Looking for NAD C350 schematic or servicemanual

Hi Guys,
I have the exact same problem as Max Roach, a couple of years back: using the C350 as a preamp, one channel went dead. Same issue with the earphone output. I believe it is due to a faulty capacitor but how to make sure? I presume the service manual would help to fix this...
Thanks!
 
Thanks a lot for schematic.

Without that, I'm very sure I would have a silent NAD...

Now it works again, there was plenty of broken components, corroded resistors, relay and so on. There was some blown capasitors on power unit about 5 years ago, and i was wondering was the electrolyte causing that..?