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

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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

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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

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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