Hello,
During the last weeks, my NAD 302 Amp started to make a short "hiss" on one channel at power on. Randomly after that, that specific channel can work properly or can be totally muted.
Before opening the amp and changing the old caps, I'm trying to find its schematic diagram and its service manual (for free) without success. Can you help me in finding them?
Thank you in advance
Best Regards
Panino