Amino Kamai 7B STB hookup
I have a Yamaha RX-V1081 AV amp and just purchased fibre optics TV. The technician brought a Amino Kamai 7B STB. I did not have my Yamaha surround sound when he came so we just used the HDMI direct from STB to TV and no issues.
When I try to use it to one of my inputs on the AV amp (HDMI) I cannot get video, just audio?
Not much of a manual with the Kamai 7B and it shows using a optical S/PDIF cable if connecting to a A/V amp or home cinema system. I don't understand because HDMI is much better than the optical but it will not work.
Any help/direction would be greatly appreciated on this frustrating matter.