I have 2 of these televisions in the bar I manage. They are both 3 years old. They have begun to give off a high pitch noise. It could be after 20 minutes of use or up to 3 hours of use, or anything in between. Turning them off, resting (say 1/2 hour) then turning back on only eliminates the problem momentarily.
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Re: High pitch noise
What you are hearing is the mechanical vibrating of coils & or transformers in the tv. 1st and easyest is to hot glue the parts that is making the noise down. if that does not work, removing & reinstalling the part is next. the last is replacement. the most likely parts causing is the 1. horizontal linearity coil, 2. the run or switch mode transformer, or 3. the flyback transformer.
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Easy repair with some Super glue.Must take the tv back cover out.The FBT-the big block of plastic with a red wire with a cap hook to a CRT(tv tube).It have a high voltage gap going through a "3 inches paper clip steel bar on a FBT the big black plastic block.Put some super glue on that "3 inches paper clip steel bar on that big black plastic block.Should stop the high voltages gaps through that "3 inches paper clip steel bar causing a high pitched noises.
ever since for ever, ive always heard a loudish high pitched ring from analog tv's. e.g. i would know a tv was on in another room even if it was muted. ive told other people about it but they dont seem to hear what i hear. so im gonna geuss either
a. analog tv's all make that noise to a verying degree but most people just dont notice it or subconciously cancle it out as normal.
b. its a kind of hyper sensitivity to high pitched noise, in essence, tinitus.
on a final note, its not medical as i always pass my hearing tests. but to answer your question, either buy a digital tv or turn up the volume.
I have had the same high pitch tone problem for several months after about 20 minutes of use. It is so bad it's rendered the TV almost unwatchable. I contacted a repair place from Samsung's website. I was told that is likely the flyback transformer. I don't know what it is, but it sounds cool like a flux capacitator. I was told it would be about $100 to fix. However, I have had very little luck getting the repair shop to order the part and do the work.
I think its the flyback and its starting to leak. this is a component responsible for the high voltage of your tv set. always observe safety in dealing with this. Have it check by a qualified technician. Good luck!