Question about NAD C370 2-Channel Amplifier

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How to replace internal fuse for nad 370 amp

No power no lights checked power suppy and plug fuse

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: NAD 370

Hi There is no circuit breakers inside. close to front panel on a left side under plastic cover is fuse (AGC type) . Before you change fuse look at four filter capacitors in the middle of unit!!! (close to power transformer on pcb) If they are white do not change the fuse and get unit to good service center( it must be someone who knows what they doing!!!) If the caps are different color (black ,purple) you can try to change fuse. Once again if capacitors are white do not use unit-fire hazard!!!! I'm long time service guy for NAD so trust me on this one Dariusz  dariusz70@verizon.net

Posted on Feb 13, 2008

petraman7
  • 1175 Answers

SOURCE: NAD C270 amp won't switch from red power/protection to green.

The AH may denote "slo-blo" style as opposed to Fast-acting
A fast-acting fuse will look like a single strand of wire ( maybe wiggly looking) ..A Slo-blo will have an element in it and a spring

Posted on Apr 11, 2009

Grubhead
  • 5011 Answers

SOURCE: my nad amp wont turn on - i've checked plug fuse so it must be something inside - was told it might not be worth fixing but i wuld like toknow what it is so i can at least decide. it's only 2 years ol

Yes it could be the internal fuse. If your lucky it might have just failed on it's own!

Posted on Jun 02, 2009

Grubhead
  • 5011 Answers

SOURCE: nad c 370 no power

You need to look inside. There will be a fuse inside too. If your lucky it will restore the amp once replaced, but if it blows again you have a fault. You can track it down yourself if your any good, you might even see a burnt out part when looking for that fuse, otherwise get the repairman in.

Posted on Sep 25, 2009

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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

NAD Electronics 7020e 4A fuse keeps blowing on power up


Well you are on the right course. I suspect you think the problem is in the power supply and it's probably not. I think that what's gone is either a transistor (or more) or an IC amp - if it uses one - on the main power amp stage. Look at the devices on the heat sink. I think that's where you will find your shorted device.

Nov 28, 2012 | Audio Players & Recorders

1 Answer

Completely dead NAD M15, is there an internal fuse that I can change ?


NAD M15

Problem : Dead


Possible solution : Check for Power Supply

How to Test a Transformer: 7 steps - wikiHow


If these has been done,


• Check amp power supply and low voltage regulators

These includes fuses ( many of them )



Tech Center tells you how to use a multimeter .

• There could be other electronic components but try on them first.


If the torroidal transformer is OK , then it could be a problem on the

Circuit boards.

There could be a shorted components somewhere.

Jul 29, 2012 | Audio Players & Recorders

1 Answer

No power at all


im guessing you have opened up the case of the amplifer

look in the area where the ac plug plugs into the box.

you may have to remove some of the boards to get to it

the main internal fuse should be next to the place where you attach the ac plug

also check the main wire wires that go into the main board from the power supply check for voltage

May 11, 2010 | NAD C370 2-Channel Amplifier

1 Answer

Nad c 370 no power


You need to look inside. There will be a fuse inside too. If your lucky it will restore the amp once replaced, but if it blows again you have a fault. You can track it down yourself if your any good, you might even see a burnt out part when looking for that fuse, otherwise get the repairman in.

Sep 20, 2009 | NAD C370 2-Channel Amplifier

1 Answer

No power at all on NAD C370


User manual here
http://nadelectronics.com/img/manual/NAD-C370.pdf

Read page nine for some simple troubleshooting tips and see if that helps.

It *could* be a fuse but given you've owned it for a while and NAD amps often have capacitor issues in the power supply, chances are it needs some serious work by a good tech. Contact NAD directly and see what they recommend.

Dec 29, 2008 | NAD C370 2-Channel Amplifier

2 Answers

HELP PLEASE. NAD 370 JUST DIED...


This could be as simple as a bad connection at the voltage regulator IC or blown output transistors. If you have a multimeter and some experience with electronics repair, this should be fairly straightforward.

Let me know and I'll try to walk you throught the repair.
Dan

Sep 07, 2008 | NAD C370 2-Channel Amplifier

2 Answers

Nad amp failure


Check fuses mounted near transformer . If blown check output transistor. Also check transistor transistors on small heat sink . they will cause fuse to blow.

Mar 10, 2008 | NAD C350 2-Channel Amplifier

3 Answers

NAD 370


try to re-set mini circuit breaker inside.

Jan 21, 2008 | NAD C370 2-Channel Amplifier

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