Bose OC-1 AWCS-II- User Manual

Page 2 - TABLE OF CONTENTS; PROPRIETARY INFORMATION

1 TABLE OF CONTENTS 1. SPECIFICATIONS.................................................................................................... 2 2. THEORY OF OPERATION....................................................................................... 3 3. EQ CURVES.......................................

Page 3 - Input Impedance:; Vrms into 10 k; Crossover Frequency:

OC-1 SPECIFICATIONS Dimensions: .63" Hx1.29"Wx8.98"D(1.6x3.3x22.8 cm) Weight: .09 lbs. (.042 kg.) Input/Output: 2 audio inputs,Channel 1 and 2 highfrequency outputs, bass channnel output Input Impedance: 482 k Ω (nominal) (feedback input) Output Level: 5.0 Vrms into 10 k Ω Crossover Freq...

Page 4 - THEORY OF OPERATION; Overview; II controllers. The

3 THEORY OF OPERATION Overview The OC-1 is a small plug-in module for use with Bose 502™, 402™, and 802 ® II controllers. The OC-1 allows the use of the Cannon™ bass loudspeaker with these controllers and theirloudspeakers. Refer to the block diagram, equalization curves and OC-1 schematic for furth...

Page 6 - Figure 1. High Frequency EQ; Output is measured from U5 pin 14. Controls are set as in Figure 1.

5 Output is measured from U3 pin 7 or U6 pin 1. Controls are set at:: Mode 4 (Option),Output Mode: Normal, Low Frequency Level: 0 dB, and Input Level: +4 dB. Figure 1. High Frequency EQ Output is measured from U5 pin 14. Controls are set as in Figure 1. Figure 2. EQA + EQB

Page 8 - Output is measured from U3 pin 1. Controls are set as in Figure 1.

7 Output is measured from U3 pin 1. Controls are set as in Figure 1. Figure 5. EQA + EQB + EQC + EQD + VCA

Page 10 - OC-1 Installation Procedures; Figure 8. Cover and screw removal

1. Installing the Internal Protection CircuitHarness A. Turn the controller so that its rear panelfaces you. See Figure 8. B. Remove 4 phillips-head screws. C. Slide the cover towards you and lift awayfrom the controller. D. Find the plastic plug in the controller'srear panel (Figure 9). Pinch the t...

Page 11 - Flat side of barrel

10 E. Remove the lock nut and washer from theharness (Figure 10A). F. Thread the harness through the rearpanel (white connector first). G. Turn the barrel connector so that its flatside matches the flat side of the hole in thecontroller. The connector should sit firmlyagainst the outside of the rear...

Page 13 - Test Setup; • Mode switch should be set at 4 (Option); dB

Test Setup Input Connections: Connect an oscillator to thepositive (+) and negative (-) input terminals forChannels 1 or 2. These procedures assume thatthe person performing these tests is using testequipment with unbalanced inputs and outputs.See Figure 16 for connection information. Also,refer to ...

Page 14 - Figure 16. Unbalanced Connections; Output Connections; Audio

0 . . . . . . . +3 -18 SER. NO. D.O.M. CH 1 INPUT LEVEL –10 +4 INPUT CH 2 INPUT LEVEL –10 +4 MODE 4 1 2 3 PROTECTED BY U.S. PATENT 3,038,964 HIGH FREQ OUTPUT CH 1 CH 2 LOW FREQ LEVEL BOSE CORPORATION, FRAMINGHAM, MA 01701-9168ENGINEERED AND MANUFACTURED IN U.S.A. OUTPUT MODE NORM SUM LOW FREQ OUTPUT...

Page 15 - Frequency Response of LF Output; REF; Protection Circuit Test

2. Frequency Response of LF Output A. Apply a 100 mVrms, 80 Hz signal to thecontroller's input terminals and referenceyour dB meter to this frequency. B. Measure the frequency response across theLF outputs according to the chart below. Frequency (Hz) Response (dB) 20 -10.5 ± 1.5 50 +2.25 ± 1.5 80 RE...

Page 16 - Notes for Future Reference

Page 17 - OC-1 Option Card Parts List; NOTES

16 OC-1 Option Card Parts List Item Number Description Part Number Qty. Per Carton See Note 1 Cable Assembly 174147 1 1 2 Option Card PCB Assembly 145610 1 2,3 - Bag-Antistatic 174138 1 4 - Card-Owner's Registration 122157 1 4 - Envelope 122785 1 4 - Owner's Manual 176007 1 4 - Carton 145618 N/A 4 O...

Page 18 - Figure 16. Option Card and Cable Assembly

17 Option Card (2) Cable Assembly (1) Internal Protection Circuit Harness External Protection Circuit Harness Figure 16. Option Card and Cable Assembly

Page 19 - Resistors; OC-1 Electrical Parts List; Reference

18 Resistors OC-1 Electrical Parts List Reference Designator Description Part Number See Note R1-4 475 K Ω ,1%,1/4W, 52mm,MF 121245-2214753 R6,7,41,75,76 7.5 k Ω ,1%, 1/10W,0805 133625-7501 R8,39 100 Ω ,1%, 1/10W,0805 133625-1000 R9,10,12,14 200 k Ω ,5%, 1/10W,0805 133626-2045 R11,17 1 M Ω ,5%,1/10W...

Page 21 - Capacitors

20 Capacitors Reference Designator Description Part Number See Note C1,2,57 3300 pF,10%,50V,X7R,0805 133623-332 C3 100 µ F,20%,25V, 105,Electrolytic 120767 C4,7,13,27,28 10 µ F,20%,16V, 105,Electrolytic 137126-100 C5,6,8,9,18,19,23-26,38,39,59 .022 µ F,10%, 50V, X7R,0805 133623-223 C10 22 µ F,20%,25...

Page 22 - SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose CorporationThe MountainFramingham, Massachusetts USA 01701 P/N 174786 6/94: REV.0 FOR TECHNICAL ASSISTANCE OR PARTS ORDERING,CALL 800-367-4008 ®

Bose OC-1 AWCS-II- User Manual

Table of Contents:

Summary

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