Question about RCA F27628 27" TV

3 Answers

Television sound my tv works fine..... but there is this annoying buzzing sound that i would like to get rid of but dont know how...... some help would be nice

Posted by jerome ratell on

  • 2 more comments 
  • spek Nov 03, 2007

    tv works fine but like the other guy there is this annoying buzzing soud asif a fan in the tv is running,

    It seems to get better sometmes when the TV is warmed up. What can I do about it?

  • byldin Nov 02, 2008

    I have a buzzing noise that sounds like a bad fan. The speed of the buzzing alters some when switching between HD and non-HD channels. Could this be the cooling fan behind the lamp?

  • jillannes Nov 28, 2008

    Same exact problem.  Buzzing sound that seems to go away once the TV has been on for a while.  It is loudest when you first turn on the TV.   Any ideas?   

  • krobinsonfl Jan 04, 2009

    I have this same buzzing noise when TV is turned on. Could someone tell us what the problem could be? [email protected]



3 Answers


  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

If you have a converter box hooked up to the tv as well turn the volume down on both devices and bring the volume on the tv up to mid range, then increase the volume on the is overriding the other

Posted on Feb 03, 2007


yoav kleinfeld

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 513 Answers

I hope this will help you, but next time you really should write in more detail. Does the buzzing coincide with different brightness levels on the screen? i.e, the brighter the buzzier? if so read on. please note - If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages. Its going to be some inductor or coil that's vibrating with the AC signal going through it. The more the current (i.e. brighter image) the more the magnetic field therefore the movement and louder the buzz. Many components of this type have some sort of adhesive applied to them to damp this out. Maybe its come loose in your set? I wouldn't advocate prodding around inside the set, but an engineer might be able to stick an insulated screwdriver around and find out what's causing it. (But I bet as soon as he takes the cover off - it'll stop..... then start up again as he's driving down the road......) Good luck

Posted on Mar 27, 2006



  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I thought my sony trinitron was going out, this buzzing sound would come and go and the picture would distort at times, at other times it seemed to go away but I decided it was going out as it's over 5 years old ... my husband had a look at it and somehow the tv channel had been changed from channel 3 to channel 8 (we have cable) and the wrong channel was causing the interference. Once he put it back on channel 3, the cable worked fine, no more buzzing, no picture distortion! I was ready to throw it in the junk pile!! hope this solves some of your tv buzzing problems. when I turned on the tv my cable channel came up so I never thought of the channel having been changed but my hubby said it was a similar channel but had alot of interference because it was not the proper channel for the tv to be on to have cable come through clearly.

Posted on Sep 15, 2009

Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

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 Televison & Video

1 Answer

My 32" Philips LCD TV makes a annoying buzzing

The main cause off buzzing from these sets is the transformers on the psu. This can be solved by sealing the transformers with a sealant spray.

Jan 21, 2011 | Philips 32PF5531D 32 in. LCD Television

1 Answer

Today I bought SONY KDL37EX402 LCD TV. Immediately when I turned it for the first time I noticed an unpleasant sound like a “buzzzzzz” from the back of the TV. As I worked it for more then 5 hours I...

It can be from the power supply is not able the supply enough power due to failing components in the power supply module such as DC filter caps or loose transformer core is vibrating or from the backlight inverter transformers. You will have to take a close listen to find out exactly where the noise is generated from first.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:

Failed TV and Monitors:
Capacitors kit: he can make you a set of caps.

Oct 23, 2010 | Sony BRAVIA KLV-37S310A LCD TV

1 Answer

Today I bought SONY KDL37EX402 LCD TV. Immediately when I turned it for the first time I noticed an unpleasant sound like a ?buzzzzzz? from the back of the TV. As I worked it for more then 5 hours I...

I'm pretty sure that the buzzing sound is a not normal thing for an LCD TV. I sell Flat Panels during my spare time and it should be as quiet as a CRT types. It is more likely a defect and you should return it ASAP.
Hope this helps.

Oct 23, 2010 | Televison & Video

2 Answers

Hi have a techwood tv 32722hd no sound or a buzzing sound.can you help thanks

Same problem here, only white noise... have contacted TV repair people and will let you know what the outcome is!

Mar 30, 2010 | Televison & Video

1 Answer

Humming/buzzing sound

That could be either the ballast, or colorwheel. Does the sound get louder at the rear of the tv or louder in front. let me know I may be able to help you.

Apr 08, 2008 | Toshiba 46HM95 46" HDTV

1 Answer

Audio static

could be some old electrolytic capacitor or some bad speaker

Mar 14, 2008 | Symphonic ST420FF 20" TV

1 Answer

Buzzing sound from my tv

tv makes a buzzing sound when i turn on the set, than stops.

Dec 10, 2007 | Harsper HP-4200VPM Television

1 Answer

LG LC55 humming/buzzing

Have you tried adjusting the contrast? , have a similar problem with a 42'' lcd and it appears to be related to the contrast setting .If is set my contrast below 90% the buzzing sound stops.
This buzzing sound seems to be a common problem with LG TV's

Nov 24, 2007 | LG 42PC5D Television

1 Answer

Buzzing Noise and TV picture is yellow

Andy, I'm thinking the buzz is from the deflection coil (yoke) on the neck of the tube or the power supply. Probably not the high voltage as you can hear the "buzz". If it's really that annoying, you can take a length of rubber tubing (no metal) and listen to the buzz coming from the chassis kind of like a stethoscope. STAY AWAY FROM THE HIGH VOLTAGE, please. The yellow picture sounds like a blue chroma failure. A tube can be rejuvinated if need be but that's a job for a pro. Hope this helps.

Oct 30, 2006 | JVC AV-27220 TV

Not finding what you are looking for?
RCA F27628 27" TV Logo

930 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76534 Answers

matt martin
matt martin

Level 3 Expert

1258 Answers

Cindy Wells

Level 3 Expert

6240 Answers

Are you a RCA Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides