Bose Companion 3 Manuel utilisateur

Companion®3 Multimedia

Speaker System

Reference Number 271885-SM Rev. 11

Electronic copy only

The Companion 3 multimedia speaker system is a stereo system designed to be used as a computer sound

system. It can be used with any analog audio source. It has a bass module with a 6.5 inch dual voice coil

woofer in a slot ported design. The two satellite speakers connect to the bass module and are easily mounted

to a monitor with brackets, or can be placed on a desk or other desired surface. A wired remote control pod is

used to control volume and mute/un-mute functions. It also has a second input and a stereo headphone output.

There are two different versions of the Companion 3 - Early Version / Later Version. From the outside there is

basically no difference but the boards inside are different. Please note the differences are documented in the

Electronic Part list. If a part numbers has changed from the early version or a part number has been added to

the later version a number 4 will be shown in Notes column. The product codes can be used to determined the

version. The product code for the early version is 033935 and the product code for the later version is 033061.

These product codes are the first six digits of the serial number and are located on the bottom of the system.

The serial number should be used to determined where the system was manufactured before attempting a

repair.

Product Description

Manufacturing Information - Early Version / Later Version

Warranty

The Bose®Companion®3 MultiMedia Speaker System is covered by a 1-year, transferable limited

warranty.

Caution: The Companion 3 MultiMedia Speaker System contains no user serviceable parts.

To prevent warranty infractions, refer servicing to warranty service centers or factory service.

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.

Contents

Safety Information .............................................................................................................................3

Electrostatic Discharge Sensitive (ESDS) Device Handling .......................................................3

Specifications....................................................................................................................................4

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

Figure 1. Bass Module Assembly Exploded View ................................................................................6

Bass Module Assembly Parts List ...................................................................................................6

Figure 2. Amplifier Module Assembly Exploded View...........................................................................7

Amplifier Module Assembly Parts list ..............................................................................................7

Figure 3. Packing Exploded Veiw ........................................................................................................8

Packing Parts List .............................................................................................................................8

Electrical Parts List .................................................................................................................... 9-19

Main PCB Assembly Parts List................................................................................................... 9-17

Power Supply PCB Assembly Parts List ................................................................................. 17-19

Disassembly Procedures ......................................................................................................... 20-22

Test Procedures ....................................................................................................................... 23-25

Theory of Operation ................................................................................................................. 26-28

Revision History .............................................................................................................................29

Theory of Operation ................................................................................................................. 26-28

Safety Information

1. Parts that have special safety characteristics are identified by the symbol on the schematics

or by special notes on the parts list. Use only replacement parts that have critical characteristics

recommended by the manufacturer.

2. Make leakage current or resistance measurements to determine that exposed parts are acceptably

insulated from the supply circuit before returning the unit to the customer. Use the following checks to

perform these measurements:

A. Leakage Current Hot Check- With the unit completely reassembled, plug the AC line cord directly

into a 120V AC outlet. (Do not use an isolation transformer during this test). Use a leakage current

tester or a metering system that complies with the American National Standards Institute (ANSI)

C101.1 “Leakage Current for Appliances” and the Underwriters Laboratories (UL) 6500/IEC 60056

paragraph 9.1.1. With the unit AC switch first in the ON position and then in the OFF position, mea-

sure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the unit

(antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts, etc.) espe-

cially any exposed metal parts that offer an electrical return path to the chassis. Any current measured

must not exceed 0.5 milliamp. Reverse the unit power cord plug in the AC outlet and repeat the test.

ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL

SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUS-

TOMER.

B. Insulation Resistance Test Cold Check- (1) Unplug the power supply and connect a jumper wire

between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure the resis-

tance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on

the unit. When testing 3 wire products, the resistance measured to the product enclosure should be

between 2 and infinite MOhms. Also, the resistance measured to exposed input/output connectors

should be between 4 and infinite MOhms. When testing 2 wire products, the resistance measured to

exposed input/output connectors should be between 4 and infinite MOhms. If it is not within the limits

specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked

before it is returned to the customer.

Electrostatic Discharge Sensitive (ESDS)

Device Handling

This unit contains ESDS devices. We recommend the following precautions when repairing, replacing

or transporting ESDS devices:

•Perform work at an electrically grounded work station.

•Wear wrist straps that connect to the station or heel straps that connect to conductive floor mats.

•Avoid touching the leads or contacts of ESDS devices or PC boards even if properly grounded.

Handle boards by the edges only.

•Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert unprotected

devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or plastic

trays.

Specifications

Mechanical

Dimensions: Bass Module: 8 5/8 “H x 7 1/8” W x 14” D

(21.8 x 18 x 35.56 cm)

Satellite Speaker: 3 1/2” H x 2 1/2” W x 2 3/8” D

(8.89 x 6.35 x 6.10 cm)

Control Pod: 2 1/2 “D x 1 1/8” H

(6.35 x 2.79 cm)

Weight: Bass Module: 15.4 lbs (6.98 kg) unpacked

Satellite Speaker: 0.5 lbs (0.23 kg) each

Packaged System 19.95 lbs (9.06 kg) packed

Finish: Bass Module: Scratch-resistant, satin-finish

vinyl

Satellites: Painted polymer finish

Bass Box: Slot ported

Bass Box Port Tuning: 45 Hz

Electrical

Power Rating: USA/Canada: 115 VAC 50/60 Hz

Japan 100 VAC 50/60 Hz

Euro 230 VAC 50/60 Hz

Nominal System

Bandwidth:

40 Hz to 15 kHz

Maximum SPL: 100 dB (A weighted) pink

noise signal

Output: Bass: 60 Watts

Satellites: 18 Watts per channel

Part List Notes

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

is required before ordering.

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

3. This part is critical for safety purposes. Failure to use a substitute replacement with the same

safety characteristics as the recommended replacement part might create shock, fire and/or other

hazards.

4. The part number listed was included in the latest version of the Companion 3. The Main board and

the Power board for the latest version can be identified by the part number stamped on the compo-

nent side of the board.

Power Board - 285350-001

Main Board - 280066-001

5. The part number listed is an assembly part number. The individual parts of the assembly might not

be available separately.

6. This part is referenced for informational purposes only. It is not stocked as a repair part. Refer to

the next higher assembly for a replacement part.

Figure 1. Bass Module Assembly Exploded View

Item Description Part Number Qty. Note

1 BASS MODULE ASSY, US/CANADA, 120V

BASS MODULE ASSY, JAPAN, 100V

BASS MODULE ASSY, EURO, 230V

(Complete package, includes Amp Mod Assy.)

*282451-001

*282451-002

*282451-003

2 CLEAT, ABS 271817-001 1

3 SCREW, 4 x 1, THDF, FLHD, 82 DEG, PH 274151-16 3

4 CLIP, SPRING, KNOB 262542 1

5 KNOB, VOL CNTL, BLK 271860-001 1

6 LABEL, I/O, US/CANADA, 120V

LABEL, I/O, JAPAN, 100V

LABEL, I/O, EURO, 230V

272079-001

272079-002

272079-003

7 SCREW, TF, 4 x 3/4, PAN, PH, BLK 273556-12 5

8 MOD ASSY, AMP, 120V

MOD ASSY, AMP, 220V, EURO

MOD ASSY, AMP, 100V JAPAN

*307876-011

*307876-033

*307876-022

3,4

- XFORMER, TORROID, 105W, 15VDC, 7A

TRANSFORMER, TOROID, 100V, 60Hz

TRANSFORMER, TOROID, 230V, 50Hz

271818-001

N/A

277613-001

*Capacitor C7 on the new power supply board may need to be replaced, see Service Bulletin 271885-B4

345

Item Description Part Number Qty. Note

1 PCB ASSY, MAIN 280109-01 1 6

2 BRACKET, METAL, IC 271859 1 6

3 HEATSINK, EXTRUDED, COMP 3 271856 1 6

4 CLIP, THERMAL, THERMISTOR 272964-001 1 6

5 HEAT SPREADER, ALUM 279844-001 1 6

6 SCREW, TAPP, 6-13x.625, PAN, XRC/S 172783-10 4

7 CONN, SWITCH, POWER, 3P 273115-001 1 6

8 PCB ASSY, PS, 120V, US

PCB ASSY, PS, 100V, JAPAN

PCB ASSY, PS, 240V, EURO

307872-011

307872-022

307872-033

*Capacitor C7 on the new power supply board may need to be replaced, see Service Bulletin 271885-B4

Figure 2. Amplifier Module Assembly

Item

Number Description Part

Number Qty

. Notes

1 OWNER’S GUIDE US/CANADA

OWNER’S GUIDE 5 LANG 271883-001

272956 1

2 BAG, POLY, 14.38 x 9.87 x 2 mil 103351 1

3 PACKING TUBE, 4.75 x 2.75 x 7.69 273522 1

4 BASS MODULE ASSY, US/CANADA, 120V

BASS MODULE ASSY, EURO, 230V

BASS MODULE ASSY, JAPAN, 100V

(Complete package, includes Amp Mod

Assy.)

282451-001

282451-002

282451-003

4,5

5 CONTROL POD (NON-REPAIRABLE) 307874-001 1 5

6 LINE CORD, 100V, BLK, JAPAN

LINE CORD, 120V, BLK, US/CANADA

LINE CORD, 220V, BLK, EURO

LINE CORD, 230V, BLK, UK

LINE CORD, 240V, BLK, AUS

264514-001

262814-001

148203

134725

284243-001

7 BRACKET, SAT, LEFT 271880-001 1

8 BRACKET, SAT, RGHT 271881-001 1

9 CABLE, INPUT, 3.5MM, 6FT, BLK 271994-001 1

10 SCREW, MACH, M4 x 0.5, PAN 272963-08 2

11 BAG, POLY, 14.38 x 9.87 x 2 mil 103351 1

12 FASTENER, RD, CLR, 21MM OD, PSA 273164 2

13 FEET, CLEAR, SATELLITE 178321-04 16

14 FEET, RUBBER, BRACKET 260465 4

15 SAT ASSY, BLACK/GRAY 271827-019 2

16 CARTON, RSC, PRINTED 272410 1

17 PACKING, EPS, FILLERS 272409 2

Figure 3. Packaging Exploded View

56789

10 11 12 13 14

16 X2

Reference

Designator

Description Part Number Note

R1 1.00K, 0805, 1/10W, 1% 133625-1001

R4 1.00K, 0805, 1/10W, 1% 133625-1001

R2 1.00K, 0805, 1/10W, 1% 133625-1001

R3 1.00K, 0805, 1/10W, 1% 133625-1001

R5 2.00K, 0805, 1/10W, 1% 133625-2001

R6 JUMPER, CHIP, 0805 133627

R101 1.21K, 0805, 1/10W, 1% 133625-1211

R102 1.30K, 0805, 1/10W, 1% 133625-1301

R103 9.53K, 0805, 1/10W, 1% 133625-9531

R104 10.0K, 0805, 1/10W, 1% 133625-1002

R105 127K 0805, 1/10W, 1% 133625-1273

R106 127K 0805, 1/10W, 1% 133625-1273

R107 10.0K, 0805, 1/10W, 1% 133625-1002

R108 10.0K, 0805, 1/10W, 1% 133625-1002

R109 2.00K, 0805, 1/10W, 1% 133625-2001

R110 10.0K, 0805, 1/10W, 1% 133625-1002

R111 10.0K, 0805, 1/10W, 1% 133625-1002

R125 2.55K, 0805, 1/10W, 1% 133625-2551

R126 200K, 0805, 1/10W, 1% 133625-2003

R127 47.5K, 0805, 1/10W, 1% 133625-4752

R128 1.10K, 0805, 1/10W, 1% 133625-1101

R129 21.5K, 0805, 1/10W, 1% 133625-2152

R130 330 OHM, 0805, 1/10W, 1% 133625-3300

R131 6.81K, 0805, 1/10W, 1% 133625-6811

R132 17.4K, 0805, 1/10W, 1% 133625-1742

R133 1.62K, 0805, 1/10W, 1% 133625-1621

R134 2.00K, 0805, 1/10W, 1% 133625-2001

R135 1.00K, 0805, 1/10W, 1% 133625-1001

R136 1.82K, 0805, 1/10W, 1% 133625-1821

R137 10.0K, 0805, 1/10W, 1% 133625-1002

R138 2.00K, 0805, 1/10W, 1% 133625-2001

R139 1.50K, 0805, 1/10W, 1% 133625-1501

R140 1.50K, 0805, 1/10W, 1% 133625-1501

R201 1.21K, 0805, 1/10W, 1% 133625-1211

R202 1.30K, 0805, 1/10W, 1% 133625-1301

R203 9.53K, 0805, 1/10W, 1% 133625-9531

R204 127K 0805, 1/10W, 1% 133625-1273

R205 10.0K, 0805, 1/10W, 1% 133625-1002

R206 127K 0805, 1/10W, 1% 133625-1273

R207 10.0K, 0805, 1/10W, 1% 133625-1002

R208 10.0K, 0805, 1/10W, 1% 133625-1002

R209 10.0K, 0805, 1/10W, 1% 133625-1002

R210 10.0K, 0805, 1/10W, 1% 133625-1002

R211 2.00K, 0805, 1/10W, 1% 133625-2001

ELECTRICAL PARTS LIST

Main PCB Assembly

Resistors

Reference

Designator

Description Part Number Note

R225 100K, 0805, 1/10W, 1% 133625-1003

R226 100K, 0805, 1/10W, 1% 133625-1003

R227 JUMPER, CHIP, 0805 133627

R229 2.55K, 0805, 1/10W, 1% 133625-2551

R230 200K, 0805, 1/10W, 1% 133625-2003

R231 47.5K, 0805, 1/10W, 1% 133625-4752

R232 1.10K, 0805, 1/10W, 1% 133625-1101

R233 21.5K, 0805, 1/10W, 1% 133625-2152

R234 330 OHM, 0805, 1/10W, 1% 133625-3300

R235 6.81K, 0805, 1/10W, 1% 133625-6811

R236 17.4K, 0805, 1/10W, 1% 133625-1742

R237 1.62K, 0805, 1/10W, 1% 133625-1621

R238 2.00K, 0805, 1/10W, 1% 133625-2001

R239 1.00K, 0805, 1/10W, 1% 133625-1001

R240 1.82K, 0805, 1/10W, 1% 133625-1821

R241 10.0K, 0805, 1/10W, 1% 133625-1002

R242 2.00K, 0805, 1/10W, 1% 133625-2001

R243 1.50K, 0805, 1/10W, 1% 133625-1501

R244 1.50K, 0805, 1/10W, 1% 133625-1501

R301 1.00K, 0805, 1/10W, 1% 133625-1001

R301 100 OHM, 0805, 1/10W, 1% 133625-1000 4

R301 100 OHM, 0805, 1/10W, 1% 133625-1000 Euro /UK /Aus

R302 1.00K, 0805, 1/10W, 1% 133625-1001

R302 100 OHM, 0805, 1/10W, 1% 133625-1000 4

R302 100 OHM, 0805, 1/10W, 1% 133625-1000 Euro /UK /Aus

R305 10.0K, 0805, 1/10W, 1% 133625-1002

R306 10.0K, 0805, 1/10W, 1% 133625-1002

R307 1.20 OHMS, 2512, 1W, 5% 181895-1R20 Euro /UK /Aus

R308 1.00K, 0805, 1/10W, 1% 133625-1001

R309 100 OHM, 0805, 1/10W, 1% 133625-1000

R310 100 OHM, 0805, 1/10W, 1% 133625-1000

R311 JUMPER, CHIP, 0805 133627

R311 1.00K, 0805, 1/10W, 5% 133626-1025 4

R312 JUMPER, CHIP, 0805 133627

R312 1.00K, 0805, 1/10W, 5% 133626-1025 4

R314 1.00K, 0805, 1/10W, 1% 133625-1001

R315 1.00K, 0805, 1/10W, 1% 133625-1001

R316 249 OHM, 0805, 1/10W, 1% 133625-2490

R317 249 OHM, 0805, 1/10W, 1% 133625-2490

R318 100K, 0805, 1/10W, 1% 133625-1003

R319 249 OHM, 0805, 1/10W, 1% 133625-2490

R320 1.00K, 0805, 1/10W, 1% 133625-1001

R323 487K, 0805, 1/10W, 1% 133625-4873

R324 1.21K, 0805, 1/10W, 1% 133625-1212

ELECTRICAL PARTS LIST

Main PCB Assembly

Resistors (continued)

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