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I have an old Panasonic SA HT 700 that sometimes emits a high pitched whine,or no sound at all. Turning it off and on again seems to work, but how do I get this to just not happen?

More info: My system consists of the HT 700, a Fire TV, and an old Samsung Plasma TV. Since the HT 700 does not have a HDMI there is also a HDMI Converter in the mix. So far I have change the RCA cord-stereo to converter, hdmi- Fire TV to converter and converter to Samsung, but I don't remember changing the red/blue/green cord. I also changed the Fire TV from wireless to wired and the speaker wire 14 gauge on a friends suggestion. Twice, when I have forgotten to turn off the stereo, it has woke me up in the middle of the night with a high pitch whine. It almost sounds like a smoke alarm, without going beep-beep-beep. I don't usually turn off my Fire but I do put it to sleep. My Samsung is also usually on, set to source hdmi. Any and all info and suggestions are appreciated.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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nfandres
  • 168 Answers

SOURCE: High Pitch Sound From Samsung TXN3071WHF 30" TV

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!

Posted on Feb 26, 2007

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SOURCE: RCA 36" TV - High Pitch Sound - No Picture or Sound

check for high voltage s3ection of your TV. A Flyback transformer is defective especially in the high voltage cale of your flyback....

Posted on Oct 20, 2007

  • 236 Answers

SOURCE: Alesis M1-Active left speaker emitts a very high pitched wine that sounds like feedback

have your built-in amp checked for trouble. there should be trouble in the output stage feedback loop. this is something to be done by a repair technician

Posted on Apr 11, 2008

  • 1 Answer

SOURCE: Sony KF50we60 hdmi-dvi sound cuts when plugging into a ht-sf2300

DVI = HDMI without the audio connectors. So basically you need to connect your audio in some different way, PS3s allow you to keep your video signal as HDMI and change the Audio signal to component, so that is one way or doing it, not sure if the blue ray players allow you to do this though.

Posted on Jan 11, 2009

  • 1 Answer

SOURCE: Toshiba Regza bought 1/28/08 makes squealing noise

It's in the repair shop. I'll write back what the problem was and how much it cost to ship.

Posted on Oct 08, 2009

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