I'm having trouble setting up my surround sound system. I'm trying to listen to blu ray discs through my Playstation 3. I'm using regular speaker wire and an optical cable. Its an older receiver so there are no instructions for connecting a PS3. I'm just plugging one end of the optical cable to my PS3 and the other end to the port marked "optical 1". I've tested all the speakers and they are all working. Just in case its needed my TV is a Vizio model #E3D420VX.