Installation manual

Dolby
®
Model CP650 Installation Manual Back Panel Connectors
B-2
Option Card I/O Connector
The pinout of this connector is determined by the type of option board installed in the
connectors of the Cat. No. 774A system controller board.
In a standard CP650, the Cat. No. 790 Dolby Digital Surround EX Decoder/Digital
Input Board is shipped in this location (Cat. No. 794 on earlier units). Output signals
for the surround channels appear on this connector. The digital input pins can be
connected to devices incorporating S/PDIF digital outputs. Format 80 or 88 enables
this input.
Table B–2 Option Card I/O Connector Pinout with Cat. Nos. 790, 791, or 794 Installed
Pin
Signal with
Cat. No. 790 Installed
Additional Outputs with
Cat. No. 791 Crossover
Installed
Signal with Earlier
Cat. No. 794
Installed
1
S/PDIF 1 (L/R) Input +
AES/EBU Input –
S/PDIF Gnd
2
S/PDIF 2 (C/SW) Input +
AES/EBU Input +
S/PDIF Input +
3 Back Surround Left – Back Surround Left –
4 n.c.* Center mid + n.c.
5 n.c. Center high + n.c.
6 Back Surround Right – Back Surround Right –
7 Gnd – digital inputs
See Note
n.c.
8 n.c. Right high + n.c.
9 n.c. Right mid + [Right Extra +**] Chassis Gnd
10 Left Surround – Left Surround –
11 Right Surround – Right Surround –
12 n.c. Left high – n.c.
13 S/PDIF 3 (Ls/Rs) Input + n.c.
14 n.c. Left mid + [Left Extra +**] n.c.
15 n.c. Left mid – [Left Extra –**] Chassis Gnd
16 Back Surround Left + Back Surround Left +
17 n.c. Center high – n.c.
18 n.c. Center mid – Chassis Gnd
19 Back Surround Right + Back Surround Right +
20 n.c. Right high – n.c.
21 S/PDIF 4 (Bsl/Bsr) Input + n.c.
22 n.c. Right mid – [Right Extra –**] Chassis Gnd
23 Left Surround + Left Surround +
24 Right Surround + Right Surround +
25 n.c. Left high + n.c.
* No connection.
** Available only when system is configured as a two-way crossover and Le/Re mode is enabled.
Note: The screen (shield) of all analog output connections must be connected to the shell of the
D-connector.