Unable to connect home theatre system to TV (No HDMI arc or Digital Output)

[RossDean]

Apologies in advance, I’m not great with technology so I’d appreciate any help. 

I have a HT-S20R home theatre system. The instructions state to connect the system to the tv using HDMI ARC (my tv doesn’t have this). It then states if there is no HDMI ARC to use the digital output cable. This also doesn’t connect to my tv.

I’m assuming I need some kind of adapter? I was just wondering if someone could help clarify what kind of adapter I need please. I appreciate any help anyone can provide!

[Marino.Manolo]

Really strange that your TV has no Audio Output, can you tell us the TV Model?