Dolby Laboratories CP500-300 Operations Instructions download pdf (Page 11)

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2.3.2 Format Selection

Select the desired film soundtrack format or your non-sync source by pressing the

appropriate softkey. The LED next to the key illuminates, the text next to the

softkey is reversed (dark), and the format number appears under Current Format to

confirm that the format was selected. Common formats are as follows:

01 Mono: for all optical prints of any vintage with conventional mono

optical (“Academy”) soundtracks.

04 Dolby A-type: for Dolby releases, except those marked SR or Digital.

05 Dolby SR: for releases marked as having a Dolby SR (Spectral

Recording) soundtrack or for Dolby Digital prints if your CP500 is not

equipped with digital playback capability.

10 Dolby Digital: for Dolby Digital releases. The digital data is clearly

visible between the film perforations next to the analog sound track.

11 External 6ch: for selecting any six-channel external sound source.

(Your CP500 must be equipped with an optional Cat. No. 685 card.)

43 Dolby 70 mm split surround: for 70 mm films with 6-channel

magnetic soundtracks. (Your CP500 must be equipped with optional cards.)

60/61 non-sync1/2: for your intermission music tape or a CD player.

The film soundtrack format numbers used on the CP500 display (and also on

models CP45, CP65 and CP200) often appear on the film can and leader. If these

numbers are not supplied and you are not sure if a print is mono or stereo optical,

see Appendix A for a means to distinguish the various types of soundtracks.

2.3.3 Automatic Selection of Dolby Digital Format

CP500s equipped with versions 1.30 or later software are set up to sense the

presence of Dolby Digital data on the film and automatically switch to Dolby

Digital from any other film format. This section of the manual describes how to use

this feature.

Operation With Standard Format Screen

The Standard format control screen on the CP500 comes with Formats 01 (Mono),

04 (A-Type), and 05 (Dolby SR) set up so that auto-digital will occur from them.

These formats are marked by an “s” (for sources) on the screen.

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Dolby Laboratories CP500-300 Operations Instructions Page 11