Philips CCS 800 Service Manual page 40

12.1 Block diagram CPSU
LBB3310/00 Central Control Unit CCS800
Microphone in
(balanced)
Line in
Recorder in
Telephone in
Insertion in
Trunk 1
Audio distribution
Audio contribution
Control 2
Control 1
Supply Positive
Supply negative
Ground
LBB 3310/00, 3330/00 and 3331/00
4822 861 11006
P12
Microphone gain
L
R
Rec. gain
3
1
5
4
6
7
Mode
2
Mains
Insertion on/off
Lim
Volume
Volume
contribution units
Monitor
Power
Supply
Mains switch
page: 38
SERVICE MANUAL
Telephone out
Line out
L
Recorder out
R
Insertion out
Headphone
Trunk 2
3
Audio distribution
1
Audio contribution
5
Control 2
4
Control 1
6
Supply positive
7
Supply negative
2
Ground
Date of issue:
July 1998