No sound through the speakers...

Hi,

I bought HT-R508. I spent nearly two days to try to get the sound through speakers. I still couldn’t get a sound from my ps3.

Actually I tried nearly every solution that I could do and tried troubleshooting through the manual. But I think I am missing the point at DTS settings. I am able to see the picture from ps3 1080p with no trouble. I can hear the sound from my tv through amplifier aswell. But no sound from my speakers. Also my speakers are all correctly connected because I am able to listen to my I pod through the onkyo amplifier..

My connections are:

1. hdmi cable from tv to onkyo hdmi out.
2. hdmi cable from ps3 out to onkyo hdmi in 1
3. digital optical cable from ps3 to onkyo digital optical in1 (i did this just incase also tried it with out aswell)

The dvd which plays in ps3 is DTS feature. I also did the sounds setting from the dvd menu to DTS 5.1 and also tried 5.1 doulby digital aswell.

I also did my auto microphone settings and didn’t have any problem.

I am looking forward to hear a advice from you,

Thank you vey much,