Bose-151-SE-Service-Manual 电路图 维修手册.pdf

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1、Model 151SE Environmental Speaker 2008 Bose CorporationService Manual Reference Number 273701-SM Rev. 01 RadioFans.CN 收音机爱 好者资料库 2 PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSE

2、 PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. WARRANTY INFORMATION The Bose 151SE Environmental Speaker is covered by a five year transferable warranty. PRODUCT DESCRIPTION The Bose 151SE Environmental Speaker o

3、ffers an advanced design with quality construction. Each loudspeaker contains three 1.4 ohm environmentally resistant Twiddler speakers in a horizontal arc-shaped 2.2 liter ported enclosure. A protection and equalization circuit is located on the pcb attached to the rear half of the speaker. The spe

4、aker has an aluminum grille with a logo which rotates in 90 degree increments. The 151SE is available in black and white. CONTENTS Warranty Information.2 Product Description.2 Proprietary Information .2 Specifications.3 Packaging Part List.4 Figure 1. Packaging Exploded View .4 Main Part List .5 Fig

5、ure 2. Part Exploded View.5 Crossover Part List .6 Figure 3. Crossover PCB Schematic .6 Disassembly Procedures . 7-10 Wiring Diagram .9 Test Procedures .10 Service Manual Revision History.11 RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS Transducers:Three 2.5” environmental Twiddler speakers per enclosure

6、 Impedance:6 Ohms nominal (4.8 Ohms minimum) 20-20kHz Power Handling:50 W (17.3Vrms) continuous per IEC-268-5 Recommended amp/receiver power 10-100W per channel System Protection:PTC in parallel with a capacitor Sensitivity:89.5dB SPL at 2.83V, 1meter, 2kHz-octave band Flux Leakage:N/A, not shielded

7、; not for use near a video monitor External Dimensions:12.3” x 4.5” x 6.2” (31.2cm x 11.4cm x 15.8cm) Weight:Single Speaker:4.6lb. (2.1 kg) Packed Pair:11.7 lb. (5.3 kg) PART LIST NOTES 1. This part is not normally available from Customer Service. Approval from the Field Service Manager is required

8、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 ha

9、zards. 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. RadioFans.CN 收音机爱 好者资料库 4 PACKAGING PART LIST Figure 1. Packaging Exploded View 1 2 3 456 7 8 9 2x 2x 2x Item Number Description Part Numbe

10、r Qty. 1 CARTON, RSC, 17.00X14.19X7.25, C 294090 1 2 PACKING, EPS, TOP/BOTTOM, 151 II 273823-01 2 3 BRACKET, SINGLE, KIT, BLK, UV 315948-0042 BRACKET, SINGLE, KIT, WHT, UV 315948-005 4 GUIDE, OWNERS, 151 II 273809 1 5 CARD, REGIST. AND WARRANTY 262933 1 6 BAG, POLY, 14.38x9.87x2 mil 103351 1 7 COMMI

11、TMENT LETTER 251001 1 8 HARDWARE KIT, 151 SE 292523-002 1 9 BAG, POLY, 16X18 253804 2 4 5 MAIN PART LIST Figure 2. Part Exploded View 1 23 4 5 6 7 8 9 8 9 10 11 12 13 8x 2x 2x 3x 14 Item Number Description Part Number Qty. Note 1 LOGO, BLACK 273812-01 1 LOGO, WHITE 273812-02 2 TAPE, FOAM, .06 THK 27

12、7053-001 2 4 3 GRILLE, ALUM, BLACK 273810-01 1 GRILLE, ALUM, WHITE 273810-02 4 FOAM, LOGO 275803-001 1 5 RING, RETAINER, LOGO 275804-001 1 6 ENCLOSURE, BAFFLE, BLACK 274260-001 1 4 ENCLOSURE, BAFFLE, WHITE 274260-002 7 TWIDDLER, 60MM, ENVIR., 1.4 OHM 273543-002 3 8 CONNECTOR, ENVIR, BLK 250815-01 1

13、9 CONNECTOR, ENVIR, RED 250815-02 1 10 ENCLOSURE, BACK, BLACK 274261-001 1 4 ENCLOSURE, BACK, WHITE 274261-002 11 SCREW, TAPP, 8-11X.75, PAN, ASY, SQ 296495-012 8 12 SCREW, TAPP, 6-13X.500, PAN, AS, SQ 296443-008 2 13 CROSSOVER PCB ASSY, ROHS 289945-001 1 14 INSERT, NUT, DECORATIVE CAP 123991 2 6 CR

14、OSSOVER PART LIST Figure 3. Crossover PCB Schematic J1 129000-5234 1 J2 129000-5234 1 3PT2PT1PT TP4 TP5 C1 10uF L1 1.5mH TP6 PTC1 PTC2 C3 100uF C2 470uF R1 5.1 R2 2.0 Reference Designator Description Part Number Note R1 RES, WW, 5W, 10%, 2.7 OHM 132105-2R7 4 R2 JUMPER, 22AWG, INSUL, 1.25” 108435-1R2

15、5 4 C1 47uF, EL, BP, 63V, 20% 283940-470A 4 C2 470uF, EL, BP, 85C, 20% 268841-471H 4 C3 100uF, EL, BP, 85C, 20% 268841-Z101H 4 L1 INDUCTOR ASSY, 200uH, ROHS 291571-001 4 J1 PIN, GROOVED, .52x.34x.045 291521-5234 J2 PIN, GROOVED, .52x.34x.045 291521-5234 PTC1 POLYSWITCH, 60V, RXE065 275782 PTC2 JUMPE

16、R, 22AWG, INSUL - 4 - PC BOARD, MODEL 191 267563-002 4 - TAPE, FOIL 140551 4 - RIVET, ANCHOR, PLASTIC, 2-PIECE 250072-001 4 7 DISASSEMBLY PROCEDURES 1. Grille Removal 1.1 Remove the grille by pulling on the ends with your fingers, or pry carefully with a non- metallic object. Note: The grille is mad

17、e entirely of metal. Do not try to remove the grille by pulling on the plastic (polypropylene) speaker enclosure. 2. Enclosure Dissassembly 2.1 To disassemble the enclosure, place the unit on a flat soft surface grille side down. Remove the 8 screws identified below. Note: The unit is press-fit toge

18、ther. All parts of the unit must be in place prior to replacing the 8 screws. 2.2 With the unit face down, gently pull up on the rear enclosure. Be careful not to lift the unit too high, as the Twiddler speakers are wired to the rear enclosure. Lay the rear enclosure on its side to expose the inside

19、 of the unit and the Twiddler speakers as seen below. 8 DISASSEMBLY PROCEDURES Note: There are no screws in the Twiddler speakers, they are held in place by the press fit between the rear enclosure and the baffle. 3. Crossover PCB Removal 3.1 Perform Procedure 1. 3.2 Remove the 2 screws identified b

20、elow that secure the crossover assembly to the cabinet. 3.3 Make a note of the wiring configuration. Lift out the crossover PCB and cut the wires as close to the terminals as possible. 9 DISASSEMBLY PROCEDURES 4. Twiddler Removal 4.1 Perform procedure 1. 4.2 Make a note of the wiring configuration.

21、Lift the Twiddler speakers out and cut the wires as close to the wire terminals as possible. 5. Twiddler Replacement 5.1 Set the center Twiddler speaker in place first, then the two outer Twiddler speakers. Take care to lower the outer Twiddler speakers straight down when setting them in place, this

22、 will ensure that the gasket seats in the correct location. 5.2 Wire the Twiddler speakers as shown below. Wiring Diagram Terminal 1 (+) Terminal 2 (-) 10 6. Enclosure Re-assembly 6.1 Re-install the Crossover PCB. Connect the PCB as shown in the wiring diagram and the schematic diagram. 6.2 With the

23、 baffle face down, lower the enclosure over the baffle. Dress the foamed wires toward the center of the loudspeaker enclosure. Note: Ensure there are no wires visible through the speaker port once assembled. 6.3 Reinsert the 8 screws that secure the enclosure to the baffle assembly. 6.4 Perform the

24、test procedures in this manual to ensure that there are no air leaks or wire buzzes before returning the speaker to the customer. 7. Grille Replacement 7.1 Align the grille to the speaker enclosure and push in lightly. TEST PROCEDURES 1. Air Leak Test 1.1 Apply an 8Vrms,105Hz signal to the speaker i

25、nput terminals. 1.2 Listen to the front of the speaker carefully for air leaks from around the cabinet seams, and Twiddler speakers. Turn the speaker over and listen for air leaks from the enclosure securing screws and drivers. 2. Sweep Test 2.1 Apply a 6Vrms Vrms, 10Hz signal to the speaker input t

26、erminals. 2.2 Sweep the signal generator from 10Hz to 3kHz and then back to 10Hz. 2.3 Listen carefully for buzzes, ticks, rattles or other noises. Replace the Twiddler speakers if they are found to be defective. Note: To distinguish between normal suspension noise and rubs or ticks, slightly displac

27、e the cone of the twiddler with your fingers. If the noise can be made to go away or get worse, it is a rub or tick and the twiddler should be replaced. If the noise stays the same, it is normal suspen- sion noise and the twiddler is okay. Suspension noise will not be heard with program material. DI

28、SASSEMBLY PROCEDURES 11 SERVICE MANUAL REVISION HISTORY Date Revision Level Description of Change Change Driven By Pages Affected 1/04 00 Document released at revision 00. Service manual release All 7/08 01 Various part number changes. Service manual format updated. Part changes Various Specifications and Features Subject to Change Without Notice Bose Corporation The Mountain Framingham, Massachusetts USA 01701 Reference Number 273701 REV. 01 7/2008