Question about RCA P60921 60" Rear Projection Television

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Click/buzz noise from power board like transformer is tring to turn on. no sound or video

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Bad FBT flyback transfomer Call Mats for Part #239111 1-800-628-1118

Posted on Sep 26, 2009

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Panasonic TX-P50G20B how do I fix a buzzing noise coming from the central circuit board on the back of the tv


Buzzing noises come from transformers.. use a plastic pen to push down on each transformer in turn to find which one it is, then replace it.
no end of glue or resin or anything can stop the buzzing so just replace it..
good luck !

Mar 30, 2017 | Panasonic Televison & Video

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 | Televison & Video

1 Answer

Tv has a buzzing nouse


In almost all cases this is caused by a small transformer which is vibrating hard enough to cause the buzz.

The louder it is the easier to locate it.

Repair techniques vary from locating and dampening the sound with Hot Glue Gun to just replacing the entire board that it is on.

It is irritating but poses usually no safety issue.

Hint: usually in newer sets it comes from the power supply board.

Apr 03, 2012 | Samsung Televison & Video

2 Answers

I have a proscan 42LA45H 42 in television that has started making a buzzing noise from the back. What is causing this, and what do I need to do to fix.


Hi
If picture and sound is Ok, and only this buzzing sound is heard from the back of the TV, It should be due to core soose of some ferrite cored transformers inside, especially to the power supply regulator board of the TV. Open the back cover of the TV and swtich it ON. Listeen very carefully which transfromer makes the buzzing noise. Just trouch and press the core of the transformer suspected with some non-cunductive material like glass rod, or a stick of dry wood. You can identify the transformer that makes noise by this way. After identifying the exact transformer; switch OFF the set, unplug it from mains socket, apply some "Super Glue" like fast boanding glue to the joint of core of that transformer. Allow sometime for the glue to set. This will solve the buzzing sound problem of your TV. OK

Jul 13, 2011 | Proscan 42LA45H 42 in. LCD TV

1 Answer

There is a loud buzzing sound, like a weed whacker trimming grass, coming out of the TV. It started suddenly when I turned it on 2 days ago; this has not happened before. How do you get rid of the...


U can't the buzzing noises are comming from the tv power supply board itself have some short of problems on it high voltage transformers parts,not easy to get rid of,must know how to troubleshoot and replaced electronic components parts to fixed it.The simpliest way just do a replacement of the whole power supply board,that the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Jun 18, 2011 | Soyo DYLTO37A 37 in. LCD Television

1 Answer

I turn the tv on and there is a constant buzzing sound what is it?


Hello
If the picture is correct in all resepect, and only a buzzing sound only comes from its inside circuit, it will be due to a loose core fittings, on any one or two ferrite cored transformers inside the power supply sytem. There are transformeres of small and large types, both in power supply and other boards. We have to find out which transformer makes this buzz sound during working. For this, you have to open your TV, and power it ON, and listen the the sound carefully, and detect the transformer which makes this noise. After finding the exact one, this loose core contact can be fixed with the help of Super Glue or similar fast acting adhesive. Just put three or four drops of adhesive in between the core will rectify your problem.
If there is no picture at all and a buzzing sound like this is heard from your TV, the inside circuit has some short in it and has to be detected and rectified. OK>

May 01, 2011 | Polaroid FLM-323B Television

2 Answers

Vizio E320VL has a buzzing or static sound coming from the right speaker.


You may have blown your right speaker if you max the sound allot, you may need to replace. Hope this helps- Pleas comment

Mar 17, 2011 | Vizio E320VL 32 in. HD Ready LCD TV

1 Answer

When plugged in, my tv automatically starts clicking between the on and off light. The picture and audio stay off. It makes a slight buzzing noise. What may the problem be?


The power supply board is dead.The buzzing sound,mean those transformers shorted and dying.Power supply board, that the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Aug 06, 2010 | Tatung V23CLTT 22.92 in. LCD Television

1 Answer

Buzzing noise coming from Vizio HD TV speakers


It ur Vizio tv,The power supply board is the problems.The transformers in the power supply board have gaps in the transformers.The high voltage curents flow that make that buzzing noise.

Apr 07, 2010 | Vizio VW32L 32 in. LCD HDTV

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