NAD 317 Amplifier not working - clicking noise
This is a NAD 317 which I purchased new almost fifteen years ago. A couple of weeks ago it failed to turn on and instead I heard a relay clicking noise at about 2Hz
I Opened it up and I concluded the relay clicking is the power relay.
According to the schematics that is relay RL501 right on the main power line. Looks like this relay is controlled by IC801 - port 18.
IC809 is labeled R264 and looks like it might be some sort of controller with several in/out ports and an oscillator.
Can someone help me figure out what the problem might be? My hope is that this controller is not faulty but some other signal is actually telling this controller to kill the power.
Any help would be really appreciated.