Question about NAD C372 Amplifier

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Nad C372 no sound, red light in power switch speakers a and b are green....

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5 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 4234 Answers

SOURCE: Amp wont switch off of stand-by

Both units have a problem with the output section. In case 1, the outputs are likely to be shorted. In case 2, the outputs are open. The low level and distortion come from you driving the speakers with the driver section of the amp. Both units will need to see a service provider.
Dan

Posted on May 19, 2008

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SOURCE: nad c372 prob

The unit is detecting a problem and shutting down in what is usually called "protect" mode. Look for bad connections on the board near the voltage regulators.

Dan

Posted on Sep 09, 2008

Ganx
  • 113 Answers

SOURCE: nad c372 problem with left speaker output

Hiya, did you try to swop the inputs as well and see if the problem swops. Try that as the input could also be low. If so try change the cable.

If not there try cleaning out the balance pot with switch cleaner (have to open to that and only you are comfortable).

If thats not there then likely an internal problem and will have to send it in.
Best of luck

Posted on Jul 14, 2009

jdvillanueva
  • 2098 Answers

SOURCE: There is a distortion in

Hi,
If the distortion is also the same in the earphone jack of the unit, this is an indication that the fault was came from the unit itself. This kind of symptoms is technical and needs an experienced to isolate the fault from input circuitry, pre-amplifier stage, and in the sound output section of the unit.
The fault is caused by "Bad input cable cords", "faulty filter electrolytic capacitor" and/or bad solder joints in the said sections.
Replace/swap first the cables to ensure that the fault was not came from bad connections.
If the symptoms still persist after you've replaced the input cables, you must check bad solder joints (cracked, dried, cold solder) in the board. You should work in the brightest area or use table/portable lamp and magnifying glass because these are hard to spot. Check it also in the power supply board.
Let me know if the symptoms still persist after the above solution had been done to assist you further.
Regards,
Jdvillanueva

Posted on Jun 18, 2011

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1 Answer

My NAD C372 integrated amp was working normally everyday. One day, on pushing in the "Power On" button, it did not light up. No response at all.


It could be anything from a blown fuse from a power surge to a shorted capacitor ijn the power supply. There are fuses in all amplifiers. Locate it and test it with an ohmmeter.

Dec 16, 2013 | NAD C372 Amplifier

1 Answer

How do I connect a cd player to both a tv and an audio amplifier so Ican play either Cd's or DVDs?


Does the TV have a line audio outpot (red and white jack)? If so feed the amplifier input from there.

Dec 23, 2012 | NAD C372 Amplifier

1 Answer

How do I connect a Mirage Omni s-10 Sub Woofer and a Parasound Model 2100 Pre Amp to the NAD C372 Amplifier?


You DO realize the preamp is duplicating stuff in the Nad C372, right? This Preamps adds nothing but PHONO connectivity and control. That's why they're called "preamps".



Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/NAD-C372-Amps-manual/id/8043dj592/t/2/

http://www.retrevo.com/support/Mirage-OMNI-S10-Subwoofers-manual/id/14438ag918/t/2/


Model 2100 Picture and article:

Use the Sub Out pair on the Preamp (joined by an RCA Y-cable) for the Sub Input on the sub (duh):

http://www.hometheaterhifi.com/preamplifiers/362-a-secrets-preamplifier-and-power-amplifier-review.html?showall=1

Run RCA from the Preamp Main Out to the C372 Aux In to hear any sources attached to the preamp.

Or, if you don't NEED the preamp because you don't have a turntable,ditch the preamp and connect the sub using the speaker outputs on the NADS, according to the manual.

Mar 08, 2011 | NAD C372 Amplifier

1 Answer

I have and old NAD C 320 with all of a sudden started to produce a burning smell and smoke. It definitely was not overheating; I was not even using it at the time it was just turned on. Now onlt the red...


You'll need to take it in and have an electronics technician fix it. Sounds like it has popped a channel. Sometimes it just happens.
But you might also check your speaker wiring. Sometimes it gets frayed and shorts, which will strain the outputs and sometimes cause damage that doesn't immediately kill the output transistors.
This is not customer serviceable.
Steve Greenfield
Electronic Engineering Technician student
Electronic Technician 20+ years
CET Computers and Consumer Electronics
IPC-A-610D CIS Specialist

Feb 06, 2010 | NAD C372 Amplifier

2 Answers

Nad c372 problem with left speaker output


Hiya, did you try to swop the inputs as well and see if the problem swops. Try that as the input could also be low. If so try change the cable.

If not there try cleaning out the balance pot with switch cleaner (have to open to that and only you are comfortable).

If thats not there then likely an internal problem and will have to send it in.
Best of luck

Jul 14, 2009 | NAD C372 Amplifier

1 Answer

Right loudspeaker problem


Doesnt sound like the selector as it "sometimes" works. Redo the speaker connections on the back of the amp and speakers first. If it persists, swop the speakers and cables, if the problem swops, then it could be inside the speaker or the cable, if still the same then amp has dry joints/loose connections probably

Jun 24, 2009 | NAD C372 Amplifier

1 Answer

Nad c372 prob


The unit is detecting a problem and shutting down in what is usually called "protect" mode. Look for bad connections on the board near the voltage regulators.

Dan

Sep 05, 2008 | NAD C372 Amplifier

1 Answer

Sound through one channel


Only the right channel had a sound,the left channel is mute, whatever adjustment you did and whatever balancing you done nothigs happen,even you interchange the speakers. The problem is in the power amp. The STK IC there is busted already, it's better to change it with a new one so the performance become normal again.

Jun 14, 2008 | NAD C372 Amplifier

1 Answer

No power


Unplug for 20 min. and then plug in to try and see if it will come back on.

Nov 27, 2007 | NAD C372 Amplifier

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