I just got my frist surround sound and having problem. I have a pioneer VSX-D711, I have an olderd T.V.,no s-video input. I have an RF converter for my DVD,I have the DVD connected to the receiver with the 2 pin RCA cable and 1 pin rca cable to the RF converter. This allows me to play the dvd but, I don't get sound from my surround speakers, I do get sound from the T.V. speakers. What am I doing wrong?