Hi, Jeff.
First off, it's not the HDMI cables (just like you figured), so don't worry about buying new ones.
Quick question - what sound mode is the receiver set to? That's not meant to be patronizing at all, and I know that you own a similar Pioneer. If the receiver is set to stereo, though, it will only play in that mode regardless of the input source. Try setting it to "Direct" and see what happens, if you haven't tried that already.
LOL...no thanks for being patronizing....because you were right. Well to be more clear, I really, really thought I had pushed the right button on the remote. But to explain in more detail, perhaps for others, there is a button on the remote -
Auto/Direct - and on my 822 receiver if I push this I would hear the source in surround automatically - on the 521 in my current situation this was not working. I also pushed the other nearby buttons but with one in particular marked
ALC/Standard I did not realize would keep cycling through different Surround Encoders if you kept pushing it. I guess I had only been pushing it once, seeing it say "Stereo" and hearing the sound in stereo and thinking "ok that's not the right button."
So again, pushing the
ALC/Standard button repeatedly cycles through different surround formats.
Your suggestion at first seemed to me like "sigh, of course I've already done that!" But since you suggested it I decided "ok I'll try it again" and this time I got it to work....LOL.....user error!
Thanks for your reply, cause honestly I probably would have given up if you hadn't replied and made me think I should just try it again!
I knew it couldn't be the cables....that made no sense!
-Jeff