Question about RCA F27628 27" TV

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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

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  • 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? krobinsonfl@yahoo.com

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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 converter.....one is overriding the other

Posted on Feb 03, 2007

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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

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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

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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.

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5_23_2012_9_22_57_pm.jpg

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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.
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