Can anyone help me. I am trying to connect my PS3 to my av receiver Sony str-da1200es. The current connections are as follows: HDMI to tv. Not connected to receiver as SKY HD and dvd recorder hdmi used instead. For audio used optical cable from PS3 to receiver. I can decode 5.1 sound, but when trying to get 5.1PCM, I can only get dolby pro logic(2.1). I am sure the receiver has decoded 5.1PCM before, but can't remember how this was done. Any ideas?