Question about Flat Panel Televisions

1 Answer

JVC plasma has a loud buzzing noise

After the t.v has been on for about 15 minutes a buzzing sound comes from out the back of it.

Posted by on

  • stet0015 Mar 01, 2009

    my Poloroid HDTV was on for 20 minutes and started making a really loud buzz sound.I had to tuen it off at once and it quit.Now Iam afraid to turn it on.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 319 Answers

Sounds like power supply is going bad.

Posted on Feb 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Loud noise then lose picture


The green power LED probably is merely indicating that power is getting to your TV but the internal power supply is failing as evidenced by the loud "pop".

Dec 31, 2013 | Vizio P50HDTV20A 50 in. Plasma HDTV

1 Answer

JVC TV LCD Model LT-42PM30 intermittant buzzing noise


Most likely suspect is the power supply board---transformers on that board can and do vibrate hard enough to cause this.

At our shop we either locate the part creating the sound and treat it to hot blue to muffle and remove the noise or if confirmed to be on power board--REPLACE THAT BOARD.

Apr 29, 2012 | Flat Panel Televisions

1 Answer

Hi, I Purchased an LG 50PK350 plasma tv and I am experiencing an extremely loud, annoying buzzing sound even with the amp switched off & the sound muted. The buzzing is not constant ... the brighter...


I have this tv aswell, and yes I will confirm that it does buzz quite alot, but all plasma tvs do, it is to do with how it renders images, the buzzing can be made worse by it being close to a wall and it reflecting back. I found that my tv stand some how amplified the buzzing when i got mine. I dont think its something you can escape.

Mine i notice also when scrolling around menus seems to have lines that follow your selection....not to pleased about that

Oct 18, 2010 | Flat Panel Televisions

1 Answer

A buzzing noise coming from inside the tv but still buzzes when on mute but doesnt buzz when tv guide is up on the screen or when a channel is showing what time it starts


plasma tvs buzz a lot, depending on screen brightness. its probably normal but if you can hear loudly over your volume, may be a bad board or plasma panel. from behind tv, left side = y board, right side = z board, middle = power board ---- bad panel can buzz from anywhere... if you hear all parts buzzing, its probably normal plasma noise

Jun 01, 2010 | Samsung Flat Panel Televisions

1 Answer

Humming sound


Samsung states - A buzzing sound from your plasma TV is normal. It is caused by the electrical charges used to create the images on the screen. The buzzing, however, should not be so loud that you can hear it when the volume on the TV is set at normal levels.It is also important to determine the type of buzzing sound. A sound like a ground hum is completely normal. This buzzing can originate near the power cord connection or from the SMPS board position on the upper back of the TV. The buzz will be more audible as contrast increases on the screen, most notably when displaying an all white screen. If the buzzing sound is loud, you may have the Contrast set too high. Lower the contrast to reduce or eliminate the buzzing.You may also have loud buzzing if the rear of your Plasma TV is too close to a wall or other hard surface. Try moving your TV away from the wall until the buzzing is minimized. [1]
If the buzzing is at a higher frequency and resembles a crackling sound (like the sound of Velcro being pulled apart), and originates from the upper middle back of the TV, you likely have a failing SMPS board. Place a support call with Samsung to have the SMPS board replaced.FP-T5084 Have a known buzzing problem with a very simple fix.If the buzzing is coming from the left or right sides of the rear and the volume can be changed by pressing lightly on those locations, you are probably hearing the vibration of the grounding springs on the back panel. Call Samsung (or whoever) and have a technician confirm the problem. The easiest fix is to insulate the offending spring by applying some felt tape.

May 22, 2010 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

Loud buzzing


check your connections again, if you have the audio and video reversed you will get this exact problem no video/ fuzzy video, and squealy noise out of only one speaker (other will likely sound correct) You're watching the sound channel, and listening to the video channel basically... hehe

Aug 14, 2007 | Zenith P42W46X 42 in. Plasma EDTV

3 Answers

Buzzing


The noise is caused by dust on one of the toroidal transformers(usually a round looking thing with wire wound around it). Go to the back of your television and try and pinpoint were the sound is coming from. Turn your television off and blow it out with compressed air if it is close to air vents in the television. If you cant see it you might have to open your television back panel.

Nov 23, 2006 | Panasonic TH-37PE30 37 in. Plasma...

Not finding what you are looking for?
Flat Panel Televisions Logo

Related Topics:

147 people viewed this question

Ask a Question

Usually answered in minutes!

Top Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

68352 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

Are you a Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...