You should have a dolby input (Digital audio input 2 x Coax phono, Input-1 for AV-SCART, Input-2 for V.TAPE-SCART).
Maybe a optical to coaxial converter is needed (around 20 Euro).
Ralf
My Beo: Beosound 3000, Beolab 4000, Beo 4 DVD, Beolab 5000/Beomaster 5000, Beovox S45.2 with Stands, Beosystem 7000 black with Beolink 7000, Beolink 1000, F1000 (3 cubes), Beovox 5000, Beovox 3000, Attyca 1.