Dolby
®
Model CP650 Installation Manual
Introduction
1-3
1.3 Accessories
•
Upgrade kit UD/650, which includes the Cat. No. 773 circuit board
•
Upgrade kit UEX/650, which includes the Cat. No. 790 circuit board
•
Upgrade kit Cat. No. 735 Auditorium Assist
TM
, which includes a microphone
•
Cat. No. 771 Remote Fader
•
Cat. No. 778 Digital I/O Board, which provides up to eight channels of digital I/O
•
Cat. No. 779 Remote Control Unit
•
Upgrade Kit Cat. No. 791 Digital Crossover, which provides two-way or three-
way screen-channel crossover capability
1.4
Dolby Catalog Number Listing
Cat. No. 771
Remote Fader
Cat. No. 772A
Analog I/O and Bypass Circuit Board
Cat. No. 773
Dolby Digital Film Decoder Circuit Board
Cat. No. 774A
System Controller Circuit Board
Cat. No. 775
Backplane Board
Cat. No. 776
Power Supply Assembly
Cat. No. 777
Front-Panel Circuit Board
Cat. No. 778
Digital I/O Board
Cat. No. 779
Remote Control Unit
Cat. No. 790
Dolby Digital Surround EX
TM
Decoder with Four Digital Inputs
(this board replaces the earlier Cat. No. 794)
Cat. No. 791
Crossover Board (Cat. Nos. 773, 790, 772A, and 774A required)
Cat. No. 792
Bypass Power Regulator Circuit Board
Cat. No. 794
Dolby Digital Surround EX Decoder with Digital AES/EBU Input
Board (used in earlier CP650s; replaced by Cat. No. 790)
Cat. No. 797
Flash memory module (part of the Cat. No. 774A board)
1.5 Specifications
Signal Inputs
Optical: Balanced inputs for two projectors with stereo solar cells or analog LED
readers, digitally controlled gain and digital slit-loss EQ, power available for external
cell preamp circuits; 9-pin D-connectors
Digital film reader: Inputs for two Dolby digital soundheads; 25-pin D-connectors
Nonsync: Two stereo inputs, 21 k
Ω
, sensitivity: 0.2–4 V (NS 1),
0.06–1.5 V (NS 2); RCA-type phono connectors
Six-channel analog input: For external digital processor, 10 k
Ω
(L, R),
27 k
Ω
(C, Ls, Rs, SW), 300 mV operating level; 25-pin D-connector
