Question about Zenith C27V22 27" TV

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Zenith C27V22 27" TV loud humming noise

My TV makes a really high pitched humming noise when we have the TV on. It started right after we subscribed to HD digital cable. When ever the TV is on the TV/AUX setting & we're playing video games or movies through our PS2, there is no hum, but when we're watching regular cable, the hum starts again. If we bump the side of the TV it will go away, but it always comes back. Also, I don't know what kind of difference this makes, but while we watch HDTV channels, it doesn't seem to hum either?? Thanks!!

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Re: Zenith C27V22 27" TV loud humming noise

There is a coil in the set with a magnet glued to it, called the horizontal linearity coil. Sometimes the coil "sings", making a squeeling sound. I have seen this many times, and there really isnt anything actually electrically wrong with the set. To stop the squeeling the coil should be replaced.

Posted on Jun 26, 2007

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My zenith 56" home theater tv I bought has been having a horrible humming noise forever, but I bought it used and thought it was just because it was old. Now the tv makes a very loud humming noise and...

Check and replace all the main filter capacitors at its main power supply regulator section [SMPS] circuit.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

Aug 10, 2014 | Standard (CRT) Televisions

1 Answer

TV making loud buzzing sound

More sets than you might imagine have this kind of problem---I a regular TV it is usually a transformer that is vibrating hard enough to make the sound---the higher pitched sound is just that--a sound.

If this is a direct view(means not a flatscreen and has a Glass Picture tube it will be either the high voltage transformer or one of several smaller transformers.

This can usually be fixed---seen a few so loud the cats in the house run away.

Let me know model number of set for more information.

On chance it has the high voltage transformer I attach a photo of what that looks like.


May 23, 2012 | Zenith Standard (CRT) Televisions

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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.

Mar 17, 2012 | Zenith Standard (CRT) Televisions

1 Answer

My sansui tv makes a loud high pitch noise. I have had it 3 years, it is a a riging noise, and hard to hear the tv shows. what do i do?

ever since for ever, ive always heard a loudish high pitched ring from analog tv's. e.g. i would know a tv was on in another room even if it was muted. ive told other people about it but they dont seem to hear what i hear. so im gonna geuss either

a. analog tv's all make that noise to a verying degree but most people just dont notice it or subconciously cancle it out as normal.

b. its a kind of hyper sensitivity to high pitched noise, in essence, tinitus.

on a final note, its not medical as i always pass my hearing tests. but to answer your question, either buy a digital tv or turn up the volume.

Sep 09, 2010 | Sansui 27" TV

1 Answer

Making a lot of noise

Sounds like a bearing in the cooling Fan

Thanks for using FIXYA

Sep 21, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

RCA 32'' TV making a humming noise

sounds like a shorted horizontal output transistor probably caused by the high voltage transformer or hot. it is most likely fixable but it will be costly.

Aug 19, 2009 | Standard (CRT) Televisions

2 Answers

High pitch buzzing.

Hi there
Let's make ur problem a bit clear. "white lines" how? where?
meaning retrace lines with full raster or a single vertical line?
buzzing sound? without even turning the power switch of the TV to "ON" or when u just plug the power cord?
I'll check for schema, mean while can u tell me where the resistor leads to? is it a fusible resistor? if so , to which area the resistor suppliers power?

Nov 12, 2008 | Zenith C27A24T 27" TV

2 Answers

Weird noise over everything

According to the Samsung website: "The high pitched sound you hear is probably coming from the flyback transformer. The flyback transformer converts the relatively low voltage electricity that comes from the outlet in your home to the high voltage electricity needed to drive the cathode ray tube in your TV. It is not unusual for a flyback transformer to buzz softly when it operates. However, if the sound is loud and high pitched, it probably means the transformer is failing. To eliminate the sound, you will have to get your TV serviced."

Nov 08, 2007 | Samsung SlimFit TX-S2783 TV

1 Answer

No Picture

Rarely picture tube also shows the same symptom. High pitch sound is due to through deflection area LOT power supply is loaded. Compulsary horizontal output transister short. From your statement i think Lot puncture takes place. Change LOT and horizontal output transister and check tv is now working.

Aug 23, 2007 | Zenith A32B86R 32" TV

1 Answer

Occasional 'whistling/whining' from back of TV

I wonder if there is enough air circulating around your equipment?? My DVD recorder makes a sound unless I open the doors on the cabinet that contains all of my equipment. The cable company says it is a fan to cool down the units.

Jan 30, 2007 | Bush WS6671 28" TV

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