Bose 131 Manual de usuario

Bose®131™ Marine

Loudspeaker System

Service Manual

Contents

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

Disassembly/Assembly Procedure ................................................................................................ 3

Figure 1. Exploded View .................................................................................................................. 3

Test Procedure ................................................................................................................................. 4

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

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

Figure 2. Parts Exploded View ......................................................................................................... 6

SPECIFICATIONS

PROPRIETARY INFORMATION

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION 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.

CAUTION: THE BOSE®131™ LOUDSPEAKER CONTAINS NO USER-SERVICEABLE

PARTS. TO PREVENT WARRANTY INFRACTIONS, REFER SERVICING TO WARRANTY

SERVICE STATIONS OR FACTORY SERVICE.

External Dimensions: Single Speaker:

Packed System:

30.5 x 16.5 x 12.7cm

12" x 6.5" x 5"

35.5 x 30.5 x 19.7cm

14" x 12" x 7.75"

Weight: Single Speaker:

Packed System:

1.8kg (4.0 LB)

4.3kg (9.5 LB)

Transducer: One 4.5" Driver per Speaker

Internal Cabinet Volume: 2.65 Liters

Impedance: 4Ωnominal (3.2Ωmin) 20Hz - 20kHz

Resonance Frequency: 90Hz

Power Handling: 40watts Continuous

(per IEC-268-5)

Sensitivity: 86dB SPL, Free-Field

(per IEC-268-5) 1w, 1m

DISASSEMBLY/ASSEMBLY PROCEDURE

Figure 1. Exploded View

1. Driver Removal

Note: Numbers in parentheses correspond

to the callouts in Figure 1.

1.1 Remove the three screws (3) that

secure the driver to the enclosure (1).

1.2 Lift the driver (2) out of the enclosure.

1.3 Cut the two wires connected to the

driver as close to the terminals as possible

and remove the driver.

2. Driver Replacement

2.1 Connect the two wires to the driver's

terminals. The red wire connects to the +

terminal and the black wire connects to the

-terminal.

2.2 Secure the driver (2) to the enclosure

(1). Be sure to align the gasket to provide

an airtight seal.

2.3 Check the driver's response using the

test procedure in this manual.

TEST PROCEDURE

1. Phase Test

1.1 Momentarily apply 13.3 ±1Vdc to the

speaker input terminals. Observe polarity

when connecting the dc power supply. The

driver should move outward.

2. Air Leak Test

2.1 Apply a 6Vrms, 10-15Hz signal to the

speaker input terminal.

2.2 Listen for air leaks around the driver

and the enclosure. There should be no

audible air leaks.

3. Rub and Tick Test

3.1 Apply a 6Vrms, 10Hz signal to the

speaker input terminals.

3.2 No extraneous noise such as rubbing,

scraping or ticking should be heard.

Note: To distinguish between normal

suspension noise and rubs or ticks, dis-

place the cone of the driver slightly with

your fingers. If the noise can be made to go

away or get worse, it's a rub or tick and the

driver should be replaced. If the noise stays

the same, it's normal suspension noise and

it will not be heard with program material.

4. Power Sweep Test

4.1 Apply a 6Vrms, 10-15Hz signal to the

speaker input terminals.

4.2 Sweep the speaker from 10Hz to

15kHz. The sweep rate shall be 3-5

seconds for increasing and decreasing

sweep.

Note: Awhooshing noise from the port at

approximately 90Hz is acceptable.

4.3 Listen for any buzzes, rattles, or other

extraneous noises. Replace any driver that

fails, and redress any wires that might

buzz.

PART LIST NOTES

1. This part might not be available from Customer Service. Approval from the Field Service

Manager is required before ordering.

2. These items are part of an assembly and might not be available separately.

3. These items are part of the Lit Kit.

4. Grille assembly contains Item Numbers 8, and 9.

PART LIST

Figure 2. Parts Exploded View

Item

Number Description Qty Part

Number Note

1 Enclosure, Ldspkr, Model 131™ 2 188195-001 1

2Driver Assy, 4.5" 2 257948-001 10/2001

2 Driver Gasket, 4.5" 1 128407 not

shown

3 Screw, Tapp, 8-11x.75, pan, xrec 3 296495-012

4 Bag, Poly, 18"x12"x2" 1 175352

5 Carton, inner, Chipboard, 131 2 189730

6 Hardware kit 1 188198

7 Wire, 18/2 Zip Cord, BK, 20FT 2 130915

8 Grill, 8" Diameter 2 188193-001 2

9 Flange, Mounting 2 188192-001 2

10 Packing, Insert, 1 190505-001

11 Carton, Grill, Chipboard 1 189731

12 Manual, Owners 1 188201 3

13 Brochure, All Products 1 188898 3

14 Card, Info, Warranty, U.S. 1 181357 3

15 Card, Info, Warranty, Muti Lang 1 181460 3

16 Sheet, Warranty Service Stations 1 187981 3

17 Bag, Poly, Lit Kit 1 103351 3

18 Carton, Model 131 1 189732-001

19Grille, Assy (Sold as pairs) 1188194 4

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