Question about JVC Flat Panel Televisions

Open Question

Electrical buzzing/squeal from back of TV

I own a 42" JVC plasma TV (manufactured in October 2004) that has recently started to make an annoying buzzing/squealing noise especially when there is a lot of white being displayed. Any advice on what needs to be replaced or if it can be fixed would be appreciated.
Note, I live in Fort Worth, Texas, so this is not an altitude problem.
Noise is present with any input (HDMI, component, SVID etc) and with speakers muted. 
Sounds like some electrical component is nearing the end of its life!

TV JVC PD 42V475 (42" plasma)

Posted by on

  • admarr1 Jul 27, 2008

    I sweated the solder joints on the cooling sinks of the power transistors (circuit board at top right of TV looking from behind). Definitely reduced the noise by a huge amount and the TV is useable again at low volumes without that irritation.


×

1 Suggested Answer

omaharox
  • 161 Answers

SOURCE: humming or squealing noise when tv is turned on (model 32LG30)

Be sure you have installed the stand scresw weather or not you are using the stand.
The back panel can vibrate without the screws.

Other sources of a hum are the coils on the power supply.
The power supply would have to be replaced to solve the issue.

Posted on Jan 20, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Samsung plasma tv pn42a400c2dxza. when i try to turn it on it starts making clicking sound than it starts buzzing. i unpluged everything from the power supply and the buzzing sound stopped. but when i plug...


This problems is the power supply board is causes and the problems.Try website like Ebay.com buy a whole refurbish power supply board for the replacement,will solved this problems.

Nov 29, 2010 | Samsung PN42A400 42 in. Plasma TV

1 Answer

JVC PD35D30 Plasma won't turn on anymore...


Yeah, I was going to suggest power supply issue. Plasmas IMHO, are not worth spending the money to fix. Its the reason why they are so cheap these days in comparison to LCD's. I had a 50" Samsung Plasma that went out on me within 2 years (E Buffer board and XMain problem). Its not about the manufacturer but more about the Plasma technology. Do a few searches about plasma and you will find a lot of problems with these tv's. Id say cut your losses, sell the TV for parts and buy a more reliable technology

Jun 07, 2010 | JVC PD-42WV74 42 in. Plasma EDTV

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

I have a 42" Vizio picture has an annoying thick red line


Ur backlight inverter video board is dying.
Need a new one.

Sep 22, 2009 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

TV buzzing


may be a problem with power supply unit.

Nov 14, 2008 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Sanyo TV buzzing


may be a problem with power supply.

Nov 14, 2008 | Sanyo DP42746 42 in. Plasma Television

2 Answers

42 inch plasma


TURN OFF THE MAINS AND THEN SWITCH IT BACK ON

Jun 06, 2007 | Samsung HP-R4262 42 in. Plasma Television

3 Answers

Audio interference


Is the sound comming from the speakers on the TV or the back of it? Plasma TV's can doing buzzing sounds when moved to higher elevations.

Jan 27, 2007 | Sampo PME-42S6 42 in. HD-Ready Plasma...

4 Answers

JVC 42 INCH PLASMA POWER LIGHT BLINKING ONLY NO PICTURE


no kidding? what is the problem so prevelant in this unit? obvious design flaw.

Dec 19, 2006 | JVC PD-42WX84 42 in. HD-Ready Plasma...

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

Related Topics:

131 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

68352 Answers

Keith Poitier

Level 2 Expert

106 Answers

Cindy Wells

Level 3 Expert

4759 Answers

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

Answer questions

Manuals & User Guides

Loading...