My set-up is as follows dvd player to tv with dvi(video signal) and fibre optic cable for(audio).AVR is now set in dvd in fibre optic.Then my cd player is set to coax but in coax1.Then my digital cable box is set up with video comp cables (green,blue,red cable) into AVR then another comp cable to tv and coax into AVR for sound and input set to coax 2.Point is you must label or direct you toys to proper setting.