Question about RCA F36649 36" TV

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T V makes noise

My t.v. shows a great picture. It makes a buzzing nosie. I cannot understand a thing it is sayin.g Please help me with this problem.

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Re: T V makes noise

If u know electronics stuffs, try replacing the audio output ic.

Posted on Jan 16, 2007

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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.

May 01, 2009 | RCA 36F530T 36" TV

1 Answer

Quasar 1989 tv makes a buzzing motor sound

Hi and welcome to FixYa,

Initially, if you have confirmed that the source of the buzzing sound is from inside the TV, then that would indicate a component about to fail or would need attention. Let us try process of elimination:
  • tuner - most unlikely, the tuner is responsible for selecting the channel. No component/part of the tuner could make such a mechanical buzzing sound;
  • speaker(s) - most unlikely, the speaker could have a buzz but generally would not affect the video nor cause snow (weak TV signals);
  • transformer - a strong possibility although without knowing the exact model, at most generic ideas; power transformer, flyback transformer, horizontal drive transformer (unlikely);
  • arcing - another strong possibility. This could be caused by damp, dusty surroundings of the components especially at the FBT area. Another area that could have adverse effect when dusty/damp would be the anode cap.
This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Nov 26, 2008 | Standard (CRT) Televisions

1 Answer

Buzzing sound

You haven't specified where the buzzing sound is coming from, if it is coming from speakers, changing capacitors in the audio section will fix the problem, especially the filters. Now if it sounds like a hissing sound from back of the tv, the CRT base socket is the culprit. It is an easy thing to fix, and the base is cheap, but make sure you purchase the exact same type of base or it will harm the CRT. Good luck.

Jan 22, 2008 | Samsung TXN2775HF 27" TV

1 Answer

My tv is buzzing and doesnt show a picture

sound like u have a bad flyback xformer also u need to replease horizontal output xsistor

Dec 08, 2007 | RCA F32648 32" TV

2 Answers

Buzzing noise with no picture or sound.

The power supply is telling you that it has a short. I think you have a bad high voltage transformer in the horizontal deflection circuit. I've repaired several RCA's with this very same problem. The newer RCA's are vert prone to high voltage transformer failure ! Stargazer

Aug 20, 2007 | RCA F36649 36" TV

1 Answer

SanyoDS25390 Tv good picture buzzing noise

What are you using as a source? If its a cable/satallite box, double check that first. If its a video input or a scart input, swap out the cables. If it still there you could have an input problem or a filter capacitor going bad. Does the hum get louder with sound? If it does it is an input source and or cables. Good luck Ps please dont forget to rate this thread.

Nov 25, 2006 | Sanyo DS25390 TV

1 Answer

Buzzing Noise and TV picture is yellow

Andy, I'm thinking the buzz is from the deflection coil (yoke) on the neck of the tube or the power supply. Probably not the high voltage as you can hear the "buzz". If it's really that annoying, you can take a length of rubber tubing (no metal) and listen to the buzz coming from the chassis kind of like a stethoscope. STAY AWAY FROM THE HIGH VOLTAGE, please. The yellow picture sounds like a blue chroma failure. A tube can be rejuvinated if need be but that's a job for a pro. Hope this helps.

Oct 30, 2006 | JVC AV-27220 TV

1 Answer

High Pitch buzz noise when plugged in and it doesn't turn on

The tv has a shorted component and that is why is making the noise,call a qualified technician to find it and dont try to use it anymore.Is not a fuse.

Sep 12, 2006 | RCA F25649 25" TV

2 Answers

Grundig MFW 82-2501 no picture or sound

If you are getting the initial 'pang'(!!!???) noise, then it looks like a cold solder in the Horizonbtal Oscillator or Hor. Output stages. The set is trying to power up, but the Horizontal Oscilator is not 'booting' up. Since it is a new set, it must be under warranty....Get it checked by the company Technician.

Aug 24, 2006 | Grundig GF70-600 TV

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