It shouldn't matter if you are using analog inputs, but go into the digital input assignments and turn off optical 2 for TV/CD, it's the default. You just want dashes to show in the digital assignment. Then, check HDMI assignments for TV/CD. Same thing, should be dashes. Make sure TV Audio Out setting is OFF and RIHD(HDMI-CEC) and ARC are also OFF. If you haven't already, try another analog input.