I have Marantz NR1710 and no sound when first turned on. I have to turn the receiver off then back on to have sound to go through it. I have a cable box hooked up to it and an apple tv. Problem is everything is off, and when I go to turn on the cable box everything turns on. The box, receiver and tv, but no sound. I have to turn off the receiver and then turn back on and sound comes out. Can anybody help? I have read the manual over and over but nothing found.