Cambridge-640TVII-tun-sm维修电路原理图.pdf

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1、 Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 640T V2 Issue Date: 16th August 2006 _ SERVICE MANUAL _ SPECIFICATIONS: Frequency Range VHF (87.5MHz to 108MHz) Band 2 DAB (175MHz to 240MHz) Band 3 DAB (1453MHz to 1491MHz) L-Band Aerial Input Impendence

2、 50 ohms Sensitivity -97dBm Typical Signal to Noise 105dB typical (DAB) 60dB typical (FM) Frequency Response 20-20kHz +0.1 -0.3dB (NCT at Flat, DAB) 20-12kHz +0, -6dB (NCT at Flat, FM) Distortion 0.005% 1kHz 2vrms o/p (DAB) 0.3%, 1kHz 50KHz deviation (FM) S/P DIF Output Sample Rate 48kHz Input Volta

3、ge 230V AC50Hz (UK/EU/AU) 115V AC60Hz (CU/US) Maximum Power Consumption 15W Standby Power Consumption 9W Dimensions (HxWxD) 70 x 430 x 305mm Weight 3.9kg (12.3Lbs) AP20602/1 RadioFans.CN 收音机爱 好者资料库 640T V2 SERVICE MANUAL TABLE OF CONTENTS Safety Precautions & Important Notes 3 Exploded Drawing 4 Exp

4、loded Drawing Parts List 5 Main PCB Schematic (Gyro 1120 Module & Control Bus) 6 Main PCB Schematic (DAC, Filter & PSU) 7 Main PCB Board Layout (Top Side) 8 Main PCB Board Layout (Bottom Side) 9 Main PCB BOM 10-11 Mains Supply PCB Schematic 12 Mains Supply PCB Board Layout (Top Side) 13 Mains Supply

5、 PCB Board Layout (Bottom Side) 14 Mains Supply PCB BOM 15 Front Panel PCB Schematic 16 Front Panel PCB Board Layout (Top Side) 17 Front Panel PCB Board Layout (Bottom Side) 18 Front Panel PCB BOM 19 IC Layout Details 20-22 2RadioFans.CN 收音机爱 好者资料库SAFETY PRECAUTIONS & IMPORTANT NOTES 1. Check that t

6、he rear of the product indicates the correct supply voltage for your area. 2. The lighting flash with the arrowhead within an equilateral triangle is intended to alert the user or service agent to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to

7、constitute a risk of electric shock to persons. 3. The exclamation point within an equilateral triangle is intended to alert the user or service agent to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the appliance. 4. This product complie

8、s with EEC Low Voltage (73/23/EEC) and Electromagnetic Compatibility (89/336/EEC) Directives when used and serviced in accordance with this manual. For continued compliance all components marked safety and EMC critical must only be replaced by Cambridge Audio approved parts. 5. Any unauthorised desi

9、gn alterations or additions will void the manufacturers warranty; furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. 6. When servicing, care should be taken to observe the original routing and dressing of the leads and it should be c

10、onfirmed that they have been returned to normal after re-assembly. Notes on chip component replacement Never reuse a component that has been removed from a PCB Notice that the minus side of a tantalum capacitor may be damaged by heat 3Cambridge Audio Azur 640T V2 DAB/FM Tuner Exploded Drawing 45Camb

11、ridge Audio Azur 640T V2 DAB/FM TunerAP19243/5 Main PCB Schematic (Gyro 1120 Module & Control Bus)IR OUTIR INEMITTER IR IN MODULATEDCN3JACK-CKX-3.5-123.5mm JACK+5V3OPT1GND2U14TSOP1836 IR RECEIVER5V ABusDGND123U15:A4011VDD=5V ABusVSS=DGNDR44220R12654NC3U16OP4N25564U15:B4011VDD=5V ABusVSS=DGND8910U15:

12、C4011VDD=5V ABusVSS=DGND121311U15:D4011VDD=5V ABusVSS=DGNDR4610KR4710K5V ABusDGNDR482R2R49100RQ5BC337-25R5010KDGNDR5147R36 kHzR43220R125CN4:AAV2-8,4-14/EC345CN4:BAV2-8,4-14/ECR52100RCONTROL BUS OUTUNMODULATED CONTROL BUS INPUTIR receiverAKD9CA IR DEMODULATOR5V LKR133RR233RR2933RR3033RR4233RR5333RR58

13、33RR5933RDGNDDGNDR6033RR6133RR6233RR6333RR6433RR6533RR66100KR67100KR68100KR69100KR70100KR71100KR72100KR73100KR74100KR75100KJP1JP2DGND25ADSA DATA24AXF23AHRW22AHAS21AHCS20ADGND19AHRDY18AHCNTL0/LINE317AHCNTL1/LINE216AHDSI/LINE015ALCD/HD014ALCD/HD113ALCD/HD212ALCD/HD311ALCD/HD410ALCD/HD59ALCD/HD68ALCD/H

14、D77ANRST6AHBIL/LINE15AHPI ENA4ADGND3ADVDD (3V3)2ADGND1AIR1BSDA2BSlave_SCL3BSlave_SDA4BSCL5BDGND6BDGND7BCDSYNC8BCDDATA9BCDCLK10BEXT_IO111BEXT_IO212BEXT_IO313BEXT_IO414BLCD_RS15BLCD_E16BINT017BAUDIO_MCLK18BAUDIO_BCLK19BAUDIO_LRCK20BAUDIO_DATA21BSPDIF22BAGND23BAGND24BAUDIOR25B+5V26ADGND27A+5VRF28AAGND2

15、6BAUDIOL27BAGND28BM201DABFM GYRO1120DGND+3V DAB+3V DAB+3V DABDGNDR7633RR7733RBeadSDATALRCKBCLKMCLKLCD-ELCD-RSMUTEBacklight1Backlight2Pwr LEDSPDIFIRC73100P 50V NP0C74100P 50V NP0C75100P 50V NP0C76100P 50V NP0C77100P 50V NP0C78100P 50V NP0C79100P 50V NP0C80100P 50V NP0C81100P 50V NP0C82100P 50V NP0C85

16、100N 50V CERC83100P 50V NP0C84100P 50V NP0BLGNDQ4MPSA14R784K75V LK2R8011KR8120RR824k75V LK2Q6BC337-25R8310kBacklight1Backlight2Backlight CircuitC5910U 16V ELC58100N 50V CERC57100N 50V CERC621N 50V NP0L1T FILTERDGND12345678910111213141516CN6CONN-H16BACKLEDLCD7LCD5LCD4LCD_ENLCD1GNDLCD0IRLCD_RSLCD2+5VL

17、CD6LCD3PWR+10VLCD-ELCD-RSIRBACKLEDBACKLED10V UNREGDGND5VPwr LEDD131N4148Q7BC337-25D141N4148IRS214S311S46IN48D47S13V+13IN11D12V-4GND5D310IN39D215IN216U13NJU201ADAGND-15V LK3+15V LK2C9447N 6C9547N 63V PEAGNDR10010kR10310kRight FBLeft FBS3S4S2S1DGNDC96100N 50V CERIR OutIR OutLK3LK10MM5V ABusR2710kAGNDL

18、K8LK10MMLK26LK15MMC102100N 50V CER5V ABusDGNDLK27LK10MM5VLK33LK10MMLK35LK10MMLK37LK10MM10V UNREG10V LK5V5V LKLK43LK10MMLK44LK15MMLK45LK15MMLK47LK15MMLK42LK10MMLK49LK15MMWarmWarmControl Bus IRLK50LK15MMLK51LK15MM5V LK22CW3CCW1PR1PRESET 2k 3296WLK48LK10MMLK54LK10MMJ1TERMINALDGNDC1031N 50V NP0J2TERMINA

19、LDGNDC1041N 50V NP0J3TERMINALDGNDC1051N 50V NP0J4TERMINALDGNDC1061N 50V NP0J5TERMINALAGNDC1071N 50V NP0J6TERMINALAGNDC1081N 50V NP0VI1VO3GND2U17805DGNDDGNDC1100N 50V CERC55100N 50V CER10V LKDynamicR101100RC109100U 25V ELR102100RC110100U 25V ELLK14LK15MMLK24LK15MMC111100N 50V CERC112100N 50V CERAGNDA

20、GNDR2410kR1064k7Q9BC337-25LK11LK10MMBLGNDC114100N 50V CERDGNDBLGNDLK18LK15MMC115100N 50V CERLK2LK10MMC116100U 16V ELC2100U 25V ELBacklight GroundC117100N 50V CERC118100N 50V CERBLGNDDGND10V LK5VDGNDC122100P 50V NP0DGNDFB1FERRITE BEADFB2FERRITE BEADBeadBead86-756-86879986Cambridge Audio Azur 640T V2

21、DAB/FM TunerAP19243/5 Main PCB Schematic (DAC, Filter & PSU)GND12U10:A74HC1434U10:B74HC14VI1VO3GND2U47815+15V-15V LKVI1VO3GND2U87805AGND123CN5POWERLEFT CHANNELRIGHT CHANNELDAC ANALOGUE56U10:C74HC14VI2VO3GND1U37915DGNDR34100RR332R21312U10:D74HC14R3191RR32430R1110U10:E74HC1498U10:F74HC14+21V UNREG-21V

22、 UNREG12RL1:A5V RELAYDGND10V UNREG345RL1:B5V RELAY678RL1:C5V RELAY5V LK2R358k2R362k2R384k7GND1VCC2INPUT3U2APTX179ATLRCIN1DIN2BCKIN3MODE8X4SCLK5DIFFHW6DGND7DVDD8AVDDR9AGNDR10VMIDR11VOUTRP12VOUTRN13AGND14AVDD15VOUTLN16VOUTLP17VMIDL18AGNDL19AVDDL20ZERO21RSTB22CSBIWO23MODE24MUTEB25MD/DM026MC/DM127ML/I2S

23、28U7WM874032184U6:ANE5532567U6:BNE5532AGND-15V LK+15V LKR222k2R232k2AGNDR2011kR1911kR165k6R175k6C442n2 PP 63VC412n2 PP 63VAGNDAGNDR212k7R182k732184U5:ANE5532567U5:BNE5532AGND-15V LK+15VR52k2R62k2AGNDR411kR711kR105k6R85k6C102n2 PP 63VC122n2 PP 63VAGNDAGNDR32k7R92k7AGNDDAC ANALOGUEAGNDDGNDAGNDAGNDR142

24、k2R152k2R112k2R122k2C422n2 PP 63VC132n2 PP 63V5VVI1VO3GND2U97805DGNDR371kC4510U 25V NPC2110U 25V NPC610U 25V NPC2310U 25V NPVI1VO3GND2U127805DAC DIGITALDGNDDAC DIGITAL124CN2:A3CN2:BZUANBAOAV2-8,4-13ELDGND123CN1ZUANBAO AV-8,4-8ESR1347RR4147RC14100p PP 63VC9100p PP 63VC37100p PP 63VC43100p PP 63VC5433

25、0pF 50V X7RAGNDC261N 50V NP0AGNDR5433RR5633RR5533RR5733R5V LK2SPDIFMUTEBCLKSDATALRCKMCLKQ2BC337-25Q3MPSA14D51N4004D71N4004D11N4004D21N4004D41N4004D31N4004D81N4004D101N400410V UNREG12CN72,5MM 2W ST HEADERD111N4004D121N4004C682200U 16V ELDGNDDGNDC65100N X7R (No Stuff)C64100N X7R (No Stuff)C66100N 100V

26、 X7RC242200U 35V ELC32200U 35V ELC547N 63V PEC447N 63V PEC5247N 63V PEC5047N 63V PEC4847N 63V PEC5347N 63V PEC4647U 25V ELC69100N 100V X7RC72100N X7R (No Stuff)C71100N X7R (No Stuff)C51100N 50V CERC4747U 25V ELC70100N 50V CERC3047U 25V ELC31100N 50V CERC18100N 50V CERC1747N PE 63VC1647N PE 63VC1547N

27、 PE 63VC2047N PE 63VC4047N PE 63VC3847N PE 63VC1147N PE 63VC847N PE 63VC3610N 63V PPC3310N 63V PPC631N 50V NP0C56100P 50V NP0C49100P 50V NP0C3247U 25V ELC710P 50V NPOC3910P 50V NPOACACR28130R 1W CarbonR842k2R852k232184U11:ANE5532AGND+15V LK-15V LK2567U11:BNE5532R864k7R874k7C6047N PE 63VC6147N PE 63V

28、AGNDAGNDR8818kR8918kR9013kR9118kAGNDR922k2R932k2R944k7R954k7AGNDR9618kR9713kR9818kR9918kAGNDAGNDC863.3nF 63VC923.3nF 63VRight FBLeft FBS4S3S2S1R104100kQ1BC327-25C19100N 50V CERLK6LK10MMLK9LK10MMLK10LK10MMLK19LK10MMLK20LK10MMLK23LK10MMLK28LK15MMLK29LK10MMLK30LK10MMLK34LK10MMLK36LK10MM-15VLK12LK10MMLK

29、13LK10MMLK21LK15MM+15V LKLK22LK10MMLK16LK10MM-15V LK2C6747N 63V PEC101100N 50V CERLK31LK10MMLK38LK15MM5V LK2DGNDC22100N 50V CERLK53LK10MMDGND5V LK2LK15LK10MMDGNDAGNDAGND and DGND are to be connected at the DAC (U7)LK4LK15MM-15V LK3+15V LK2LK5LK15MMC891N5 63V PPC881N5 63V PPC901N5 63V PPC911N5 63V PP

30、C9310N 63V PPC8710N 63V PP+-C294,7U 50V ELR10747RD61N4004D151N4004R2618kR10810k5V LK2C28100N 100V X7RC25100N 50V CERC27100N 50V CER3n3C34100U 25V NPC35100U 25V NPR109470kR110470kR111470kR112470kAGNDAGNDAGNDAGNDF1POLYFUSE 1-1AF2POLYFUSE 1-1AF4POLYFUSE 1-1AF3POLYFUSE 1-1AR254k7LK1LK15MMLK7LK15MMLK17LK

31、15MMQ8BC337-25MUTEC113100N 50V CERR3947kAGNDR4047kAGNDC9747U 25V ELC9847U 25V ELC9947U 25V ELC10047U 25V ELC119100N 50V CERC120100N 50V CERC1211N 50V NP086-756-86879987Cambridge Audio Azur 640T V2 DAB/FM TunerAP19243/5 Main PCB Board Layout (Top Side)Wolfson DACWM874086-756-86879988Cambridge Audio A

32、zur 640T V2 DAB/FM TunerAP19243/5 Main PCB Board Layout (Bottom Side)86-756-86879989AP19246/2AP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotesRESISTORS33R0.25W metal film20R1,R2,R29,R30,R42,R53-R65,R76,R772k70.25W metal film4R3,R9,R18,R2111k0.25W metal film5R4,R7,R19,R20,R802k20.25W m

33、etal film1012-202014-00013R5,R6,R11,R12,R14,R15,R22,R23,R36,R84,R85,R92,R935k60.25W metal film4R8,R10,R16,R1747R0.25W metal film1014-700014-0004R13,R41,R51,R10722k0.25W metal film1R2518k0.25W metal film7R26,R88,R89,R91,R96,R98,R9910k0.25W metal film1011-003014-0009R24,R27,R46,R47,R50,R83,R100,R103,R

34、10891R0.25W metal film1019-100014-0001R31430R0.25W metal film1R322R20.25W metal film1012-207014-0002R33,R48100R0.25W metal film1011-001014-0005R34,R49,R52,R101,R1028k20.25W metal film1R351k0.25W metal film1011-002014-0001R374k70.25W metal film1014-702014-0009R25,R38,R78,R82,R86,R87,R94,R95,R106220R0

35、.25W metal film1012-201014-0002R43,R4447k0.25W metal film2R39,R40100k0.25W metal film1011-004014-00011R66-R75,R10420R0.25W metal film1R81470k0.25W metal film4R109-R11213k0.25W metal film2R90,R97130R1W Carbon film1R28Raise resistor off PCBCAPACITORS100nF 50VCeramic1100-104043-00025C1,C18,C19,C22,C25,

36、C27,C31,C51,C55,C57,C58,C70,C85,C96,C101,C102,C111,C112,C113,C114,C115,C117-C12047uF 25VPolarised Electrolytic1102-470024-0008C30,C32,C46,C47,C97-C1002200uF 35VPolarised Electrolytic1102-222034-0002C3,C2447nF 63VPolyester Film1117-473053-00019C4,C5,C8,C11,C15-10uF 25VNon Polar Electrolytic1105-10002

37、4-0004C6,C21,C23,C4510pF 50VNP0 Ceramic1181-100042-0002C7,C39100pF 63VPolypropylene film1114-101062-0014C9,C14,C37,C432.2nF 63VPolypropylene film6C10,C12,C13,C41,C42,C441nF 50VNP0 Ceramic10C26,C62,C63,C103-C108,C121100nF 100VCeramic1106-104064-0013C28,C66,C694.7uF 50VPolarised Electrolytic1102-47704

38、4-0001C2910nF 63VPolypropylene film1114-103062-0014C33,C36,C87,C93100uF 25VNon Polar Electrolytic1105-101024-0002C34,C35100pF 50VNP0 Ceramic1181-101042-00015C49,C56,C73-C84,C122330pF 50VCeramic1C5410uF 16VPolarised Electrolytic1102-100014-0001C592200uF 16VPolarised Electrolytic1102-222014-0001C681.5

39、nF 63VPolypropylene film4C88-C913.3nF 63VPolypropylene film2C86,C92100u 16VPolarised Electrolytic1C116100u 25VPolarised Electrolytic1102-101024-0003C2,C109,C110TRANSISTORSPY219PNP Signal1301-327000-1001Q1BC237-25PY214NPN Signal1300-337000-1006Q2,Q5-Q9BC337-25NPN Darlington1300-140000-1002Q3,Q4MPSA14

40、DIODESPY962Rectifier1401-140040-00012D1-D8,D10-D12,D15Red LED1D9Signal1401-141480-0002D13,D145VVoltage Regulator4178-050334-7004U1,U8,U9,U12Mount U1 & U9 to Heatsink(7805)PY363Fibre Optic Transmitting Module4117-900990-0001U2APTX179AT -15VVoltage Regulator4179-150302-6001U3791515VVoltage Regulator41

41、78-150301-8001U47815PY259Op Amp4155-320052-9003U5,U6,U11NE5532PY585DAC4187-400990-0001U7WM8740PY343Hex Inverter4174-140052-9001U1074HC14Quad CMOS Switch IC1U13NJU201ADCMOS AND4140-110052-9001U154011PY1144Opto Isolator4142-500050-0011U16OP4N25CONNECTORSSingleBlack, Gold Plated2330-002901-0011CN1DualW

42、hite/Red, Gold Plated2330-003911-0321CN2Headphone Jack Black2320-003911-0071CN3DualOrange, Gold Plated2330-004911-0041CN43 WayStraight Header2300-003100-0041CN528 WayModule Connector2JP1, JP216 WayFFC2301-016901-0001CN62 WayStraight Header2300-002100-0031CN7Cambridge Audio 640T V2 DAB/FM Module & DA

43、C Main PCB BOMINTEGRATED CIRCUITSNote: resistors, capacitors and other generic electroniccomponents are not usually stocked by the manufacturer.Please obtain these locally.10AP19246/2AP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotesCambridge Audio 640T V2 DAB/FM Module & DAC Main PCB

44、BOMPOTS2k3296W Multiturn Preset1PR1Bourns Equivalent1.1APolyfuse4030-301100-0014F1-F4Isolation cover for C1161C116AP19629/1. To fit over C116 so that contact with Gyro module is avoided22nF 16VT Filter4003-306552-0001L1PY976GYRO1120DAB/FM Module1M201Please use the specific module for 640T V2PY5845VR

45、elay4050-000005-0021RL1Ferrite Bead on 24 AWG link wire1503-000000-1002FB1,FB2MISCELLANEOUSNote: resistors, capacitors and other generic electroniccomponents are not usually stocked by the manufacturer.Please obtain these locally.11Cambridge Audio Azur 640T V2 DAB/FM TunerAP19489/1 Mains Supply PCB

46、SchematicFU1T630mALVD!BLUEBROWN1J2TERMINAL1J1TERMINALP1EMC EARTH TAG/STUDSFU2T630mALVD!1J3TERMINALBLACK230V115V0VTransformer Connections1J4Switch1J5SwitchC21N X1/Y1 C&CLVD!C11N X1/Y1 C&CLVD!C347N X1LVD!L110U 5A T68-2A MAINSLVD!L210U 5A T68-2A MAINSLVD!LNECN386-756-868799812Cambridge Audio Azur 640T

47、V2 DAB/FM TunerAP19489/1 Mains Supply PCB Board Layout (Top Side)86-756-868799813Cambridge Audio Azur 640T V2 DAB/FM TunerAP19489/1 Mains Supply PCB Board Layout (Bottom Side)86-756-868799814AP19492AAP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotesCAPACITORS1N X1/Y1 C&C1119-102104-000

48、2C1,C2Mains Suppression47N X11110-473094-0001C3Mains SuppressionCONNECTORSIEC2336-003910-0021CN3Do not solder EARTH Pin (Middle Pin)MISCELLANEOUST630mA1FU1Cambridge Audio 640T V2 Mains PCB BOMNote: resistors, capacitors and other generic electroniccomponents are not usually stocked by the manufactur

49、ere.Please obtain these locally.15Cambridge Audio Azur 640T V2 DAB/FM TunerAP19247/3 Front Panel PCB Schematic74213560STRAT=POWERLCD MODULE16x2 ROWSAlphnumericGND15V2Vbias3RS4EN6R/W5DB07DB18DB29DB310DB411DB512DB613DB714LED +POSLED -NEGM1LCD16X2ALPHASW1Preset 3/8SW2Preset 5/10SW3PowerSW4Preset ShiftS

50、W5Preset 4/9R11K0R2100RR347RSW6Preset 2/712345678910111213141516CN1CONN-H16BACKLEDLCD7LCD5LCD4LCD_ENLCD1GNDLCD0IRLCD_RSLCD2+5VLCD6LCD3PWRSW7Preset 1/6R42K2R52K2R62K2R72K2R82K2R92K2R102K2R112K25V5VR122K2R132K2R142K2R152K2SW8AutotuneSW9InfoSW10DAB/FMR162K25VSW11UpSW12SelectSW13DownR172K2R184k75VR19220