plague

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LOUD BUZZING/HUMMING SOUND- CAN HEAR OVER AUDIO


have someone check speaker ground to the TV chassis. Your speakers are picking up reverb from the Video Signal.

Aug 19, 2009 | Vizio L37 Television

1 Answer

I have a tv (don't remember the make) the volume says it's on 0 but it sounds like it's all the way up. not even the mute button works. i unplugged it and it still stays loud when the screen says it's at...


Not sure whats wrong, maybe a software problem.
I wouldnttry fix it, just adapt, try hooking up a hifi to a decoder or somnething and use that sound, the only irritating thing would be the buzz of the tv volume.

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1 Answer

Buzzing/humming sound from rear of TV unaffected by volume settin


Hi.

I think you have problem with the main digital PWB

You need change that part.

Nov 18, 2008 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

Buzzing after 1 hour


Is the buzzing coming from the back of the TV, staying loud even when the volume is turned all the way down, or is it coming from the speakers?

Sep 04, 2007 | Mitsubishi CK-35306* TV

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