Bose-601-Service-Manual 电路图 维修手册.pdf

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1、601 II DIRECT/REFLECTING SPEAKER SYSTEM Service Manual P/N 118915 RadioFans.CN 收音机爱 好者资料库 1 Contents TECHNICAL DESCRIPTION. 2 Specifications. 3 Figure 1. 601 II Ports . 3 601 II Test Procedures . 4 Disassembly/Assembly Procedures . 5 601 II Part List. 6 Figure 2. Front View. 6 Figure 3. Top View. 6

2、Figure 4. Part 1 (Left) Three Terminal Schematic . 7 Figure 5. Part 2 (Right) Three Terminal Schematic. 7 Figure 6. Two Terminal Schematic . 8 RadioFans.CN 收音机爱 好者资料库 2 TECHNICAL DESCRIPTION SPATIAL CHARACTERISTICS The Bose 601 Series II system is a high performance floor-standing speaker designed t

3、o achieve the highest level of spatial realism and spectral accuracy in a non-equalized Direct/ Reflecting speaker system. The new 601 Series II speaker incorporates two new concepts in speaker technology: The Free Space array, which allows the drivers to radiate freely in any direction, providing e

4、xceptionally realistic and natural-sounding energy distributing in almost any listening room. The second new concept is the Sub-port Enclosure System, figure 1. Each woofer has its own enclosure that has damping material and a sub-port. The sub-ports are tuned to operate in the frequency range of 20

5、0-300Hz, providing principal sound radiation in these frequencies through the sub-port rather than the cone. The sub-ports are coupled to the main port of the speaker, and with the new extended range woofers, tweeters and crossover network, the 601 II speaker takes maximum advantage of this new tech

6、nology. SPEAKER CONFIGURATION WOOFER: Two new high-efficiency 8 woofers designed for the sub-port enclosure. Each woofer has a long excursion voice coil and suspension, plus a 14 Oz. magnet, providing high output capability. Uniform response of the woofer is over 2.5KHz with use of the Dual Frequenc

7、y crossover network. One woofer is directed forward while the second woofer is directed upward, which helps create a balance of reflected and direct energy in the listening room. TWEETER: Four 3 wide-range high sensitivity tweeters per enclosure provide flat power radiation beyond 15KHz. The respons

8、e extends down to 1.5KHz for use with the Dual Fre- quency crossover network. Two tweeters in each speaker enclosure are directed outward so that most of the sound energy is reflected off the back and side walls. One tweeter is posi- tioned so that the sound energy is directed towards the center of

9、the room and the final tweeter is positioned to reflect sound off the back wall between the speakers and into the room, providing a strong center stereo image by filling the hole in the middle. DUAL FREQUENCY CROSSOVER NETWORK: Located in the top woofer cup, the crossover network consists of two cap

10、acitors, two resistors, and two tweeter protection lamps. The Dual Frequency crossover network is designed to offer performance advantages by deliberately operating both the woofers and tweeters simultaneously over a significant part of the frequency range. We have designed the crossover network to

11、have separate transition frequencies for the woofers and tweeters. By using separate frequencies, an overlap in response of almost one octave is achieved, providing smoother frequency response in the crossover region. Careful design of all components in the crossover network matches woofer and tweet

12、er re- sponse, eliminating phase cancellation and assuring accurate frequency and transient re- sponse. Enclosure: A sub-port enclosure system for maximum efficiency, minimum cone motion and placement versatility. Cabinet is constructed of walnut grain vinyl laminated to particle board. Note: The ea

13、rly version of the 601 II speaker has three input terminals. Later versions had two input terminals. Refer to the schematics and crossover part lists in this manual for differ- ences. RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS Speaker ComplimentTwo 8 Woofers per cabinet Four 3 Tweeters per cabinet Nom

14、inal Impedance8 Power Requirements20 watts minimum 150 watts maximum Major Port Frequency35HZ Subport FrequencyBroad band tuning centered at 240HZ Dual Frequency CrossoverWoofer transition frequency: 2.5kHZ Tweeter transition frequency: 1.5kHZ Shipping Weight46 LB per speaker Speaker Weight36 LB per

15、 speaker Speaker Dimensions29.5 H X 14 W X 13 D Figure 1. 601 II Ports Sub-ports Main Ports 4 601 II TEST PROCEDURES 1. Sweep Test 1.1 Apply a 10Vrms, 15HZ signal to the input terminals of the speaker. 1.2 Sweep the oscillator from 15HZ to 2.5kHZ. There should not be any loud extraneous noises comin

16、g from the woofer. Note: The woofers are wired in series. If one woofer is open the other one will not work. 1.3 Sweep the oscillator from 1.5kHZ to 15kHZ. Replace any tweeter that is inop- erative or buzzing. 2. Rub and Tick Test 2.1 Apply a 10Vrms, 25HZ signal to the input terminals of the speaker

17、. 2.2 No extraneous noises 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 is a rub or tick and the driver

18、should be replaced. If the noise stays the same, it is normal suspension noise and it will not be heard with program mate- rial. 3. Air Leak Test 3.1 Apply a 10Vrms, 40HZ signal to the input terminals of the speaker. 3.2 Listen for any whooshing sound com- ing from the cabinet or around the woofer.

19、Repair any air leaks. 4. Phase Test 4.1 Momentarily apply 10VDC to the input terminal of the speaker. Observe the polarity when connecting the DC supply. 4.2 The woofer should move outwards with the momentarily applied DC voltage. 4.3 Visually check the tweeters wiring to ensure proper phasing. 5 DI

20、SASSEMBLY/ASSEMBLY PROCEDURES 1. Grille Removal 1.1 Reach behind the top part of the grille and gently lift up on the grille. 1.2 Once the grille has been pulled off of the four top clips, gently pull the grille away from the front of the speaker, removing it from the two clips on the lower part of

21、the cabinet. 2. Grille Replacement 2.1 Place the top of the grille on the top of the cabinet so that the four clips on the grille are aligned with the four grommets on the cabinet. Press the clips into the grom- mets so that they snap into place. 2.2 Place the lower part of the grille onto the front

22、 of the cabinet so that the clips on the grille align with the grommets on the cabinet. Press the clips into the grommets so that they snap into place. 3. Woofer Removal 3.1 Perform procedure 1. 3.2 Remove the four screws that secure the woofer and the dress ring to the cabi- net. Lift the woofer ou

23、t from the cabinet. Note: Reuse the dress ring. 3.3 Cut the wires as close to the woofer terminals as possible. Note: Make a note of the wiring configura- tion. 4. Woofer Replacement 4.1 Strip the wires and connect them to the woofer. Use the schematic diagrams on page 7and 8 to ensure proper wiring

24、. 4.2 Replace the four screws that secure the woofer and the dress ring to the cabi- net. Note: The replacement woofer will come with a dress ring that is not glued to the woofer. Remove the dress ring from the replacement woofer and discard it. 5. Tweeter Removal 5.1 Perform procedure 1. 5.2 Perfor

25、m Procedure 3. It is necessary to remove the woofer to gain access to the tweeters service loop. Removing the woofer will also prevent accidental damage to the woofer. 5.3 Remove the screw that secures the tweeter to the tweeter bracket. 5.4 Cut the wires as close to the tweeter as possible. Note: M

26、ake a note of the wiring configura- tion. 6. Tweeter Replacement 6.1 Strip the wires and connect them to the replacement tweeter. Use the schematic on page 7 and 8 to ensure proper wiring. 6.2 Replace the screw that secures the tweeter to the tweeter bracket. Pull the excess wires back into the cabi

27、net and twist them so that they do not cause a buzz. 7. Crossover Access 7.1 Perform procedure 1. 7.2 Remove the top woofer. 7.3 The crossover is located under and in front of the top woofer. 6 601 II PART LIST CROSSOVER COMPONENTS Two TerminalThree Terminals DescriptionPart Number Capacitor, 3.4uF,

28、 5%106825 Capacitor, 4.0uF, 5%108980 Capacitor, 3.0uF, 5%104130 Resistor, 3.9, 15W119094-3R9 Resistor, 3.0, 15W119094-3R0 Resistor, 5.1, 15W119094-5R1 DescriptionPart Number Tweeter protection Lamp114462 Capacitor, 6.8uF, 5%115136 Capacitor, 8.0uF, 5%115137 Capacitor, 6.0uF, 5%109430 Resistor, 1, 15

29、W, 5%102778-1R0 Figure 2. Front ViewFigure 3. Top View Item Number DescriptionPart Number Item Number DescriptionPart Number 1Grille, Side Plastic11692711Screw, F Tweeter119095-22 1AScrew, Hex Head118065-1212Screw, R Tweeter119094-14 2Grille Assembly115143-113Port Trim Ring117529-1 3Nameplate1100091

30、4Top Woofer Cup122101 4Screw, #8 x 30mm 129027-1615Gasket, Woofer Cup 117717 5Tinnerman Clip11771816Screw #8-32 x .872114986-15 6Gasket, Woofer12071517Rubber Foot112992 7Woofer Trim Ring11753018Screw, foot123284-20 8 Woofer 8 Inch 181870-001 19 Gasket, Woofer, Top 118930 9Rubber Insert, Grille117995

31、-Grille Fastener117788 10Tweeter, 3 Inch130714 3 2 11A 4 9 1718 678 478 16 14 15 1A 13 1011 12 20 519 7 C1 RT1 R1 R2 RT2 C2 A+ A- B+ YL GY GY GY GY GY RD RD GN BK FRONT? WOOFER TOP? WOOFER LEFT? REAR? TWEETER LEFT? FRONT? TWEETER RIGHT? FRONT? TWEETER RIGHT? REAR? TWEETER C D + + + + + + C2 RT2 R2 R

32、1 RT1 C1 A+ A- B+ YL GY GY GY GY RD RD GN BK FRONT? WOOFER TOP? WOOFER LEFT? REAR? TWEETER LEFT? FRONT? TWEETER RIGHT? FRONT? TWEETER RIGHT? REAR? TWEETER C D + + + + + + GY Figure 4. Part 1 (Left) Three terminal Schematic Figure 5. Part 2 (Right) Three Terminal Schematic 8 C1 R1 TOP? WOOFER FRONT?

33、WOOFER LEFT REAR? TWEETER LEFT FRONT? TWEETER RIGHT FRONT? TWEETER RIGHT REAR? TWEETER + + + + + + RD GY YL GN BK GY RD GY BK _ + Figure 6. Two Terminal Schematic 9 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham, Massachusetts USA 01701 P/N 118915 3/96: Rev 3 FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-367-4008