Thank you. That was a very interesting piece of fault finding - quite a cascade of issues from that one solder bridge. Good spot with the suspiciously sized resistors too! Looking forward to seeing what happens when you run audio through in part 2.
@@EriksElectronicsWorkbench Yes ! all our best companies are bailing out, they will be back LOL! Mind you when Donald Trump gets round to his tariffs probably will be cheaper to buy NAD gear from the UK than Canada !
At 9:43 we see the soft clipping warning immediately coming on, yet no comment on it, instead 45 minutes of stuff happen until, finally, faulty components in the soft clipping circuit are identified as the source of the problem...oh man...obviously the soft-clipping shouldn't come on while there is no input signal, why didn't you focus on that right from the beginning???
The clipping indicator light only shows that the clipping feature is turned on, not that audio is actually being clipped. The indicator LED being on had no relation to the problem. The LED is switched on and off by the clipping protection switch (rear panel) and nothing else. You will see it function the same once the amp is repaired.
I have never heard NAD (New Acoustic Dimension) referred to as a word rather than the individual letters. A quick online search brings up arguments of saying it both ways with most preferring N. A. D.
It's difficult for most people to keep a suitable speed when recording themselves, especially without seeming patronizing or stupid. A few minutes is easy but for a longer time while also maintaining a line of thought makes for a challenge.
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I thoroughly enjoyed this troubleshooting session. Good video!
Thank you!
Thank you. That was a very interesting piece of fault finding - quite a cascade of issues from that one solder bridge. Good spot with the suspiciously sized resistors too! Looking forward to seeing what happens when you run audio through in part 2.
17:00 fun fact, the voltage drop from B-E is always slightly more than B-C. One way unknown transistors can be identified (at least for pinout).
So....the protection circuit section needs itself a....protection circuit section!
Very common on this modell is a´few power resistors close to the regulators on the big heatsinks.
Is there discoloration on the underside or is it just lights/reflection? (At least three areas seems suspicious to me at 34:10)
A few areas may be a bit darker near heat producing components. It happens to PCBs over time, not necessarily an indication of a problem.
Is NAD a popular brand in US ?
Dunno its English.
Yes it's well known here in the US. They are based in Canada now.
@@EriksElectronicsWorkbench Yes ! all our best companies are bailing out, they will be back LOL! Mind you when Donald Trump gets round to his tariffs probably will be cheaper to buy NAD gear from the UK than Canada !
I am going to (go ahead and) leave a comment
At 9:43 we see the soft clipping warning immediately coming on, yet no comment on it, instead 45 minutes of stuff happen until, finally, faulty components in the soft clipping circuit are identified as the source of the problem...oh man...obviously the soft-clipping shouldn't come on while there is no input signal, why didn't you focus on that right from the beginning???
The clipping indicator light only shows that the clipping feature is turned on, not that audio is actually being clipped. The indicator LED being on had no relation to the problem. The LED is switched on and off by the clipping protection switch (rear panel) and nothing else. You will see it function the same once the amp is repaired.
110 volt is a joke... we got 240 and 380 volts.. try to touch that.. then you can sing high tones !!!
I must say, Americans love the sound of thier own voice, I had to leave as soon as you said N A D and not NAD
I have never heard NAD (New Acoustic Dimension) referred to as a word rather than the individual letters. A quick online search brings up arguments of saying it both ways with most preferring N. A. D.
why are you speaking unnaturally fast? It makes the video extremely difficult to listen to.
Just put it to x0,9
Some people have a naturally high speaking cadence.
It's difficult for most people to keep a suitable speed when recording themselves, especially without seeming patronizing or stupid. A few minutes is easy but for a longer time while also maintaining a line of thought makes for a challenge.
Then don't listen to it.
Maybe you're just listening too slow.