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Sugden A48, one channel keeps cutting out. Sound restored by increasing volume but at low volume goes again.

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The volume control may need to be cleaned. Find a spray cleaner made for electronics, relays, ect. and spray it into the volume control from the back side of it where it connects into the circuit board. After getting the cleaner into the volume control, work it in by turning the control back and forth over and over again. Do all of this with the power unplugged from the unit. After you finish cleaning the volume control, plug it back in and turn it on and then check to see if it is working normal. Volume controls can get oxidized and dirty after a few years and require cleaning. I hope this helps, let me know if you need any further help.

Dave

Posted on Oct 14, 2008

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Kenwood KA 995 amp. volume control, as you increase or decrease the sound, a loud clicking sound is heard.


Katrina, this sounds like a dirty potentiometer (volume control knob). Try turning the unit off, and exercising the knob. That means turn it full turns, many times, like 70 times. Then try it again with power. Sometimes this helps.

Sep 21, 2016 | Kenwood Audio & Video Receivers

1 Answer

NAD 3020 amplifier cuts out on one channel as the volume increases with an audible click When the volume is reduced to zero, after a short time sound is available again on the faulty channel but cuts...


Swap the speakers to see if it correlates.

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

Apr 23, 2011 | Audio & Video Receivers

1 Answer

HOOKED ALL MY SPEAKERS UP BUT SUB AND CANT GET ANY SOUND FROM FM OR TV THAT I HAVE HOOKED UP AM I MISSING SOMETHING ALSO THERE IS A LIGHT THAT SAYS SOUND MUTE BY FM


From the remote control ONLY:

Press MUTING to mute the sound through all

speakers and headphones connected.

"MUTING" appears on the display and the

volume turns off (the volume level indicator goes

off).

To restore the sound, press MUTING again so that "OFF" appears

on the display.

• Turning MASTER VOLUME on the front panel or pressing
VOLUME +/- on the remote control also restores the sound.

Dec 22, 2010 | JVC RX-778V

1 Answer

Volume really low, even when turned right up


So the speakers and the individual amp channels work so that lets out the obvious big hardware items.

This is starting to sound like an obscure setting was set or changed by mistake.

It would be nice to figure out what that is/was in case it happens again but you may eventually have to resort to resetting the receiver to factory defaults and start over by holding the1/0 button for 5 seconds.

Mar 04, 2010 | Sony STR-DE875 Receiver

1 Answer

Sound cuts out


No, this sounds like a speaker problem to me.
It sounds like the voice coils in your speaker(s) have been fried.
What happens is the part that is burnt does not funtion, but as you increase the volume/voltage the speaker "jumps" foward to a section of voice coil that is not as damaged.
Check your speakers!

Sep 07, 2009 | Pioneer VSX-816-K/S Receiver

1 Answer

NO SOUND


Try cleaning the eye with rubbing alcohol and a "Q" tip.

Jun 26, 2009 | Yamaha HTR-6160 Receiver

1 Answer

Sound problem


Try cleaning the volume control with an electronics switch cleaner spray. If that does not resolve the problem and it seems to happen at low volumes more than load volumes, then the output relay needs to be replaced. Keep us posted. Dan

Jun 12, 2009 | Kenwood Audio & Video Receivers

1 Answer

Center Channel Low Volume, Tighten Jacks worked for about a week.


Reseated connections inside Amp. so far center channel is working, also plan to replace banana plugs used to connect speaker wires to Amp.

Jan 22, 2009 | NAD T742 Receiver

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