I have a Denon 2805 and Denon 1803 receiver and I'm trying to connect them (so I can have two receivers in two rooms but play music simultaneously in both rooms when I want to).

I tried connecting the Optical Out from the Denon 1803 to one of the Optical In sources on the Denon 2805, but the 2805 isn't putting any sound out. This was with the Denon 1803 just acting as a Tuner, which (I think) should produce a signal on the Optical Out line for things like Minidisc recording.

Any suggestions? Is there something special I hafta do to get a receiver to send a signal on out on its Optical Out line? Are all sources put into the 1803 receiver automatically sent to the Optical Out line, or just certain ones (the manual confused me on this point)?

Thanks in advance.