Need to get my Samsung smart TV to connect and play picture and sound from my Pioneer XVDV55 DVD surround sound system. I have one optical toslink connected. Pioneer responds and is working but no sound or picture on the TV. Not sure what settings to change on TV or on Pioneer and if I need another connection between them set up? Really want to use my Pioneer system for TV sound and all DVD and music CDs sound instead of TV speakers. This isn't my area of expertise. Once connected I can program it fine. Please help, Samsung TV is UN50MU6300F