Question about Teac AG-370 Receiver

1 Answer

Buzzing Sound At all times, even if nothing is playing on the CD player or any other input device, there is a constant buzz playing over the speakers.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 218 Answers
Re: Buzzing Sound

You've got a fried output transistor or one of the small preamp transistors that feed the output on the left channel. Both of these transistors are after the volumn control so it would have no effect on the buzz. Good luck.

Posted on Jan 30, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Constant buzzing sound in all speakers

Sounds like either a transformer or amplifier problem. You haven't reversed polarity on the speaker connections? or changed the speaker sizes, Ohms, ect? Probably a resistor, diode, or condenser in the amplifier causing feedback through the speaker system. It's doubtful both speaker coils went out at the same time. Possible, but doubtful.And you mention that the volume "SPIKES" from time to time. Could be as simple as corrosion on the volume "pot". Basically a Rheostat that allows more signal the farther you turn the knob. If so, you can clean that yourself with a spray product available at any Radio Shack. It is for cleaning electonic components and leaves no residue. You could have this checked at any competant electronics shop, but BEWARE, the "Bench Fee" to test may be more than the value of the system. I would ask what the "bench fee" was to determine a problem, and then what the labor costs would be to repair either a transformer or amplifier with resistors, diodes, capacitors, ect. Electronic equipment tends to "break down" over time and use, and sometimes you can replace a component cheaper than repair. If part of a rack system, then you may want to retain this sub-part and repair may be your choice. I would ask about the fees to test, and the costs of labor to repair, before turning it over. How old is the system?

Sep 26, 2009 | Kenwood VR-7070 Receiver

2 Answers

Constant Buzz coming from SX-255r

Power source harmonics. Or its power supply regulation. Check also if input line is touching something.

Apr 03, 2009 | Pioneer SX-255R Receiver

1 Answer

Buzzing on certain speakers (but not all)

do you have the problem in stereo mode (no suround) Try to disconnect rear speakers and see if you still have the buzzing if you do then disconnect center and check,using only the mains,process of elimination, check your polarity + - on speakers and check the wire.I would double check ALL connections even RCAs

Feb 01, 2009 | Yamaha HTR-5840 Receiver

1 Answer

Loud Buzzing Sound

This may be a power supply failure, and or a short in the output stage, and in the drivers for the output stage.

This is not a repair you can do at home unless you have a lot of experience in troubshooting and analysing problems in power amplifier equipment.

Jerry G.

May 04, 2008 | Onkyo TX-SR875 Receiver

1 Answer

Technics sax-710 receiver Nht sb-1 speaker developed a buzzing sound when playing, Kids may have over drove speakers(not sure) Replaced with nht supezeros now both speakers sound very staticy like off...

The speakers have buzzing sound because of damaged cones.
Over driving speakers, especially with heavy low frequencies, can tear the voice coil away from the cone.
Once damaged, only replacement will help

Apr 24, 2008 | Audio & Video Receivers

1 Answer

I need help!!! my headset is buzzing lol

check the audio setting. If AUX is turned on instead of Microphone, it will cut out because its waiting for an input from another source.

make sure the LINE-IN isnt turned on or the S/pdif-in.

Only have on the ( PLAYBACK, WAVE, CD AUDIO, MIDI, and Microphone. And there not muted or turned down.

If its USB it may need drivers but they should have come on a CD with it.

Also make sure that if your using sound card, that its set up in the audio properties to be the audio renderer

Mar 31, 2008 | Audio & Video Receivers

1 Answer

Buzzing emitted by vsx-409

Could be the result of having DTS compatible equipment connected through the analog inputs on the VSX-409D. Noise and distortion will result as essentially the DTS signal is being played back undecoded. If this is the case you'll have to connect your LD or CD player through the digital connections (coax or optical) and set 'Signal Select' (button on front) to 'Digital'.

Jan 06, 2008 | Pioneer VSX-D409

1 Answer

Distortion/noise and buzz in front left speaker

Try to see if the reciever will make the buzzing/noise without anything connected to it except power, and speakers. Tune into a local radio station and see if the noise continues. If the noise has stopped, then you know there is an issue with the player or cable.

Dec 28, 2007 | Onkyo TX-SR503 Receiver

1 Answer

Buzzing sound thru speaker even with volume down to zero

maybe some filter capacitors of the amplifier has been drying out! check for the main filter capacitors and output capacitors of your amplifier. replace them if necessary with a higher capacitance but the same voltage rating!

Nov 16, 2007 | Onkyo TX-DS696 Receiver

Not finding what you are looking for?
Teac AG-370 Receiver Logo

Related Topics:

210 people viewed this question

Ask a Question

Usually answered in minutes!

Top Teac Audio & Video Receivers Experts


Level 3 Expert

57192 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

66623 Answers

Are you a Teac Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides