Bose-L1-cpla-sm 电路图 维修手册.pdf

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1、2009 Bose Corporation Reference Number 318882-SM Rev. 01 Service Manual L1 Compact Portable Line Array System Electronic Copy Only RadioFans.CN 收音机爱 好者资料库 2 Contents Safety Information.3 Warranty .3 Specifications.4 Electrostatic Discharge Sensitive (ESDS) Device Handling.5 Part List Notes .5 L1 Com

2、pact Accessory Pack .5 Product Description . 6-8 Packaging Part List, L1 Compact Power Stand (includes Array) (see Figure 1) .9 Figure 1. L1 Compact Power Stand Packaging View.9 Packaging Part List, L1 Compact Array Extensions (see Figure 2) .10 Figure 2. L1 Compact Array Extensions Packaging View .

3、10 Main Part List, L1 Compact Power Stand (see Figure 3).11-12 Figure 3. L1 Compact Power Stand Exploded View.12 Main Part List, L1 Compact Array Speaker (see Figure 4).13 Figure 4. L1 Compact Array Speaker Exploded View .13 Main Part List, L1 Compact Array Extension Exploded View (see Figure 5) .14

4、 Figure 5. L1 Compact Array Extension Exploded View .14 Electrical Part List . 15-37 Input/Output PCB Assembly . 15-29 3.5mm Line Input PCB Assembly .29 Output PCB Assembly . 29-30 Power Amplifier PCB Assembly . 31-37 Disassembly Procedures . 38-44 Test Procedures . 45-48 IC Diagrams . 49-50 Service

5、 Manual Revision History .51 RadioFans.CN 收音机爱 好者资料库 3 Safety Information 1. Parts that have special safety characteristics are identified by the symbol on schematics or by special notes on the parts list. Use only replacement parts that have critical characteristics recommended by the manufacturer.

6、 2. Make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit before returning the unit to the customer. Use the following checks to perform these measurements: A. Leakage Current Hot Check-With the unit completely reassembled, p

7、lug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 6500

8、 / IEC 60056 paragraph 9.1.1. With the unit AC switch first in the ON position and then in OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all ex- posed metal parts of the unit (antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts

9、, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZAR

10、D THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER. B. Insulation Resistance Test Cold Check-(1) Unplug the power supply and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure the resistance with an ohmmeter between the ju

11、mpered AC plug and each exposed metallic cabinet part on the unit. When testing 3 wire products, the resistance measured to the product enclosure should be between 2 and infinite MOhms. Also, the resistance measured to exposed input/output connectors should be between 4 and infinite MOhms. When test

12、ing 2 wire prod- ucts, the resistance measured to exposed input/output connectors should be between 4 and infinite MOhms. If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked before it is returned to the customer. CAUTION:

13、The Bose L1 Compact system contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF

14、 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 PURPOSE. The Bose L1 Compact Power Stand is covered by a limited 2-year transferable warranty. The L1 Compact Array and the Power Stand woofer a

15、re covered by a 5-year limited warranty. Warranty RadioFans.CN 收音机爱 好者资料库 4 Specifications Mechanical PartDimensionsWeight L1 Compact Power Stand with16.5” H x 13.25” W x 16.75” D24.6 lbs (11.2 kg) Loudpseaker Array(41.8 cm x 33.9 cm x 42.6 cm) L1 Compact Loudpseaker Array 16” H x 2.75” W x 2.75” D3

16、.0 lbs (1.35 kg) (40.8 cm x 7 cm x 7.1 cm) L1 Compact Extensions (2)32.5” H x 2.75” W x 2.75” D2.3 lbs (1.05 kg) each Collapsed Position16.5” H x 13.25” W x 16.75” D24.6 lbs (11.2 kg) (assembled)(41.8 cm x 33.9 cm x 42.6 cm) Extended Position78.5” H x 13.25” W x 16.75” D29.2 lbs (13.3 kg) (assembled

17、)(199.5 cm x 33.9 cm x 42.6 cm) Shipping CartonsWeight L1 Compact System (no extensions)30.4 lbs (13.8 kg) L1 Compact Extensions7.5 lbs (3.4 kg) Electrical AC Power Rating 100 - 240 VAC 50/60 Hz, 200W max Peak Inrush Current 230V: 18.2 Amps 120V: 9.7 Amps 5 Part List Notes 1. This part is not normal

18、ly available from Customer Service. Approval from the Field Service Manager is required 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 char

19、acteristics as the recommended replacement part might create shock, fire and/or other hazards. 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. Electrostatic Discharge Sensitive (ESDS) Device Han

20、dling This unit contains ESDS devices. We recommend the following precautions when repairing, replacing or transporting ESDS devices: Perform work at an electrically grounded work station. Wear wrist straps that connect to the station or heel straps that connect to conductive floor mats. Avoid touch

21、ing the leads or contacts of ESDS devices or PC boards even if properly grounded. Handle boards by the edges only. Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wr

22、ap or plastic trays. L1 Compact Accessory Pack Description Bose Part Number Vendor Part Number L1 Microphone Accessory Pack, Includes all items below 322711-0000 - Audix OM3 Cardioid Dynamic Vocal Microphone 318884-0000 OM3 20 XLR Microphone Cable 318885-0000 CBL-20 Carton, L1 Microphone Accessory P

23、ack, RSC, 10.50 x8.50 x5.75 318886-0000 N/A Cable, Audio, Dual, RCA 185931-01 N/A Cable, Input, 3.5mm, 6ft, Black 271994-001 N/A L1 Compact System Versions Description Bose Part Number L1 Compact Power Stand, 120V (US) 318882-1100 L1 Compact Power Stand, 220V (China) 318882-2100 L1 Compact Power Sta

24、nd, 100V (Japan) 318882-3100 L1 Compact Power Stand, 230V (Euro) 318882-4100 L1 Compact Power Stand, 240V (UK) 318882-5100 6 Product Description Whether you are a musician amplifying your instruments, a mobile DJ entertaining an audience, or the host of your own special event, the Bose L1 Compact Po

25、rtable Line Array System will provide quality sound for audiences of approximately 100 people. Features Include Carry it in one trip The entire system is light enough to be carried in a single trip. Set it up in one minute The interlocking components of the L1 Compact system allow system setup in le

26、ss than a minute. There are no external speaker wires required. An integrated bass enclosure with an intuitive user interface eliminates the need for separate components. Fill the room with one loudspeaker Whether youre performing live or playing back prere- corded music, whether youre performing in

27、 a coffeehouse or a 100-seat room, Bose Spatial Dispersion loudspeaker technology provides nearly 180 of tonally balanced sound coverage so there are no dead spots. PA and monitor combined Audience members enjoy a more consistent and intimate listening experience because the system sets up behind th

28、e performer and serves as both the monitor for the stage and amplification system for the audience. The performer alone controls the sound. Versatility In addition to musical performances, the L1 Compact provides quality sound for a wide variety of general-purpose uses including presentations, celeb

29、rations, speeches, and music playback for about 100 people. Integrated ToneMatch signal processing Provides a high level of tone customization on your microphone or acoustic guitar to provide a listening experience that most musicians only achieve using a recording studio. Two setup options The L1 C

30、ompact system can be used in either the collapsed position for smaller audiences or extended positions for larger audiences. The L1 Compact Portable Line Array System is shipped in two cartons. The L1 Compact system consists of: L1 Compact Power Stand L1 Compact Loudspeaker Array L1 Compact Extensio

31、ns The L1 Compact system comes with a slipcover for the Power Stand and a padded carry bag for the L1 Com- pact Extensions. Power stand cartonExtensions carton L1Compact Power Stand with Loudspeaker Array AC power cord Power Stand slipcover L1Compact Extensions Extensions carry bag Loudspeaker Array

32、 7 Product Description System configurations You can set up the L1 Compact system in two unique positions. The examples below will help you quickly identify the position that can work best for you. The L1 Compact Extensions are not re- quired when using the L1 Compact Portable Line Array System in t

33、he collapsed position. They are included for situations where you need to elevate the Loudspeaker Array to project sound to larger audiences. Extending the Loudspeaker Array Once you have set the system in place: 1.Slide the Loudspeaker Array up and out of the Power Stand and tempo- rarily lay it as

34、ide. Note: The two L1 Compact Exten- sions are identical to each other. 2.Align the plug on the bottom of the Extension with the socket on the Power Stand, then slide the extension into the power stand. 3.Align the remaining Extension and push it firmly in place. 4.Align the Loudspeaker Array and pu

35、sh it firmly in place. Connecting power to the system 1.Make sure the power switch is off (down position). 2.Plug one end of the power cord into the connector on the power stand. 3.Plug the other end into a live electri- cal receptacle. 4.Before turning the system on, connect your sound sources. Sma

36、ller audiences Intimate acoustic performances Music playback Presentations Speeches Larger audiences Musical performances auditorium/coffeehouse DJ events Announcements larger spaces Collapsed position Loudspeaker Power Extended position Power Stand Array Extension Extension Stand Tabletop Array Lou

37、dspeaker 1 2 3 4 1 2 3 8 Product Description Connections and controls The power stand control panel provides all the necessary connectors, controls, and indicators for operation. Channel 1 (Microphone input) The channel 1 input is for use only with a microphone. Integrated ToneMatch signal processin

38、g provides a high level of tone customization to provide a listening experience that most musicians can only achieve using a recording studio. 1. Signal/Clip indicator Displays the input signal status in color. Green: Input signal present Red: Input signal clipping 2. Volume control Adjusts the volu

39、me of your microphone. 3. Treble control Adjusts the amount of treble on your microphone. 4. Bass control Adjusts the amount bass on your microphone. 5. Microphone input Analog input for connecting a balanced XLR microphone cable. A ToneMatch microphone preset is built in. Channel 2 (Utility channel

40、 multiple input) 6. Signal/Clip indicator Displays the input signal status in color. Green: Input signal present Red: Input signal clipping 7.Volume control Adjusts the overall volume of all input sources connected to Channel 2. 8. 1/8-inch stereo input Stereo analog input for connecting audio sourc

41、es such as portable mp3 players, satellite radio, laptop computers, video projectors, and smart boards. Left and right inputs are summed by the power stand. 9. RCA stereo input Analog input for connecting audio sources such as DVD players, VCR players, video game consoles, DJ mixers, Keyboards and other instruments. For best results, connect both the left and right signals. Left and right inputs are summed by the power stand. 10. 1/4-inch input Balanced analog input for connecting guitars and other instruments. Accepts either 1/4-inch TRS balanced or TS unbalanced cables. 1