harmonkardon AVR 130, no sound

[Steve1]

I have a new
harmonkardon AVR 130,
harmonkardon DVD 22
Infinity HSC surround

Cable: Scart
I have visual but no audio.
On the AVR 130 I have indicators for l/R but no rear or centre
(all speakers are via the AVR 130)

Help appreciated after two days lying on the floor behind the system.

 

[Lincoln]

How is the source components hooked up to the AVR (analog RCAs, Toslink, or Digital Coax). DO other sources work, does AM/FM work???