I have a Pioneer 563A DVD player hooked into my Onkyo SR601 receiver with digital coax. My sub goes right to the receiver and the component video cables direct to the RPTV input 1. Didn't really notice it at first but I set everything up with my S&V cal disc and all seemed well. I do about 80/20 movies/music. When I played any CD I don't have any sound from the sub. Setup always worked OK and great with any DVD but not CDs. I went through the menus and setups on both the receiver and the DVD player but I'm stumped??? Any help?