Bose-301-Serie-V-Service-Manual 电路图 维修手册.pdf

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1、1 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 BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PUR

2、POSE. CAUTION: The Bose Model 301 Series V loudspeaker contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. WARRANTY The Bose Model 301 Series V loudspeaker is covered by a five-year limited warranty. Contents Warranty.

3、1 Specifications.2 Technical Description .2 Disassembly/Assembly Procedures . 3-4 Figure 1. Woofer Wiring Configuration.3 Figure 2. Test Equipment Set Up.4 Test Procedures .5 Main Part List.6 Figure 3. Exploded View .6 Crossover Part list .7 Figure 4. Crossover Diagram.7 Packaging Part List.8 Figure

4、 5. Packaging Exploded View.8 RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONS PRODUCT DESCRIPTION Dimensions:Single Speaker:9.375 H x 14.625 W x 9.375 D (25 x 36 x 25 cm) Weight:Packed pair:28.7 lb (16.5 kg) Single speaker:12.5 lb (5.7 kg) Transducer complement:One 8 woofer Two 2 tweeters Internal cabinet

5、volume:961 cu in (15.8 liters) Port:Description:Dual flared ports molded as part of the rear panel ports tuned to 48 Hz Low frequency cutoff:-3 dB at 55 Hz or lower Impedance:6 Ohms 4.8 Ohms minimum, 50 Hz to 15 kHz per IEC-268-5 Power handling:75 W (21.2 Vrms) continuous per IEC 268-5 for a duratio

6、n of 100 hours. Recommended amp/receiver power 10 to 150 Watts per channel Sensitivity:1Vrms, 1 meter:= 79 dB SPL, 400 Hz octave The Bose 301 Series V is a replacement for the 301 Series IV speaker, and is a passive, two-piece (mirror imaged stereo pair) home loudspeaker in a bookshelf configuration

7、. The 301 Series V is designed for use with standard amplifiers, receivers, and other related home audio components. The 301 Series V utilizes separate inward and outward firing tweeters to achieve consistent stereo imaging over a broad listening area (Stereo Everywhere performance) while maintain-

8、ing a spacious sound stage. Aesthetically, the 301 Series V echoes styling cues successfully used in the 601 Series IV and the 701 Series II, and has a family resemblance to the 201 Series V. The 301 Series V features a molded plastic front panel, integrated with a vinyl-covered particle board enclo

9、sure. Additionally, the system incorporates slot-port technology which reduces port noise and pro- duces cleaner, more natural bass. The sum of all these unique features makes the 301 Series V speaker capable of reproducing the wide dynamic range demanded by todays advanced recordings without strain

10、 or loss of clarity. RadioFans.CN 收音机爱 好者资料库 3 DISASSEMBLY/ASSEMBLY PROCEDURES Note: Refer to figure 3 for the following procedures. 1. Grille Removal 1.1 Grasp the top and bottom edges of the grille (12) and pull off the grille. 2. Grille Replacement 2.1 Align the grille (12) so that the Bose logo

11、(11) is right side up on the tweeter side of the cabinet and push it into place. 3. Woofer Removal 3.1 Perform procedure 1. 3.2 Remove the four screws (13) that secure the woofer (14) to the cabinet. 3.3 Lift the woofer out and cut the wires as close to the terminals as possible. 4. Woofer Replaceme

12、nt 4.1 Strip the wires and connect the wires as shown in figure 1. The red wire to the single center terminal. The black wire to the right side double terminal (looking at the woofer magnet side down). The orange and green wires to the left double terminal. The capacitor is connected to the far left

13、 and right terminals. 4.2 Secure the woofer (14) to the cabinet using four screws (13). 4.3 Perform procedure 2. 5. Front Tweeter Removal 5.1 Perform procedures 1, 3.2 and lift the wooter out of the cabinet, but do not cut the wires. 5.2 Using a 1/4 inch socket, remove the screw (6) and bracket (7)

14、that secures the tweeter (8) to the cabinet. 5.3 Lift the tweeter out of the cabinet and cut the wires as close to the terminals as possible. 6. Front Tweeter Replacement 6.1 Strip the wires and connect the red wire to the positive (+) terminal and the black wire to the negative (-) terminal. Dress

15、or twist the wires to prevent buzzes. 6.2 Place the tweeter (8) into the cabinet and secure it using the tweeter bracket (7) and screw (6). 6.3 Perform procedures 4.2 and 2. 7. Rear Tweeter Removal 7.1 Perform procedures 1, 3.2 and lift the woofer out of the cabinet, but do not cut the wires. 7.2 Us

16、ing a 1/4 inch wrench, remove the screw (1) and bracket (2) that secures the tweeter (3) to the cabinet. 7.3 Lift the tweeter out of the cabinet and cut the wires as close to the terminals as possible. Figure 1. Woofer Wiring Configuration orange green red black RadioFans.CN 收音机爱 好者资料库 4 DISASSEMBLY

17、/ASSEMBLY PROCEDURES 9. Terminal Block Connector Removal 9.1 Perform procedures 1, 3.2 and lift the woofer out of the cabinet, but do not cut the wires. 8. Rear Tweeter Replacement 8.1 Strip the wires and connect the red wire to the positive (+) terminal and the black wire to the negative (-) termin

18、al. Dress or twist the wires to prevent buzzes. 8.2 Place the tweeter (3) into the cabinet and secure it using the tweeter bracket (2) and screw (1). 8.3 Perform procedures 4.2 and 2. 9.2 Unclip the terminal block connector (4) from the inside of the cabinet and push it out through the rear panel. C

19、ut the wires as close to the terminals as possible. 10.1 Terminal Block Connector Replacement 10.1 Strip the wires and connect the red wire to the positive (+) terminal and the black wire to the negative (-) terminal. Dress or twist the wires to prevent buzzes. 10.2 Secure the terminal block connect

20、or (4) to the cabinet. 10.3 Perform procedure 4.2 and 2. Audio Signal Generator + _ Power Amplifier InputOutput + _ + _ + Speaker _ Figure 2. Test Equipment Set Up 5 TEST PROCEDURES Note: Remove the grille for the following tests. General Test Set Up Connect the output of a signal generator to the i

21、nput of a power amplifier. Connect the output of the power amplifier to the input terminals of the speaker under test. Refer to figure 2, (on page 4) test equipment set up. 1. Woofer Rub and Tick Test 1.1 Apply a 7 Vrms, 10 Hz signal to the input terminals of the speaker under test. No extraneous no

22、ises such as rubbing, scraping or ticking should be heard. Note: To distinguish between normal sus- pension noise and rubs or ticks, displace the cone on the woofer slightly with your fingers. If the noise can be made to go away or get worse, it is a rub or a tick and the woofer should be replaced.

23、If the noise stays the same, it is a normal suspension noise and the woofer is fine. Suspension noises will not be heard with program material. 2. Air Leak Test 2.1 Apply a 7 Vrms, 35 Hz signal to the input terminals of the speaker under test. 2.2 Listen for air leaks around the woofer, tweeters and

24、 cabinet seams. Any air leaks will be heard as a sputtering or hissing sound. 2.3 Replace or reposition any gasket where an air leak can be heard. 3. Sweep Test 3.1 Apply a 7 Vrms, 10 Hz signal to the input terminals of the speaker under test. 3.2 Sweep the input generator from 10 Hz to 5 kHz. There

25、 should be no extraneous sounds. 3.3 Reduce the input voltage to 3 Vrms, and continue sweeping from 5 kHz to 15 kHz. 3.4 Redress any wires or components that buzz or rattle. Replace any woofer or tweeter that is found to be defective. 4. Phase Test Note: The supply voltage should only be momentarily

26、 applied to the speaker input terminals to avoid possible damage to the speaker. 4.1 Set a DC power supply to 9 volts. Connect the positive wire from the power supply to the positive (+) connector of the input terminal and the negative wire to the negative (-) connector of the input terminal. The wo

27、ofer should move outward with the application of the supply voltage. 6 MAIN PART LIST Figure 3. Exploded View Item Number Description Part Number Qty. Note 1 SCREW, MACH, SEMS, 8-32, HEX 256070-08 1 2 CLIP, TWTR RETAIN, REAR 264973-03 1 3 TWEETER, 2, REAR TWEETER, 2, REAR, SHLD 290845-01 290836-01 1

28、 4 CONN, BARRIER GLTN, 2 POS 181865 1 5 BATTING, POLYESTER 116082 or 260336 1 6 SCREW, MACH, SEMS, 8-32, HEX 256070-08 1 7 CLIP, TWTR RETAIN, FRONT 264973-01 1 8 TWEETER, 2, FRONT, (WITH SLIVER TRIM SKIRT) TWEETER, 2, FRONT, (WITH BLACK TRIM SKIRT) 290847-01 290813-01 1 9 GASKET, WOOFER, 8 266118 1

29、10 GROMMET, GRILLE SOCKET 176068 4 11 NAMEPLATE, LOGO 266108 1 12 GRILLE ASSY, BLACK 266105-01 1 13 SCREW, TAPP, 8-11 x .75, PAN, XRC/SQ 172672-12 4 14 WOOFER ASSY, 8, (WITH TRIM RING) 289908-001 1 Note 4: When replacing the tweeters, replace with like tweeter. If the front tweeter has a silver trim

30、 use 290845-01 for the rear and 290847-01 for the front If the front tweeter has a black trim, use 290836-01 for the rear and 290813-01 for the front 7 CROSSOVER PART LIST Reference DesignatorDescriptionPart NumberNote C14.0uF, EL, BP, 85C, 50V, 10%116542 C215uF, EL, BP, 85C, 50V, 10% (ON WOOFER) 12

31、6798 RT1LAMP, MINI, 1.5A, 36VDC141989 Figure 4. Crossover Diagram 8 PACKAGING PART LIST Item Number DescriptionPart Number Qty.Note 1MANUAL, OWNERS2649811 2INFO CARD, WARRANTY, MULTI LANG1814601 3CARD, REGISTRATION AND WARRANTY2629331 4BUMPER, FOOT, ADH BACKED, 8-CT173012-081 5ADDRESS PAGE2594341 6S

32、HEET SLIP ALL PRODUCTS2558081 7COMMITMENT LETTER2510011 8BAG, POLY, 14.38 x 9.87 x 2 mil1033511 9BAG, POLY, HDPE 13.5 x 35 x 9.5 x 1MIL1145221 10PACKING, EPS2661234 11CARTON, RSC266122-011 Figure 5. Packaging Exploded View 2002 Bose Corporation Part Number 267215 Rev. 00 Service Manual Bose Model 301 Series V Loudspeaker SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham Massachusetts USA 01701 P/N: 267215 Rev. 00 10/2002 (H) FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-223-4408