Bose Acoustic Wave Cannon System II Manual de usuario

OVERVIEW

This service manual contains performance specifications, part lists and the test and repair procedures for the

Bose®Acoustic Wave®Cannon™ System II (AWCS II). The following is a brief product description.

The AWCS II is an actively equalized low frequency (25 - 125 Hz) loudspeaker system. The AWCS II

loudspeaker uses a high power 12" woofer (same as the Bose Panaray®502®B Acoustimass®bass

enclosure) which is installed into a pipe-shaped enclosure made of custom-extruded PVC plastic pipe.

The AWCS II must be used with a Bose system controller and OC-1 option card for the proper equalization

and overload protection. Refer to the ACWS II Owner's Guide for basic system configurations. Consult the

owner's guide for a specific system controller for details concerning its operation and installation.

PROPRIETARY INFORMATION

This document contains proprietary information of BOSE®Corporation which is being furnished

only for the purpose of servicing the identified BOSE product by an authorized BOSE service

center or owner of the BOSE product, and shall not be reproduced or used for any other

purpose.

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CANNON™ SYSTEM II TEST PROCEDURES

NOTES: Some of the test procedures may require the user to partially disassemble the unit. Refer to the

Disassembly/Assembly Procedures section for specific instructions.

. Woofer Rub and Tick Test

Connect a signal generator to a power amplifier. Adjust the generator frequency to 0 Hz and the amplifier

output to 5 Vrms. Connect the amplifier output to the driver's input terminals. The input terminals are

molded in the driver housing near the barrier strip. Refer to Figure .

o extraneous noises such as rubbing, scraping or ticking should be heard.

2. Air Leak Test

Plug the end the of the barrel.

Adjust the oscillator frequency to 0 Hz and the amplifier output to 5 Vrms. Apply the signal to the

positive and negative inputs of the speaker. For at least 5 seconds, listen for air leaks around the driver

basket edge, driver housing seal area, barrier strip, or the driver's dustcap and cone surround.

Repair leaks around the driver by removing the driver and replacing the gasket under the driver flange.

3. Phase Test

Set a DC power supply to 8 volts. Connect the positive (+) supply lead to the positive (+) speaker input

terminal and the negative (-) supply lead to the negative (-) speaker input terminal. The woofer cone should

move outward.

NOTE: Supply voltage should only be momentarily applied to the speaker input terminals to avoid possible

damage to the speaker.

4. Sweep Test

Apply a 5 Vrms, 25 Hz signal to the speaker's input connectors. Sweep the oscillator from 25 Hz to 25

kHz, there should not be any buzzes, rattles or extraneous noise.

There should not be any buzzes or rattles from within the speaker cabinet. Redress any wire or

component that buzzes.

Figure . Wiring Harness and Input Connectors

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DISASSEMBLY/ ASSEMBLY PROCEDURES

NOTE: umbers in parentheses represent the item callouts in Figures and 2.

. Driver Removal (Refer to Figures and 2)

ote: Use Step . to disassemble the short 3ft driver barrel ( 4) from the 9ft barrel ( 5).

. Use a 3/8" hex-head wrench to remove four flange bolts (3), locknuts (4) and washers (5) that holds

the driver housing ( ) and flange cover (2) together.

.2 Use a hex-head wrench to remove the eight bolts (6) that mount the driver (7) to the driver housing.

.3 Use a flat-head screwdriver to pry the driver out from the driver housing. Do not let the driver fall out

beyond the distance of the wiring harness (8). To remove the risk of damage to the driver, it's advisable to

have two people perform this step.

.4 Remove the two connectors (part of the wiring harness (8)) from the driver's terminals.

.5 Remove the driver from the housing.

2. Driver Replacement (Refer to Figures and 2)

2. Place the driver gasket (9) into the driver housing ( ). Align the screw holes in the gasket with the

screw holes of the driver housing.

2.2 Connect the two connectors from the wiring harness (8) to the terminals of the new driver (7).

2.3 Bolt the driver into the driver housing by tightening eight bolts (6) with a hex-head wrench.

2.4 Assemble the 3ft driver barrel ( 4) and the 9ft barrel ( 5) by matching up the interlocking tabs on the

driver housing ( ) and flange cover (2).

2.5 Tighten four flange bolts (3), locknuts (4) and washers (5) with a 3/8" hex-head wrench.

Figure 2. Cannon Assembly

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MAIN ASSEMBLY PART LIST (FIGURES 3 AND 4)

Item

Number Description Part Number Qty See

Note

1 Housing, Driver, Blk 131073-A 1

2 Flange, Cover, Blk, 9ft 131080-A 1

3 Screw, Cap 3/8-16x1 3/4 Hex Hd 134972-28 4 *

4 Nut, Lock, Flange 3/8 X 16 137412 4 *

5 Washer, Flat, 3/8, Black 134976 4 *

6 Screw, Mach, 10-32x.625, Cap, Socket 133508-10 8

7 Woofer Assy, 12", AWCS II 175484 1

8 Harness Assy, 12", Cannon 131560 1

9 Gasket, 12" 131075-B1 1

10 Connector, Barrier Strip 130133 1

11 Screw, Tapp, 6-13x.625, Pan, XRC/S 172783-10 2

12 Gasket, Flange, Cannon 137742 1

13 Molding, Protective, Cannon 131558 1

14 Barrel, 3ft Blk 131072-3A 1

15 Barrel, 9ft, Blk 131072-9A 1

16 Flange, End, Blk, 9ft 131084-A 1

*This item is included in the 3ft packaging material, refer to Figure 5.

Figure 3. Main Exploded View

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Figure 4. 3ft and 9ft Barrel Sections

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PACKAGING PART LIST (FIGURES 5 AND 6)

Item

Number Description Part Number Qty See

Note

1 Bag, Poly, 3x5 113924 1

2 Allen Wrench 139931 1

3 Conn, Terminal, Spade Lug 131697 2

4 Bag, Poly, 10x14.5 , Lit Kit 103351 1

5 Card, Registration 180089 1

6 Sheet, Instruction 137743 1

7 Manual, Owners, AWCS II 174947 1

8 Carton, Rsc, 3ft Assy, Cannon 137738 1

9 Carton, Insert Assy, Center, 3ft 137740 2

10 Packing, Pad, 20.0x20.0, D/C, 3ft 137741 1

11 Tie, Cable 171861 4

12 Carton, Hsc, Bottom, 9ft Assy, Cannon 137739 1

13 Carton, Hsc, Top, 9ft Assy,Cann 138604 1

14 Carton, Insert Assy, Center, 9ft 137740 2

15 Insert Assy, End, 9ft 138605 4

Figure 5. 3ft Driver Packaging

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Figure 6. 9ft Barrel Packaging

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE

Bose Corporation

The Mountain

Framingham, Massachusetts USA 01701

P/N 186166 12/95 Rev. 0 FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-367-4008

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