Question about JVC AV-27530 27" TV

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High pitch crackle buzing sound when set turned on

I have a JVC 32 inch TV model AV-32730 that was given to me, when I turn the set on it has a high pitch crackling buzing sound for about 30 seconds then the sound becomes normal with no noise. This only happens when the tv is turned on after it has been turned off for a while and the set is cooled down. I also noticed the sound seems to go up and down almost fading in and out when watching.

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Re: High pitch crackle buzing sound when set turned on

Did you find a solution because I have the same problem on my JVC?

Posted on Nov 21, 2006

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Hi, I have a JVC 32inch Model# AV32050 and at first it took several attempts to get it to power on, but now it will not power on at all.I hear a high pitched sound while it is plugged in outlet. A few...

Take the tv aparts.Take out the tv video board that is connect to the CRT tv tube.Plug the tv back in "High Voltages" be very careful now.Find wire with solid insulaition grounded in a metal frame some where the other end of the wire go toward the "High Voltages" Open CRT tv tube,u will hear a big "POP".Now unplug the tv.Put the tv back together again,nor tv CRT tube should be clean out of bad contamination poison.The tv Focus well be clear up and work as normal tv again.If u scare don't want to mess around with open "High Voltges" pay the tv shop like $50 bucks they can do this job for like 20 mins.

Jun 06, 2011 | JVC AV-32050 32" TV

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Low Volume despite High setting on TV

HI I am having the same problem. tv sound is fine, then fades so that 50 is the only sound volume to hear the show. It happens intermittently. Did you get your's solved? thanks

Jul 06, 2010 | JVC AV-27050 TV

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I have a samsung neo 32 inch picture tube tv. When I turn it on there is no picture or sound, but there is a light high pitched noise.

That high pitched sound is likely the Horizontal Output section trying to work. It operates at 15,750 Hz or at the upper end of normal human ears.
It will sound like a high pitched whine.

This is a section or your television that you don't want to fool with unless you are quite familiar with servicing your set. There are very high voltages involved and only a qualified technician should tend to this defect. It maybe easy to fix or it may be quite involved. Get an estimate first then decide to go further or not. There is a potential fire hazard here so don't operate your set until this is resolved.


Jun 23, 2010 | Samsung DynaFlat TX-P2764 27" TV

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I need an origanal new remote and a owners manual for a jvc av 32730

JVC MR140 Miracle Remote Part Number: MR140 | SKU: 15330258 You can purchase this at This will work with any JVC TV, but not with combos or other products. Also I found a user's manual at I hope this helps you out.

Jan 25, 2010 | JVC AV-32730 TV

1 Answer

High pitch sound after the TV warms up on my JVC 32" TV

    According to the symptom the problem is in memory IC also called EPROM, Replace the EPROM with data and your TV work fine again.

Jan 09, 2010 | JVC AV-32D305 32" TV

1 Answer

32 inch jvc av-32d302

Those are called retrace lines. The electron beam has to go back to the beginning of the screen as part of its raster scan. Normally it is turned down so that it can't be seen. There is a little adjustment knob on the high-voltage flyback transformer called "screen" that will hopefully adjust this for you. If that doesn't work it is an indication that the high voltage circuit is dying.
Hop Ya Fix It.

Feb 01, 2008 | Standard (CRT) Televisions

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Hi.JVC AV-32F803/Y Turn on and shot it self off in a few seconds?

Sound like no High Voltage, have you tried the Horizontal output. Also look at caps in power supply for leaky ness.

Sep 21, 2007 | JVC AV-32F803 32" TV

3 Answers

High Pitched Noise on TV


Sep 16, 2007 | Standard (CRT) Televisions

1 Answer

JVC AV-32730 36" picture problem..

From what you describe, a solder joint has probably cracked loose in a power supply or deflection circuit, which is quite common. Since you do sometimes see a good picture, all of your major components are fine. Repairing cracked solder joints is a very easy procedure and definately worth fixing on a 32 inch TV. The first 2 digits of the model number indicate the size of the TV.

Aug 04, 2007 | JVC AV-32D305 32" TV

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JVC AV-32F704 32" TV Picture is blurry - cannot read any writing on the screen

You didn't mention if you saw fine white diagonal lines running through the screen from top to bottom. If so, you likely have a shorted Picture Tube which is not usually fixable. If there are no lines seen running through the screen, then it is possible the High voltage transformer which also has a screen voltage and focus control built in that could be bad. I would expect the cost of that part to be about $100, so the repair cost total could approach that of a new set I would guess.

Apr 12, 2007 | JVC AV-32F704 32" TV

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