I just replaced my BluRay player with the Sony BDP-X700 4K player. The player is connected to my SC67 Pioneer receiver to the same inputs as my previous Sony DVD player. For some reason I'm not getting any audio through my receiver. I've tried other inputs on my receiver and to no avail. I do get sound when I connect my DVD player directly to my Samsung T.V. Is this not working because my HDMI output is connected to a non 4K projector? I'm at a loss here so I'm posting before I decide to bring the new DVD player back. I've already spent hours going through my receiver settings and the settings in the X700. What am I missing?