Bose Acoustimass 5 Series Manual de usuario

Acoustimass®5 Series III

Loudspeaker System

Part Number 198662 Rev. 00

Service Manual

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.

WARRANTY INFORMATION

The Bose Acoustimass 5 Series III Loudspeaker System is covered by a 5-year transferable

limited warranty.

CAUTION: The Acoustimass 5 Series III Loudspeaker

System contains no user serviceable parts. To prevent

warranty infractions, refer servicing to warranty

service centers or factory service.

CONTENTS

Warranty Information....................................................................................................................... 1

Specifications................................................................................................................................... 2

Product Description ........................................................................................................................ 2

Disassembly/Assembly Procedures .............................................................................................. 3

Test Procedures ............................................................................................................................... 4

Figure 1. Acoustimass®5 Series III Test Setup Diagram ................................................................. 4

Part List Notes.................................................................................................................................. 5

Main Part list, Acoustimass 5 Series III (see Figure 2) ................................................................ 5

Figure 2. Acoustimass 5 Series III Bass Module Exploded View..................................................... 6

Packing List, Acoustimass 5 Series III Loudspeaker System (see Figure 3) ............................ 7

Figure 3. Acoustimass 5 Series III Loudspeaker System Packing View.......................................... 7

Part List, Acoustimass 5 Series III Loudspeaker System Crossover (see Figure 4) ................ 8

Figure 4. Acoustimass 5 Series III Loudspeaker System Crossover Layout Diagram .................... 8

Figure 5. Acoustimass 5 Series III Crossover Schematic Diagram ................................................. 9

External Dimensions: Satellites: 3.15 x 6.1 x 4.1 in. (8.0 x 15.5 x 10.5 cm)

Bass Module: 14 x 7.5 x 17.0 in. (35.6 x 18.4 x 43.2 cm)

Weight: Single Satellite: 2.4 lb. (1.1 kg)

Bass Module: 21.0 lb. (9.5 kg)

Packed System: 28 lb. (12.6 kg)

Sensitivity: Satellites: ≥83 dBspl, 400 Hz octave

Bass Module: ≥83 dBspl 100 Hz octave band

Crossover

Frequency: ≤200 Hz at 6 dB/oct.

System Protection: PTC, Lamp, Resistor

Cube Protection: None

Impedance: 6 Ohms nominal, 4.8 Ohms minimum from

20 Hz - 20 kHz, all channels

Power Handling,

all channels: 100 Watts continuous per IEC-268-5 for

100 hours. Recommended amplifier/receiver

power 10-200 Watts per channel.

SPECIFICATIONS

PRODUCT DESCRIPTION

The Bose®Acoustimass®5 Series III Loudspeaker System offers several improvements over

the Series II. It uses two extended response satellite speakers that are 20 percent smaller

than earlier versions. The satellite speaker assemblies reproduce the middle and high

frequencies of two full-range channels. The satellite speaker assemblies use a new style

push connector for ease of installation and better wire retention. The satellite speaker

assemblies are non-repairable.

The Acoustimass bass module contains two woofers capable of reproducing two channels

of low frequency information. The AM-5 Series III system may be used in conventional stereo

applications or as left and right (front or rear) channels in a home theater application.

The bass module is the same size and appearance as the AM-5 Series II.

DISASSEMBLY/ASSEMBLY PROCEDURES

4.2 Slide the crossover assembly onto the

tabs located on the terminal cap (7).

4.3 Replace the four screws (9) removed

in procedure 3.2.

4.4 Perform procedure 2.

5. Woofer Assembly Removal

5.1 Perform procedure 1.

5.2 Using a phillips-head screwdriver,

remove the four screws (3) that secure the

woofer assembly (2) you wish to remove to

the cabinet.

5.3 Lift the woofer assembly out of the

cabinet and cut the wires as close to the

terminals as possible.

Note: Be sure to replace the woofer

gasket (1) when you replace the woofer

assembly.

6. Woofer Replacement

6.1 Strip the woofer cable wires.

6.2 Using a few small pieces of cellophane

tape, secure the new woofer gasket (1) to

the woofer assembly (2). This will hold it in

place while you install the woofer assembly

into the bass module cabinet.

6.3 Solder the woofer cable wires to the

woofer assembly. Refer to Figure 5.

6.4 Secure the woofer assembly in place

using the four screws (3) removed in

procedure 5.2.

6.5 Perform procedure 2.

Note: Refer to Figure 2 for the following

procedures.

1. Terminal Cap Removal

1.1 Using a phillips-head screwdriver,

remove the six screws (4) that secure the

terminal cap (7) to the bass module cabi-

net.

1.2 Gently pull the terminal cap away from

the cabinet. Be careful not to mark the

plastic of the terminal cap or chip the

wood of the bass module cabinet.

2. Terminal Cap Replacement

2.1 Place the terminal cap (7) onto the bass

module cabinet. Make sure it is fully seated

against the cabinet.

Note: Be sure the text on the label is

aligned with the text on the front of the

bass module.

2.2 Replace the six phillips-head screws (4)

removed in procedure 1.1. Do not

overtighten the screws.

3. Crossover Assembly Removal

3.1 Perform procedure 1.

3.2 Using a phillips-head screwdriver,

remove the four screws (9) that secure the

crossover assembly (8) to the terminal

cap (7).

3.3 Slide the crossover assembly off of the

tabs located on the terminal cap.

3.4 Cut the wires as close to the crossover

assembly as possible.

4. Crossover Assembly Replacement

4.1 Strip the wires from the woofer

assemblies (2) and solder them to the

appropriate locations on the crossover

assembly (8).

TEST PROCEDURES

3. Woofer Rub and Tick Test

3.1 Perform Disassembly/Assembly

procedure 5. Do not cut the wires at the

woofer assembly terminals.

3.2 Connect a signal generator directly to

the terminals of the woofer assembly

under test.

3.3 Apply a 10 Hz, 10 Vrms signal to the

woofer assembly.

3.4 Listen carefully for any extraneous

noises such as rubbing, scraping, or

ticking.

Note: To distinguish between normal

suspension noise and rubs or ticks,

displace the cone slightly with your fingers.

If the noise stays the same, it is normal

suspension noise and the woofer is fine.

Suspension noise will not be heard with

program material.

4. System Sweep Test

4.1 Set up the system as shown in

Figure 1.

4.2 Apply a 10 Hz, 10 Vrms sine wave to

the left and right signal inputs.

4.3 While listening to the output of the

system, sweep the input frequency slowly

up from 10 Hz to 500 Hz.

4.4 The output should smoothly cross over

from the bass module to the satellite

speakers.

4.5 Reduce the input voltage level to

5 Vrms.

4.6 Continue sweeping from 500 Hz to 15

kHz. Replace any satellite assembly that

buzzes or sounds distorted.

Note: The Acoustimass 5 Series III satellite

assemblies are non-repairable. If you have

a defective satellite assembly, it must be

replaced.

Inputs Outputs

Power Amplifier

+-+-

Audio Signal

Generator

Satellite Speakers

Acoustimass

Module

Figure 1. Acoustimass®5 Series III Test

Setup Diagram

1. Bass Module Air Leak Test

1.1 Apply a 100 Hz, 10 Vrms sine wave to

the left and right channel inputs of the bass

module. Do not connect the satellite

speakers.

1.2 Listen carefully for air leaks from

around the terminal cup and cabinet

seams. Air leaks will be heard as a hissing

or sputtering sound.All repairs must be

hidden. Test duration should be 5 seconds

minimum.

2. Woofer Phase Test

2.1 Apply a 50 Hz, 10 Vrms sine wave to

the left and right channel inputs of the bass

module.

2.2 While the signal is being applied to the

bass module, remove the input to one of

the channels.

2.3 The sound output level should drop by

approximately half. If the sound output level

increases or stays the same, then there is a

wiring problem in the woofers.

1. This part is not normally available from Customer Service. Approval from the Field Service

Manager is required before ordering.

2. The individual parts located on the PCBs are listed in the Electrical Part List.

Acoustimass®5 Series III (see Figure 2)

PART LIST NOTES

MAIN PART LIST

Item

Number Description Part Number Qty. Note

1 GASKET, WOOFER, 6.5" 104794-08 2

2 WOOFER ASSY, 5.25" 190170 2

3 SCREW, TAPP, 8-11x.75, PAN, XRC/SQ 172672-12 8

4 SCREW, TAPP, 8-11x1.5, PAN, XRC/SQ 172672-24 6

5 LABEL, PRODUCT, AM5 III 196449 1

6 CONN, BARRIER, GLTN, 2 POS, BLK 170036 4

7 CAP, TERMINAL, BLACK 173311-1 1

7 CAP, TERMINAL, WHITE 173311-2 1

8 CROSSOVER ASSY, AM-5 III 196456 1 2

9 SCREW, TAPP, 6-13x.375, PAN, XPC/S 172783-06 4

10 GASKET, TAPE FOAM 175548 2

Figure 2. Acoustimass®5 Series III Bass Module Exploded View

(4X)

VIEW A-A

(6X)

(8X)

(2X)

(4X)

PACKING LIST

Acoustimass®5 Series III Loudspeaker System (see Figure 3)

Figure 3. Acoustimass®5 Series III Loudspeaker System Packing View

Item

Number Description Part Number Qty. Note

1 PACKING, CORNER, POST, BASS INSRT 148364 2

2 PACKING, CORNER, POST, BASS MOD 148044 2

3 SATELLITE ASSY, SGL, BLK 192420-019 2

3 SATELLITE ASSY, SGL, WHT 192420-029 2

4 BAG, POLY, 13.5x35x9.5x2.5 mil 114522 1

5 WIRE, 18/2 ZIP CORD, WHITE, 20 FT 140236 4

5 WIRE, 18/2 ZIP CORD, BLACK, 20 FT 130915 4

6 PACKING, TRAY, D/C, AM-5 II 148362 1

7 SHT, QUICKSTART, AM5 III 196459 1

8 BUMPER, RECESSED, FOOT, .88" 142839 4

9 MANUAL, OWNER'S AM-5 III 196451 1

10 BAG, POLY, 14.38x9.87x2 mil 103351 1

11 INFORMATION CARD, WARRANTY U.S. 181357 1

12 BROCHURE, ALL PRODUCTS 188898 1

13 INFO CARD, WARRANTY, MULTI-LANGUAGE 181460 1

14 CARTON, RSC, AM-5 III 196448-00 1

(2X)

1312111098

(4X)

Acoustimass® 5 Series III Loudspeaker System Crossover (see Figure 4)

Figure 4. Acoustimass® 5 Series III Loudspeaker System Crossover Layout Diagram

PART LIST

Re erence

Designator

Description Part Number Qty. Note

R1, 39 Ohm, WW, 5W 13 105-390

R3, 4 5.1 Ohm, WW, 5W, 10% 13 105-5R1

C1, 47 uF, EL, BP, 85, 50V, 0% 136548

C3, 4 15 uF, EL, BP, 85, 50V, 0% 13 079

DS1, LAMP 141989

L1, 350 uH, INDUCTOR ASSY, 196463

PTC1, SWITCH, POLY, 50V, 4mm 175 33-1

- CONN, TERMINAL, 1 POS, FEMALE 147946 8

- PIN, GROOVED, .5 x.34x.045 1 9000-5 34 4

- TAPE, FOIL, W/LINER 134636 1

- WASHER, .1 5" #4, FLAT 108 58-04

- WASHER, FLAT, .141", #5 108 58-05

- SCREW, MACH, 4-40x1, PAN, XREC 103146-16

- NUT, HEX, 4-40 103 34-440

350

15uF

5.1

1.5A

350

47uF 5.1

1.5A

YEL

GRN

ORG

BRN

LEFT CHANNEL

RIGHT CHANNEL

NOTES: UNLESS OTHERWISE SPECIFIED

2. CAPACITOR VALUES ARE IN MICROFARADS.

1. RESISTOR VALUES ARE IN OHMS.

3. INDUCTOR VALUES ARE IN MICROHENRIES.

OUTR-

INR-

WR-

WR+

OUTR+

INR+

C2 R4

PTC2

DS2

OUTL-

INL-

WL-

WL+

OUTL+

INL+

C1 R3

PTC1

DS1

1 1

47uF

15uF

Figure 5. Acoustimass®5 Series III Crossover Schematic Diagram

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