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Hi!
I am new to the forums and hoping for some help

I have the px5 for my xbox 360 and when I set it up, I removed the casing of the AV cable.
I have it connected by the optical to it and hd to the tv, but the sound is normal.
It sounds stereo and no 5.1 at all.
I have a sony bravia tv also and it has a output audio optical cable and I tried to hook the receiver up by that but it still is stereo.
What lights are suppose to be on for the receiver to see if I have 5.1 or not?
Thanks