NAD 216 issues - Page 2

Kamuy · 26th June 2007, 07:10 PM

I'm not sure if it was getting hot before, I never tested it with enough of a load to tell. However, I did notice the "idle current" trimmer on the right side is set very differently then on the left, I'm not sure if this was intentional or not. I do know that a friend of mine whom this stereo belongs to took it to a repair shop before contacting me, and they were unable to fix it.

I don't know if they would have tampered with that or not.

anatech · 26th June 2007, 07:18 PM

Hi Justin,

Quote:

I don't know if they would have tampered with that or not.

Quote:

I do know that a friend of mine whom this stereo belongs to took it to a repair shop before contacting me, and they were unable to fix it.

It most certainly has. "Struck by panicking technician". These can be the hardest to fix sometimes.

What you will need to do is go back to the simplest things and confirm everything as you go. There may be two or more faults here now.

Step #1. Identify any replacement parts. Make sure the proper ones are installed. If you see ECG or NTE - auto replace. They are garbage.

Step #2. Look for soldering where parts may possibly be installed backwards. Also check for incorrect resistor values.

You need to check and confirm the previous tech didn't make any errors or leave you any presents. Once you have gone over everything that was done before, you can start to troubleshoot your faults. Take it from someone who has made a career of repairing the unrepairable sets.

Right now, your priority is to obtain the schematics. You shouldn't do anything without them.

-Chris

Kamuy · 26th June 2007, 07:24 PM

I sent an email to NAD requesting them, since I can't find them anywhere else.

Time will tell.

anatech · 26th June 2007, 09:20 PM

Hey Justin,
How old is it?

-Chris

Kamuy · 27th June 2007, 01:43 AM

It was purchased in 1994.

anatech · 27th June 2007, 01:48 AM

Hi Justin,
Hmmm, the schematic should be out in the wild in that case ....

-Chris

Edit: I have requested your information at sharefx. I hope someone over there can help us out.

Edmond Stuart · 27th June 2007, 04:54 AM

Hi Justin,

You can buy a manual at: http://www.manuals-in-pdf.com

Regards, Edmond.

anatech · 27th June 2007, 05:03 AM

Thanks Edmond.

Now there are three avenues to explore.

-Chris

Edmond Stuart · 27th June 2007, 06:01 AM

Quote:

Originally posted by anatech
Thanks Edmond.

Now there are three avenues to explore.

-Chris

Avec plaisir.

Salutations, Edmond.

Kamuy · 27th June 2007, 11:41 PM

Strangely enough, I replaced the speaker relay and readjusted the idle current pots, and now it's working fine without any excess heat from either channel's heatsink.

I'm still skeptical though, so I'm going to keep a sharp eye on it for awhile.

Thanks so much for all the help.

26th June 2007, 09:20 PM	#14
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hey Justin, How old is it? -Chris __________________ "Just because you can, doesn't mean you should" © my Wife

27th June 2007, 01:48 AM	#16
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Justin, Hmmm, the schematic should be out in the wild in that case .... -Chris Edit: I have requested your information at sharefx. I hope someone over there can help us out. __________________ "Just because you can, doesn't mean you should" © my Wife

27th June 2007, 04:54 AM	#17
Edmond Stuart diyAudio Member Join Date: Nov 2003 Location: Amsterdam	Hi Justin, You can buy a manual at: http://www.manuals-in-pdf.com Regards, Edmond. __________________ Een volk dat voor tirannen zwicht, zal meer dan lijf en goed verliezen dan dooft het licht…(H.M. van Randwijk)

27th June 2007, 05:03 AM	#18
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Thanks Edmond. Now there are three avenues to explore. -Chris __________________ "Just because you can, doesn't mean you should" © my Wife

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26th June 2007, 07:10 PM	#11
Kamuy diyAudio Member Join Date: Jun 2007	I'm not sure if it was getting hot before, I never tested it with enough of a load to tell. However, I did notice the "idle current" trimmer on the right side is set very differently then on the left, I'm not sure if this was intentional or not. I do know that a friend of mine whom this stereo belongs to took it to a repair shop before contacting me, and they were unable to fix it. I don't know if they would have tampered with that or not.

26th June 2007, 07:24 PM	#13
Kamuy diyAudio Member Join Date: Jun 2007	I sent an email to NAD requesting them, since I can't find them anywhere else. Time will tell.

27th June 2007, 01:43 AM	#15
Kamuy diyAudio Member Join Date: Jun 2007	It was purchased in 1994.

27th June 2007, 11:41 PM	#20
Kamuy diyAudio Member Join Date: Jun 2007	Strangely enough, I replaced the speaker relay and readjusted the idle current pots, and now it's working fine without any excess heat from either channel's heatsink. I'm still skeptical though, so I'm going to keep a sharp eye on it for awhile. Thanks so much for all the help.

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