Hello,

I now have success, so many thanks to those who have pointed me in the right direction.

Solution was resetting the HD621 input Properties Dialogue associated with my Sat box. I think this was "Re-Set to LPCM DD 5.1 etc".

There has been an improvement in sound quality and sound has appeared on On Demand players.

Thanks again


Geoff

System 1. AVI S21 amplifier, Meridian 504 tuner, Meridian 218 zone controller, ATC SCM35 passive speakers.
System 2. HUMAX Freesat Foxsat receiver, Pioneer PDP427XD Plasma TV, UHD722,Apple TV, G61RSL, AC12, DSP3300 centre, 2 X DSP5000 96/24 Smileys.