Question about Panasonic CT-36D20 36" TV

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Panasonic TV After a power outage my tv will not come on. When i push the power button it just makes a high pitched whining noise

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The power surge has caused a failure of an internal component. If it is making this noise it is possible the line output transistor has failed. I would advise calling a service repair centre & have someone there take alook at it. All being well this may be the only problem. Power surges can sometimes cause other faults.

Posted on Jul 30, 2009

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Tv just started making a very high pitched noise, although picture and sound are fine?


Barb, noise may be from a power supply/ transformer on it's way out.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

HELP what is that high pitched noise when tv is on

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Funai tv. When plugged in, makes ear piercing high pitched buzz that goes away when unplugged. Will not respond to buttons. No picture or power. Already replaced power board. What now??


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Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

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We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

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Jan 21, 2016 | Funai Televison & Video

1 Answer

I have a magnavox 37mf331d/37 that has developed a high pitched whine.the longer the tv is on the louder the whine.the tv is 5-6 yrs old


It's likely a capacitor associated with the power supply having gone bad.
It's obviously beyond your expertise to repair it yourself.
Find a trustworthy repair shop and take it there.

Sep 05, 2012 | Televison & Video

1 Answer

A noise had been gradually increasing from a grinding sound to a high-pitched whine. COntinues until the screen is completely off. Sounds like a fan motor may be out of lubrication.


THAT TV HAS WHAT IS CALLED A COLOR WHEEL WHICH SPINS AT VERY HIGH RPMS AND CAN MAKE HIGH PITCHED WHINING/GRINDING NOISES IF A FAN WAS BAD THE TV WOULD SHUTDOWN AND THE SOUND WOULD BE MORE DULL SOUNDING.

Dec 17, 2010 | RCA Scenium HDLP61W151 61 in. HD-Ready...

1 Answer

Screen suddenly turned off, makes an odd high pitched noise when it tries to turn back on. power button flashes orange


Sounds like there is a power problem if the neutral (return) wire on the power supply has become high impedance (or even disconnected) then you will get a high pitched sound coming from the TV PSU also the voltage that is presented will not be 240V which will give you the same problem.

The orange power button means standby if you fix the PSU then the TV might work again but it may have been damaged by the PSU.

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1 Answer

High pitched whine/sometimes TV won't turn on


The power supply on this model will whine when it is shorted or overloaded - the set would have to be brought in to determine exact cause.

Oct 23, 2009 | Televison & Video

1 Answer

RECOR COLOR TV dead high pitch whining noise


you have a short in the horizontal ckt,look for diodes,horizontal output it might be damage or a bad cap, if not the fly-back transformer is gone.

good luck


caypianan@yahoo.com

Oct 20, 2008 | RCA F32650 32" TV

2 Answers

High pich whine from CT-36D32 36" TV


jdosk-the high pitch noise you hear is generally from the horizontal output being shorted,the horizontal output is usually near the flyback transformer,get a digital multimeter to checkthis part.Let me know I'll try to help. cooltek Feb.16/08

Feb 05, 2008 | Panasonic CT-36D32 36" TV

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