Bose-502-A-Service-Manual-rev.3 电路图 维修手册.pdf

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1、2006 Bose Corporation Reference Number 170310-SM Rev. 03 Service Manual Electronic Copy Only Panaray Sound System 502 Array, Bass Box and Controller RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Contents. 2-3 Safety Information.4 Warranty.4 Specifications. 5-7 502A Array Specifications.5 502B Bass Module Speci

2、fications .6 502C Controller Specifications . 6-7 Electrostatic Discharge Sensitive (ESDS) Device Handling .8 Parts Lists and Exploded Views .8 Parts List Notes.9 Packaging Part List, 502A Array (see Figure 1).10 Figure 1. 502A Array Packaging View .10 Packaging Part List, 502B Bass Box (see Figure

3、2) .11 Figure 2. 502B Bass Box Packaging Exploded View .11 Packaging Part List, 502C Controller (see Figure 3) .12 Figure 3. 502C Controller Packaging View.12 Main Part List, 502A Array (see Figure 4) .13 Figure 4. 502A Array Exploded View .14 Main Part List, 502B Bass Box (see Figures 5 and 6) .15

4、Figure 5. 502B Bass Box Exploded View .16 Figure 6. 502B Access Panel and Connector Views .17 Main Part List, 502C Controller (chassis with removable front panel) (see Figure 7) .18 Figure 7. 502C Controller Exploded View (removable front panel version).19 Main Part List, 502C Controller (one-piece

5、chassis) (see Figure 8).20 Figure 8. 502C Controller Exploded View (one-piece chassis version).20 Electrical Part Lists. 21-30 502C Controller Main PCB Assembly. 21-30 Disassembly Procedures .31 502A Array Procedures. 31-34 Figure 9. 502A Array Exploded View .32 Figure 10. 502A Array Wiring Diagram.

6、33 502B Bass Module Procedures . 34-35 502C Controller Disassembly Procedures . 35-36 Figure 11. 502B Bass Module Exploded View .37 Figure 12. 502B Bass Module Connector and Access Panel .38 Figure 13. 502B Bass Module Wiring Diagrams .39 Figure 14. 502C Controller Exploded View (removable front pan

7、el version).40 Figure 15. 502C Controller Exploded View (one-piece chassis version).40 Test Procedures .41 502A Array Test Procedures.41 Figure 16. XLR input pin assignment .41 502B Bass Module Test Procedures . 41-42 502C Controller Test Procedures . 42-44 Figure 17. Unbalanced Connections .45 Figu

8、re 18. 502C Controller Back Panel (Barrier Strip Version Shown).45 Accessory Kit Part Lists . 46-51 502A PSA-5 Stand Adapter Parts List (see Figure 19) .46 Figure 19. PSA-5 Stand Adapter Kit .46 502A CSB-5A Suspension Bracket Kit Parts List (see Figure 20) .47 Figure 20. CSB-5A Suspension Bracket Ki

9、t .47 RadioFans.CN 收音机爱 好者资料库 3 CONTENTS 502B CSB-5B Suspension Bracket Kit Parts List (see Figure 21).48 Figure 21. CSB-5B Suspension Bracket Kit .48 502A WBP-5 Bi-Pivot Bracket Kit Parts List (see Figure 22).49 Figure 22. WBP-5 Bi-Pivot Bracket Kit .49 502A WCB-5 U-Bracket Kit Parts List (see Figu

10、re 23) .50 Figure 23. WCB-5 U-Bracket Kit .50 502A CVT-5 Transformer Assembly Kit Parts List (Figure 24) .51 Figure 24. CVT-5 Exploded View and Packaging.51 Figure 25. CVT-5 Schematic .52 Theory of Operation. 53-55 502C Controller .53 1. Differential Input Stage.53 2. Equalizer for High Frequency Ou

11、tputs .53 3. Output mode switch, Low frequency level control, and Normal/Sum mode stage.53 4. Equalizer for Low Frequency Outputs .53 5. Mode switch .53 6. Output stage .54 7. Power Supply .54 8. Turn On/Off Muting Circuit.54 9. Troubleshooting Tips. 54-55 502C Controller EQ Curves . 56-61 Figure 26

12、. Low Frequency EQ.56 Figure 27. Low Frequency EQ.56 Figure 28. Low Frequency EQ.57 Figure 29. Low Frequency EQ.57 Figure 30. High Frequency EQ.58 Figure 31. High Frequency EQ.58 Figure 32. High Frequency EQ.59 Figure 33. High Frequency EQ.59 Figure 34. High Frequency EQ.60 Figure 35. High Frequency

13、 EQ.60 Figure 36. High Frequency EQ.61 Figure 37. 502C Controller Block Diagram.62 Service Manual Revision History.63 RadioFans.CN 收音机爱 好者资料库 4 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 o

14、nly replacement parts that have critical characteristics recommended by the manufacturer. 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

15、 these measurements: A. Leakage Current Hot Check - With the unit completely reassembled, plug 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 Ins

16、titute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) UL6500 / UL60065 / IEC 60065 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 exposed metal part

17、s 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. Any current measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet and

18、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 Resistance Test Cold Check - (1) Unplug the power supply and connect a jumper wire between the two prongs of the plu

19、g. (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 testing 3 wire products, the resistance measured to the product enclosure should be between 2 and infinite MOhms. Also, the r

20、esistance measured to exposed input/output connectors should be between 4 and infinite MOhms. When testing 2 wire products, 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

21、 hazard, and the unit must be repaired and rechecked before it is returned to the customer. CAUTION: The Bose Panaray 502 Sound System contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATION THIS DO

22、CUMENT 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. The Bose Panaray 502C Contr

23、oller is covered by a limited 1-year warranty. The Panaray 502A array speaker and Panaray 502B bass module are covered by a 5-year limited warranty. WARRANTY 5 SPECIFICATIONS 502A Array Specifications Dimensions:23.5H x 5.75W x 6.73D (59.7x14.6x17.1 cm) Weight:15 lbs. (6.8 kg.) Transducer Complement

24、:5 - 4.5 (11.4 cm) drivers Enclosure Material:High-impact polystyrene Nominal Impedance:8 Ohms, 6.4 Ohms minimum Sensitivity:90 dB SPL (1W, 1m, 130 Hz-15 kHz) Maximum Acoustic Output:112 dB SPL average, 121 dB SPL peak Frequency Range:130 Hz - 15 kHz Port Tuning Frequency:135 Hz Amplifier Power (Rec

25、ommended):150 - 600 watts continuous into 8 Ohms Long-term power handling:150 watts continuous Beamwidth:120 horizontal, 70 vertical Input Connections:Parallel wired barrier strip (US/Can.) Parallel wired XLR (Euro/Aus/UK/Japan) Fusing:4 ampere AGC (Buss) or 3AG (Littlefuse) 6 SPECIFICATIONS 502B Bass Module Specifications Dimensions:31.0H x 14.0W x 15.5D (78.7x 35.6x 39.4 cm) Weight:80 lbs. (36.4 kg.) Transducer Co