Bose Companion 3 Series II Bedienungsanleitung

Service Manual

FreeSpace®3 Series II

Loudspeaker System

FS3B Acoustimass®Bass Module FS3F Satellite Speaker

CONTENTS

CAUTION: The Bose®FreeSpace Series II Loudspeaker System

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

refer servicing to warranty service stations or factory service.

WARRANTY INFORMATION

The Bose FreeSpace 3 Series IIAcoustimass Module Loudspeaker and Free Space Model 3F

Satellite Loudspeakers are covered by a 5-year transferable limited warranty.

PROPRIETARYINFORMATION

THISDOCUMENTCONTAINSPROPRIETARYINFORMATION OF

BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR

THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT

BYAN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF

THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR

USED FOR ANY OTHER PURPOSE.

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

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

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

Disassembly Procedures .................................................................................................................3

FreeSpace® 3B Acoustimass® Bass Module Procedures...........................................................3

FreeSpace 3F Satellite Procedures ...............................................................................................3

Test Setup Procedures................................................................................................................ 4-5

Figure 1. 6 Ohm Mono Test Setup Setting ........................................................................................4

Figure 2. Stereo Test Setup Setting ..................................................................................................4

Figure 3. Factory Default Setting ......................................................................................................5

Figure 4. 70/100 Volt Test Setup Setting ...........................................................................................5

Test Procedures ...............................................................................................................................6

Main Part List, FreeSpace 3 Series II Acoustimass® Module Loudspeaker ..............................7

Figure 5. FreeSpace Series IIAcoustimass Loudspeaker Exploded View........................................7

Electrical Part List, FreeSpace 3B Crossover PCB......................................................................8

Main Part List, FreeSpace 3F Satellite Speaker............................................................................9

Figure 6. FreeSpace 3F Satellite Speaker Exploded View ................................................................9

Packing List, FreeSpace 3 Series II Acoustimass® Module Loudspeaker ...............................10

Figure 7. FreeSpace Series II Acoustimass Loudspeaker Packaging View ....................................10

Packing List, FreeSpace 3 Omni Loudspeaker Bracket.............................................................11

Figure 8. FreeSpace 3 Omni Speaker Bracket Packaging View .....................................................11

Packing List, FreeSpace 3F Satellite Speaker ............................................................................12

Figure 9. FreeSpace 3F Satellite Speaker Packaging View ............................................................12

Figure 10. FreeSpace 3B Crossover PCB Schematic Diagram.....................................................13

Service Manual Revision History .................................................................................................14

SPECIFICATIONS

System Components: Satellite: (1) 2 1/4" TwiddlerTM in each FS3F satellite

Bass Module: (1) 5 1/4" Woofer in each bass module

External Dimensions: Satellite: 6.2 in. x 4.4 in. (157mm dia x 112mm depth)

Bass Module: 15.04 in. x 7.87 in. (382mm dia x 200 mm

depth)

Weight: SingleSatellite: 1.65 lbs. (0.75 kg)

Bass Module: 15.4 lbs. (7 kg)

Packed System: 17.6 lbs. (8 kg)

Electrical Crossover: Frequency: 200 Hz @ 6 dB/octave

Impedance: 4 Ohms nominal 130 Ohms @ 70V, 32W, from 70 Hz - 15 kHz

250 Ohms @100V, 32W, from 70 Hz - 15 kHz

Power Handling: 100 Watts continuous per IEC-268-5, 96 hours.

Recommended amplifier / Max 100 Watts.

Filter: 24 dB/oct Butterworth,

Hi-pass 50 Hz

Lo-pass 250 Hz

Sensitivity: Satellites: >73 dB SPL, free field, per IEC-268-5

(1 W, 1m Free Space) (for octave-band centered at 400 Hz)

Bass Module: >74 dB SPL, free field, per IEC-268-5

(for octave-band centered at 100 Hz)

Flux Leakage: 2.0 Gauss max. @ 30mm from any surface of

(satellites) thesatellite

System Protection: Polyswitch

PRODUCT DESCRIPTION

The Bose®FreeSpace®3 Series II Acoustimass®Module Loudspeaker and the Bose FreeSpace

3F satellite speakers are passive flush-mount ceiling speakers. Typical application is in retail,

restaurant, hospitality and other commercial applications. The Bose Free Space 3F satellite

speaker is a flush-mount variant of the current surface-mount Free Space 3 satellite.

DISASSEMBLY PROCEDURES

FreeSpace®3B Acoustimass®Bass Module

Procedures

Note: Refer to figure 5 for the following

procedures:

1. Grille and Logo Removal

1.1 Use force to pull out the logo (18), then

gently pull the grille (17) away from the baffle

(1). Be careful not to mark the surface of the

grille or the enclosure.

2. WooferAssembly Removal

2.1 Use a cross-head screwdriver to remove

the 10 screws (10) that secure the rear

cover (3) to the enclosure (2). Gently turn

over the rear cover (3) to allow access to the

woofer assembly (5).

2.2 Remove 4 screws (9) of the woofer

assembly and 3 screws of the transformer

access cover (6). Lift out the transformer

access cover with the transformer (7)

attached to allow access to the crossover

PCB (19).

2.3 Make a note of the wiring configuration

and unplug the four wires of the woofer

assembly from the crossover PCB.

2.4 Lift the woofer assembly out of the

enclosure.

3. Transformer Kit Removal

3.1 Perform step 2.1.

3.2 Remove the 3 screws of the transformer

access cover (6) and lift out the transformer

kit (6, 7, 8) from the mounting hole.

3.3 Make a note of the wiring configuration

and unplug all the wires from the trans-

former.

Re-assembly Note: Make sure the gap for

the transformer wires through the enclosure

is airtight.

FreeSpace®3F Satellite Procedures

Note: Refer to figure 6 for the following

procedures.

1. Grille Assembly Removal

1.1 Gently pull the grille assembly (4) away

from the enclosure (8). Be careful not to

mark the surface of the grille or the enclo-

sure.

2. TwiddlerTM Assembly Removal

2.1 Perform procedure 1.

2.2 Using a cross-head screwdriver, remove

the four screws (1) that secure the baffle

plate (9) to the enclosure (8).

2.3 Unplug the two wires from the driver (2).

Re-assembly Note: Be sure to observe

polarity when reconnecting the wires. Red

for "+" and black for "-".

TEST SETUP PROCEDURES

Mono Direct: To bypass the transformer and prepare the loudspeaker for 6 Ohm use and mono

sound input, remove the two jumpers from the transformer settings on the front of the loud-

speakers. Leave the CH1 and CH2 jumpers on the back of the loudspeaker as they are.

Figure 1. 6 Ohm Mono Test Setup Setting

Stereo Direct: To bypass the transformer and prepare the loudspeaker for 6 Ohm use and

stereo sound input, remove all the jumpers.

Figure 2. Stereo Test Setup Setting

TEST SETUP PROCEDURES

Note: Using the factory default settings, connect an amplifier output to either the 70 Volt or 100

Volt input connections as illustrated above.

Figure 3. Factory Default Setting

Figure 4. 70/100 Volt Test Setup Setting

TEST PROCEDURES

Note: The input voltage should be the actual

voltage present at the input and not the open

circuit generator output.

1. Bass Module Air Leak Test

Note: Connect the system as shown in

figure 1, 6 Ohm mono test setup settings.

1.1 Apply a 6 Vrms, 50 Hz signal to the mono

input terminals of the bass module. Do not

connect the satellite speakers.

1.2 Listen carefully for air leaks from around

the terminal cup, port cap and cabinet

seams.

2. Woofer Phase Test

2.1Apply a 6 Vrms, 50 Hz signal to both the

CH1 and CH2 stereo input terminals of the

bass module.

2.2 While the signal is being applied to the

bass module, remove the input to one of the

stereo terminals.

2.3 The sound output level should drop by

approximately half. If the sound output level

increases, stays the same, or stops com-

pletely, then there is a wiring problem at the

crossover PCB or woofer.

3. System Sweep Test

3.1 Connect the system as shown in figure

2, stereo test setup settings.

3.2 Apply a 6 Vrms, 10 Hz signal to the

stereo input terminals of the bass module.

3.3 While listening to the output of the sys-

tem, sweep the input frequency slowly from

10 Hz to 500 Hz. The output should cross

over from the bass module to the satellite

speakers.

Note: A whooshing noise from the bass

module port at around 40 Hz and 160 Hz to

180 Hz is acceptable.

3.4 Reduce the input level to 3 Vrms.

3.5 Continue sweeping from 500 Hz to 15

kHz. Listen for a clean, undistorted output

from each satellite assembly. Replace any

satellite or woofer that buzzes or sounds

distorted.

4. 70/100 Volt Input Test Procedure

Note: This test is to ensure the transformer

is functioning. Connect the system as shown

in figure 4, 70/100V test setup settings.

4.1 Apply a 13 Vrms, 50 Hz signal to the bass

module at the 70 Volt input terminals.

4.2 Sweep the input frequency from 50 Hz to

500 Hz.

4.3Apply a 13 Vrms, 50 Hz signal to the 100

Volt input terminals.

4.4 Sweep the input frequency from 50 Hz to

500 Hz.

Note: If the crossover or any components

on the crossover PCB are found to be

defective, replace the entire crossover PCB.

MAIN PART LIST

FreeSpace®3 Series II Acoustimass®Module Loudspeaker

Figure 5. FreeSpace Series II Acoustimass Loudspeaker Exploded View

Item

Number

Description Part Number Qty.

Note

1 Baffle, FS3B Series II, Black

Baffle, FS3B Series II, White - 1

2 Enclosure, FS3B Series II, Black

Enclosure, FS3B Series II, White - 1

3 Rear Cover 303862 1

4 Junction Box Cover 303863 1

5 Woofer Assembly 303864 1

6 Transformer Access Cover 303865 1

7 Transformer, 70/100V, 100W 303866 1

8 Gasket for Transformer Cover - 1

9 Screw, M4x12 - 6

10 Screw, M4x18 - 12

11 Screw, M5x62 - 4

12 Terminal, 8 position 303867 3

13 Screw, M6x12 2

14 Anchor, Black

Anchor, White 303869

303870 4

15 Port Flare, Black

Port Flare, White - 1

16 Cover, Front, Black

Cover, Front, White 303871

303872 1

17 Grille, FS3B Series II, Black

Grille, FS3B Series II, White 303873

303874 1

18 Nameplate, Logo, Black

Nameplate, Logo, White 303875

303876 1

19 Crossover Assembly 303877 1

ELECTRICAL PART LIST

FreeSpace®3B Crossover PCB

Resistors

Capacitors

Inductors

Miscellaneous

Reference

Designator

Description Part Number Note

R11 5.1 Ohm, WW, 5W, 10% 303897 4

R21 5.1 Ohm, WW, 5W, 10% 303897 4

Reference

Designator

Description Part Number Note

C10 100uF, EL, BP, 85C, 50V, 20% 303898 4

C11 10uF, EL, BP, 85C, 50V, 20% 303899 4

C20 100uF, EL, BP, 85C, 50V, 20% 303898 4

C21 10uF, EL, BP, 85C, 50V, 20% 303899 4

Reference

Designator

Description Part Number Note

L11 Inductor, 300uH 303900 4

L21 Inductor, 300uH 303900 4

Reference

Designator

Description Part Number Note

PTC11 Polyswitch, 60V, RXE110 303901 4

PTC21 Polyswitch, 60V, RXE110 303901 4

MAIN PART LIST

FreeSpace®3F Satellite Speaker

Figure 6. FreeSpace 3F Satellite Speaker Exploded View

Item

Number

Description Part Number Qty.

Note

1 Screw, M4x12mm 303879 6

2 Twiddler®Assembly 303880 1

3 Screw, M3x75mm 303881 3

4 Grille Kit, Black (consists of):

Grille, FS3F, Black

Nameplate, Logo, Black

Clip, Retaining, Logo

Grille Kit, White (consists of):

Grille, FS3F, White

Nameplate, Logo, White

Clip, Retaining, Logo

303882

303884

5 Cover, Junction Box 303885 1

6 Anchor, Black

Anchor, White 303887

303888 3

7 Terminal, 2 position 303889 2

8 Enclosure, FS3F, Black

Enclosure, FS3F, White -

- 1

9 Plate, Baffle, FS3F - 1

10 Shield, Paint 303890 1

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