Hello All,\nI post this first entreaty battered and broken. I’ve tried everything to solve the problem of why I’m only able to play sound from LCF speakers (Apple TV or Cable Box via aSony tv\/Pioneer VSX-LX503) and nothing from my surrounds or sub. When I run the initial setup of the receiver, calibration tones are loud and clear, but nothing comes through when playing source output. I’ve checked the tv settings and the receiver settings according to the manuals, with no results. If this problem sounds familiar and you have a possible solution, I’d certainly welcome your input! Thanks.