Question about NAD C372 Amplifier

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No power Hi,Listening to music yesturday and all went quite, I went over to my NAD system and the AMP was swithched off! it wont switch back on again & the CD player is fine - confussed...Thanks..

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Unplug for 20 min. and then plug in to try and see if it will come back on.

Posted on Dec 01, 2007

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Lets try the simple stuff first. This whole problem could be caused by a dirty switch contact. Pick up some electronics cleaner from a local electronics shop and spray the switch (from the inside of the unit). Work the switch on/off a number of times then respray one more time. That should clean out any dirt that is there. Try the unit again and hopefully the problem is resolved. If not, then the switch itself may need to be replaced. When you get the cleaner, get one that contains a lubricant as well. This will help to prevent the problem from coming back again.

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sorry for the late reply. im using windows. im quite sure that there's no virus involved with the distortion of my sound. this is what happened.

1. im surfing the net while listening to music(full volume)
2.)then suddenly the sound gets a bit distorted(jumps,skips)
3.)then everything hangs up which forced me to reboot
4.)the windows loading screen became too long(like 5mins) before it takes me to the main desktop(start up programs loads like 48 years also).
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i tried reinstalling the drivers but nothing was fixed. i've even tried Regcure.

i just formatted my notebook and voila its back to normal.
i dunno but i think playing loud music using laptop, or in my case notebook speakers would cause this problem. im using external speakers now and i've got no problems. i just hope that there would be a fix to this problem so that i wont have to reformat if the problem occurs again

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Hi...
All the main power supply capacitors need to be replaced.
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Mar 23, 2009 | NAD Audio Players & Recorders

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Amp c352 TI 1515456 failure


It sounds like yo shorted the speaker wires together for a short time and smoked the output section of the amp. The amber light is an indication that the amp is in protect mode. If you attempt to power up the amp and still have the amber light even with all speaker wires disconnected, the amp needs repair. The output transistors for that side will need to be replaced.

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Hi, i would try flooding trhe switch with CRC 2-26 for a start. Itr may recover some contact integrity. A jerry rig solution would be to bridge the switch contacts and leave it on all the time(i leave my amps running all the time) or if as in Australia you have a switch on the wall socket use that,


OR purchase a new switch from here. Not sure how you would go through NAD, probably dont have any in stock as a spare these days.

or if that does not work out, I could get one to you through ebay. Used to be quite a common TV switch, but I also remember replacing then in Nad amps, many moons ago ;) I think I still have a one in stock myself, packed away from when I was a NAD service agent:)

regards
robotek

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Can I connect a power amp to this unit?


If your 2100ES has a selectable INPUT AND OUTPUT and if you're intending to send all signal to the power amp, i.e. not bi-wiring or using the 2100ES to run mid-range or treble then you simply send Left & Right audio (White & Red cable) from a 2100ES output, probably AUX OUT ( it doesn't really matter apart from Phono on some units) straight to the power amp on AUX IN.
We should be just dealing with audio here, so connect the NAD audio output to CD or DVD IN. Select CD or DVD IN on 2100ES input switch and switch output to AUX OUT (whatever you decided goes to the power amp) on the 2100ES. Turn power amp to AUX IN and it will now get an audio signal from the 2100ES for amplification.
Speakers connect to the power amp as a normal amp, so pos and neg etc. The 2100ES now only acts as a signal feed, the power amp does all the work.

So, summary - switch on the NAD, press play - video goes separately and audio goes to the 2100ES. Turn 2100ES to INPUT for NAD. Turn 2100ES to OUTPUT allocated for power amp. Turn INPUT on power amp to allocation for 2100ES.

Turn it up!

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