Bose OC-1 AWCS-II Service Manual download pdf (Page 14)

-18

SER. NO. D.O.M.

CH 1

INPUT LEVEL

–10 +4

INPUT

CH 2

INPUT LEVEL

–10 +4

MODE

PROTECTED BY U.S. PATENT 3,038,964

HIGH FREQ OUTPUT

CH 1 CH 2

LOW FREQ

LEVEL

BOSE CORPORATION, FRAMINGHAM, MA 01701-9168

ENGINEERED AND MANUFACTURED IN U.S.A.

OUTPUT MODE

NORM SUM

LOW FREQ OUTPUT

CH 1 CH 2

230V

AC

50/60Hz 12W

COMMERCIAL 

SOUND 

EQUIPMENT

LISTED 411F

+– +–+– +–+– +–

Figure 17. Typical Controller Back Panel (Barrier Strip Version Shown)

Mode

switch

Bass mono

sum switch

Low frequency

output

connectors

High frequency

output

connectors

Bass level

control

Figure 16. Unbalanced Connections

Output Connections

Input Connections

Input

connectors

Input

attenuator

switches

Audio

Oscillator

Audio

Oscillator

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 20 21 22

OC-1 AWCS-II Option Card 1
TABLE OF CONTENTS 2
OC-1 SPECIFICATIONS 3
THEORY OF OPERATION 4
Figure 1. High Frequency EQ 6
Figure 2. EQA + EQB 6
Figure 3. EQA + EQB + EQC 7
Figure 6. OC-1 Block Diagram 9
OC-1 Installation Procedures 10
OC-1 Test Procedures 13
Output Connections 14
Input Connections 14
Notes for Future Reference 16
OC-1 Option Card Parts List 17
External Protection 18
Internal Protection 18
Circuit Harness 18
OC-1 Electrical Parts List 19
Resistors (Continued) 20
Integrated Circuits 20
Connectors 20
Capacitors 21
Bose Corporation 22
The Mountain 22

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Bose OC-1 AWCS-II Service Manual Page 14

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