Power Amplifier NAD 214 - diyAudio
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Old 23rd May 2007, 01:02 PM   #1
diyAudio Member
Join Date: May 2007
Question Power Amplifier NAD 214

Hello all,

I search for the technical datasheet of my power amplifier NAD 214.
Since last week, I have a problem with the amplifier. The front LED is always turn in red color instead of green color. I don't know where could be the problem ?
I checked the 4 big output capacitor but they seems to be good.

I have no output sound....

Perhaps one of us could help me ?

Thanks for your support
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Old 23rd May 2007, 01:43 PM   #2
jaycee is offline jaycee  United Kingdom
diyAudio Member
Join Date: Apr 2004
Location: Norwich, UK
The amplifier is in PROTECT mode. Disconnect your speakers and see if it works normally. If not, then the amplifier requires repair.

If it works normally after disconnecting your speakers, check there were no short circuits on the speaker terminals, and check no wires are damaged.
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Old 27th May 2007, 11:16 PM   #3
diyAudio Member
Join Date: May 2007
Thanks for your support !

I tried but the result is the same....the red L.E.D is turn on

I tried to call to a repair center but the price is very expensive to repair it Depends of the faulty units, the price is about 150 to 250 euros !

Regards - Thomas
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Old 28th May 2007, 06:46 AM   #4
big jim is offline big jim  England
diyAudio Member
Join Date: Feb 2006
Location: london
email me and i will send you a circuit for the
nad 214

all the best jim
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Old 31st May 2007, 04:12 PM   #5
diyAudio Member
Join Date: May 2007
Default Response for Jim

Hello Jim,

Thanks for your Help

I cannot currently send emails to other members because my account is under moderation said the website

Could you please contact me at this email address in order to reply you asap : thomas.mangeon@hotmail.fr

Thanks and best Regards,
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Old 14th June 2007, 10:17 PM   #6
diyAudio Member
Join Date: May 2007
Default always searching

thanks Jim but the schematics you sent me was not the good one...

you sent me schematics for NAD 2140 amplifier and mine is NAD 214. The reference of the units between the printed circuit board of my amplifier and the schematics are not the same.

if someone have the schematics (technical datasheet) for NAD 214 amplifier....thanks to send me a copy.
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