BOSE 294955-SM Schematic

FreeSpace® DS 100SE and

DS100F Loudspeakers

(Surface Mount and Flush Mount Versions)

©2008 Bose Corporation

Service Manual

Reference Number 294955-SM Rev . 01

CONTENTS

Warranty Information.........................................................................................................................2

Specifications................................................................................................................................ 3-4

FreeSpace

FreeSpace DS 100F Flush-Mount Loudspeaker ........................................................................... 4

Product Description, FreeSpace DS 100SE Surface-Mount Loudspeaker ................................ 5

Product Description, FreeSpace DS 100F Flush-Mount Loudspeaker ...................................... 6

Part List Notes ..................................................................................................................................6

Packaging List, FreeSpace DS 100SE Loudspeaker ....................................................................7

Figure 1. FreeSp ace DS 100SE Packaging V iew.............................................................................7

Packaging List, FreeSpace DS 100F Loudspeaker....................................................................... 8

Figure 2. FreeSp ace DS 100F Packaging V iew................................................................................8

Main Part List, FreeSpace DS 100SE Loudspeaker (see Figure 3) .............................................9

Figure 3. FreeSp ace DS 100SE Exploded View.............................................................................10

Main Part List, Mounting Bracket (included with loudspeaker) ................................................11

Figure 4. Mounting Bracket Exploded View.....................................................................................11

Main Part List, FreeSpace DS100F Loudspeaker (see Figure 5) .............................................. 12

Figure 5. FreeSp ace DS100F Exploded View.................................................................................13

Disassembly Procedures ......................................................................................................... 14-16

FreeSpace DS 100SE Surface-Mount Loudspeaker ............................................................. 14-15

FreeSpace DS 100F Flush-Mount Loudspeaker ................................................................... 15-16

Test Procedures ....................................................................................................................... 17-18

FreeSpace DS 100SE Surface-Mount Loudspeaker ................................................................... 17

FreeSpace DS 100F Flush-Mount Loudspeaker ......................................................................... 18

Figure 6. FreeSpace DS 100SE Surface Mount Speaker Wiring Diagram ....................................19

Figure 7. FreeSp ace DS 100F Flush Mount Speaker Wiring Diagram............................................19

Service Manual Revision History .................................................................................................20

®

DS 100SE Surface-Mount Loudspeaker ................................................................... 3

CAUTION: The Bose® FreeSpace DS 100F and DS 100SE Loudspeakers

contain no user-serviceable parts. To prevent warranty infractions,

refer servicing to warranty service stations or factory service.

WARRANTY INFORMATION

The Bose FreeSpace DS 100F and DS 100SE Loudspeakers

are covered by a 5-year transferable limited warranty .

PROPRIET ARY INFORMATION

THIS DOCUMENT CONT AINS PROPRIET ARY INFORMA TION OF
BOSE CORPORA TION 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.

2

SPECIFICATIONS

FreeSpace® DS 100SE Surface-Mount Loudspeaker

Electrical

Loudspeaker Impedance: 8 ohms
Power Handling: 100 Watts
Transformer Taps in 70V Mode: 12.5, 25, 50 and 100W
Transformer Taps in100V Mode: 25, 50 and 100W
Bypass Mode: 8 Ohms

Acoustical

Sensitivity: 85 dB SPL @1W/1m.
Maximum Sound Pressure Level: 105 dB SPL @ 1m (pink noise)
Frequency Range: 55Hz - 16kHz
Radiation Pattern: 180 degrees x 75 degrees avg from

800 Hz - 5 kHz

Compression: <3 dB with 100W watt sine wave measured in

8 ohm bypass mode
Distortion: <30% at 200W sine wave
Port Noise: < -40dB (from fundamental)

Mechanical

Dimensions: Single Speaker: 15" W x 8.5" D x 7" H (38.1 x 21.6 x 17.8 cm)

Packed System 18.5" W x 13.25" D x 10.75" H

(47 x 33.7 x 27.3 cm)
Weight: Single Speaker: 13.5 lbs (6.1 kg)

Packed System: 16 lbs (7.3 kg)

3

SPECIFICATIONS

FreeSpace® DS 100F Flush-Mount Loudspeaker

Electrical

Loudspeaker Impedance: 8 ohms
Power Handling: 100 Watts.
Transformer Taps in 70V Mode: 12.5, 25, 50 and 100W
Transformer Taps in100V Mode: 25, 50 and 100W
Bypass Mode: 8 Ohms

Acoustical

Sensitivity: 85 dB SPL @1W/1m
Maximum Sound Pressure Level: 105 dB SPL @ 1m (pink noise)
Frequency Range: 55Hz - 16kHz
Radiation Pattern: 160 degrees conical averaged from

800 Hz to 5 kHz.
Compression: <3 dB with 100W watt sine wave
Distortion: <30% at 200W sine wave
Port Noise: < -40dB (from fundamental)

Mechanical

Dimensions: Single Speaker: 11"H x 7.5"D (28 x 19 cm)

Packed System: 14"L x 14"W x 12.5"H (35.5 x 35.5 x 31.8 cm)

System Weight: Single S peaker: 11.5 lb (5.2 kg)

Packed System: 15 lb (6.8 kg)

4

PRODUCT DESCRIPTION

FreeSpace® DS 100SE Surface-Mount Loudspeaker

The FreeSpace DS 100SE loudspeaker is the medium level surface mount speaker for Bose
business music applications. It consists of two 2 ¼” drivers mounted in a rotatable array and a
single 5 ¼” woofer assembled in a rugged, plastic enclosure. The speaker is intended for indoor
and outdoor use and is qualified to end use environment J (Fully Exposed to Weather – Com­mercial). It is available in color versions, black and white. The FreeS p ace DS 100SE can be
used on the same line as the flush-mount variant, the FreeSp ace DS 100F.

The DS 100SE speaker comes with a bracket in the box and is available in black and white. The
basic bracket that ships with the speaker allows for 0 to -45 degree pitch when the speaker is
mounted in the horizontal direction. The basic bracket will allow 0 to -30 degree pitch when the
speaker is mounted in the vertical orientation.

The DS 100SE has passed extensive testing and complies with the following specifications and
uses:

LISTED to ANSI/UL 1480-2005

®

• Fire Protective Signaling Use – UL Category UUMW , File Number S 3241.

Control Number 42S9 when installed with a junction box (on-wall or in-wall).
Not for use with DC-supervised systems.

• General Purpose Use – UL Category UEAY , File Number S 5591 Control Number 3N89.

• Suitable for use outdoors in wet locations.

• Suitable for installation using Class 1, Class 2, or Class 3 wiring methods in accordance with

NFP A 70, National Electric Code, 2002, Article 640.

• Suitable for use with fire alarm circuit wiring methods in accordance with NFPA 70, National

Electric Code, 2002, Article 760.

• EMC Directive 89/336/EEC and Article 10 (1) of the directive, EN50081-1 and EN50082-1 as

signified by the CE mark.

The DS 100SE also has been designed to the requirements defined in the following European
regulatory specification for combination systems:

• British Standard Code of Practice BS 5839, Part 8.

• T ested to IEC60268-5.

The FreeSpace DS 100SE is RoHS (RoHS Directive 2002/95/EC) and WEEE (WEEE Directive
2002/96/EC) compliant.

DS 100SE Flush Loudspeaker Accessories:

- In-wall junction box

- On-wall junction box

- Bracket assembly, black and white

- Trim plate kit (US only), black and white

- EQ curves to be provided in tech data sheets and for Bose electronics

5

PRODUCT DESCRIPTION

FreeSpace® DS 100F Flush-Mount Loudspeaker

The FreeSpace DS 100F loudspeaker is the medium level flush-mount speaker for Bose
business music applications. It consists of a single 2 ¼” driver and a 5 ¼” woofer housed in a
rugged, metal enclosure with a front plastic baffle. The product is intended for indoor use only
and will be qualified to end use environment B (Not Exposed to Weather – Commercial). It is
available in two color versions, black and white. The FreeS p ace DS 100F can be used on the
same line as the surface-mount variant, the FreeSpace DS 100S. The FreeSpace DS 100F
loudspeaker has passed extensive testing and complies with the following specifications and
uses:

LISTED to ANSI/UL 1480-2005

®

• Fire Protective Signaling Use – UL Category UUMW, File Number S 3241. Control Number

42S9. Not for use with DC-supervised systems.

• General Purpose Use – UL Category UEA Y, File Number S 5591 Control Number 3N89.

• Suitable for use indoors in damp locations.

• Suitable for installation using Class 1, Class 2, or Class 3 wiring methods in accordance with

NFP A 70, National Electric Code, 2002, Article 640.

• Suitable for use with fire alarm circuit wiring methods in accordance with NFPA 70, National

Electric Code, 2002, Article 760.

• Not intended for use in air handling (plenum) spaces.

• EMC Directive 89/336/EEC and Article 10 (1) of the directive, EN50081-1 and EN50082-1 as

signified by the CE mark.
The DS 100F also has been designed to the requirements defined in the following European

regulatory specifications for combination systems:

• British Standard Code of Practice BS 5839, Part 8 (when used with the PC-16).

• Tested to IEC60268-5.

The FreeSpace DS 100F is RoHS (Directive 2002/95/EC) and WEEE (Directive 2002/96/EC)
compliant.

DS 100F Flush Loudspeaker Accessories

- Tile bridge for suspended ceilings

- Rough-in pan (for hard-deck ceilings)

- Pendant kit (aesthetic cover and hardware)

- EQ curves will be provided in tech data sheets and standard Bose electronics

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 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. 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.

6

PACKAGING LIST

Item

Description Bose® Part

Vendor Part

Qty. Note

FreeSp ace® DS 100SE Loudspeaker

Number

1 CARD, INSTALLATION - 3050-4481+0 1 4
2 OWNER’S MANUAL 300289 4301-7260+1 1
3 POLY BAG - 1497-4972+0 1 4
4 FOAM, POLY 299568 1490-4631+0 2
5 BRACKET, WALL MOUNT, BLK 315824-001S 4155-3411+0 1

BRACKET, WALL MOUNT, WHT 315824-002S 4155-3412+0
6 CARTON 299567 1437-8801+0-2
7 BAG, BUBBLE - 1497-2812+0 1 4

Number

Number

1

1

2

3

42x

7

6

5

Figure 1. FreeSpace DS 100SE Packaging View

7

PACKAGING LIST

Item

Description Bose®

Vendor Part

Qty. Note

FreeSp ace® DS 100F Loudspeaker

Number

1 PAPER COVER 299575 1450-9270+0 1
2 PAPER TOP 299576 1450-9190+0 1
3 HDPE BAG - 1497-7492+0 1 4
4 PAPER SURROUND 299577 1450-9210+0 4
5 DS 100F LOUDSPEAKER REF - 1
6 PAPER BOTTOM 299578 1450-9200+0 1
7 CARTON 299574 1437-8701+0-2 1

Part

Number

Number

Figure 2. FreeSpace DS 100F Packaging View

8

MAIN PART LIST

Item

Description Bose® Part

Vendor Part Num ber Qty. Note

FreeSp ace® DS 100SE Loudspeaker (see Figure 3)

Number

1 GRILLE CAP, BLACK

GRILLE CAP, WHITE

2 GRILLE, ASSY, BLACK

GRILLE, ASSY, WHITE
(Includes logo, screw, spring

and washers)
3 SCREW, M4x8 - 2950-4008+H000 4 4
4 DRIVER, 2.25” W/GASKET 299562 SVC-8900-3850+0 2
5 SCREW, M4x16 - 2954-4016+H000 18 4
6 WOOFER, 5.25” W/GASKET 299563 SVC-8900-6800+0 1
7 SCREW, M4x16 - 2954-4016+H000 12 4
8 BAFFLE - 4155-2101+2 1 4
9 CROSSOVER PCB ASSY 299569 SVC-SCURL11+PCB 1 2

10 ENCLOSURE, BLACK

ENCLOSURE, WHITE

11 BRACKET ARM

(includes 4 mounting screws, 4

washers, 1 pivot screw)

BLACK

WHITE

12 SCREW, M4x16 - 2954-4016+H000 4 4
13 WASHER - 2600-4008+0767 2 4
14 CONNECTOR - 7012-7710+0 1 4
15 TRANSFORMER ASSY WITH

ROTARY SWITCH

16 SCREW, M4x16 - 2954-4016+H000 2 4
17 WASHER - 2600-4008+H010 3 4
18 ROTARY SWITCH - 5200-4933+0 1 4
19 KNOB, TAP 295898-003 2447-3604+1 1
20 SCREW, M4x10 - 2904-4010+H000 4 4
21 SCREW, M3x10 - 2954-3012+H000 1 4
22 SCREW, M2.6x8 - 2954-2612+H000 1 4
23 SPRING - 2510-3941+0 1 4
24 WASHER - 2600-6212+1207 2 4
25 SCREW, M3x8 - 2954-4008+H000 1 4
26 BOSE LOGO ASSY, BLACK

BOSE LOGO ASSY, WHITE

- DS100SE BRACKET ASSY
(Includes 2 doors, strain r eli ef, 4
screws, 4 washers & 1 spare
pivot screw)
BLACK
WHITE

- DS LDSPKR TRIM PLATE
(Includes any required mounting
hardware)
BLACK
WHITE

Number

299560
299561
299558
299559

- 1467-7501+0

315821-001S
315821-002S

299566 SVC-CURL11+TRAN 1

303038-001
303038-002

315253-001
315253-002

315266-001
315266-002

1467-7601+0

1467-7602+0
SVC-SCURL11+GRIL
SVC-SCURL12+GRIL

1467-7502+0

4155-3421+0

4155-3422+0

2150-7191+0

2150-7192+0

BSACDS100+08CSX1
BSACDS100+08CSX2

-

-

2
1

1 4
1

1
1

1

9

23

1

45

23 24 25

18

26

20
21 22

19

18

67

78

59

10

18

16

17

5
15

Figure 3. FreeSpace DS 100SE Exploded View

10

11

12

13

14

MAIN PART LIST

Item

Description Bose® Part

Vendor Part Number Note

Mounting Bracket (included with loudspeaker)

Number

Number

1 DS100SE Bracket Assy, Black 315253-001 BSACDS100+08CSX1

DS100SE Bracket Assy, White 315253-002 BSACDS100+08CSX2

2 DS100SE Bracket, Wall Mount

(w/strain relief, terminals & pivot
screw)
BLACK
WHITE

3 DS100SE Bracket Arm (w/4

screws, 4 washers & pivot screw)
BLACK
WHITE

4 DS100SE Bracket Pivot Screw

BLACK
WHITE

Theft-Deterrent Pivot Screw

BLACK
WHITE

5 Hardware included with item 1

(strain relief w/screw, 2 pivot

315824-001S
315824-002S

315821-001S
315821-002S

315829-001S
315829-002S

315831-001S
315831-002S

-

-

4155-3411+0
4155-3412+0

4155-3421+0
4155-3422+0

4135-8511+0
4135-8512+0

4135-8514+0
4135-8513+0

-

-

screws, 4 screws, 4 washers)

- DS100SE Bracket Hardware Kit
(2 doors, strain relief w/screw,
4 screws, 4 washers)
BLACK
WHITE

315827-001S
315827-002S

SVC-SCURL11+BKTB

SVC-SCURL12+BKTW

2

Figure 4. Mounting Bracket Exploded View

5

1

4

3

11

MAIN PART LIST

Item

Description Bose® Part

Vendor Part Number Qty. Note

FreeSp ace® DS100F Loudspeaker (see Figure 5)

Number

1 BOSE LOGO, BLACK

BOSE LOGO, WHITE

2 GRILLE ASSY, BLACK

GRILLE ASSY, WHITE
(INCLUDES LOGO AND

WASHER)
3 WASHER, SELF LOCK - 2610-4003+1207 1 4
4 DRIVER, 2.25” W/GASKET 299562 SVC-8900-3860+0 1
5 KNOB, TAP 295898-003 2447-3602+0 1
6 CAP, BAFFLE, BLACK

CAP, BAFFLE, WHITE
7 EVA GASKET - 4153-3331+0 5 4
8 BAFFLE, FRONT, BLACK

BAFFLE, FRONT, WHITE
9 CROSSOVER ASSEMBLY 299573 SVC-FCURL11+XOVE 1

10 SWITCH, ROTARY, 1P6T,

ST-700

11 PORT - 4155-1971+0 1 4
12 TRANSFORMER, AUDIO,

70V/100V

13 JUNCTION BOX - 4155-1961+0 1 4
14 TERMINAL WITH SCREWS 299572 SVC-FCURL11+TERM 1
15 SCREW, 8-23, WIRE CLAMP - 2AZZ-0003+ZZZZ 6 4
16 ENCLOSURE, BLACK - 4135-6441+0 1 4
17 COVER, JUNCTION BOX - 1404-6501+1 1 4
18 SCREW, B-TITE, BIND,

M4x14

19 WOOFER, 5.25” W/GASKET 299563 SVC-8900-6800+0 1
20 SCREW, CLASS 1, PAN,

M3.5x7

21 SCREW, B-TITE, FLAT-CS,

M3

22 SCREW, TAP-C2, BH, M4x10 - 2954-4010+3000 9 4
23 ANCHOR, BLACK

ANCHOR, WHITE

24 SCREW, B-TITE, BIND,

M4x12

25 TERMINAL BLOCK - 2113-1956+0 1 4
26 PRODUCT LABEL - 3001-1495+0 1 4
27 SCREW, M4x20, TAPPING - 2910-4020+3000 2 4
28 SCREW, B-TITE, M3x10, BLK,

ZN

29 GASKET, TRANSFORMER - 4149-0111+0 2 4
30 GASKET, WOOFER - 4153-3471+0 1 4

Number

- 2150-7181+0
2150-7182+0

299570
299571

- 4155-2031+0

- 4155-1951+0

- 5200-4933+0 1

299566 1806-3935+0 1

- 2954-4014+3000 1 4

- 2A10-3575+3000 3 4

- 2951-3010+3000 2 4

259259-001
259259-002

- 2954-4012+3000 10 4

- 2954-3010+3000 4 4

SVC-FCURL11+GRIL
SVC-FCURL12+GRIL

4155-2032+0

4155-1951+0

4154-4982+1
4154-4981+1

1 4
1

1 4

1 4

3

12

Figure 5. FreeSpace DS100F Exploded View

13

DISASSEMBLY PROCEDURES

FreeSpace® DS 100SE Surface-Mount
Loudspeaker

Note: Refer to Figure 3 for the following

procedures.

1. Grille Removal

1.1 Grasp the grille cap (1) and slide it off

toward the front of the loudspeaker. You will
need to remove both grille caps to be able to
remove the grille (2).

1.2 Using a Phillips-head screwdriver , re­move the four screws (3) that secure the
grille to the baffle (8). Lift off the grille.

2. Logo Removal

2.1 Perform procedure 1.

2.2 Using a Phillips-head screwdriver , re-

move the screw located on the logo's mount­ing post. Slide the two washers and spring
(19, 25, 26) off of the logo's post. Lift the logo
(28) off of the grille (2).

3. Tweeter Driver Removal

3.1 Perform procedure 1.

3.2 Using a Phillips-head screwdriver , re-

move the four screws (5) that secure the

2.25" driver (4) to the rotatable array section.

3.3 Lift out the driver . Disconnect the two
Faston connectors.

4.3 Lift out the tweeter section and remove
the two main baffle screws (7) that are
located underneath it. Remove the other six
screws that secure the baffle (8) to the
enclosure (10). Lift off the baffle.

5. Woofer Removal

5.1 Perform procedure 1.

5.2 Using a Phillips-head screwdriver , re-

move the four screws (7) that secure the
woofer (6) to the baffle (8).

5.3 Lift out the woofer . Disconnect the two
Faston connectors.

6. Crossover PCB Removal

6.1 Perform procedure 4.

6.2 Remove the four screws (5) that secure

the crossover PCB assembly (9) to the
enclosure.

6.3 Make a note of the wiring configuration
for use during re-assembly. Disconnect the
four Faston connectors that run from the
input cable to the crossover board. Discon­nect the two Faston connectors that run up
to the woofer. Disconnect the two Faston
connectors that run to the twiddler baffle
section. Lift out the PCB assembly.

7. TAP Rotary Switch Removal

7.1 Perform procedure 4.

4. Front Baffle Removal

4.1 Perform procedure 1.

4.2 Using a Phillips-head screwdriver , re-

move the four screws (5) that secure the
tweeter baffle section to the loudspeaker
baffle.

7.2 Using a small flat-tip screwdriver, gently
pry underneath the TAP switch knob (21) to
remove it. Take care to not mark the enclo­sure (10) or baffle (8).

7.3 Using a nut driver, remove the nut that
secures the switch to the baffle. Slide the
switch out of the baffle.

14

DISASSEMBLY PROCEDURES

8. Transformer Removal

8.1 Perform procedure 7.

8.2 Remove the four screws (5) that secure

the transformer (17) to the enclosure. Lift
out the transformer.

8.3 Make a note of the wiring configuration
and cut the wires that connect to the cross­over PCB assembly (9) as close to the board
as possible.

9. Loudspeaker Mounting Bracket
Removal

9.1 Using a Phillips-head screwdriver , re-

move the four screws (13) that secure the
mounting bracket to the back of the loud­speaker.

9.2 Slide the bracket (12) and rubber grom­met (15) away from the speaker. Slide the
bracket off of the rubber grommet.

FreeSpace® DS 100F Flush-Mount
Loudspeaker

Note: Refer to Figure 5 for the following

procedures.

1. Grille Removal

1.1 Using a small tool, such as an awl,

carefully pry the grille (2) away from the front
baffle (8). Lift off the grille.

2. Logo Removal

2.1 Perform procedure 1.

2.2 Slide the retaining washer (3) off of the

logo's post. Lift the logo (1) off of the grille
(2).

3. Tweeter Driver Removal

3.1 Perform procedure 1.

3.2 Using a Phillips-head screwdriver , re-

move the four screws (24) that secure the

2.25" driver (4) to the baffle (8).

3.3 Lift out the driver . Disconnect the two
Faston connectors from the tweeter's termi­nal strip.

4. Woofer Removal

4.1 Perform procedure 1.

4.2 Using a Phillips-head screwdriver , re-

move the four screws (18) that secure the
woofer (19) to the baffle (8).

4.3 Lift out the woofer . Disconnect the two
Faston connectors from the woofer's termi­nal strip.

15

DISASSEMBLY PROCEDURES

5. Rear Enclosure Removal

5.1 Perform procedure 1.

5.2 Using a Phillips-head screwdriver , re-

move the five screws (22) located around the
perimeter of the loudspeaker's front baffle.
Remove the one screw (22) located on the
side of the rear enclosure near the woofer.
Slide off the rear enclosure.

6. Crossover PCB Removal

6.1 Using a Phillips-head screwdriver , re-

move the five screws (22) located around the
perimeter of the loudspeaker's front baffle.
Remove the one screw (22) located on the
side of the rear enclosure near the woofer.

6.2 Disconnect the two Faston connectors
from the woofer terminal strip (14). Discon­nect the two Faston connectors from the P1
and P2 pins on the crossover PCB (9).

6.3 Perform procedure 1.

6.4 Using a Phillips-head screwdriver , re-

move the four screws (24) that secure the
tweeter to the front baffle (8). Lift out the
tweeter. Disconnect the two Faston connec­tors from the tweeter terminals. Remove the
foam batting and feed the wires out through
the hole in the tweeter enclosure.

7. TAP Rotary Switch Removal

7.1 Perform procedure 5.

7.2 Using a small flat-tip screwdriver, gently

pry underneath the TAP switch knob (5) to
remove it. Take care to not mark the enclo­sure or baffle.

7.3 Using a nut driver, remove the nut that
secures the switch (10) to the baffle. Slide
the switch out of the baffle.

8. Audio Transformer Removal

8.1 Perform procedure 7.

8.2 Make a note of the wiring configuration

of the transformer harness wiring connec­tions. Unplug the two Faston connectors
from the crossover board at P1 and P2.
Unplug the three Faston connectors from
the terminal board located on the rear
enclosure.

8.3 Remove the four screws (24) that
secure the audio transformer (12) to the
enclosure. Lift out the transformer.

6.5 Remove the four screws that
secure the crossover PCB assembly to the
enclosure. Lift off the PCB assembly.

16

TEST PROCEDURES

FreeSpace® DS 100SE Surface-Mount
Loudspeaker

1. Air Leak Test

1.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TAP rotary
switch to the 8 Ohm position.

1.2 Apply a 12.5 V rms, 80 Hz signal to the
8 Ohm input of the loudspeaker.

1.3 Listen for air leaks around the drivers,
baffle and input terminal area. Re-align or
replace any leaking gaskets. Replace any
driver that has a rubbing or ticking noise.

2. Rub and Tick Test

2.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TAP rotary
switch to the 8 Ohm position.

2.2 Apply a 12.5 V rms, 30 Hz signal to the
8 Ohm input of the loudspeaker.

2.3 Listen to the drivers for any rubbing,
ticking or other extraneous noise. Replace
any defective driver. Small ticks are accept­able if they cannot be heard at a distance of
one foot.

3. Power Sweep Test

3.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TAP rotary
switch to the 8 Ohm position.

3.2 Apply a 12.5 V rms, 50 Hz signal to the
8 Ohm input of the loudspeaker.

3.3 Slowly sweep the oscillator frequency
from 50 Hz to 5 kHz. Listen for any buzzes,
rattles or other extraneous noises from the
drivers or from the internal parts. Test sweep
time should be about 3 seconds up and 3
seconds down. Replace any driver that has
a buzzing noise.
Note: The whooshing noise from the port at
around 80Hz is acceptable.

4. Transformer TAP Select Test

4.1 Apply a 70 V rms, 100 Hz signal to the

70/100V loudspeaker input.

4.2 Slowly change the TAP selection switch
from the 100W position to the 12.5W posi­tion. A decrease in audio output level should
be heard for each descending TAP position
of the switch.

Note: There is a normal suspension noise.
To distinguish between a rub or a tick and
suspension noise, displace the cone slightly
with your finger. If the rubbing can be made
to go away or get worse, it is a rub or a tick.
If the noise stays the same, it is suspension
noise.

17

TEST PROCEDURES

FreeSpace DS 100F Flush-Mount
Loudspeaker

1. Air Leak Test

1.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TA P
rotary switch to the 8 Ohm position.

1.2 Apply a 12.5 V rms, 80 Hz signal to the
8 Ohm input of the loudspeaker.

1.3 Listen for air leaks around the drivers,
baffle and input terminal area. Re-align or
replace any leaking gaskets. Replace any
driver that has a rubbing or ticking noise.

2. Rub and Tick Test

2.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TA P
rotary switch to the 8 Ohm position.

2.2 Apply a 12.5 V rms, 30 Hz signal to the
8 Ohm input of the loudspeaker.

2.3 Listen to the drivers for any rubbing,
ticking or other extraneous noise. Replace
any defective driver. Small ticks are accept­able if they cannot be heard at a distance of
one foot.

3. Power Sweep Test

3.1 Remove the loudspeaker grille using

disassembly procedure 1. Set the TAP rotary
switch to the 8 Ohm position.

3.2 Apply a 12.5 V rms, 50 Hz signal to the
8 Ohm input of the loudspeaker.

3.3 Slowly sweep the oscillator frequency
from 50 Hz to 5 kHz. Listen for any buzzes,
rattles or other extraneous noises from the
drivers or from the internal parts. Test sweep
time should be about 3 seconds up and 3
seconds down. Replace any driver that has
a buzzing noise.
Note: The whooshing noise from the port at
around 80Hz is acceptable.

4. Transformer TAP Select Test

4.1 Apply a 70 V rms, 100 Hz signal to the

70/100V loudspeaker input.

4.2 Slowly change the TAP selection switch
from the 100W position to the 12.5W posi­tion. A decrease in audio output level should
be heard for each descending TAP position
of the switch.

Note: There is a normal suspension noise.
To distinguish between a rub or a tick and
suspension noise, displace the cone slightly
with your finger. If the rubbing can be made
to go away or get worse, it is a rub or a tick.
If the noise stays the same, it is suspension
noise.

18

5

4

3

TRANS AUDIO 70.7/100V IN

12/25/50/100W O/P 8OHM

5

SW. ROTARY 1P6T ST-700

TO BRACKET

TRANS AUDIO 70.7/100V IN

12/25/50/100W O/P 8OHM

70.7V/100V IN

+

( WIRE-CONN 4P P3.96 #18UL1007 L=152 VW-1)

WHITE YELLOW

COM 70.7/100V

0 V

Figure 6. FreeSpace

WHT.

YEL.

BLUE

T1

8 ohm

WIRE W/110 UL1007 #20 BLUE 300mm

70.7V

100V

RED.

100W

NC

50W

100W

GRN.

25W

50W

VOL.

12W

25W

BLU.

BLK.

CROSSOVER PCB SECTION

TERMINAL OUT PUT

P1

P1'

VIN+

VIN+

WIRE-CONN 1P #18 UL1007

1

2

3

A

4

®

DS 100SE Surface Mount Speaker Wiring Diagram

6

P2

P2'

VIN-

VIN-

TERMINAL OUT PUT

INDUCTOR 3MH 2.5% DCR=

0.5 OHM 10% 38x40 MAX

L1

C1

CE 100V 18U 10% RL 16X38

20UF 100V 10% RL 16X38

C2

#18AWG TWIN RED/BK

LAMP1

RED DOT LAMP

#18AWG TWIN BL/BK 480MM

TERMINAL OUT PUT

P3

LPF+

P4

LPF-

P5

HPF-

P7

HPF-

P6

HPF+

P8

HPF+

P3'

LPF+

P4'

LPF-

P5'

HPF­P7'

HPF-

P6'

HPF+
P8'

HPF+

5.25INCH SPKR

+
_

2.25 INCH SPKR

_

_

+

2.25 INCH SPKR

UL1015 AWG#18 WHITE

70.7/100V

TERMINAL-CERAMIC BLOCK

250V 10A 600C TC-613A

CROSSOVER PCB SECTION

YELLOW

COM

70.7V/100V IN

0 V

8 ohm

WHITE

T1

THERMAL FUSE RATED 100C

INPUT TERMINAL

WIRE W/110 UL1007 #20 BLUE 300mm

BLUE

70.7V 100V

NC

100W

100W

50W

50W

25W

25W

NC

0V

WIRE-CONN 1P #18 UL1007

1

2

A

6

SW. ROTARY 1P6T ST-700

TERMINAL OUT PUT

P1

P1'

VIN+

VIN+

P2'

P2

VIN-

VIN-

TERMINAL OUT PUT

INDUCTOR 2.2MH 2.5%

L1

C1

CE 100V 15U 10% RL 16X38

CE 100V 10U 10% RL 18x38

C2

#18AWG TWIN RED/BK

LAMP1

GREEN DOT LAMP

PTC1

POLYSWITCH REXF050

#18AWG TWIN BL/BK 250MM

Figure 7. FreeSpace DS 100F Flush Mount Speaker Wiring Diagram

P3

LPF+

P4

LPF-

P5

HPF-

P6

HPF+

P3'

LPF+

P4'

LPF-

P5'

HPF-

P6'

HPF+

5.25 INCH SPKR

+

_

-

+

2.25 INCH SPKR

19

SERVICE MANUAL REVISION HISTORY

Date Revision

Description of Change Change Driven

Pages

Level

12/06 00 Document released at revision 00. Service manual
10/08 01 New DS 100SE wall-mount bracket.

Replaces original bracket.

By

initial release

New bracket 7, 9,

Affected

All

10, 11

20

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE

Bose Corporation
The Mountain
Framingham Massachusetts USA 01701

Reference Number 294955-SM Rev . 01 10/2008 (P)
http://serviceops.bose.com