get my receiver to turn on

[bigricodaddy82]

My receiver was working fine with no problems,not shutting off,over heating,nothing... Then I come home and try to turn it on,but the screen will light up,as though it is working,but there's no sound coming from any of the speakers,I've double and triple checked all connections,please help

 

[clarkjd]

Have you checked the mute function?