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

26、re, vinyl wrappedPort:High-impact polystyreneNominal Impedance:8 Ohms, 6.4 Ohms minimumSensitivity:90 dB SPL (1W, 1m, 55 Hz-150 Hz)Maximum Acoustic Output:115 dB SPL average, 122 dB SPL peakFrequency Range:50 Hz - 150 HzPower Handling:450 watts continuousAmplifier Power (Recommended):450 - 1200 watt

27、s continuous into 8 OhmsInput Connections:2 parallel wired barrier strip (US/Can)2 parallel wired XLR (Euro/Aus/UK/Japan)2 parallel wired Speakon connectorsFusing:7 ampere AGC (Buss) or 3AG (Littlefuse)502C Controller SpecificationsDimensions:120V/Barrier Strip1.75Hx19.0Wx8.75D (4.4x48.3x22.2cm)220-

28、240V/XLR1.75Hx19.0Wx8.0D (4.4x48.3x20.3cm)Weight:5.5 lbs. (2.5 kg.)Chassis material:16 gauge steel with painted/zinc coated finishCover plate material:Brushed aluminum,painted Input Connections:Balanced barrier strip (US/Can)Balanced XLR (Euro/Aus/UK/Japan)Output Connections:Balanced barrier strip (

29、US/Can)Balanced High frequency & Low frequencyXLR (Euro/Aus/UK/Japan)7SPECIFICATIONS502C Controller Specifications (continued)Input Impedance:Balanced input, -10 dB level - 14k OhmsBalanced input, +4 dB level - 6k OhmsUnbalanced input (+ input), -10 dB level: 12k OhmsUnbalanced input (+ input), +4 d

30、B level: 4k OhmsOutput Impedance:100 Ohms nominalInput Level: -10 dB or +4dB, selectableOutput Level:8.0 Vrms maximum into 600 OhmsLow Frequency (LF) Output Mode:Sum or normalLF Output Level:-18 dB to +3 dB, variableCrossover Frequency:140 Hz (Bi-amp), Roll-off slope: -18dB/octaveTHD:Midrange distor

31、tion of HF output: - 0.1% at 5V, 600 HzLow frequency distortion of LF out: - 0.1 % at 5V, 80 HzOutput Noise:Bi-amp mode, HF outputs - 90VBi-amp mode, LF outputs - 40VPassive mode, - 90VOffset:All channels - 15mVPower Requirements:120 VAC,50/60 Hz, 12 watts (US/Can)230 VAC,50/60 Hz, 12 watts (Euro)10

32、0 VAC,50/60 Hz, 12 watts (Japan)240 VAC,50/60 Hz, 12 watts (Aus/UK)8ELECTROSTATIC DISCHARGE SENSITIVE (ESDS)DEVICE HANDLINGThis unit contains ESDS devices. We recommend the following precautions when repairing,replacing or transporting ESDS devices: Perform work at an electrically grounded work stat

33、ion. 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. Handle boards by the edges only. Transport or store ESDS devices in ESD protective bags, bins, or tote

34、s. Do not insert unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or plastic trays.PARTS LISTS AND EXPLODED VIEWSThe following section contains parts lists and exploded views for the Panaray sound system.The parts lists are broken down as follows:

35、- 502A Array Parts List and Exploded View- 502A Packaging Parts List and Exploded View- 502B Bass Box Parts List and Exploded View- 502B Packaging Parts List and Exploded View- 502C Controller Main Assembly Parts List and Exploded View- 502C Packaging Parts List and Exploded View- 502C Electrical Pa

36、rts List- Accessory Kits Parts Lists and Exploded ViewsNOTE: The notes section for the entire parts list is contained on page 8.CAUTION: Use only accessory kit parts that are specified by Bose Corporation in this servicemanual. Substitute parts may not have the same safety characteristicsas the orig

37、inal parts.9PARTS LIST NOTES1. This part is not normally available from Customer Service. Approval from the Field ServiceManager is required before ordering.2. This part splits into 2 pieces. Each piece fits onto a corner of the bass box.3. Current European units should contain 2 owners manuals: the

38、 original version, P/N 143585,and the German version of the owners manual, P/N 171941. Future production units (except inNorth America) will contain owners manuals in 5 languages (German, French, Italian, Spanishand English).4. This illustration is typical of the internal layout of the 502 except as

39、 follows: (1) Barrier stripconnectors are used in the US/Canada version only. XLR connectors are used on all non-USversions, and (2) The nut connected to the line cord is used on the US/Canada, UK and Austra-lian units only.5. This part is critical for safety purposes. Failure to use a substitute re

40、placement with thesame safety characteristics as the recommended replacement part might create shock, fire and/or other hazards.6. Refer to the 502C Electrical Parts List for components located on the PCB assembly.7. This part is not illustrated.8. These screws hold regulators U13 and U14 to the hea

41、tsink.9. Early production runs of the 502C have 4 screws (instead of 2) that secure the cover to thechassis.10. Early production runs of the 502C with XLR connectors have 12 screws (instead of 6) thatsecure the connectors to the chassis.11. Early production runs of the 502C have 6 screws (instead of

42、 4) that secure the front plate tothe cover and chassis.12. Early production runs of the 502C with XLR connectors have 5 screws (instead of 2) thatsecure the PCB to the chassis.13. The line cord assembly consists of the following items:(1) Line Cord-P/N 147428 (US/Canada), P/N 147430 (Euro), P/N 147

43、429 (Japan), P/N 149025(UK), P/N 149026 (Aus.),(2) Strain Relief Bushing - P/N 144010 (US/Canada/UK/Aus), P/N 144011 (Euro/Japan),(3) Connector Housing - P/N143964, and(4) Connector Pin - P/N 143992. These parts are all safety controlled components. See Note 5.10Figure 1. 502A Array Packaging View50

44、2A Array (see Figure 1)PACKAGING PART LISTItem Number Description XLR and Barrier Version Product code 003840, 004931, 004932 and 004933 *Speakon Version Product code 040170 and 040171 Qty Note 1 Literature Kit-Panaray which consists of: 149271 - 1 A B C D E Polybag Owners Manual Registration Card W

45、arranty Service List Envelope 103351 143585 122157 122766 122785 103351 292721 - - - 1 2 Packing, Foam 143573 172321 2 3 Polybag 106595 - 1 4 Carton, 502A 143572 172541 1 *Product code 040170 (gray) and 040171 (white) are the RoHS compliant version of the 502A. Only RoHS compliant parts listed in th

46、e above chart can be used in the 502A with product code 040170 and 040171.?11Figure 2. 502B Bass Box Packaging Exploded View502B Bass Box (see Figure 2)PACKAGING PART LISTItem Number Description XLR and Barrier Version PC 003841, 019769, 004934, 004935, 004936, 007698 *Speakon Version PC 040090 and

47、040091 Qty Note 1 Literature Kit-Panaray Which consists of: 149271 - 1 A B C D E Polybag Owners Manual Registration Card Warranty Service List Envelope 103351 143585 122157 122766 122785 103351 292040 - - - 1 1 1 1 1 2 Packing End Cap, EPS (XLR and Barrier versions) Packing End Cap, EP (Speakon vers

48、ion) 139955 - - 258886 4 2 3 Polybag 119320 119320 1 4 Carton, 502B 143558 258887 1 *Product code 040090 (black) and 040091 (white) are a RoHS compliant version of the 502B. Only RoHS compliant parts listed in the above chart can be used in the 502B with product code 040090 and 040091. ?12Figure 3.

49、502C Controller Packaging View502C Controller (see Figure 3)PACKAGING PART LISTItem Number Description Part Number Qty. Note 1 Crease Sheet, Die Cut 149823 1 2 Literature Kit, Panaray, Consists of: 149271 1 A Poly bag 103351 1 B Owners Manual 143585 1 Owners Manual (German language) 171941 1 3 C Car

50、d, Registration 122157 1 D List, Warranty Service 122766 1 E Envelope 122785 1 3 Poly bag 110892 1 4 Insert 148354 1 5 Carton, 502C 148353 1 13502A Array (see Figure 4)MAIN PART LISTProduct code 040170 (gray) and 040171 (white) are a RoHS compliant version of the 502A.Only RoHS compliant parts liste