Marantz 7007- amp not functioning

I have a marantz SR-7007 which is about four years old. Noticed that all functions work except I’m not getting any sound from any speaker.  Normally when you turn the unit on after a few seconds there is a noticeable “click” which I assume is some relay to the amplifier section.  Right now I don’t hear that click happening thus either something in the amp is fried or the signal to turn it on isn’t working. Again it turns on, switches inputs, hdmi pass through functions when off.  Just appears to be something with the amplifier section. Is there a standard process anyone can recommend to diagnose? I’ve yet to go through every single input and literally test everything and I’m going to try a power cycle tonight to see if that does anything but I have a sense it’s something with the amp.