Question about Apex Digital AT2008S 20" TV

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Ringing Noise My TV makes a loud rining noise - it makes it even when I mute the sound. The noise comes and goes but is beginning to be more frequent and louder.

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  • godo Nov 12, 2007

    TV rings even when sound is off

  • Anonymous Dec 02, 2007

    TV has a ring noise in the back ground all the time, even with mute on. Seems to increase the longer it's on.

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2 Answers

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  • 3,130 Answers

That ringing noise sounds like a deflection yolk or an on board coil is starting to sing as we call it. theres not alot you can do unless you find the source as the deflection yolf in the past we used to stick popcycle sticks into the yolk while in place and hot clue them to get rid of singing yolks.. But its onlty a temp fix. the best way to fix it is too replace the singing yolk. Now if its a coil it could be a loose winding on the coil and hot clueing the coil on the outside sometimes fixes thast too but in the end the best way was to replace the coil that makes noise.

Posted on Mar 26, 2006

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What you are hearing is probably the Horizontal oscillator @ 15,750 Hz. Most common offender of this is the High Voltage xformer , sometimes you can wedge something in it to make ot stop. It could also be the yoke as in the previouse reply. 25,000 volts there, be very carefull. Hope this helps.

Posted on Dec 01, 2007

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Lg tv humming noise when tv is on


The humming noise is most likely coming from the power supply.

If the unit is worth the repair cost ( Over $100.00 ) you should have it repaired.

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I have a Phillips Fla screen and a few days ago it started making this loud buzzing/hissing sound that somewhat goes away once the TV is on but comes back with a vengeance when we turn the TV back on i...


Most likely if a buzzing or similar sound that is there even with set off--you have a noise coming from a transformer in the standby power supply which is running all the time if the set is plugged in----

Someone would have to open set and listen for it---either a part, a board, or hot glue would have to be used to mute the vibration that is making the sound----one way we locate is with cover off probe with a plastic tool to see where it is.


If you are not able to do this have a tech or a shop "look" for it.

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Tv making loud buzzing noise


A common cause are failure of decopling capacitors in the audio section, and or the circuit board power distribution that feeds the audio board. Most of the capacitors are surface mount components. The standard fix is to start by changing the circuit boards that have the defective parts.

If the set is under warranty, call for warranty service. Out of warranty service is expensive for these TV sets.

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I have an old zenith sentry tv, and up to know has never had any problems. Afew days ago it started making a very loud noise as soon as I turned it on. It sounds like it's coming from the right


someone needs to open it but it sounds like a part arcing which was not uncommon in those sets====you would have to decide if you want to attempt to have it repaired----some shops will not repair a set that old and unless you really want it done---I would replace it.

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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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My lcd tv makes a humming noise


Try removing all cables going to the TV except the power cord. Power on the TV and press mute. If you have any unwanted noise, then you have a defective TV and since it is new, you should get an exchange. If there is no noise with the A/V cables removed, then you might have hooked the source (cable box/DVD Player) into the wrong inputs of the TV.

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Noise coming from power supply


When we turn our TV the humming and buzzing begins! We cn mute it and it goes away and then it when we turn the sound back on the sound is back! How can we fix this?

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Could be hard drive, bad speakers, or even a bad sound chip on the motherboard. what kind of noise exactly is it??

Does it make the noise while playing music or anything else??

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