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Buzzing sound with promedia ultra 5.1 system - Audio & Video Receivers

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We were listening to music , cd , & a buzzing sound came over sound system then nothing. no functions work at all. Main board lights up but that is it.


If the screen lights up then shuts down this could mean it's going into safe mode the other option is that part of the power supply could of failed this is normally only a capacitor or resistor

Aug 03, 2013 | Denon AVR-2307Ci Receiver

1 Answer

PROBLEM WITH SUB WORKING ON A PIONEER VSXAX5I RECIEVER


The problem is in the powered sub, the buzzing sound is caused by one or more defective audio output ic's that drive the subwoofer directly, service is the only option to remedy the situation.

Apr 14, 2012 | Pioneer Audio & Video Receivers

1 Answer

BUZZING WITH NO SOUND


The audio outputs in the receiver are bad, and will need to be replaced.

Apr 08, 2012 | Marantz SR6005

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

Humming sound (speakers)when HK AVR is powered up.


In my case the buzz was only on front speakers. There are 3 capasitors (100uF/25V) very close to the cooling ribs of 3 regulators in the power supply. In my case the C922 was bad.

Apr 02, 2009 | Harman Kardon AVR 500 Receiver

1 Answer

Having problems with audio on a avr-588 denon receiver


i have the same problem..did you find a solution?

Mar 28, 2009 | Denon AVR588 Receiver

1 Answer

Speakers


'Buzzing' is not a good thing; it implies that filtration of the DC used by the output section is not as it should be. Power supplies that are mildly overloaded can cause this or an abnormal current drain from one (or more) channels. 

The odd problem with the back speakers does sound like a setup problem rather than a circuit failure.

Oct 31, 2008 | Onkyo TX-DS989 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

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