So you have two problems? First getting HDMI to work to your TV, and second getting sound from your axioms?

The HDMI will send video and audio to your TV from your Oppo, using HDMI out on your DVD to HDMI in on your TV. I would assume you may have to check your DVD menu settings and possible your TV settings to enable HDMI, not sure.

In regards to your Axioms, this is a silly question, but do you have them hooked up to your receiver speaker terminals?

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