NAD C370 fail

Mario Leite · 11th February 2012, 08:11 PM

Hello
I have a NAD C370 amp and i like it a lot but, a couple off months ago it started to fail. When i turn it on, i only have sound from the left speaker. The right speaker only connects after 3 to 4 min.
Does anybody has a clue on this one?

Thanks
Mário

Bill_P · 11th February 2012, 08:35 PM

It could be a bad output relay. If you are using speaker A outputs, try moving the speaker wires to the B output posts. Select speaker B from the front panel and see if it still has a problem with the right channel.

Mario Leite · 13th February 2012, 03:50 PM

Hey hello Bill
Thanks for your answer.
I´ve tried that but the problem is still the same. It cuts both right channels ( A and B outputs)
Does the protection circuit has anything to do with this? Is there any common failure in any component?
Thanks a lot
Mário

Bill_P · 13th February 2012, 04:48 PM

The protection circuit should affect both channels.

You can get a C370 service manual at ElektroTanya | Service manuals and repair tips for electronics experts

For protection circuit repair see pithed.org NAD C370 protection circuit repair (amp fails, goes into protection mode)

11th February 2012, 08:11 PM	#1
Mario Leite diyAudio Member Join Date: Feb 2012	NAD C370 fail Hello I have a NAD C370 amp and i like it a lot but, a couple off months ago it started to fail. When i turn it on, i only have sound from the left speaker. The right speaker only connects after 3 to 4 min. Does anybody has a clue on this one? Thanks Mário

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11th February 2012, 08:35 PM	#2
Bill_P diyAudio Member Join Date: Sep 2009 Location: New York, the vampire state	It could be a bad output relay. If you are using speaker A outputs, try moving the speaker wires to the B output posts. Select speaker B from the front panel and see if it still has a problem with the right channel.

13th February 2012, 03:50 PM	#3
Mario Leite diyAudio Member Join Date: Feb 2012	Hey hello Bill Thanks for your answer. I´ve tried that but the problem is still the same. It cuts both right channels ( A and B outputs) Does the protection circuit has anything to do with this? Is there any common failure in any component? Thanks a lot Mário

13th February 2012, 04:48 PM	#4
Bill_P diyAudio Member Join Date: Sep 2009 Location: New York, the vampire state	The protection circuit should affect both channels. You can get a C370 service manual at ElektroTanya \| Service manuals and repair tips for electronics experts For protection circuit repair see pithed.org NAD C370 protection circuit repair (amp fails, goes into protection mode)

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