How do I connect a JVC TH-BY870 to my JVC HDTV ? i

[Tania8]

Cannot get sound from TV to soundbox.
Soundbox has optical input, TV does not have this.
Earphone jack on TV to AUX on soundbox, does not work.
Coaxial point on soundbox, not sure where to connect on TV.
Both items JVC. TV about 4 years old.

 

[kanewolf]

What model is the TV? Can't look up a user manual without the model number...