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Toshiba 42 HP84 Plasma TV has lines in it and is now making loud buzzing sound.

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techman
  • 3130 Answers

SOURCE: Toshiba 52hm84 DLP buzzing sound after replace bulb?? no pic

You have bad capacitors in the power supply that took out the regulator, or the ballast circuit is defective. Not really a repair for the novice. Good Luck

Posted on Nov 07, 2007

  • 1 Answer

SOURCE: I have no audio on my 42" Samsung plasma tv

This happened to me also. It had to be taken apart. The audio connector on the motherboard had come lose. Hope this helps.

Posted on Feb 07, 2008

  • 26 Answers

SOURCE: Plasma TV buzzing

If the adjustments on the power board are correct and if you are not at high altitude, the plasma display panel is defective. If the set is off warranty, it is not cost effective to replace the display panel. If it is off warranty, you should give the manufacturers Customer Relations a call. The phone number is usually right on the back of the tv. The manufacturer of the tv might make a warranty concession if they are concerned about their brand reputation. Some manufacturers find it less expensive to just switch brand names rather than make good on defective products. If all else fails, you might get some money back by selling the circuit boards on eBay.

Posted on Feb 20, 2008

  • 298 Answers

SOURCE: Problem with Toshiba DLP Projection TV Model #52HM84

It is possible the lamps may be defective or that they may be the wrong replacement for this model, as it may have a different wattage setup with the ballast. If you want to try to order the TB25 lamp from a different vendor, you can order the original Toshiba replacement lamp for this model (52HM84) from a major Toshiba parts distributor at the link below:

Toshiba 52HM84 Replacement Part TB25 Lamp / Bulb

Posted on Apr 10, 2009

  • 304 Answers

SOURCE: My samsung 42 inch hdtv is making a buzzing noise

First. The whirring or buzzing sound you hear is the Color Wheel and it needs to be replaced. Second, since I do not know when and if the original lamp has been replaced it is a good idea to replaced the lamp. The bad Color Wheel is the one causing the set to shut down.

Posted on Apr 14, 2010

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1 Answer

Tv sound plays but no picture


Some components have failed inside the board. Kindly do not use the TV until serviced by a qualified technician.

Jul 22, 2012 | Toshiba Televison & Video

1 Answer

I have a 42 inch Hitachi plasma tv that is making a very loud static noice coming from the internal speakers. It stays at a contstant very loud volume unless I completly mute the tv or turn the volum


Based on what you have tried if a buzz or loud static via the speakers you have something wrong in the audio output circuit of the set--problem here is that circuit may be part of the Main board that processes all signal---a look inside---following the speaker leads back would lead you to that board.

A simple thing to do to narrow it a little (you may have done this) is with sound all the way off put your ear to the internal speaker--hear anything at all like a deep hum?

Depending on age of set and cost of the board likely bad it may or may not be a do it yourself repair.

SD TECH

Apr 26, 2012 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

My 42 inch plasma has a loud squeel in it


Hi

If you can hear any buzzing from more than a few feet then the TV is defective and needs to be replaced. Buzzing is a common defect among plasma TVs regardless of brand. It has nothing to do with the plasma cells working; usually it's a defective board or a power supply problem or something like that.

Also check this related article in the given link to get a detailed idea:-

http://ars.samsung.com/customer/usa/jsp/faqs/faqs_view_us.jsp?AT_ID=14966&PROD_ID=

Thanks for contacting fixya.com

Please do get back to us for further query.


Jan 23, 2012 | Panasonic TH-42PX75U 42 in. Plasma...

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

LG 42'' Plasma 42PC1DV loud pop,buzzing, no picture cracked screen


pdp panel cracks need replaced
Manufacturer LGE 42PC1DA Part Number EAJ42047868 Description 42 INCH_XGA PDP MODU

Manufacturer LGE 42PC1RV Part Number EAJ42007501 Description PDP,MODULE-VGA

Oct 04, 2009 | Televison & Video

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

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