Bose-502-bbc-sm维修电路原理图.pdf
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1、2006 Bose CorporationReference Number 170310-SM Rev. 03Service ManualElectronic Copy OnlyPanaray Sound System502 Array, Bass Box and ControllerRadioFans.CN 收音机爱 好者资料库2CONTENTSContents. 2-3Safety Information.4Warranty.4Specifications. 5-7502A Array Specifications.5502B Bass Module Specifications .650
2、2C Controller Specifications . 6-7Electrostatic Discharge Sensitive (ESDS) Device Handling .8Parts Lists and Exploded Views .8Parts List Notes.9Packaging Part List, 502A Array (see Figure 1).10Figure 1. 502A Array Packaging View .10Packaging Part List, 502B Bass Box (see Figure 2) .11Figure 2. 502B
3、Bass Box Packaging Exploded View .11Packaging Part List, 502C Controller (see Figure 3) .12Figure 3. 502C Controller Packaging View.12Main Part List, 502A Array (see Figure 4) .13Figure 4. 502A Array Exploded View .14Main Part List, 502B Bass Box (see Figures 5 and 6) .15Figure 5. 502B Bass Box Expl
4、oded View .16Figure 6. 502B Access Panel and Connector Views .17Main Part List, 502C Controller (chassis with removable front panel) (see Figure 7) .18Figure 7. 502C Controller Exploded View (removable front panel version).19Main Part List, 502C Controller (one-piece chassis) (see Figure 8).20Figure
5、 8. 502C Controller Exploded View (one-piece chassis version).20Electrical Part Lists. 21-30502C Controller Main PCB Assembly. 21-30Disassembly Procedures .31502A Array Procedures. 31-34Figure 9. 502A Array Exploded View .32Figure 10. 502A Array Wiring Diagram.33502B Bass Module Procedures . 34-3550
6、2C Controller Disassembly Procedures . 35-36Figure 11. 502B Bass Module Exploded View .37Figure 12. 502B Bass Module Connector and Access Panel .38Figure 13. 502B Bass Module Wiring Diagrams .39Figure 14. 502C Controller Exploded View (removable front panel version).40Figure 15. 502C Controller Expl
7、oded View (one-piece chassis version).40Test Procedures .41502A Array Test Procedures.41Figure 16. XLR input pin assignment .41502B Bass Module Test Procedures . 41-42502C Controller Test Procedures . 42-44Figure 17. Unbalanced Connections .45Figure 18. 502C Controller Back Panel (Barrier Strip Vers
8、ion Shown).45Accessory Kit Part Lists . 46-51502A PSA-5 Stand Adapter Parts List (see Figure 19) .46Figure 19. PSA-5 Stand Adapter Kit .46502A CSB-5A Suspension Bracket Kit Parts List (see Figure 20) .47Figure 20. CSB-5A Suspension Bracket Kit .47RadioFans.CN 收音机爱 好者资料库3CONTENTS502B CSB-5B Suspensio
9、n Bracket Kit Parts List (see Figure 21).48Figure 21. CSB-5B Suspension Bracket Kit .48502A WBP-5 Bi-Pivot Bracket Kit Parts List (see Figure 22).49Figure 22. WBP-5 Bi-Pivot Bracket Kit .49502A WCB-5 U-Bracket Kit Parts List (see Figure 23) .50Figure 23. WCB-5 U-Bracket Kit .50502A CVT-5 Transformer
10、 Assembly Kit Parts List (Figure 24) .51Figure 24. CVT-5 Exploded View and Packaging.51Figure 25. CVT-5 Schematic .52Theory of Operation. 53-55502C Controller .531. Differential Input Stage.532. Equalizer for High Frequency Outputs .533. Output mode switch, Low frequency level control, and Normal/Su
11、m mode stage.534. Equalizer for Low Frequency Outputs .535. Mode switch .536. Output stage .547. Power Supply .548. Turn On/Off Muting Circuit.549. Troubleshooting Tips. 54-55502C Controller EQ Curves . 56-61Figure 26. Low Frequency EQ.56Figure 27. Low Frequency EQ.56Figure 28. Low Frequency EQ.57Fi
12、gure 29. Low Frequency EQ.57Figure 30. High Frequency EQ.58Figure 31. High Frequency EQ.58Figure 32. High Frequency EQ.59Figure 33. High Frequency EQ.59Figure 34. High Frequency EQ.60Figure 35. High Frequency EQ.60Figure 36. High Frequency EQ.61Figure 37. 502C Controller Block Diagram.62Service Manu
13、al Revision History.634SAFETY INFORMATION1. Parts that have special safety characteristics are identified by the symbol on schematicsor by special notes on the parts list. Use only replacement parts that have critical characteristicsrecommended by the manufacturer.2. Make leakage current or resistan
14、ce measurements to determine that exposed parts areacceptably 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, plug the AC line corddirectly into a 1
15、20V AC outlet. (Do not use an isolation transformer during this test.) Use aleakage current tester or a metering system that complies with American National StandardsInstitute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL)UL6500 / UL60065 / IEC 60065 paragraph 9.1.1.
16、 With the unit AC switch first in the ON positionand then in OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.)to all exposed metal parts of the unit (antennas, handle bracket, metal cabinet, screwheads,metallic overlays, control shafts, etc.), especially any exposed me
17、tal parts that offer an electricalreturn path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse theunit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THELIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BEELIMINATED BEFORE RETUR
18、NING THE UNIT TO THE CUSTOMER.B. Insulation Resistance Test Cold Check - (1) Unplug the power supply and connect ajumper 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 exposedmetallic
19、 cabinet part on the unit. When testing 3 wire products, the resistance measured to theproduct enclosure should be between 2 and infinite MOhms. Also, the resistance measured toexposed input/output connectors should be between 4 and infinite MOhms. When testing 2 wireproducts, the resistance measure
20、d to exposed input/output connectors should be between 4and infinite MOhms. If it is not within the limits specified, there is the possibility of a shockhazard, and the unit must be repaired and rechecked before it is returned to the customer.CAUTION: The Bose Panaray 502 Sound System containsno use
21、r-serviceable parts. To prevent warranty infractions,refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATIONTHIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OFBOSE CORPORATION WHICH IS BEING FURNISHED ONLY FORTHE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCTBY AN AU
22、THORIZED BOSE SERVICE CENTER OR OWNER OFTHE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED ORUSED FOR ANY OTHER PURPOSE.The Bose Panaray 502C Controller is covered by a limited 1-year warranty. The Panaray 502Aarray speaker and Panaray 502B bass module are covered by a 5-year limited warranty.WARRANTY5SP
23、ECIFICATIONS502A Array SpecificationsDimensions:23.5H x 5.75W x 6.73D(59.7x14.6x17.1 cm)Weight:15 lbs. (6.8 kg.)Transducer Complement:5 - 4.5 (11.4 cm) driversEnclosure Material:High-impact polystyreneNominal Impedance:8 Ohms, 6.4 Ohms minimumSensitivity:90 dB SPL (1W, 1m, 130 Hz-15 kHz)Maximum Acou
24、stic Output:112 dB SPL average, 121 dB SPL peakFrequency Range:130 Hz - 15 kHzPort Tuning Frequency:135 HzAmplifier Power (Recommended):150 - 600 watts continuous into 8 Ohms Long-term power handling:150 watts continuousBeamwidth:120 horizontal, 70 verticalInput Connections:Parallel wired barrier st
25、rip (US/Can.)Parallel wired XLR (Euro/Aus/UK/Japan)Fusing:4 ampere AGC (Buss) or 3AG (Littlefuse)6SPECIFICATIONS502B Bass Module SpecificationsDimensions:31.0H x 14.0W x 15.5D(78.7x 35.6x 39.4 cm)Weight:80 lbs. (36.4 kg.)Transducer Complement:1 - 12 woofer (high power)Enclosure Material:3/4 resin-co
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