My nad C320 clicks off within seconds of switch on.Standby red light goes out.Power supply seems fine 39V on base and emitter of each of the 4 large heat sinked transistors.No voltage at collectors.Transistors read ok on meter.
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yes send it back chances are there could still be a warranty on it and that should be covered by it dont mess with it that could invalidate the warranty even if its not in warranty to replace the switch wont cost much.As for the contact cleaner be careful it is flamable and an arcing power button could ignite it do this with the unit unplugged but also make sure its dry after too do not do this unless you find the warranty has expired. Hope this helps
It sounds like the CD player is going into standby mode. When this happens it is usually a power supply issue. Look for bad capacitors or solder joints in the power supply. If you don't know what a bad cap or solder joint looks like, take it to a NAD repair shop.
check your output stage for bad speakers cable or bare wire of cable touch the body of amp----short circuit speaker cable----bad speaker it self------ bad input cable or defective input device . disconnect all and check if it is ok---start to connect one by one from input to outputs------if all above failed you must contact service center for help.
Both units have a problem with the output section. In case 1, the outputs are likely to be shorted. In case 2, the outputs are open. The low level and distortion come from you driving the speakers with the driver section of the amp. Both units will need to see a service provider.