Bose Lifestyle PS 18 User manual

Lifestyle®28 Home Theater System
5 Double Cube Speakers
PS28 bass module
Lifestyle®35 Home Theater System
5 Jewel Cube®Speakers
PS48 bass module
Lifestyle®18 Home Theater System
5 Single Cube Speakers
PS18 bass module
Lifestyle®PS 18, 28 and 48
Digital Acoustimass®Powered Speakers
Service Manual
©2005Bose Corporation
Reference Number 268795-SM
Rev 04
Electronic copy only
100V, 120V, 230V, Dual Voltage
Power PCB, Assembly - 260327-001, Bare PCB - 266459-001
AMP PCB, Assembly - 266999-0, Bare PCB - 267083-001
DSP PCB, Assembly - 267391-0, Bare PCB - 267086-001

1
PS18/28/48 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 SERVICE CENTER OR OWNER OF THE BOSE
PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY
OTHER PURPOSE.
Warranty
The Lifestyle®PS18/28/35 powered speaker system is covered by a limited 1-year transferable
warranty.
Contents
Safety Information.............................................................................................................................2
Electrostatic Discharge Sensitive Device Handling (ESDS) .........................................................2
Specifications ....................................................................................................................................3
Part List Notes ...................................................................................................................................4
Part List Table of Contents ...............................................................................................................4
Lifestyle®18 Home Theater System Packaging..............................................................................5
Figure 1. LS18 System Packaging Exploded View..............................................................................5
Lifestyle®28 Home Theater System Packaging..............................................................................6
Figure 2. LS28 System Packaging Exploded View..............................................................................6
Lifestyle®35 Home Theater System Packaging..............................................................................7
Figure 3. LS35 System Packaging Exploded View..............................................................................7
Lifestyle®18/28/35 Essentials Kit Part List .....................................................................................8
Figure 4. LS18, 28, 35 Essentials Kit Exploded View..........................................................................9
Lifestyle®18 Lit Kit Part List ..........................................................................................................10
Lifestyle®28 Lit Kit Part List ..........................................................................................................10
Lifestyle®35 Lit Kit Part List ..........................................................................................................10
Lifestyle®18 Single Cube Speaker, 5 Pack Packaging List .........................................................11
Lifestyle®28 Double Cube Speaker, 5 Pack Packaging List ........................................................11
Lifestyle®35 Jewel Cube®Speaker, 5 Pack Packaging List ........................................................11
Figure 5. LS18, 28 Cube Pack Exploded View .................................................................................. 12
Figure 6. LS35 Cube Pack Exploded View ........................................................................................12
Jewel Cube Part List .......................................................................................................................13
Figure 7. Jewel Cube Exploded View ................................................................................................13
Single and Dual Cube Speaker Part List .......................................................................................14
Figure 8. Cube Exploded View ..........................................................................................................14
PS18/28/48 Bass Module Assembly Part List ...............................................................................15
Figure 9. Bass Module Exploded View ..............................................................................................15
PS18/28/48 Amplifier Module Assembly Part List ........................................................................16
Figure 10. Amplifier Module Exploded View ......................................................................................16
PS18/28/48 Electrical Part List ................................................................................................. 17-31
Setting up a computer to issue TAP commands ..........................................................................32
Figure 11. Test cable part number 264564 ........................................................................................33
Placing the Bass Module into TAP Mode ......................................................................................34
Figure 12. DIP switch Up/Down orientation .......................................................................................34
Setting the Equalizer ......................................................................................................................34
Test Procedures ........................................................................................................................ 35-36
Bass Module Disassembly Procedures .................................................................................. 37-38
Cube Speaker Disassembly Procedures ......................................................................................39
Figure 13. PCB Part Number Identification .......................................................................................40
Figure 14. Date Of Manufacture (DOM) Identification.......................................................................40

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PS18/28/48 Service Manual
1. Parts that have special safety characteristics are identified by the symbol on 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 accept-
ably 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.) Refer to
UL6500 paragraph 9.1.1. Use a leakage current tester or a metering system that complies with
American National Standards Institute (ANSI) C101.1 “Leakage Current for Appliances” and
Underwriters Laboratories (UL) 6500, IEC 60065 paragraph 9.1.1. With the unit AC switch first in
the ON position and then in OFF position, measure 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.), especially 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 outlet and repeat test. ANY MEASUREMENTS NOT
WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT
MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.
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
resistance 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 Meg ohms. Also, the resistance measured to exposed output/
input connectors should be between 4 and infinite Meg ohms. When testing 2 wire products, the
resistance measured to exposed output/input connectors should be between 4 and infinite Meg
ohms. 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 unpro-
tected devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or
plastic trays.
SAFETY INFORMATION
CAUTION: THE BOSE®PS 28 AND PS 35 POWERED SPEAKER CONTAINS NO USER-SER-
VICEABLE PARTS. TO PREVENT WARRANTY INFRACTIONS, REFER SERVICING TO
WARRANTY SERVICE STATIONS OR FACTORY SERVICE.

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PS18/28/48 Service Manual
Dimensions: Bass Module: 8.0" W x 23.0" D x 16.0" H
(20.32 x 58.42 x 40.64 cm)
Single Satellite: 3.1” W x 4.0” D x 3.1” H
(7.0 x 10.2 x 7.9 cm)
Double Satellite: 3.1" W x 4.0" D x 6.02" H
(7.8 x 10.2 x 15.7 cm)
Jewel Cubespeaker: 2.2" W x 8.0" D x 2.6" H
(39.4 x 20.3 x 6.6 cm)
Weight: Module: 35.9 lb (16.3 kg)
Single Satellite: 1.1 lb (0.5 kg)
Double Satellite: 2.4 lb (1.1 kg)
Jewel Cube speaker: 1 lb (0.5 kg)
Specifications
Mechanical
Electrical
Drivers: Bass module: Two woofers, 5 1/4", 2.33 Ohms,
(wired in parallel)
Single Satellite speaker: One TwiddlerTM speakers per cube, 50 mm, 4 Ohms
Double Satellite speaker: Two Twiddler speakers per cube, 50 mm, 4 Ohms
(wired in series)
Jewel Cube speaker: Two Twiddler speakers per cube, 2 1/4", 3.2 Ohms
(wired in series)
Amplifier power: Bass Channel: 125W, <0.2% THD, 40 Hz-200 Hz,
120 Vrms AC mains
L/R/C/LS/RS: 20W, <0.2% THD, 200 Hz-15 kHz,
120 Vrms AC mains
Input impedance: Bass Module: 1.16 Ohms (two 2.33 Ohm woofers
wired in parallel)
Single Satellite: 4 Ohms (one 4 Ohm Twiddler speaker)
Double Satellite: 8 Ohms (two 4 Ohm Twiddler speakers
wired in series)
Jewel Cube Speaker: 6.4 Ohms (two 3.2 Ohm Twiddler speakers
wired in series)
L/R/C/LS/RS output distortion: <0.1% THD at 0.5W
Bass distortion: <0.2% THD at 0.5W
L/R/C/LS/RS output noise: <500 uVrms, A weighted
Bass output noise: <2 mVrms, unweighted
L/R/C/LS/RS DC offset: <25 mVdc
L/R/C/LS/RS balance: ±2.0 dB
Channel separation: >40 dB at 1 kHz
>30 dB at 10 kHz
(stereo mode)
Turn-on delay: 1.5 seconds maximum
Turn-off delay: 200 ms maximum
Main voltage: USA/Canada : 120 VAC, 60Hz
Europe, UK, AUS : 230/240VAC, 50Hz
Dual Voltage : 115/230VAC, 50/60Hz
Inrush current: 20A peak for first 33.3 msec.

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PS18/28/48 Service Manual
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 located on the PCB are listed in the 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. This part is set to the Lifestyle®28/38 system equalization. To use this part on a Lifestyle®18, 35
or 48 system, refer to the instructions located on page 31 for setting the Equalizer using TAP
commands. Except for the Lifestyle®18 system, in place of using TAP commands to set the EQ,
the customer may use the Bose®AdaptIQTM audio calibration system to customize the EQ to their
room. The Lifestyle®18 system bass module is set to provide a lower outut to match the single
cubes, which can only be set using TAP commands.The AdaptIQ audio calibration system is
shipped with the Lifestyle®18,28,35,38,48 system.
The part list is broken into sections relative to the way the system is packaged and built, starting
from the system level and ending at the component level.
System Packaging - Console, bass module, cube pack, essentials kit.
Essentials Kit - Remote, batteries, antennas, power pack, line cords, IR Blaster, TV sensor.
Lit Kit - Feet, owner’s guide, installer’s guide.
Cube Speaker Pack - Cubes, connection cables
Bass Module Assembly - Amplifier module, woofer, grille
Amplifier Module Assembly - Power PCB, amplifier PCB, DSP PCB
Electrical Part List - Resistors, Capacitors, Diodes, Transistors, ICs, Misc.
Part List Table of Contents
Lifestyle®18 Home Theater System Packaging ............................................................................................. 5
Figure 1. LS18 System Packaging Exploded View ............................................................................................. 5
Lifestyle®28 Home Theater System Packaging ............................................................................................. 6
Figure 2. LS28 System Packaging Exploded View ............................................................................................. 6
Lifestyle®35 Home Theater System Packaging ............................................................................................. 7
Figure 3. LS35 System Packaging Exploded View ............................................................................................. 7
Lifestyle®18/28/35 Essentials Kit Part List .................................................................................................... 8
Figure 4. LS18, 28, 35 Essentials Kit Exploded View ......................................................................................... 9
Lifestyle®18 Lit Kit Part List ......................................................................................................................... 10
Lifestyle®28 Lit Kit Part List ......................................................................................................................... 10
Lifestyle®35 Lit Kit Part List ......................................................................................................................... 10
Lifestyle®18 Single Cube Speaker, 5 Pack Packaging List ......................................................................... 11
Lifestyle®28 Double Cube Speaker, 5 Pack Packaging List ....................................................................... 11
Lifestyle®35 Jewel Cube®Speaker, 5 Pack Packaging List ........................................................................ 11
Figure 5. LS18, 28 Cube Pack Exploded View ................................................................................................. 12
Figure 6. LS35 Cube Pack Exploded View ....................................................................................................... 12
Jewel Cube Part List...................................................................................................................................... 13
Figure 7. Jewel Cube Exploded View ............................................................................................................... 13
Single and Dual Cube Speaker Part List ...................................................................................................... 14
Figure 8. Cube Exploded View ......................................................................................................................... 14
PS18/28/48 Bass Module Assembly Part List .............................................................................................. 15
Figure 9. Bass Module Exploded View ............................................................................................................. 15
PS18/28/48 Amplifier Module Assembly Part List ....................................................................................... 16
Figure 10. Amplifier Module Exploded View ..................................................................................................... 16
PS18/28/48 Electrical Part List ................................................................................................................. 17-31

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PS18/28/48 Service Manual
1
6
7
9
10
12
13
23 4
5
811
Lifestyle®18 Home Theater System Packaging
Item
Number
Description Part Number Note
1 CARTON 268787-001
2 PACKING, INSERT, GRILL 258465
3 PACKING, END CAP, EPS, FRONT 258466
4 PACKING, END CAP, EPS, REAR 258475
5 BAG, POLY 196638
6 PACKING PAD, 29.38X21.38 258469
7 AV28, US TUNER, RC1
AV28,EUROTUNER,RC4
AV28,JAP, IR REMOTE,RC2
266440-1019
266440-2049
266440-3029
1
8 PS18 BASS MODULE, 120V, BLACK
PS18 BASS MODULE, 120V, WHITE
PS18 BASS MODULE, 230V, BLACK
PS18 BASS MODULE, 230V, WHITE
PS18 BASS MODULE, DUAL, BLACK
PS18 BASS MODULE, DUAL, WHITE
269720-119
269720-129
269720-219
269720-229
269720-619
269720-629
1, 4
9 SINGLE SAT, 5 PK, BLACK
SINGLE SAT, 5 PK, WHITE
268791-119
268791-129
1
10 ESSENTIALS KIT, LS18, 120V, (US)
ESSENTIALS KIT, LS18, 220V, (EURO)
ESSENTIALS KIT, LS18, 230V, (UK)
ESSENTIALS KIT, LS18, 240V, (AUS)
ESSENTIALS KIT, LS18, DUAL
269660-1
269660-2
269660-4
269660-5
269660-6
1
11 FOAM, SHT, ADHESIVE BACK 263426
12 GUIDE, QUICK SETUP 268796
13 COMMITMENT LETTER 251001
Figure 1. LS18 System Packaging Exploded View

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PS18/28/48 Service Manual
Lifestyle®28 Home Theater System Packaging
1
6
7
9
10
12
13
2
34
5
8
11
Figure 2. LS28 System Packaging Exploded View
Item
Number
Description Part Number Note
1 CARTON, RSC 258474-002
2 PACKING INSERT GRILLE 258465
3 PACKING END CAP EPS FRONT 258466
4 PACKING END CAP EPS REAR 258475
5 BAG POLY 196638
6 PACKING PAD 29.38X21.38 258469
7 AV28, US TUNER, RC1
AV28, EURO TUNER, RC4
AV28,JAP, IR REMOTE, RC2
266440-1019
266440-2049
266440-3029
1
8 BASS MODULE, BLACK, 120V
BASS MODULE, WHITE, 120V
BASS MODULE, BLACK, 220V
BASS MODULE, WHITE, 220V
BASS MODULE, BLACK, DUAL
BASS MODULE, WHITE, DUAL
269498-119 OR 269720-119
267498-129 OR 269720-129
269498-219 OR 269720-219
269498-229 OR 269720-229
269498-619 OR 269720-619
269498-629 OR 269720-629
1, 4
9 SAT ASSY, 5 PK, BLACK
SAT ASSY, 5 PK, WHITE
256815-113 OR -119
256815-123 OR -129
1
10 ESSENTIALS KIT, LS-35, 120V, (US)
ESSENTIALS KIT, LS-35, 220V, (EURO)
ESSENTIALS KIT, LS-35, 230V, (UK)
ESSENTIALS KIT, LS-35, 240V, (AUS)
ESSENTIALS KIT, LS-35, DUAL
266217-1
266217-2
266217-4
266217-5
266217-6
1
11 FOAM, SHT, ADHESIVE BACK 263426
12 GUIDE, QUICK SETUP 266254
13 COMMITMENT LETTER 251001

7
PS18/28/48 Service Manual
1
6
7
9
10
12
13
23 4
5
811
Lifestyle®35 Home Theater System Packaging
Item
Number
Description Part Number Note
1 CARTON, RSC 258474-002
2 PACKING INSERT GRILLE 258465
3 PACKING END CAP EPS FRONT 258466
4 PACKING END CAP EPS REAR 258475
5 BAG POLY 196638
6 PACKING PAD 29.38X21.38 258469
7AV28, US TUNER, RC1
AV28, EURO TUNER, RC4
AV28, JAP, IR REMOTE, RC2
266440-1019
266440-2049
266440-3029
1
8 PS18/28/35, BASS MODULE, BLACK, 120V
PS18/28/35, BASS MODULE, WHITE, 120V
PS18/28/35, BASS MODULE, BLACK, 220V
PS18/28/35, BASS MODULE, WHITE, 220V
PS18/28/35, BASS MODULE, BLACK, DUAL
PS18/28/35, BASS MODULE, WHITE, DUAL
269499-119 or 269720-119
266499-129 or 269720-129
266499-219 or 269720-219
266499-229 or 269720-229
266499-619 or 269720-619
266499-629 or 269720-629
1, 4
9 SAT ASSY, 5 PK, BLACK
SAT ASSY, 5 PK, WHITE
256816-013 OR -019
256816-023 OR -029
1
10 ESSENTIALS KIT, LS-35, 120V, (US)
ESSENTIALS KIT, LS-35, 220V, (EURO)
ESSENTIALS KIT, LS-35, 230V, (UK)
ESSENTIALS KIT, LS-35, 240V, (AUS)
ESSENTIALS KIT, LS-35, DUAL
266218-1
266218-2
266218-4
266218-5
266218-6
1
11 FOAM, SHT, ADHESIVE BACK 263426
12 GUIDE, QUICK SETUP 266255
13 COMMITMENT LETTER 251001
Figure 3. LS35 System Packaging Exploded View

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PS18/28/48 Service Manual
Lifestyle®18/28/35 Essentials Kit Part List
Refer to figure 4
Item
Number
Description Part Number Variant Packaging QTY Note
REMOTE CONTROL 256119-001 US, CAN, AUS, EU, UK, SE ASIA/EAST ASIA,
SING
1
REMOTE, CONTROL EU, 40MHZ 256119-002 S. AF, MID E, DUAL-V
1
2 BATTERY, AAA SIZE 179223-01 ALL 4
ANTENNA, FM DIPOLE, F-CONN 148589 US, CAN, DUAL-V
3ANTENNA, FM DIPOLE, PAL CONN 143185 AUS, EU, UK, SE ASIA/EAST ASIA, SING, S.
AF, MID E, DUAL-V
1
POWER PACK, 35W, 120V, DCS-91 256764-001 US, CAN
POWER PACK, 35W, 230V, DCS-92 256764-007 AUS, UK, SE ASIA/EAST ASIA, SING
4
POWER PACK, 35W, DUAL-V, DCS-94 256764-004 EU, LATIN AMERICA, S. AF, MID E, DUAL-V
1 3
5 ANTENNA, ASSY, AM 199824-002 ALL 1
6 TV POWER SENSOR 258359 ALL 1
LINE CORD, 120V, AV28 258491-001 US, CAN, DUAL-V
LINE CORD, 220V, AV28 148203 EU, LATIN AMERICA, MID E, S. AF, SE
ASIA/EAST ASIA, DUAL-V
LINE CORD, 230V, AV28 134725 UK, SING
7
LINE CORD, 240V, AV28 134726 AUS
1 3
LINE CORD, 120V, PS18/28/48 263453-006 US, CAN, DUAL-V
LINE CORD, 220V, PS18/28/48 264355-006 EU, LATIN AMERICA, MID E, S. AF, SE
ASIA/EAST ASIA, DUAL-V
LINE CORD, 230V, PS18/28/48 264356-006 UK, SING
8
LINE CORD, 240V, PS18/28/48 264357-006 AUS
1 3
9 BAG, POLY, 3X3MIL 194392 ALL 1
10 IR BLASTER 260335 ALL 1
11 TRAY PACK INSERT 258471 ALL 1
12 CARTON, ACCY KIT 258470-001
ALL 1
13 KIT, ADAPTIQTM 258363 ALL 1
14 SCART ADAPTOR 266221-001 AUS, SING, EU, UK, SE ASIA/EAST ASIA, S.
AF, MID E, DUAL-V 1
LIT KIT, LS18 268793-1 US, CAN, LATIN AMERICA
LIT KIT, LS18 268793-2 EU, S. AF, MID E
LIT KIT, LS18 268793-4 AUS, UK, SING, SE ASIA/EAST ASIA
LIT KIT, LS28 266219-1 US, CAN, LATIN AMERICA
LIT KIT, LS28 266219-2 AUS, EU, S. AF, MID E
LIT KIT, LS28 266219-4 UK, SING, SE ASIA/EAST ASIA
LIT KIT, LS35 266220-1 US, CAN, LATIN AMERICA
LIT KIT, LS35 266220-2 AUS, EU, S. AF, MID E
15
LIT KIT, LS35 266220-4 UK, SING, SE ASIA/EAST ASIA
1

9
PS18/28/48 Service Manual
12
3
9
5
6
7
8
4
10
11
12
13
14
15
Figure 4. LS18, 28, 35 Essentials Kit Exploded View

10
PS18/28/48 Service Manual
Lifestyle®18 Lit Kit Part List
Description Part Number Variant Packaging QTY Note
FOOT, CUBES 178321-04 ALL 4
FOOT, BASS MODULE 142839 ALL 4
OPERATING GUIDE, 3 LANG 269711 ALL
OPERATING GUIDE, 5 LANG 269713 EU, S. AF, MID E, DUAL-V
1
INSTALL GUIDE, 3 LANG 269712 US, CAN, AUS, UK, EU, S. AF, MID E,
SING, SE ASIA/EAST ASIA, DUAL-V
INSTALL GUIDE, 5 LANG 269714 EU, S. AF, MID E, DUAL-V
1
BAG, POLY, 14.38x9.87x2 mil 103351 ALL 1
CARD, INFO, WARRANTY, MULTI LANG 181460 EU, S. AF, MID E, DUAL-V, AUS, UK,
SING, SE ASIA/EAST ASIA, DUAL-V
SHEET SLIP COMPONENT AUDIO 255805 ALL 1
ADDRESS PAGE 259434 US, CAN, LATIN AMERICA 1
CARD REGISTRATION AND
WARRANTY
262933 US, CAN, LATIN AMERICA 1
CARD, LIFESTYLE UPDATE 268157 US, CAN, LATIN AMERICA 1
DEC OF CONF 268794 AUS, UK, SING, SE ASIA/EAST ASIA,
DUAL-V 1
Lifestyle®28 Lit Kit Part List
Description Part
Number
Variant Packaging QTY NOTE
FOOT, CUBES 178321-04 ALL 4
FOOT, BASS MODULE 142839 ALL 4
OPERATING GUIDE, 3 LANG 264341 ALL
OPERATING GUIDE, 5 LANG 264342 AUS, EU, S. AF, MID E.
1
INSTALL GUIDE, 3 LANG 264343 ALL
INSTALL GUIDE, 5 LANG 264344 AUS, EU, S. AF, MID E.
1
BAG, POLY, 14.38x9.87x2 mil 103351 ALL 1
CARD, INFO, WARRANTY, MULTI LANG 181460 AUS, EU, S. AF, MID E., UK, SING, SE
ASIA/EAST ASIA 1
SHEET SLIP COMPONENT AUDIO 255805 ALL 1
ADDRESS PAGE, BOSE 259434 US, CAN, LATIN AMERICA 1
CARD REGISTRATION AND WARRANTY 262933 US, CAN, LATIN AMERICA 1
CARD, LIFESTYLE UPDATE 268157 US, CAN, LATIN AMERICA 1
DEC OF CONF 266994 AUS, EU, S. AF, MID E., UK, SING, SE
ASIA/EAST ASIA 1
Lifestyle®35 Lit Kit Part List
Description Part
Number
Variant Packaging QTY NOTE
FOOT, CUBES 183621 ALL 4
FOOT BASS MODULE 142839 ALL 4
OPERATING, GUIDE, 3 LANG 264341 ALL
OPERATING GUIDE, 5 LANG 264342 AUS, EU, S. AF, MID E.
1
INSTALL GUIDE, 3 LANG 264343 ALL
INSTALL, GUIDE, 5 LANG 264344 AUS, EU, S. AF, MID E.
1
BAG, POLY, 14.38x9.87x2 mil 103351 ALL 1
CARD, INFO, WARRANTY, MULTI LANG 181460 AUS, EU, S. AF, MID E., UK, SING, SE
ASIA/EAST ASIA 1
SHEET SLIP COMPONENT AUDIO 255805 ALL 1
ADDRESS PAGE, BOSE 259434 US, CAN, LATIN AMERICA 1
CARD REGISTRATION AND WARRANTY 262933 US, CAN, LATIN AMERICA 1
CARD, LIFESTYLE UPDATE 268157 US, CAN, LATIN AMERICA 1
DEC OF CONF 266994 AUS, EU, S. AF, MID E., UK, SING, SE
ASIA/EAST ASIA 1

11
PS18/28/48 Service Manual
Lifestyle
®
18 Single Cube Speaker, 5 Pack Packaging List
Item
Number
Description Part Number Qty Note
1 SATELLITE ASSEMBLY, SINGLE, BLACK
SATELLITE ASSEMBLY, SINGLE, WHITE
250490-119
250490-129
5
2 CABLE, RJ-45/8 PIN DIN 260351-0021
3 CABLE, AUDIO, DUAL RCA 185931-01 1
4 CABLE, VIDEO, 6', YL 183200 1
5 CABLE, S-VIDEO, 6’ 258369 1
6 CABLE, COMPONENT, VIDEO, ADAPTOR 260350 1
7 CABLES, SPKR, 18 AWG, L/C/R, BLACK
CABLES, SPKR, 18 AWG, L/C/R, WHITE
180643-4
176201-4
1
8 CABLE, SPEAKER, REAR, BLACK
CABLE, SPEAKER, REAR, BLACK
180644
176202
1
9 BAG, POLY, 10X12X2mil 144677 5
10 PACKING, INSERT 258473 1
11 CARTON, CHIPBOARD, SATELLITE 250555-001 5
12 CARTON, D/C 258472-001 1
Lifestyle®28 Double Cube Speaker, 5 Pack Packaging List
Item
Number
Description Part Number Qty Note
1 SATELLITE ASSEMBLY, SINGLE, BLACK
SATELLITE ASSEMBLY, SINGLE, WHITE
192420-119
192420-129
5
2 CABLE, RJ-45/8 PIN DIN 260351-002 1
3 CABLE, AUDIO, DUAL RCA 185931-01 1
4 CABLE, VIDEO, 6', YL 183200 1
5 CABLE, S-VIDEO, 6' 258369 1
6 CABLE, COMPONENT, VIDEO ADAPTOR 260350
7 CABLES, SPKR, 18 AWG, L/C/R, BLACK
CABLES, SPKR, 18 AWG, L/C/R, WHITE
180643-4
176204-4
1
8 CABLE, SPEAKER, REAR, BLACK
CABLE, SPEAKER, REAR, WHITE
180644
176202
1
9 BAG, POLY, 10X12X2 mil 144677 5
10 PACKING, INSERT 258473
11 CARTON, CHIPBOARD, SATELLITE, BLUE 197330-002 5
12 CARTON, D/C, SAT KIT 258472-001 1
Lifestyle®35 Jewel Cube®Speaker, 5 Pack Packaging List
Item
Number
Description Part Number Qty Note
1 JEWEL CUBE SPEAKER, BLACK
JEWEL CUBE SPEAKER, WHITE
194420-019
194420-029
5
2 CABLE, RJ-45/8 PIN DIN 260351-002 1
3 CABLE, AUDIO, DUAL RCA 185931-01 1
4 CABLE, VIDEO, 6', YL 183200 1
5 CABLE, S-VIDEO, 6' 258369 1
6 CABLE, COMPONENT, VIDEO ADAPTOR 260350
7 CABLESET, 3PK, L/C/R, BLACK
CABLESET, 3PK, L/C/R, WHITE
193145-04
193145-14
1
8 CABLESET, 2PK, LS/RS, BLACK
CABLESET, 2PK, LS/RS, WHITE
193146-03
193146-13
1
9 BAG, POLY, 3X3.5X.004 185214 5
10 SATELLITE TRAY 190211-001 1
11 CARTON, D/C, SAT KIT 258472-001 1
12 PACKING, INSERT 258473 1
13 PACKING, PULL TAB, 2.25X1.75 188029-001 5

12
PS18/28/48 Service Manual
12
1
2
3
5
8 7
6
9
4
10
11
1
2
7
8
6435
10
913
12
Figure 5. LS18, 28 Cube Pack Exploded View
Figure 6. LS35 Cube Pack Exploded View

13
PS18/28/48 Service Manual
Jewel Cube®Part List
1
2
3
4
5
6
7
8
9x8
x8
x2
Figure 7. Jewel Cube Exploded View
Item
Number
Description Part Number Qty Note
1 TWIDDLERTM ASSY, 50MM 195840 2
2 GRILLE, CUBE, BLACK, W/O SLOT
GRILLE, CUBE, WHITE, W/O SLOT
192935-01
192935-03
1
3 GRILLE, CUBE, BLACK, W/SLOT
GRILLE, CUBE, WHITE, W/SLOT
192935-02
192935-04
1
4 SNAP RING 178709 1
5 H-RING, SEAL, BLACK
H-RING,SEAL NATURAL
178710-01
178710-02
2
6 HARNESS ASSY, TWIDDLER 196136-01 1
7 SCREW, HILO, 4-16x.375, PAN, XREC 181621-06 8
8 DAMPER, ANTI-BUZZ 185951 8
9 NAMEPLATE, BOSE, BLACK/PEWTER
NAMEPLATE, BOSE, WHITE/PEWTER
178725-01
178725-02
1

14
PS18/28/48 Service Manual
Single and Dual Cube Speaker Part List
Figure 8. Cube Exploded View
Release the grille
from these catches
1
2
Item
Number
Description Part Number Qty Note
1 GRILLE, BLACK
GRILLE, WHITE
192410-019
192410-029
2
2 LOGO, 1" DIAMOND CUT, BLACK
LOGO, 1" DIAMOND CUT, WHITE
193250-11
193250-12
1

15
PS18/28/48 Service Manual
810
5
4
7
3
9
1
2
11
6
Item
Number
Description Part Number Qty Note
1 AMP MODULE ASSY, 120V
AMP MODULE ASSY, 230V
AMP MODULE ASSY, 100V
AMP MODULE ASSY, DUAL-V
277096-132F
277096-631F
277096-631F
277096-631F
1 1, 4
2 SCREW, TAPP, 8-11x.75, PAN, XRC/SQ 172672-12 14
3 GRILLE, BLACK
GRILLE, WHITE
256761-001
256761-002
1
4 COVER, REAR, BLACK
COVER, REAR, WHITE
256762-001
256762-002
1 3
5 SCREW, 8-32X.75, RLX, PN, QDRX, BLACK
SCREW, 8-32X.75, RLX, PN, QDRX, WHITE
260400-12
193637-20
2
6 SCREW TAPP, 8-11X1.25, PAN, XRS/C 172672-20 2
7 LOGO, NAMEPLATE, GRILL, BLACK
LOGO, NAMEPLATE, GRILL, WHITE
258484-01
258484-02
1
8 INSERT, PLASTIC, REAR COVER, BLACK
INSERT, PLASTIC, REAR COVER, WHITE
258485-01
258785-02
1
9 GASKET, GILLE EDGE 260349 2
10 TAPE, VHB, REAR, COVER, PLUG 262871 1
- WOOFER ASSY,5.25" 2.33 OHM 256765 2
- GASKET, WOOFER 263455 2
PS18/28/48 Bass Module Assembly Part List
Important - Note 4. This part is set to the Lifestyle®28/38 system equalization. To use this part on
a Lifestyle®18, 35 or 48 system, refer to the instructions located on page 31 for setting the Equal-
izer using TAP commands. Except for the Lifestyle®18 system, in place of using TAP commands to
set the EQ, the customer may use the Bose®AdaptIQTM audio calibration system to customize the
EQ to their room. The Lifestyle®18 system bass module is set to provide a lower outut to match
the single cubes, which can only be set using TAP commands.The AdaptIQ audio calibration
system is shipped with the Lifestyle®18,28,35,38,48 system.
For other notes referenced, refer to the part list notes at the beginning of the part list section.
Figure 9. Bass Module Exploded View

16
PS18/28/48 Service Manual
PS18/28/48 Amplifier Module Assembly Part List
Item
Number Description Part Number Qty Note
11 POWER PCB ASSY, 120V
POWER PCB ASSY, 230V
POWER PCB ASSY,120V/100V
POWER PCB ASSY, DUAL-V
285837-001
285837-002
285837-003
285837-006
1 1, 2, 3
12 AMPPCB ASSY285826-001 11, 2
13 DSP PCBASSY285828-101 1 1, 2, 4
14 ENCLOSURE, HEATSINK 266998-001 1 3
15 HOUSING, LOWER, AMPLIFIER 256142-001 1 3
16 HEATSINK, ASSY, DSP 260369 1
17 PAD, CONDUCTIVE, THERMAL 258353-001 1
18 PAD, CONDUCTIVE, THERMAL 258356-001 1
19 SCREW, 6-32X1/2 THREAD ROLLING 258492-08 18
20 GASKETING, EMI 256826-001 1
21 GASKETING, EMI 256826-002 1
22 GASKET, CONNECTOR 256827 1
23 BAR, SPRING, POWER AMPS 260375 1
24 FOAM, SHIM, DIODES 258483 1
25 CLIP, GROUNDING, FINGER STOCK 262870-001 4
26 PAD, HEXAGON, .433 X .063 262869 3
27 SHIM, ELECTRONICS MODULE 263456 1
28 GASKET FOAM EMI 262635-025 1
- FOAM, SHIM, POWER AMP 263454 1
21
20
19
19
11
27
22
15
24
11
26
23
12
13
25
18
16
17
14
2 of 2
1 of 2
28
Figure 10. Amplifier Module Exploded View

17
PS18/28/48 Service Manual
Power PCB Assembly 260327-XXXX, PCB 266459-001
PS18/28/48 Electrical Part List
Resistors
Reference
Designator Description Part Number Note
R101 10 OHM, 1206, 1/8W, 5% 124895-1005
R102 33 OHM, 1206, 1/8W, 5% 124895-3305
R103 10 OHM, 1206, 1/8W, 5% 124895-1005
R104 100 OHM, 1206, 1/8W, 5% 124895-1015
R106 1.00K, 1206, 1/8W, 5% 124895-1025
R107 2.0K, 0603, .1W, 5% 199403-202
R109 20K, 0603, .1W, 5% 199403-203
R110 1M, 0603, .1W, 5% 199403-105
R111 43.2K, 0603, .1W, 1% 191465-4322
R112 60.4K, 0603, .1W, 1% 191465-6042
R113 47.5K, 0603, .1W, 1% 191465-4752
R121 75.0K, 1206, 1/8W, 1% 124894-7502
R122 75.0K, 1206, 1/8W, 1% 124894-7502
R123 75.0K, 1206, 1/8W, 1% 124894-7502
R124 75.0K, 1206, 1/8W, 1% 124894-7502
R127 9.1M, 0603, .1W, 5% 199403-915
R128 220K, 0603, .1W, 5% 199403-224
R129 261K, 1206, 1/4W, 1% 124894-2613
R150 681 OHM, 1206, 1/8W, 1% 124894-6810
R151 2.87K, 0603, 100MW, 1% 191465-2871
R152 20K, 0603, .1W, 5% 199403-203
R153 75.0K, 1206, 1/8W, 1% 124894-7502
R154 75.0K, 1206, 1/8W, 1% 124894-7502
R155 75.0K, 1206, 1/8W, 1% 124894-7502
R156 75.0K, 1206, 1/8W, 1% 124894-7502
R157 261K, 1206, 1/4W, 1% 124894-2613
R158 220 OHM, 1206, 1/4W, 5% 124895-2215 DUAL-V
R159 220 OHM, 1206, 1/4W, 5% 124895-2215 DUAL-V
R160 220 OHM, 1206, 1/4W, 5% 124895-2215 DUAL-V
R161 220 OHM, 1206, 1/4W, 5% 124895-2215 DUAL-V
R201 10 OHM, FUSING, AX, RAD TAPE 260352-100 3
R202 10 OHM, FUSING, AX, RAD TAPE 260352-100 3
R207 100K, 0603, .1W, 1% 191465-1003
R208 10K, 0603, .1W, 1% 191465-1002
R212 10K, 0603, .1W, 1% 191465-1002
R213 10K, 0603, .1W, 1% 191465-1002
R216 68.1K, 0603, .1W, 1% 191465-6812
R217 13.7K, 0603, 0.1W, 1% 191465-1372
R218 5.11K, 0603, .1W, 1% 191465-5111
R219 2.1K, 0603, .1W, 1% 191465-2101
R220 432 OHM, 0603, .1W, 1% 191465-4320
R223 432 OHM, 1206, 1/4W, 1% 124894-4320
R224 2.0K, 0603, .1W, 5% 199403-202
R225 49.9K, 0603, .1W, 1% 191465-4992
R226 432 OHM, 0603, .1W, 1% 191465-4320
R227 3.01K, 0603, .1W, 1% 191465-3011
R228 432 OHM, 0603, .1W, 1% 191465-4320
R229 3.01K, 0603, .1W, 1% 191465-3011
R230 100K, 0603, .1W, 1% 191465-1003
R231 100K, 0603, .1W, 1% 191465-1003

18
PS18/28/48 Service Manual
Power PCB Assembly 260327-XXXX, PCB 266459-001
PS18/28/48 Electrical Part List
Resistors (continued)
Capacitors
Reference
Designator Description Part Number Note
R234 5.9K, 0603, .1W, 1% 191465-5901
R235 10K, 0603, .1W, 1% 191465-1002
R236 2.2 OHM, FUSING, 1/2W, 5% 188460-2R2 3
R237 2.2 OHM, FUSING, 1/2W, 5% 188460-2R2 3
R238 100K, 0603, .1W, 1% 191465-1003
R300 2.00K, 1206, 1/8W, 5% 124895-2025
R301 2.49K, 1206, 1/8W, 1% 124894-2491
R303 20K, 0603, .1W, 5% 199403-203
R304 20K, 0603, .1W, 5% 199403-203
R305 18.7K, 0603, .1W, 1% 191465-1872
R306 2.87K, 0603, 100MW, 1% 191465-2871
R403 261K, 1206, 1/4W, 1% 124894-2613
R404 18.7K, 0603, .1W, 1% 191465-1872
R405 91K, 0603, .1W, 5% 199403-913
R406 390 OHM, 0603, .1W, 5% 199403-391
R407 261K, 1206, 1/4W, 1% 124894-2613
R410 261K, 1206, 1/4W, 1% 124894-2613
R411 261K, 1206, 1/4W, 1% 124894-2613
Reference
Designator Description Part Number Note
C101 0.1uF, FILM, X1, 310VAC, 15MM 260387-104B 3
C101 0.1uF, FILM, X2, 275VAC, 15MM 268166-104B 3
100V,
230V,
DUAL-V
C102 0.1uF, FILM, X1, 310VAC, 15MM 260387-104B
C102 0.1uF, FILM, X2, 275VAC, 15MM 268166-104B 100V,
230V,
DUAL-V
C103 1.5nF, FILM, Y2, 250VAC 254145-152A 3
C104 1.5nF, FILM, Y2, 250VAC 254145-152A 3
C106 .47uF, BOX, 85, 50V, 5% 137127-474
C110 .470uF, EL, 105, 250V, 20% 170170 3
C111 .470uF, EL, 105, 250V, 20% 170170 3
C112 .047uF, FILM, 630VDC, 85, 10% 260357-473T21
C113 470pF, MICA, 10%, 500V 254164-471B
C114 470pF, MICA, 10%, 500V 254164-471B
C115 18000pF, FILM, 2KVDC, 5% 258419-183C
C117 1.0uF, EL, 105, 50V, 20% 196991-1R0H
C118 10uF, EL, 105, 25V, 20% 196991-100E
C119 .47uF, BOX, 85, 50V, 5% 137127-474
C120 .01uF, 0603, X7R, 50V 191470-103
C121 .01uF, 0603, X7R, 50V 191470-103

19
PS18/28/48 Service Manual
Power PCB Assembly 260327-XXXX, PCB 266459-001
PS18/28/48 Electrical Part List
Capacitors (continued)
Diodes
Reference
Designator Description Part Number Note
C122 220pF 0603, COG, 50V, 5% 188454-221
C126 .047uF, 0603, X7R, 5%, 25V 196999-473
C128 .047uF, 0603, X7R, 5%, 25V 196999-473
C129 .47uF, BOX, 85, 50V, 5% 137127-474
C130 .047uF, 0603, X7R, 5%, 25V 196999-473
C201 5.6uF, FILM, 10%, 100VDC 260333-565C
C202 5.6uF, FILM, 10%, 100VDC 260333-565C
C211 1.0uF, FILM, 10%, 100 VDC 260333-105A
C212 1.0uF, FILM, 10%, 100 VDC 260333-105A
C213 10uF, EL, 105, 25V, 20% 190382-100E
C214 10uF, EL, 105, 25V, 20% 190382-100E
C215 .022uF, 0603, X7R, 25V 196999-223
C219 .047uF, 0603, X7R, 5%, 25V 196999-473
C220 .047uF, 0603, X7R, 5%, 25V 196999-473
C233 .001uF, BOX, 85, 100V, 5% 137127-102
C234 .001uF, BOX, 85, 100V, 5% 137127-102
C235 .001uF, BOX, 85, 100V, 5% 137127-102
C236 .001uF, BOX, 85, 100V, 5% 137127-102
C237 3300pF, 1206, X7R, 50V, 10% 124957-332
C238 3300pF, 1206, X7R, 50V, 10% 124957-332
C239 3300pF, 1206, X7R, 50V, 10% 124957-332
C240 22uF, EL, 105, 63V, 20% 196991-220I
C241 22uF, EL, 105, 63V, 20% 196991-220I
C255 .1uF, 0805, X7R, 10%, 25V 181264-104
C256 .1uF, 0805, X7R, 10%, 25V 181264-104
C300 .47uF, BOX, 85, 50V, 5% 137127-474
C301 .047uF, 0603, X7R, 5%, 25V 196999-473
C401 100pF, 0603, COG, 50V, 5% 188454-101
C402 47uF, EL, 105, 16V, 20% 126767-470 DUAL-V
C408 .047uF, FILM, 630VDC, 85, 10% 260357-473T21 DUAL-V
Reference
Designator Description Part Number Note
BR1 BRIDGE, 600V, 4A 256789-600 3
D101 MMBD914LT1, SOT 148582
D102 MMBD914LT1, SOT 148582
D103 MMBD914LT1, SOT 148582
D105 MMBD914LT1, SOT 148582
D106 MMBD914LT1, SOT 148582
D108 SHOTTKY, BAT42W, SOD-123 196984-002
D111 MMBD914LT1, SOT 148582
D112 SHOTTKY, BAT42W, SOD-123 196984-002
D150 BAV70, SOT-23 147249
D201 PWR SCHOTTKY, 8AX2, 80V 258432-080
D202 MMBD914LT1, SOT 148582
D203 PWR SCHOTTKY, 8A, 80V 258437-080
D204 PWR SCHOTTKY, 8A, 80V 258437-080
D205 MMBD914LT1, SOT 148582
D206 MMBD914LT1, SOT 148582