teac v8520 audio,video reciever wont power on?

Hello, I just bought a second hand reciever since my old one had an untimely death recently LOL.
So anyway, my TEAC V8520 has a faint standby light when plugged in, but nothing happenes when I push the power button. Fuses all look good. I have taken the face off and inspected both sides of that board. But I'm really not qualified to know what I'm doing. What could be the problem? Please and thank you for any help.

Diana
May 2015