Originally Posted by khollister
I would be curious to know what happens if you leave the Audio setting on AUTO - in theory the player should switch to PCM since the AVR doesn't support the HD formats.
Just pulling the HDMI 1 connection while the AVR and Sony are on might not resolve an HDCP issue. Try shutting everything down, disconnect HDMI 1 and then fire up the Sony and HK as a test.
Okay, I did more testing and believe that it is a handshake issue.
With Separation mode on:
Powered everything down, disconnected HDMI 1 and started the S790 and the AVR to check for audio (a little tough with no video). No audio played.
Connected another cable from the AVR HDMI out to a second HDMI input on the LCD and disconnected the HDMI 1. The AVR reported that it didn't have any video signal and couldn't process further.
With Separation mode off (video and audio out of both HDMI)
Video plays on LCD, audio plays, but only as 2 channel PCM.
If I disconnect HDMI 1 from the LCD and view what is coming out of the AVR instead, then I get the proper Multi Ch PCM if I set the S790 HDMI to force PCM. If I set the S790 to Auto, then the AVR switches to Dolby Digital.
It appears that the AVR needs to see video and audio coming in and being passed out of its HDMI out to process things properly. There is a firmware update available for the AVR 247, but I'll have to see if I can dig up an RS232 cable to do that. The AVR247 threads indicate its a finicky process, but I guess it's worth a try before I look at getting a new receiver.
Let me know if anyone has other suggestions. Thanks.