Question about NAD C350 2-Channel Amplifier

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Nad C350 schematic or service manual required

Can you please tell me where I can obtain a service manual or schematic
for the C350.

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  • Stratos M Jan 28, 2009

    Hi! I have the c350 model and the small transformer in the power supply (mounted on the back) has failed. Could you tell me the specs of the transformer so I can replace it?
    Thank you in advance

  • merlyn105 Mar 30, 2009

    Dan,
    I have a problem with my C350. I get a red power light after a few seconds of powering up the amp. Initially after a couple of hours this light would go green and the amp word work fine. However now the light just stays red constantly. I think its a problem with the protection circuit. I've found some info about the C370, but its a different layout. Any ideas?
    Thanks in advance


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  • Master
  • 4,234 Answers

I don't know of the availability of the schematics outside of service centers. Is there a specific problem? I have access to the service manuals but can not by contract send them out.
Dan

Posted on Jul 15, 2008

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2 Answers

Nad C350 2 channel Amp continually in protection mode


That could indeed be the issue, but you must check your speakers, wiring, and also the oupt stages for problems. Maybe the prtection circuits are actually doing their job. lol

Hope that helps...

Geno

Apr 02, 2008 | Audio Players & Recorders

1 Answer

NAD C350, everything works after i replaced many blown parts except it has no sound output from any channel, just need some ideas on what to check for faults. thanks


With no background on the original problem and no details regarding what parts were replaced how can anyone answer the question?

What exactly does it mean if 'everything works' but it has 'no sound output'? As a two channel amp that would be its ONLY function.

The root cause for 'no sound' could be something as simple as a misplaced control (Tape Monitor?) or missing pre-out/main in links. It's in the manual.

Register and download it for free at retrevo.com

http://www.retrevo.com/support/NAD-C350-Amps-manual/id/8043dj589/t/2/

Jun 01, 2011 | NAD C350 2-Channel Amplifier

1 Answer

No power in NAD c350


Hi...

Have you checked the rectifier diodes / bridge rectifier . Most DMMs have setting where you can test for forward voltage drop on a diode
0.300- 0.800v depending on the type. If it reads nothing , swap the meter leads.
Also check the leads coming from the power transformer and see if there's continuity. THey will read low value ohms

Apr 26, 2009 | NAD C350 2-Channel Amplifier

1 Answer

Nad c350 no power at all


check your output stage for bad speakers cable or bare wire of cable touch the body of amp----short circuit speaker cable----bad speaker it self------ bad input cable or defective input device .
disconnect all and check if it is ok---start to connect one by one from input to outputs------if all above failed you must contact service center for help.

Aug 22, 2008 | NAD C320 2-Channel Amplifier

1 Answer

NAD C 340


Power surges and lightening can reak havoc. It may just need fuse replacement

Apr 12, 2008 | NAD C350 2-Channel Amplifier

1 Answer

NAD C350 stuck on "auxiliary" input


hey,

I have noticed that this nad c3xx series may have a general problem with the input switching chip. There are more post here on fixya where people have similar problems as you have.

For a few year ago, I repaired a fault that had close to the same symptoms, it was a cambridge azur xxx amplifier, in this cambridge it was a defect smd component that they used as a input multiplexer.

I look forward to repair this fault in the future. Nowadays i alway collect schematics and create repair e-books and/or repair movie guides in the fault finding process.

You can check out http://www.miguelovitch.dk

;) /michael

Dec 21, 2007 | NAD C350 2-Channel Amplifier

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