Bose-3_2_1-hts-sm维修电路原理图.pdf

《Bose-3_2_1-hts-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Bose-3_2_1-hts-sm维修电路原理图.pdf（68页珍藏版）》请在收音机爱好者资料库上搜索。

1、1CONTENTSSafety Information.2Warranty.2Product Description.3Accessories .3Specifications. 4-7Electrostatic Discharge Sensitive (ESDS) Device Handling .8Part List Notes.8Frequently Ordered Items .9Packaging Part List, 321 Series II Home Entertainment System (see Figure 1).10Figure 1. 321 Series II Ho

2、me Entertainment System Packaging View .11Packaging Part List, 321 Series II Accessory Kit (see Figure 2) .12Figure 2. Accessory Kit Exploded View.12Main Part List, 321 Series II Console Assembly (see Figure 3).13Figure 3. 321 Series II Console Exploded View .14Main Part List, Bass Module (see Figur

3、e 4).15Figure 4. Bass Module Packaging View .15Main Part List, Standard 321 Array Assembly (see Figure 5) .16Figure 5. Standard 321 Array Assembly Exploded View .16Main Part List, 321 GS Array Assembly (see Figure 6) .17Figure 6. 321 GS Array Assembly Exploded View.17Electrical Part Lists. 18-41Cons

4、ole Main PCB Assembly . 18-29Console Tuner PCB Assembly . 30-33Bass Module DSP/Amplifier PCB Assembly. 34-40Bass Module Input/Output PCB Assembly.41Disassembly Procedures . 42-47Console Procedures . 42-45Bass Module Procedures . 45-46Standard Satellite Array Procedures .47GemstoneTM Satellite Array

5、Procedures.47Test Procedures . 48-52Figure 7. Console Main PCB Layer 1 Topside Etch Layout Diagram .53Figure 8. Console Main PCB Layer 2 Ground Plane Layout Diagram.54Figure 9. Console Main PCB Layer 3 Power Plane Layout Diagram.55Figure 10. Console Main PCB Layer 4 Bottom Etch Layout Diagram .56Fig

6、ure 11. Console Tuner PCB Topside Etch Layout Diagram .57Figure 12. Console Tuner PCB Bottom Side Etch Layout Diagram.58Figure 13. Bass Module DSP/Amplifier PCB Topside Etch Layout Diagram .59Figure 14. Bass Module DSP/Amplifier PCB Bottom Side Etch Layout Diagram.60Figure 15. Bass Module Input/Outp

7、ut PCB Topside Etch Layout Diagram.61Figure 16. Bass Module Input/Output PCB Bottom Side Etch Layout Diagram .61Appendix. 62-66Obtaining System Information from the Media Center Display.62DVD Lock options . 63-64Setting a password and restriction level .63DVD Lock Bypass.64321 Series II System Date

8、of Manufacture Information.64Glossary of Terms.65Service Manual Revision History.66RadioFans.CN 收音机爱 好者资料库2SAFETY 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 critica

9、l characteristicsrecommended by the manufacturer.2. Make leakage current or resistance 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

10、Check-With the unit completely reassembled, plug the AC line corddirectly into a 120V 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 Applianc

11、es and Underwriters Laboratories (UL)UL6500 / UL60065 / IEC 60065 paragraph 9.1.1. 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 cabin

12、et, screwheads,metallic overlays, control shafts, etc.), especially any exposed metal 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 SPEC

13、IFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BEELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.B. Insulation Resistance Test Cold Check-(1) Unplug the power supply and connect a jumperwire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measurethe r

14、esistance with an ohmmeter between the jumpered AC plug and each exposed metalliccabinet part on the unit. When testing 3 wire products, the resistance measured to the productenclosure should be between 2 and infinite MOhms. Also, the resistance measured to exposedinput/output connectors should be b

15、etween 4 and infinite MOhms. When testing 2 wire prod-ucts, the resistance measured to exposed input/output connectors should be between 4 andinfinite 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

16、returned to the customer.CAUTION: The Bose 321 Series II Home Entertainment Systemcontains no user-serviceable parts. To prevent warranty infractions,refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATIONTHIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OFBOSE CORPORAT

17、ION WHICH IS BEING FURNISHED ONLY FORTHE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCTBY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OFTHE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED ORUSED FOR ANY OTHER PURPOSE.The Bose 321 and 321GS Series II Home Entertainment Systems are covered by a limited1-ye

18、ar transferable warranty.WARRANTYRadioFans.CN 收音机爱 好者资料库3The 321 Series II Home Entertainment System is the replacement for the 321 and 321GSSeries I Home Entertainment Systems. It uses the same system concept of a console with adedicated bass module with TrueSpaceTM signal processed surround sound

19、from 2 satellitearrays.The console will play video DVDs, DVD-R and DVD+R discs, audio CDs, Video CDs, CD-R andCD-RWs, and MP3 CDs. MP3 disc tracks must be burned in a single closed session. The MP3disc format must be ISO9660 and each file must have an “.mp3” extension and have no otherperiods in the

20、 filename.The bass module electronics house some signal processing, power supplies and amplificationfor the console. The console and bass module are not compatible with the 321 Series I con-sole and bass module. They cannot be used to replace the other Series components. Thespeaker arrays are the sa

21、me as currently used on the 321 and 321GS systems. The systemincludes an enhanced universal type IR remote control similar to that used on the 321GSSeries I system. The remote is non-repairable.The 321 Series II uses standard 321 arrays with a cloth grille. The arrays are graphite incolor. The 321GS

22、 Series II systems use the GemstoneTM arrays in both graphite and silver.The array cable color matches the array color. The console for both 321 and 321GS systems isgraphite with a silver front bezel. The bass module is graphite, as is the IR remote control.PRODUCT DESCRIPTIONACCESSORIESThe Bose 321

23、 and 321GS Series II Home Entertainment Systems shelf speakers are com-patible with Bose mounting accessories, including the UB-20 wall brackets, UFS-20 floor standsand UTS-20 table stands.4SPECIFICATIONSSystem Specifications:Power Rating:US/Canada:120VAC, 60 Hz, 300WEurope/UK/Aus:220-240VAC, 50/60

24、Hz, 300WJapan:100VAC, 50/60 Hz, 300WDual Voltage:115/230VAC, 50/60 Hz, 300WConsole Inputs:VIDEO, CAB/SAT, AUXVideo Outputs:Composite Video, S-Video, Component VideoExternal Antennas:FM, 75 Ohm F-Connector (PAL, Europe)AM Loop, 2.5 mm mono connectorMaximum Ambient Temperature:45 degrees CLow Frequenc

25、y Cut-off (typical):Arrays:321 Array Cube: 180 Hz321GS Array Cube: 212 HzBass Module:45 HzWoofer Impedance:1.5 Ohms nominal DC resistance single wooferWeights:321 Series II Packed System:47.9 lb (21.7 kg)321GS Series II Packed System:44.1 lb (20.0 kg)Console:6.8 lb (3.08 kg)Bass Module:24.9 lb (11.7

26、7 kg)321 Arrays, each:3.0 lb (1.40 kg)321GS Arrays, each:1.1 lb (0.50 kg)IR Remote Control (batteries installed):0.44 lb (0.20 kg)Dimensions:Console:13.8 x 10.0 x 3.2 inches (34.9 x 25.3 x 8.2 cm)Bass Module:14 x 7.5 x 20.1 inches (35.6 x 18.4 x 51.1 cm)Bass Module internal volume:1205 cubic inches

27、(19.7 liters)321 Arrays:7.9 x 5.3 x 3.4 inches (200 x 134 x 86 mm)321GS Arrays:5.6 x 2.6 x 4.2 inches (142 x 65 x 106 mm)IR Remote:9.0 x 2.6 x 1.2 inches (229.6 x 64.8 x 31.2 mm)Distortion and Noise:-78 dB THD+N, unweighted, 22-22 kHz for a1 kHz signal at -1 dB -90 dB THD+N,unweighted, 22-22 kHz for

28、 a 1 kHz signal at -10 dBDynamic Range:-90 dB THD+N, unweighted,22-22 kHz for a 1 kHz signal at -60 dBDistortion: 0.1% 0.5 WOutput Noise: 400 mVrms, A-weighted5System Specifications (continued):Noise when Muted: 400 uVrms, A-weightedDC Offset: 40 dB 1 kHz, 30 dB 10 kHz, stereo modeConsole Specificat

29、ions:Compression Formats Supported for discsinserted into the DVD/CD drive:AC-3, MP3, DTS, MPEG-1 (VCD), MPEG-2Compression Formats NOT Supported fordiscs inserted into the DVD/CD drive:SACD Format (Sony), MLPDigital Formats Supported for sourcesconnected to the digital inputs:AC-3, DTS, AAC (Japan o

30、nly), PCMAnalog Input Characteristics:Maximum source signal for ADC full scale:2 VrmsMinimum source signal for ADC full scale:200 mVrmsInput Impedance:100k Ohms nominal +/- 10%Input Coupling:AC coupled to remove source DC offsetOutput level from FM (mono, 75 kHz dev):0.3 Vrms nominalOutput level fro

31、m AM (30% mod, 100 dBuV): 0.2 Vrms nominalSource Impedance at 1 kHz:1560 Ohms nominal, +/- 10%Output Coupling:ACS/PDIF Coaxial Input Characteristics:Sampling Rates Accommodated:38 kHz, 44.1 kHz, 48 kHzNumber of bits recognized:16, 20 and 24Input Impedance:75 Ohms +/- 10%Error Checking and Handling:I

32、mplements full error checking and handling,considering CRC, validity bit, loss of lock,parity error, and bi-phase error.Input Coupling:ACSPECIFICATIONS6Console Specifications (continued):Optical S/PDIF Input Characteristics:Sampling Rates Accommodated:38 kHz, 44.1 kHz and 48 kHzNumber of bits recogn

33、ized:16, 20 and 24Error Checking and Handling:Implements full error checking and handling,considering CRC, validity bit, loss of lock,parity error, and bi-phase error.Input Connector:TOSLINKVolume Control:0 dB to full attenuation in 100 steps (100 - 0 indi-cated). 0 volume causes the amplifiers to m

34、ute.Film EQ:Selectable on or offTone Controls:Treble Control:Range of -12 to +12 dB in 11 stepsBass Control:Range of -12 to +12 dB in 18 stepsFM Tuner Performance (per IHF-T-200):Channel Spacing:US/Can/Dual Voltage: 200 kHzEuro/UK/Aus:50 kHzJapan:100 kHzBand Limits:US/Can/Dual Voltage:87.7 MHz - 107

35、.9 MHzEuro/UK/Aus:87.50 MHz - 108.00 MHzJapan:76.00 MHz - 90.00 MHzDe-emphasis:US/Can/Dual Voltage:75 usecEuro/UK/Aus/Japan:50 usecMono Sensitivity (30dB (S+N+D)/(N+D):US/Can/Dual Voltage:(98 MHz) 15dBf nom/17.5 dBf limitEuro/UK/Aus/Japan:20 dBf nom / 25 dBf limitEuro/UK/Aus:(98 MHz) 16.0 dBf nom /

36、18.5 dBf limitJapan:(83 MHz) 15.0 dBf nom / 17.5 dBf limit50 dB Stereo Quieting Sensitivity:US/Can/Dual Voltage (98 MHz):38 dBf nom / 41.5 dBf limitEuro/UK/Aus (98 MHz):39.0 dBf nom / 42.5 dBf limitJapan (83 MHz):38 dBf nom / 41.5 dBf limitSignal to Noise Ratio 65 dBf:74 nom / limit 69 dB mono, 70 n

37、om / limit 65 dBstereoHarmonic Distortion 65 dBf:Mono 0.3% / limit 0.6%, stereo 0.4% / limit 0.8%Capture Ratio 45 dBf:2.0 dB nominal / limit 3.0 dBAM Rejection 45 dBf:60 dB nominal / 50 dB limitSPECIFICATIONS7SPECIFICATIONSConsole Specifications (continued):Adjacent Chan Selectivity (200 kHz):13 dB

38、nominal / 10 dB limit 45 dBfAlternate Chan Selectivity (400 kHz):US/Can/Dual/Japan:70 dB nom/65 dB limit 45 dBfEuro/UK/Aus:75 dB nom/70 dB limit 45 dBfImage Rejection:US/Can/Dual/Japan:45 dB nominal / 40 dB limitEuro/UK/Aus:Meets FTZ (Fernmelde Technischer Zentralamt)requirementRF Intermodulation:65

39、 dB nominal / 55 dB limitSub-carrier Product Rejection (at speaker):55 dB nominal / 45 dB limitFrequency Response relative toideal deemphasis:30 Hz to 15 kHz +/- 1.0 dB nominal, +/- 2.0 dB limitStereo Channel Separation 1 kHz:35 dB nominal / 25 dB limitAuto Stop Level (seek):30 dBf +/-5Mono/Stereo T

40、hreshold:40 dBf +/-5AM Tuner Performance (per IHF-T-100):Channel Spacing:US/CAN/DUAL:10 kHzEuro/UK/Aus/Japan:9 kHzBand Limits:US/CAN/Dual:530 kHz - 1710 kHzEuro/UK/Aus:522 kHz - 1611 kHzJapan:531 kHz - 1629 kHzUsable Sensitivity (mono, 1080 kHz):48 dB nominal / 54 dB limitAdjacent Channel Selectivit

41、y:23 dB nominal / 18 dB limitAlternate Channel Selectivity:30 dB nominal / 25 dB limitImage Rejection:40 dB nominal / 35 dB limitAuto Stop Level:58 dBuV/m +/- 5 dBSignal to Noise Ratio:50 dB nominal / 45 dB limitDistortion ( 30% modulation):1.0% nominal / 1.4% limitFrequency Response:220 Hz: -3 dB n

42、ominal / -6 dB limit2.0 kHz: -3 dB nominal / -6 dB limit8PART LIST NOTES1. This part is not normally 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

43、 critical for safety purposes. Failure to use a substitute replacement with the same safety characteristics 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 n

44、ext higher assembly for a replacement part.ELECTROSTATIC 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 station. Wear wrist straps th

45、at 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 totes. Do not insert unprotec

46、ted devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or plastic trays.9FREQUENTLY ORDERED ITEMSMain Assemblies Part Number CONSOLE ASSY, DVD, 120V, GRAPHITE, REGION 1 270900-11119 ASSEMBLY, BASS MODULE, 120V, GRAPHITE 273031-11119 Arrays Part Number ARRAY ASS

47、Y, 321 II, GRAPHITE 255198-001 ARRAY ASSY, 321GS II, GRAPHITE 269990-001 ARRAY ASSY, 321GS II, SILVER 269990-003 Remote Control Part Number REMOTE, IR, 3.2.1 SERIES II 270618-001 BATTERY, CARBON, AA SIZE (2 REQUIRED) 147538 Accessory Kits Part Number ACCESSORY KIT W/REMOTE, 321 II US, GRAPHITE 27304

48、1-011 ACCESSORY KIT W/REMOTE, 321GS II, US, GRAPHITE 273041-111 ACCESSORY KIT W/REMOTE, 321GS II, US, SILVER 273041-311 Cables Part Number CABLE, BASS MODULE, 13 PIN, GRAPHITE 269997-001 CABLE, STANDARD ARRAY, 9 PIN, GRAPHITE 255123-001 CABLE, GEMSTONETM ARRAY, 9 PIN, GRAPHITE 269984-001 CABLE, GEMS

49、TONE ARRAY, 9 PIN, SILVER 269984-003 CABLE, AUDIO, DUAL RCA 185931-01 CABLE, VIDEO, 6, YL 183200 Antennas Part Number ANTENNA, FM DIPOLE, 75 OHM, F CONN 148589 ANTENNA, ASSY, AM, CD 20 199824-002 Line Cord Part Number LINE CORD, 120V, POL, DET, GRAPHITE 260082-001 Owners Guide Part Number GUIDE, OWN

50、ERS, 3-LANG 321 II 274559 Feet Part Number BUMPER, RECESSED, FOOT, .88 (QTY 4 FEET PER STRIP, USED ON THE BASS MODULE) 142839 FOOT, CLEAR, .312 X 0.85 (QTY 4 FEET PER STRIP, USED ON THE ARRAYS) 178321-04 Other Part Number DVD, SETUP AND DEMO, 321 II, NTSC 277723 Extended Length Cables Part Number SY