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Insignia HDTV High Pitched Noise

The TV will emit a high pitched noise every 30 seconds or less. If it is on mute, it will still emit the tone. We have removed all electric appliances from the area to see if it were just an interference. It still does it. There are no specific channels or volume that it is to be set on in order for it to do it. The only time the sound doesnt happen is when the tv is off. Its getting on my nerves. Please help me if you can!! Thank you!

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Re: Insignia HDTV High Pitched Noise - Insignia IS 20" TV040919 TV Standard (CRT) Televisions

Sounds like flyback problem

Posted on Dec 25, 2007

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My sansui tv makes a loud high pitch noise. I have had it 3 years, it is a a riging noise, and hard to hear the tv shows. what do i do?

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.

Sep 09, 2010 | Sansui 27" TV

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When my rca 36F530 tv is plugged in it makes a high pitched buzzing noise picture does not come on

There is a short circuit in the high voltage circuit. the transformer who helps to create the high voltage or his power transistor is damage. replacement needed. the repair is not expensive, because the parts are average repair. Ask for an estimate.

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RCA 57 inch hdtv Model#HD56W58 has sound but no picture.

WOW...had a high pitch noise, came and worse as time wore on. Would shut off the set, times it cleared times it didn't. Warranty folks set out a TV repairman--said he had worked for RCA exclusively for years...anyway, explained that the 1k hertz noise was a known issue with the HD56W58 and that RCA’s published fix was "nail polish" applied on some board, had something to due with power and vibration...long story "presto" noise gone...but after 6 or so months we began to hear it again—say it ain’t so, but yes the high pitch was back. Same repairman, this time bigger problem...along with noise, the network card is broke and Fry’s Electronics (Irving, TX—hear that Corporate HQ at San Jose…your Irving store needs to be leased in and tote the company line...where's the customer satisfaction???) is balking at a “equal” replacement, they see it as take the less than equal product or get store credit…good luck & wish me luck with the equal replacement they tout when pushing the warranty.

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1 Answer

Trouble turning on tv. High pitched noise/click.

The mainboard might have some loose components, or cold solder , or may be the filter capacitors are becoming faulty. Yes it is worth repairing, bring it to the repair shop. Cheers.

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1 Answer

Samsung SlimFit 30" high pitch whining noise

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.

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Hi there!
You may want to start by checking for suspicious looking components or hot spots. There may be some Caps faulty in the power supply or Horizontal. Good Luck, Jus004

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According to the Samsung website: "The high pitched sound you hear is probably coming from the flyback transformer. The flyback transformer converts the relatively low voltage electricity that comes from the outlet in your home to the high voltage electricity needed to drive the cathode ray tube in your TV. It is not unusual for a flyback transformer to buzz softly when it operates. However, if the sound is loud and high pitched, it probably means the transformer is failing. To eliminate the sound, you will have to get your TV serviced."

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1 Answer

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Horizontal output transistor is shorted,caused by bad flyback
transformer.If you want to pursue the repair,please give the
service number off back......I will get part # s........T.

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