I followed the FAQ from Samsungs website but it did not help. I suspect it's one of the high voltage transformers. Is that something that I can replace myself and should that be my first step?
The buzzing, hissing, or high-pitched sound you hear coming from your Projection TV is most likely caused by the one of the high voltage (flyback) transformers in the set. These transformers convert the relatively low voltage electricity that comes from the outlet in your home to the high voltage electricity needed to drive the cathode ray tubes in your TV.
You may be able to reduce or eliminate the noise by doing the following:
Making sure that you have plugged the set in using its three pronged power plug. Using a two pronged adaptor to connect your TV to a two pronged outlet can cause the transformer in the set to buzz or whine.
Setting the brightness level lower. A brightness level set too high can cause the TV to whine or buzz.
Straightening out any audio and power cables you have in the vicinity of the TV so they do not overlap. Overlapping cables can cause a slight hum.
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Re: TV Just Started Making a Humming/Buzzing sound
Replacing a flyback is not something I would suggest for anyone with no electronics experience. Second, lets see where the noise is coming from first. Take off the back and listen to the noise. The flyback will be at one end of the large red wires that go to the tubes. Sometimes the connection at the tube is not 100% and the noise comes from there. BE CAREFUL - there are high voltages going through this red wire that can be dangerous even with the set UNPLUGGED!! IF the noise is coming from the connection at the tube, with the set unplugged, carefully turn the rubber cap back and forth touching only the rubber part with one hand. Put the other hand in you pocket while doing this.
If the noise comes from the flyback side, if you can solder, again with the set unplugged, try resoldering the pins on the transformers. That may resolve the problem.
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Oct 3, 2009 - 30 posts - 7 authors
Its so high pitched that some people can barely hear it, but I guess I have sensitive hearing. ... Anyway, this seems to be a fairly common issue and it is caused by either the ... You're probably hearing a transformer humming.
Dec 30, 2008 - In my case, the monitor was fine for the first two months. But then started making a buzzing noise... 1) when on, 2) worse when .... my Samsung TV ismaking high pitched noises even if its turned off. I will NEVER EVER EVER ...
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.
Let me know model number of set for more information.
On chance it has the high voltage transformer I attach a photo of what that looks like.
Ur power supply board.Transformers have have high voltage gap.This problems must take the tv aparts put some glue arond the transformers,sometime solved this problems,or must replaced all the trnsformers make the humming noise.Brand new tv take it back,where u bought it get a replacement or call the Manufacture help to fix the problems or replaced the part that cause the problem.
This sounds like the IHVT (flyback) is arching and or going bad or the horizontal frequency is changing. you may have to remove the back of the TV and tell me if you see any arching from the flyback. I would not suggest that you attempt to repair this since the high voltages section have voltages that can kill.
The power supply is telling you that it has a short. I think you have a bad high voltage transformer in the horizontal deflection circuit.
I've repaired several RCA's with this very same problem.
The newer RCA's are vert prone to high voltage transformer failure !
The horizontal output transistor drives a transformer that gives you the high voltage to light up the picture tube,either the transistor or the transformer have gone bad,sometimes both have to be replaced and sometimes the transistor fails for no reason by itself.Be safe and call for help if you are not familiar with tv service.