Have you tried reversing the direction of the HDMI cable and is it an "e" type connection to send the audio back over the hdmi to the sound amp? To play it needs to get the sound from the HDMI, right? I know that an "e" hdmi connection is needed to return the audio from the connection to the tv back to the audio system. What is the sound picture source, the TV? Sorry if it does not make sense to me, I am not really up on HDMI.