Bose-102-css-sm 电路图 维修手册.pdf

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1、2009 Bose Corporation Reference Number 130105-SM Rev. 04 Service Manual 102 COMMERCIAL SOUND SYSTEM Electronic Copy Only RadioFans.CN 收音机爱 好者资料库 Electrostatic Discharge Sensitive (ESDS) Device Handling.3 Safety Information.4 Specifications.5 Disassembly/Assembly Procedures . 6-9 102 Flush-Mount Loud

2、speaker.6 Figure 1. 102 Flush-Mount Grille Removal.6 Figure 2. 102 Flush-Mount Driver Replacement.6 102 Surface-Mount Loudspeaker.7 Figure 3. 102 Surface-Mount Driver Removal/Replacement.7 Figure 4. 102 Surface-Mount Baffle Assembly.8 102 System Controller Procedures.8-9 Figure 5. 102 System Control

3、ler Exploded View.10 Figure 6. 102 System Controller Block Diagram .11 Test Procedures . 12-15 Figure 7. Test Connections for 102F or 102S Loudspeaker.12 102 Loudspeaker Test Signals.12 102 System Controller Test Procedures . 13 102 System Controller Initial Switch Positions.13 102 System Controller

4、 Frequency Response.14 102 System Controller Test Procedures.14-15 102 System Controller Voice Channel Response.15 102 Loudspeaker Driver Wiring .16 Figure 8. 102 Loudspeaker Schematic Diagram (Passive Units).16 Figure 9. 102 Loudspeaker Schematic Diagram (Transformer Units).16 Figure 10. Tap Select

5、ion Switch Wiring (Transformer Units).16 Tap Selection Switch Wiring.16 102 Flush-Mount Loudspeaker Parts List (Per Figure 10) . 17 102 Flush-Mount Loudspeaker Installation Hardware . 17 102 Loudspeaker Exploded Views . 18 Figure 11a. 102 Flush-Mount Non-RoHS Loudspeaker Exploded View. .18 Figure 11

6、b. 102 Flush-Mount RoHS Loudspeaker Exploded View.18 102 Surface-Mount Loudspeaker Parts List (Per Figures 11 & 12) . 19 102 Surface-Mount Loudspeaker Installation Hardware . 19 Figure 12. 102 Surface-Mount Loudspeaker Exploded View.20 Figure 13. 102 Surface-Mount Loudspeaker . 21 102 System Control

7、ler Parts Lists . 22-25 102 System Controller Packing List . 25 102 Loudspeaker Packing Diagrams . 26-27 Figure 14. 102 Flush-Mount Loudspeaker Packing Diagram.26 Figure 15. 102 Surface-Mount Loudspeaker Packing Diagram.27 Service Manual Revision History.28 CONTENTS 2 RadioFans.CN 收音机爱 好者资料库 3 PROPR

8、IETARY 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 PURPOSE. C

9、AUTION: THE 102 SYSTEM CONTROLLER CONTAINS NO USER-SERVICEABLE PARTS. TO PREVENT WARRANTY INFRACTIONS, REFER SERVICING TO WARRANTY SERVICE STATIONS OR FACTORY SERVICE. ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICE HANDLING This unit contains ESDS devices. We recommend the following precautions whe

10、n 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 touching the leads or contacts of ESDS devices or PC boards even if properly grounded

11、. 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 wrap, or plastic trays. RadioFans.CN 收音机爱 好者资料库 4 SAFETY INFORMATION 1. Parts that

12、 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. 2. Make leakage current or resistance measurements to determine that exposed parts a

13、re 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 (1) With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. Do not use an isolation tran

14、sformer 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) 1492 (71). (2) With the unit AC switch first in the ON position and then in the OFF pos

15、ition, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the unit (antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. (3

16、) Any current measured must not exceed 0.5 milliamp. (4) Reverse the unit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER. B. Insulation Resistan

17、ce 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 jumpered AC plug and each exposed metallic cabinet part on the unit. When the exposed metalli

18、c part has a return path to the chassis, the reading should be between 1 and 5.2 megohms. When there is no return path to the chassis, the reading must be infinite. If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked befor

19、e it is returned to the customer. 5 SPECIFICATIONS 102 System Controller: Input Level:Music - 100mV or 1V selectable Voice - Mic or line, selectable, variable (AGC calibration) Output Level:1V nominal Input Impedance:Music - 2k ohms, balanced, differential Voice - 600 ohms, balanced, differential Ba

20、ss Cut Switch:6 dB Distortion:Less than 0.1% THD CMRR:Greater than 40 dB, all inputs AGC:Attack level - variable Attack time - 5 ms Release time - 200 ms Mute:Mute level - -30 dB ( with defeat switch on ch. B) Attack time - 5 ms Release time - 2 seconds Accessories:4 rack-mount screws, supplied Dime

21、nsions:1 3/4 H x 18 31/32 W x 4 1/4 D (44 mm x 482 mm x 107 mm) 102 Flush-Mount and 102 Surface-Mount Loudspeakers: Frequency Response:80 Hz - 18 kHz, 3 dB Distortion: 50 dB down at channel A. 3.5 Sweep the signal generator from 80 Hz to 13 kHz at 1 Volt rms. 102 SYSTEM CONTROLLER TEST PROCEDURES 3.

22、6 The output should be 50 dB down at channel A. 3.7 Return the signal to channel A. 3.8 Repeat steps 3.2 thru 3.7 for channel B. 4. Maximum Output Test 4.1 Apply an 8 Volt rms, 1 kHz signal to the channel A and B inputs. 4.2 The output should be 8 Volts rms for both channels. (0 dB 2 dB) 5. Distorti

23、on Test 5.1 Apply a 1 Volt rms, 1 kHz signal to the channel A and B inputs. 5.2 The distortion should be .1% at both the channel A and B outputs. 5.3 Reduce the input signal to .5 Volt rms and sweep the generator from 80 Hz to 12 kHz, measuring the distortion at various frequencies. 5.3 The distorti

24、on should be .1 % at both the channel A and B outputs. 6. Mute Test 6.1 Set the Voice Input Switch to the MIC position. 6.2 Apply a 1 Volt rms, 1 kHz signal to the channel A and B inputs. 6.3 Reference a dB meter to the channel A or B output. 6.4 Take another signal line from the generator, or any o

25、ther line level output signal, and quickly add and remove the signal to the positive (+) input terminal of the voice channel. Frequency (Hz) Bass Switch Response (dB) 1,000Normal0 Reference 40Normal0 4 dB 80Normal+14 +/- 2 dB 100Normal+12 +/- 2 dB 100Decrease+7.5 +/- 2 dB 200Normal+6 +/- 2 dB 4,000N

26、ormal+7.5 +/- 2 dB 13,000Normal+16 +/- 2 dB 20,000Normal+6 +/- 4dB 15 7.8 Turn the Opti-Voice level control fully counterclockwise. The output should be 20 mV rms, (0 dB 2 dB). 8. Voice Channel Response Test 8.1 Apply a 300 mV rms, 1 kHz to the voice channel input. Reference a dB meter to the channe

27、l A and B output. 8.2 Perform the tests listed in the 102 System Controller Voice Channel Re- sponse table below. 102 System Controller Voice Channel Response 9. Automatic Gain Control Test 9.1 Apply a 2 Volt rms, 1 kHz signal to the voice channel input. 9.2 The output level should be 900 mV rms, 10

28、0 mV. 10. Voice Channel Distortion Test 10.1 Apply a 1 Volt rms, 1 kHz signal to the voice channel input. 10.2 Measure the distortion at both the channel A and B outputs. It should be less than .1 %. 102 SYSTEM CONTROLLER TEST PROCEDURES 6.5 Both music channels should drop 30 dB 3 dB. Note: The mute

29、 release time is 2 seconds. It may be necessary to repeat procedure 6.4 several times to check the mute specification on both channels. 6.6 Move the mute switch on channel B to the OFF position. 6.7 Repeat step 6.4. 6.8 Channel A should drop 30 dB 3 dB. Channel B should not be affected. 6.9 Return t

30、he channel B mute switch to the ON position. 7. Voice Channel Test Note: The voice channel input must be loaded with a 600 ohm input impedance in order to get the correct output levels. 7.1 Apply a 20 mV rms, 1 kHz signal to the voice channel input. 7.2 The output should be 20mV rms, (0dB 2dB). Refe

31、rence a dB meter to the channel A or B output and proceed. 7.3 Move the voice switch to the MIC position. 7.4 The output should be 600 mV rms, (+30dB 2 dB). 7.5 Return the Voice Switch to the LINE position. 7.6 The output should be 20 mV rms, (0 dB 2 dB). 7.7 Turn the Opti-Voice level fully clockwis

32、e. The output should be 600 mV rms, (+ 30 dB 2 dB). Frequency (Hz)Response (dB) 10000 Reference 80-10 +/- 3dB 200+0.5 +/- 2dB 8000+3 +/- 2dB 20,000-5 +/- 2dB 16 102 LOUDSPEAKER DRIVER WIRING Figure 10. Tap Selection Switch Wiring (Transformer Units) Figure 9. 102 Loudspeaker Schematic Diagram (Trans

33、former Units) RED BLACKBLACK - DRIVER WHITE + L1 C1 R1 Crossover components not used in all variations. Figure 8. 102 Loudspeaker Schematic Diagram (Passive Units) 25 uf 150 WV FLUSH-MOUNT LOUDSPEAKERS ONLY - TO COMPLY WITH UL1480 WHITE BLACK TAP 1 OFF TRANSFORMER TAP 6 TAP 2RED TAP 3YELLOW TAP 4GRE

34、EN TAP 5BLUE BLACK L1 C1 R1 CROSSOVER COMPONENTS NOT USED IN ALL VARIATIONS. TERMINALCOLORFROM ARedPositive terminal of driver 5RedTransformer 4YellowTransformer 3GreenTransformer 2BlueTransformer 1n/aNot used (off position) Tap Selection Switch Wiring 102 Flush-Mount Loudspeaker Installation Hardwa

35、re Description *Part Number for Product Code 000889 and 000887 *RoHS Part Number for Product Code 040134 and 040135 Qty INSTALLATION HARDWARE KIT, QUAD SPEAKER 129036 294289-001 1 INSTALLATION HARDWARE KIT, SINGLE SPEAKER 125993 N/A 1 WB-16 WALL BRACKET KIT 125871 N/A 20 PACK 102 Flush-Mount Loudspe

36、aker Parts Lists (per figures 11a and 11b) 17 *Product code 040134 (102F 75V 25 WATT) and 040135 (102F 100V 25 WATT) are a RoHS compliant version of the 102F. Only RoHS compliant parts listed in the above chart can be used in the 102F with product code 040134 (102F 100V 25 WATT) and 040135 (102F 70V

37、 25 WATT). Both part numbers listed above can be used in the 102F product code 000887 and 000889. Notes: 1. This component is not used in all versions of the 102 F Loudspeaker. 2. Hardware quantities vary according to variation. Item Number Description *Part Number for Product Code 000889 and 000887

38、 *RoHS Part Number for Product Code 040134 and 040135 Qty Note 1 TRANSFORMER, AUDIO, 70V, 25W TRANSFORMER, AUDIO, 100V, 25W TRANSFORMER, POWER, 25V, 25W TRANSFORMER, POWER, 100V, 8W 130147 130146 130237 125827 291499-001 291498-001 N/A N/A 1 1 2 SWITCH, ROTARY, SINGLE POLE, 6 POSITION 130196 130196 1 1 3 CAP, 25uF, ELECTROLYTIC, BIPOLAR, 85C, 150V, 20% 125959 N/A 1 1