Operating instructions

C-2
The card also contains the controls for selecting the format of the film to
be shown or for selecting background music etc.
Cat. No. 515 Stereo Surround Card
The Cat. No. 515 is a small board that is mounted on the Cat. No. 511
main board when stereo surround operation is desired.
Cat. No. 222 Module
This module provides two channels of Dolby A-type noise reduction for
the soundtracks.
Cat. No. 222 SR/A Module
This module provides two channels of either Dolby A-type noise
reduction or Dolby SR processing for the soundtracks.