Cambridge-640TII-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 furthermore the manufacturer cannot accept

4、 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 confirmed that they have been returned to normal after re-assembly. Notes on chip component replacement Never

5、 reuse a component that has been removed from a PCB Notice that the minus side of a tantalum capacitor may be damaged by heat 3 Cambridge Audio Azur 640T V2 DAB/FM Tuner Exploded Drawing 4 5 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19243/5 Main PCB Schematic (Gyro 1120 Module & Control Bus) IR OU

6、T IR IN EMITTER IR IN MODULATED CN3 JACK-CKX-3.5-12 3.5mm JACK +5V 3 OPT 1 GND 2 U14 TSOP1836 IR RECEIVER 5V ABus DGND 1 2 3 U15:A 4011 VDD=5V ABus VSS=DGND R44 220R 1 2 6 5 4 NC 3 U16 OP4N25 5 6 4 U15:B 4011 VDD=5V ABus VSS=DGND 8 9 10 U15:C 4011 VDD=5V ABus VSS=DGND 12 13 11 U15:D 4011 VDD=5V ABus

7、 VSS=DGND R46 10K R47 10K 5V ABus DGND R48 2R2 R49 100R Q5 BC337-25 R50 10K DGND R51 47R 36 kHz R43 220R 1 2 5 CN4:A AV2-8,4-14/EC 3 4 5 CN4:B AV2-8,4-14/EC R52 100R CONTROL BUS OUT UNMODULATED CONTROL BUS INPUT IR receiver A K D9 CA IR DEMODULATOR 5V LK R1 33RR2 33RR29 33RR30 33RR42 33RR53 33RR58 3

8、3RR59 33R DGND DGND R60 33RR61 33R R62 33RR63 33RR64 33RR65 33R R66 100K R67 100K R68 100K R69 100K R70 100K R71 100K R72 100K R73 100K R74 100K R75 100K JP1JP2 DGND 25A DSA DATA 24A XF 23A HRW 22A HAS 21A HCS 20A DGND 19A HRDY 18A HCNTL0/LINE3 17A HCNTL1/LINE2 16A HDSI/LINE0 15A LCD/HD0 14A LCD/HD1

9、 13A LCD/HD2 12A LCD/HD3 11A LCD/HD4 10A LCD/HD5 9A LCD/HD6 8A LCD/HD7 7A NRST 6A HBIL/LINE1 5A HPI ENA 4A DGND 3A DVDD (3V3) 2A DGND 1A IR 1B SDA 2B Slave_SCL 3B Slave_SDA 4B SCL 5B DGND 6B DGND 7B CDSYNC 8B CDDATA 9B CDCLK 10B EXT_IO1 11B EXT_IO2 12B EXT_IO3 13B EXT_IO4 14B LCD_RS 15B LCD_E 16B IN

10、T0 17B AUDIO_MCLK 18B AUDIO_BCLK 19B AUDIO_LRCK 20B AUDIO_DATA 21B SPDIF 22B AGND 23B AGND 24B AUDIOR 25B +5V 26A DGND 27A +5VRF 28A AGND 26B AUDIOL 27B AGND 28B M201 DABFM GYRO1120 DGND +3V DAB +3V DAB +3V DAB DGND R76 33RR77 33R Bead SDATA LRCK BCLK MCLK LCD-E LCD-RS MUTE Backlight1 Backlight2 Pwr

11、 LED SPDIF IR C73 100P 50V NP0 C74 100P 50V NP0 C75 100P 50V NP0 C76 100P 50V NP0 C77 100P 50V NP0 C78 100P 50V NP0 C79 100P 50V NP0 C80 100P 50V NP0 C81 100P 50V NP0 C82100P 50V NP0 C85 100N 50V CER C83 100P 50V NP0 C84 100P 50V NP0 BLGND Q4 MPSA14 R78 4K7 5V LK2 R80 11K R81 20R R82 4k7 5V LK2 Q6 B

12、C337-25 R83 10k Backlight1 Backlight2 Backlight Circuit C59 10U 16V EL C58 100N 50V CER C57 100N 50V CER C62 1N 50V NP0 L1 T FILTER DGND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CN6 CONN-H16 BACKLED LCD7 LCD5 LCD4 LCD_EN LCD1 GND LCD0 IR LCD_RS LCD2 +5V LCD6 LCD3 PWR +10V LCD-E LCD-RS IR BACKLED BACKL

13、ED 10V UNREG DGND 5V Pwr LED D13 1N4148 Q7 BC337-25 D14 1N4148 IR S2 14 S3 11 S4 6 IN4 8 D4 7 S1 3 V+ 13 IN1 1 D1 2 V- 4 GND 5 D3 10 IN3 9 D2 15 IN2 16 U13 NJU201AD AGND -15V LK3 +15V LK2 C94 47N 6 C95 47N 63V PE AGND R100 10k R103 10k Right FB Left FB S3 S4 S2S1 DGND C96 100N 50V CER IR Out IR Out

14、LK3 LK10MM 5V ABus R27 10k AGND LK8 LK10MM LK26 LK15MM C102 100N 50V CER 5V ABus DGND LK27 LK10MM 5V LK33 LK10MM LK35 LK10MM LK37 LK10MM 10V UNREG10V LK 5V5V LK LK43 LK10MM LK44 LK15MM LK45 LK15MM LK47 LK15MM LK42 LK10MM LK49 LK15MM Warm Warm Control Bus IR LK50 LK15MM LK51 LK15MM 5V LK2 2 CW 3 CCW

15、1 PR1 PRESET 2k 3296W LK48 LK10MM LK54 LK10MM J1 TERMINAL DGND C103 1N 50V NP0 J2 TERMINAL DGND C104 1N 50V NP0 J3 TERMINAL DGND C105 1N 50V NP0 J4 TERMINAL DGND C106 1N 50V NP0 J5 TERMINAL AGND C107 1N 50V NP0 J6 TERMINAL AGND C108 1N 50V NP0 VI 1 VO 3 GND 2 U1 7805 DGND DGND C1 100N 50V CER C55 10

16、0N 50V CER 10V LK Dynamic R101 100R C109 100U 25V EL R102 100R C110 100U 25V EL LK14 LK15MM LK24 LK15MM C111 100N 50V CER C112 100N 50V CER AGNDAGND R24 10k R106 4k7 Q9 BC337-25 LK11 LK10MM BLGND C114 100N 50V CER DGNDBLGND LK18 LK15MM C115 100N 50V CER LK2 LK10MM C116 100U 16V EL C2 100U 25V EL Bac

17、klight Ground C117 100N 50V CER C118 100N 50V CER BLGNDDGND 10V LK5V DGND C122 100P 50V NP0 DGND FB1 FERRITE BEAD FB2 FERRITE BEAD Bead Bead 86-756-8687998 6 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19243/5 Main PCB Schematic (DAC, Filter & PSU) GND 12 U10:A 74HC14 34 U10:B 74HC14 VI 1 VO 3 GND 2

18、 U4 7815 +15V -15V LK VI 1 VO 3 GND 2 U8 7805 AGND 1 2 3 CN5 POWER LEFT CHANNEL RIGHT CHANNEL DAC ANALOGUE 56 U10:C 74HC14 VI 2 VO 3 GND 1 U3 7915 DGND R34 100R R33 2R2 1312 U10:D 74HC14 R31 91R R32 430R 1110 U10:E 74HC14 98 U10:F 74HC14 +21V UNREG -21V UNREG 1 2RL1:A 5V RELAY DGND 10V UNREG 3 4 5 R

19、L1:B 5V RELAY 6 7 8 RL1:C 5V RELAY 5V LK2 R35 8k2 R36 2k2 R38 4k7 GND 1 VCC 2 INPUT 3 U2 APTX179AT LRCIN 1 DIN 2 BCKIN 3 MODE8X 4 SCLK 5 DIFFHW 6 DGND 7 DVDD 8 AVDDR 9 AGNDR 10 VMIDR 11 VOUTRP 12 VOUTRN 13 AGND 14 AVDD 15 VOUTLN 16 VOUTLP 17 VMIDL 18 AGNDL 19 AVDDL 20 ZERO 21 RSTB 22 CSBIWO 23 MODE

20、24 MUTEB 25 MD/DM0 26 MC/DM1 27 ML/I2S 28 U7 WM8740 3 2 1 84 U6:A NE5532 5 6 7 U6:B NE5532 AGND -15V LK +15V LK R22 2k2 R23 2k2 AGND R20 11k R19 11k R16 5k6 R17 5k6 C44 2n2 PP 63V C41 2n2 PP 63V AGNDAGND R21 2k7 R18 2k7 3 2 1 84 U5:A NE5532 5 6 7 U5:B NE5532 AGND -15V LK +15V R52k2 R6 2k2 AGND R4 11

21、k R7 11k R10 5k6 R8 5k6 C10 2n2 PP 63V C12 2n2 PP 63V AGNDAGND R3 2k7 R9 2k7 AGND DAC ANALOGUE AGND DGND AGND AGND R14 2k2 R15 2k2 R11 2k2 R12 2k2 C42 2n2 PP 63V C13 2n2 PP 63V 5V VI 1 VO 3 GND 2 U9 7805 DGND R37 1k C45 10U 25V NP C21 10U 25V NP C6 10U 25V NP C23 10U 25V NP VI 1 VO 3 GND 2 U12 7805

22、DAC DIGITAL DGND DAC DIGITAL 1 2 4 CN2:A 3 CN2:B ZUANBAOAV2-8,4-13EL DGND 12 3 CN1 ZUANBAO AV-8,4-8ES R13 47R R41 47R C14 100p PP 63V C9 100p PP 63V C37 100p PP 63V C43 100p PP 63V C54 330pF 50V X7R AGND C26 1N 50V NP0 AGND R54 33R R56 33R R55 33R R57 33R 5V LK2 SPDIF MUTE BCLK SDATA LRCK MCLK Q2 BC

23、337-25 Q3 MPSA14 D5 1N4004 D7 1N4004 D1 1N4004 D2 1N4004 D4 1N4004 D3 1N4004 D8 1N4004 D10 1N4004 10V UNREG 1 2 CN7 2,5MM 2W ST HEADER D11 1N4004 D12 1N4004 C68 2200U 16V EL DGND DGND C65 100N X7R (No Stuff) C64 100N X7R (No Stuff) C66 100N 100V X7R C24 2200U 35V EL C3 2200U 35V EL C5 47N 63V PE C4

24、47N 63V PE C52 47N 63V PE C50 47N 63V PE C48 47N 63V PE C53 47N 63V PE C46 47U 25V EL C69 100N 100V X7R C72 100N X7R (No Stuff) C71 100N X7R (No Stuff) C51 100N 50V CER C47 47U 25V EL C70 100N 50V CER C30 47U 25V EL C31 100N 50V CER C18 100N 50V CER C17 47N PE 63V C16 47N PE 63V C15 47N PE 63V C20 4

25、7N PE 63V C40 47N PE 63V C38 47N PE 63V C11 47N PE 63V C8 47N PE 63V C36 10N 63V PP C33 10N 63V PP C63 1N 50V NP0 C56 100P 50V NP0 C49 100P 50V NP0 C32 47U 25V EL C710P 50V NPO C39 10P 50V NPO AC AC R28 130R 1W Carbon R84 2k2 R85 2k2 3 2 1 84 U11:A NE5532 AGND +15V LK -15V LK2 5 6 7 U11:B NE5532 R86

26、 4k7 R87 4k7 C60 47N PE 63V C61 47N PE 63V AGND AGND R88 18k R89 18k R90 13k R91 18k AGND R92 2k2 R93 2k2 R94 4k7 R95 4k7 AGND R96 18k R97 13k R98 18k R99 18k AGND AGND C86 3.3nF 63V C92 3.3nF 63V Right FB Left FB S4 S3 S2S1 R104 100k Q1 BC327-25 C19 100N 50V CER LK6 LK10MM LK9 LK10MM LK10 LK10MM LK

27、19 LK10MM LK20 LK10MM LK23 LK10MM LK28 LK15MM LK29 LK10MM LK30 LK10MM LK34 LK10MM LK36 LK10MM -15V LK12 LK10MM LK13 LK10MM LK21 LK15MM +15V LK LK22 LK10MM LK16 LK10MM -15V LK2 C67 47N 63V PE C101 100N 50V CER LK31 LK10MM LK38 LK15MM 5V LK2 DGND C22 100N 50V CER LK53 LK10MM DGND 5V LK2 LK15 LK10MM DG

28、NDAGND AGND and DGND are to be connected at the DAC (U7) LK4 LK15MM -15V LK3 +15V LK2 LK5 LK15MM C89 1N5 63V PP C88 1N5 63V PP C90 1N5 63V PP C91 1N5 63V PP C93 10N 63V PP C87 10N 63V PP +- C29 4,7U 50V EL R107 47R D6 1N4004 D15 1N4004 R26 18k R108 10k 5V LK2 C28 100N 100V X7R C25 100N 50V CER C27 1

29、00N 50V CER 3n3 C34 100U 25V NP C35 100U 25V NP R109 470k R110 470k R111470k R112470k AGNDAGND AGNDAGND F1 POLYFUSE 1-1A F2 POLYFUSE 1-1A F4 POLYFUSE 1-1A F3 POLYFUSE 1-1A R25 4k7 LK1 LK15MM LK7 LK15MM LK17 LK15MM Q8 BC337-25 MUTE C113 100N 50V CER R39 47k AGND R40 47k AGND C97 47U 25V EL C98 47U 25

30、V EL C99 47U 25V EL C100 47U 25V EL C119 100N 50V CER C120 100N 50V CER C121 1N 50V NP0 86-756-8687998 7 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19243/5 Main PCB Board Layout (Top Side) Wolfson DAC WM8740 86-756-8687998 8 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19243/5 Main PCB Board Layout

31、(Bottom Side) 86-756-8687998 9 AP19246/2 AP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotes RESISTORS 33R0.25W metal film20R1,R2,R29,R30,R42,R53-R65,R76,R77 2k70.25W metal film4R3,R9,R18,R21 11k0.25W metal film5R4,R7,R19,R20,R80 2k20.25W metal film1012-202014-00013R5,R6,R11,R12,R14,R15

32、,R22,R23,R36,R84,R85,R92,R93 5k60.25W metal film4R8,R10,R16,R17 47R0.25W metal film1014-700014-0004R13,R41,R51,R107 22k0.25W metal film1R25 18k0.25W metal film7R26,R88,R89,R91,R96,R98,R99 10k0.25W metal film1011-003014-0009R24,R27,R46,R47,R50,R83,R100,R103,R108 91R0.25W metal film1019-100014-0001R31

33、 430R0.25W metal film1R32 2R20.25W metal film1012-207014-0002R33,R48 100R0.25W metal film1011-001014-0005R34,R49,R52,R101,R102 8k20.25W metal film1R35 1k0.25W metal film1011-002014-0001R37 4k70.25W metal film1014-702014-0009R25,R38,R78,R82,R86,R87,R94,R95,R106 220R0.25W metal film1012-201014-0002R43

34、,R44 47k0.25W metal film2R39,R40 100k0.25W metal film1011-004014-00011R66-R75,R104 20R0.25W metal film1R81 470k0.25W metal film4R109-R112 13k0.25W metal film2R90,R97 130R1W Carbon film1R28Raise resistor off PCB CAPACITORS 100nF 50VCeramic1100-104043-00025 C1,C18,C19,C22,C25,C27,C31,C51,C55,C57,C58,C

35、70,C85,C96,C101,C102,C 111,C112,C113,C114,C115,C117-C120 47uF 25VPolarised Electrolytic1102-470024-0008C30,C32,C46,C47,C97-C100 2200uF 35VPolarised Electrolytic1102-222034-0002C3,C24 47nF 63VPolyester Film1117-473053-00019C4,C5,C8,C11,C15- 10uF 25VNon Polar Electrolytic1105-100024-0004C6,C21,C23,C45

36、 10pF 50VNP0 Ceramic1181-100042-0002C7,C39 100pF 63VPolypropylene film1114-101062-0014C9,C14,C37,C43 2.2nF 63VPolypropylene film6C10,C12,C13,C41,C42,C44 1nF 50VNP0 Ceramic10C26,C62,C63,C103-C108,C121 100nF 100VCeramic1106-104064-0013C28,C66,C69 4.7uF 50VPolarised Electrolytic1102-477044-0001C29 10nF

37、 63VPolypropylene film1114-103062-0014C33,C36,C87,C93 100uF 25VNon Polar Electrolytic1105-101024-0002C34,C35 100pF 50VNP0 Ceramic1181-101042-00015C49,C56,C73-C84,C122 330pF 50VCeramic1C54 10uF 16VPolarised Electrolytic1102-100014-0001C59 2200uF 16VPolarised Electrolytic1102-222014-0001C68 1.5nF 63VP

38、olypropylene film4C88-C91 3.3nF 63VPolypropylene film2C86,C92 100u 16VPolarised Electrolytic1C116 100u 25VPolarised Electrolytic1102-101024-0003C2,C109,C110 TRANSISTORS PY219PNP Signal1301-327000-1001Q1BC237-25 PY214NPN Signal1300-337000-1006Q2,Q5-Q9BC337-25 NPN Darlington1300-140000-1002Q3,Q4MPSA14

39、 DIODES PY962Rectifier1401-140040-00012D1-D8,D10-D12,D15 Red LED1D9 Signal1401-141480-0002D13,D14 5VVoltage Regulator4178-050334-7004U1,U8,U9,U12 Mount U1 & U9 to Heatsink (7805) PY363 Fibre Optic Transmitting Module 4117-900990-0001U2APTX179AT -15VVoltage Regulator4179-150302-6001U37915 15VVoltage

40、Regulator4178-150301-8001U47815 PY259Op Amp4155-320052-9003U5,U6,U11NE5532 PY585DAC4187-400990-0001U7WM8740 PY343Hex Inverter4174-140052-9001U1074HC14 Quad CMOS Switch IC1U13NJU201AD CMOS AND4140-110052-9001U154011 PY1144Opto Isolator4142-500050-0011U16OP4N25 CONNECTORS SingleBlack, Gold Plated2330-

41、002901-0011CN1 DualWhite/Red, Gold Plated2330-003911-0321CN2 Headphone Jack Black2320-003911-0071CN3 DualOrange, Gold Plated2330-004911-0041CN4 3 WayStraight Header2300-003100-0041CN5 28 WayModule Connector2JP1, JP2 16 WayFFC2301-016901-0001CN6 2 WayStraight Header2300-002100-0031CN7 Cambridge Audio

42、 640T V2 DAB/FM Module & DAC Main PCB BOM INTEGRATED CIRCUITS Note: resistors, capacitors and other generic electronic components are not usually stocked by the manufacturer. Please obtain these locally. 10 AP19246/2 AP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotes Cambridge Audio 64

43、0T V2 DAB/FM Module & DAC Main PCB BOM POTS 2k3296W Multiturn Preset1PR1Bourns Equivalent 1.1APolyfuse4030-301100-0014F1-F4 Isolation cover for C1161C116 AP19629/1. To fit over C116 so that contact with Gyro module is avoided 22nF 16VT Filter4003-306552-0001L1 PY976GYRO1120DAB/FM Module1M201 Please

44、use the specific module for 640T V2 PY5845VRelay4050-000005-0021RL1 Ferrite Bead on 24 AWG link wire 1503-000000-1002FB1,FB2 MISCELLANEOUS Note: resistors, capacitors and other generic electronic components are not usually stocked by the manufacturer. Please obtain these locally. 11 Cambridge Audio

45、Azur 640T V2 DAB/FM Tuner AP19489/1 Mains Supply PCB Schematic FU1 T630mA LVD! BLUE BROWN 1 J2 TERMINAL 1 J1 TERMINAL P1 EMC EARTH TAG/STUDS FU2 T630mA LVD! 1 J3 TERMINAL BLACK 230V 115V 0V Transformer Connections 1 J4 Switch 1 J5 Switch C2 1N X1/Y1 C&C LVD! C1 1N X1/Y1 C&C LVD! C3 47N X1 LVD! L1 10

46、U 5A T68-2A MAINS LVD! L2 10U 5A T68-2A MAINS LVD! L N E CN3 86-756-8687998 12 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19489/1 Mains Supply PCB Board Layout (Top Side) 86-756-8687998 13 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19489/1 Mains Supply PCB Board Layout (Bottom Side) 86-756-8687998

47、 14 AP19492A AP Part NoValueDescriptionFactory Part NoQtyComponent IdentNotes CAPACITORS 1N X1/Y1 C&C1119-102104-0002C1,C2Mains Suppression 47N X11110-473094-0001C3Mains Suppression CONNECTORS IEC2336-003910-0021CN3Do not solder EARTH Pin (Middle Pin) MISCELLANEOUS T630mA1FU1 Cambridge Audio 640T V2

48、 Mains PCB BOM Note: resistors, capacitors and other generic electronic components are not usually stocked by the manufacturere. Please obtain these locally. 15 Cambridge Audio Azur 640T V2 DAB/FM Tuner AP19247/3 Front Panel PCB Schematic 7 4 2 1 3 5 6 0 STRAT=POWER LCD MODULE 16x2 ROWS Alphnumeric

49、GND 1 5V 2 Vbias 3 RS 4 EN 6 R/W 5 DB0 7 DB1 8 DB2 9 DB3 10 DB4 11 DB5 12 DB6 13 DB7 14 LED + POS LED - NEG M1 LCD16X2ALPHA SW1 Preset 3/8 SW2 Preset 5/10 SW3 Power SW4 Preset Shift SW5 Preset 4/9 R1 1K0 R2 100R R3 47R SW6 Preset 2/7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CN1 CONN-H16 BACKLED LCD7 LCD5 LCD4 LCD_EN LCD1 GND LCD0 IR LCD_RS LCD2 +5V LCD6