[dvjlaw]

I have a Denon 3802 and I am having difficulty achieving optical audio on a recently installed upconverter DVD (Sony), I went through the system setup and designated the DVD as optical 1 and it is connected with a signal on both ends. The AVR will not recognize the digital signal. The problem may be something obvious but consulting the Denon manual is like reading ancient sanskrit.

[dvjlaw]

I cracked the sanskrit code - turn the function dial to coax/optical while in the DVD mode and push the auto button. Presto, digital signal.

[JohnRice]

The first place to check is with the optical cable. It may be damaged. So, try another one.