Hi to all
I wanted to thank someone on this site for posting a fix for a NAD 2400 amp that I used to successfully repair one that had been giving me fits. I can't find the old forum today, so I'll just thank the site and it's members for their contributions that helped me when I needed it.
I'm returning to electronics after a 7 year hiatus - a retirement short lived, I'm afraid. I've contracted some work with a higher end audio retailer in Madison, WI to repair some of their "dogs" that were trade-ins. I hope this leads to bigger and better things, plus I missed the smell of solder and burnt carbon resistors!
Most of my background was in avionics bench repair and I spent nearly 30 years doing that, but I had my share of consumer based audio, television, and other electronics along the way. I've renewed my appreciation for those of you (us) who work on older equipment without complete service information such as circuit descriptions and service bulletin histories. But I digress...
Thanks again for the help! Incidentally - prior to spending a lot of time troubleshooting the protection circuit of the NAD 2400 and I imagine other NAD amps that have similar Protection, do yourselves a favor: check the idle currents and center voltage first. If that's normal and your set is intermittently going into Protection, change the electrolytic caps in the protection circuit and see what happens......