I don't have that model, but on my Denon 2805, you have to go into the setup menu, and there is a category for assigning your inputs like coax, optical, component, etc. and what source DVD, TV, VHS, your using for those connections.

They if you want DVD, you just push the DVD button on your remote, if you want CD, you push CD on your remote.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85