Cambridge-740C-cd-sm维修电路图 手册.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 740C Issue Date: 28th September 2007 _ SERVICE MANUAL _ SPECIFICATIONS: D/A converters Dual Wolfson WM8740 24 bit DACs Digital filter Analog Devices Black Fin ADSP-BF532 32 bit DSP Performing ATF Upsamplin

2、g to 24 bit 384kHz Analog filter 2 Pole Dual Differential Bessel Double Virtual Earth Balanced Frequency Response 20Hz to 20 kHz (+/-0.1dB) THD 1kHz 0dBFs 0.0008% THD 1kHz -10dBFs 0.0005% THD 20kHz )dBFs 0.001% IMD (19/20kHz) 0dBFs 113dB Total correlated jitter 130pS Crosstalk 1kHz -130dB Crosstalk

3、20kHz -110dB Output impedance 50 ohms Digital input word widths supported 16 24 bit Digital input word widths supported 16, 20, 24 bit Digital input sampling frequencies supported 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz Digital output sampling frequencies supported 32kHz 192kHz pass

4、through (including 44.1kHz for CD) 48kHz, 96kHz, 192kHz upsampled Audio output upsampling Fixed 24 bit, 384kHz Dimensions H x W x D 115 x 430 x 315mm (4.5 x 16.9 x 12.4”) Weight 6.4Kg (14.1Lbs) AP22735/1 1 RadioFans.CN 740C SERVICE MANUAL TABLE OF CONTENTS Safety Precautions furthermore the manufact

5、urer 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 confirmed that they have been returned to normal after re-assembly. Notes on chip component

6、 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 COPYRIGHT NOTICE. 2007 Audio Partnership PLC. All rights reserved. Cambridge Audio and Azur are registered trademarks for Audio Partnership PLC. This docume

7、nt may not be reproduced, distributed, transmitted, displayed, published, or broadcast without the express written prior permission of Audio Partnership PLC. Alteration or removal of any trademark, copyright, or other notice from this content is prohibited. Information provided in this document is p

8、rovided solely for the use of official service agents in repairing and servicing Audio Partnership PLC products. 3 RadioFans.CN Cambridge Audio Azur 740C CD Player Exploded Diagram To enhance viewing, please print to A34 RadioFans.CN Cambridge Audio Azur 740C CD Player Exploded Diagram Parts List no

9、i tpi r cseDrebmuNt raPyrotcaFrebmuNt raPPAfeRgniwarD 1PY12287003-008010E006Screw M3*8 M/C torx recess ZN-PT (Silver) 2PY12297003-008010E001Screw M3*8 M/C torx recess BLK-PT (Black) 3PY12706574-010009E000-02Azur 740C Top Panel-S (With Painted) 3PY12716574-010009E000-01Azur 740C Top Panel-B (With Pai

10、nted) 4PY10326550-150017E001-02Larger Side Panel Silver Painted 4PY10336550-150017E001-01Larger Side Panel Black Painted 5PY12728574-001000E301Azur-740C Silver Front Panel Assy Rev A 5PY12738574-001010E301Azur-740C Black Front Panel Assy Rev A 6PY12746574-010012E002A01Azur 740C Front Panel-S Artwork

11、 AP20101*& AP20102* 6PY12756574-010012E002-01Azur 740C Front Panel-B Artwork AP20101*& AP20102* 7PY12769474-001000E041Azur-740C Control PCB Assy Rev A 8PY12779474-001000E071Azur-740C Main Power Input PCBA Rev A 9PY12789474-001000E181Azur-740C Servo PCBA Rev A 10PY11754006-740058E001740C DAC Module 1

12、1PY9409692-006002-201Azur V2 CD Mechanism Assy with Sanyo DA11V Rev A 12PY9413009-110000-002V2 CD Sanyo Laser DA11V 13PY12224006-840001E000Azur 840C Display Module MBCF00003B00V0 14PY11226074-150004E000Azur 840A Plastic Foot (Black) 14PY11246074-150004E000A01Azur 840A Plastic Foot (Silver) 15PY13563

13、200-082661E000Transformer AC230 (EU) TO8266A for 740C 15PY13573200-082591E000Transformer AC115/60Hz TO8259A for 740C (CU Version) 16PY11659805-084000E001Azur 840A/C 740A/C Remote Control Assy Rev A 5 RadioFans.CN Cambridge Audio Azur 740C CD Player AP19135/4 Front Panel Circuit Diagram CONTROL BUS S

14、PI DATARX SPI INT SPI DATATX SPI CLK SPI CS SERIALTX SERIAL RX OE1 SO1_U7 SO2_U7 SO1_U9 MUTE C1 1n 50V X7R C2 1n 50V X7R 1 2 3 4 5 6 7 CN1 CONN-H7 K1 K2 POWER DETECT RESET GND +5V REMOTE 1 2 3 4 5 6 7 8 CN2 CONN-H8 1 2 3 4 5 6 7 8 CN3 CONN-H8 1 2 3 4 5 6 7 CN4 CONN-H7 +5V +5V 3 OPT 1 GND 2 U1 TSOP18

15、 IR RECEIVER C3 100n R1 47R SW1 Standby SW2 Menu SW6 Stop SW3 Select SW4 Open/Close SW5 Play/Pause SW7 Back Skip SW8 Forward Skip R2 220R LED MCLR/VPP 1 RA0/AN0 2 RA1/AN1 3 RA2/AN2 4 RA3/AN3/VREF 5 RA4/T0CKI 6 RA5/AN4/SS 7 RE0/RD/AN5 8 RE1/WR/AN6 9 RB4 37 RB3/PGM 36 RB2 35 RB0/INT 33 VDD 32 VSS 31 R

16、D7/PSP7 30 RD6/PSP6 29 RB1 34 RD5/PSP5 28 RD4/PSP4 27 RC7/RX/DT 26 RC5/SDO 24 RC4/SDI/SDA 23 RD3/PSP3 22 RD2/PSP2 21 RC6/TX/CK 25 VDD 11 VSS 12 OSC1/CLKIN 13 OSC2/CLKOUT 14 RCO/T1OSO/T1CKI 15 RC1/T1OSI/CCP2 16 RC2/CCP1 17 RC3/SCK/SCL 18 RD0/PSP0 19 RE2/CS/AN7 10 RD1/PSP1 20 RB5 38 RB6/PGC 39 RB7/PGD

17、 40 U2 PIC16F874A +5V R3 56R R4 56R C4 100nF X1 CRYSTAL FREQ=20MHz C5 22pF C6 22pF C7 10U 16V R5 100R C8 100nF R6 10K +5V VssVdd VoRS R/WE D0D1 D2D3 D4D5 D6D7 LED A LED K C9 100nF +5V SERVO RESET IR OUT C10 100nF +5V LED SERVO RESET To Servo Board LCD Connector 2 LCD Connector 1 From Servo Board (LC

18、D) +5V R9 220R C11 10U 16V RESET RESET +5V LCD C12 100nF ON/OFF BRIGHT BRIGHT ON/OFF Q1 BC337 R12 10K Q2 BC337 R13 10K Q3 BC337 Q4 BC337 R14 1K2 R15 10K H0 14 A1 6 GND 8 A0 7 W0 12 L1 3 L0 13 H1 1 W1 4 A2 5 SDA 10 SCL 9 VCC 16 U3 DS1803 +5V_SERVO +5V_SERVO 1 2 3 4 5 6 7 8 9 CN6 JST 2MM S9B-PH-KS 1 2

19、 3 4 5 6 7 8 CN7 JST 2MM S8B-PH-KS R18 10K R19 10K SEG15 16 SEG14 15 SEG13 14 SEG12 13 SEG11 12 SEG10 11 SEG9 10 SEG8 9 SEG7 8 SEG6 7 SEG5 6 SEG4 5 SEG3 4 SEG2 3 SEG1 2 SEG0 1 SEG16 17 SEG17 18 SEG18 19 COM1 20 COM2 21 COM3 22 COM4 23 NC 24 CN10 LCD 740C COM1 COM1 COM2 COM3 COM4 COM2 COM3 COM4 +5V R

20、20100R R21100R R22100R R23100R R24100R R25100R R26100R R27100R R28100R R29100R R30100R R31100R R32100R CLK SD TX SD RX CS INT RS E OSC1 OSC2 U7_SO1 U7_S02 U9_S01 SCL D4 D5 D6 D7 SDA SERIAL TX SERIAL RX SERVO RESET RESET OE1# MUTE IR OUT IR IN D1 LED 3MMBLUE C13 10U 16V C14 100nF 1 P1 PAD EMC M3 1 P2

21、 PAD EMC M3 1 P3 PAD EMC M3 C15 1nF C16 1nF C17 1nF R10 300R 13 2 R11 PRE MULTI 500R MCLR 4 GP4 3 CLKIN 2 Vss 8 GP0 7 GP1 6 GP2 5 Vdd 1 U4 PIC12C508 1 2 3 4 5 CN8 DATA 1 2 3 4 5 CN9 DATA R33680R R34680R D2 BZX79C5V1500MW D3 BZX79C5V1500MW MGND +5V_SERVO MGND FIN 1 GND1 2 RIN 3 GND2 5 VCC 6 OUT2 7 CO

22、M 8 OUT1 9 U5 BA6218 MGND +8V 1 2 3 4 5 6 1a 2a 3a 4a 5a 6a 7 8 7a 8a CN5 CONN-8HEAD DUALBOT D4 1N4004 D5 1N4004C18 10U16V C19 100nF +8V R35 100K LED 1 P4 PAD EMC M3 1 P5 PAD EMC M3 C20 1nF C21 1nF C22 100nF TO DAC BOARD CN8 (SPI) TO DAC BOARD CN9 (RS232/MUTE/SPDIF CNTRL) FROM SERVO BOARD DRAWER OPE

23、N/CLOSE (SPI) TO MECH DRAWER OPEN/CLOSE (SPI) R7 100R R8 10OR R16 R METAL 1/8W 4k7 1/8W Metal Film R17 R METAL 1/8W 4k7 1/8W Metal Film R36 R METAL 1/4W 220R 1/4W Metal Film R37 R METAL 1/4W 220R 1/4W Metal Film D6 1N4004 D7 1N4004 To enhance viewing, please print to A36 RadioFans.CN Cambridge Audio

24、 Azur 740C CD Player AP19135/3 Front Panel Board Layout (Top Side) To enhance viewing, please print to A37 RadioFans.CN Cambridge Audio Azur 740C CD Player AP19135/3 Front Panel Board Layout (Bottom Side) To enhance viewing, please print to A38 RadioFans.CN AP20712/5 AP Part no.ValueDescription/Type

25、Factory PNQtyComponent IdentNOTES 47R 0.25 W 1% Metal Film1R1 56R0.25 W 1% Metal Film2R3, R4 100R0.25 W 1% Metal Film16R5, R7, R8, R20-R32 220R0.25 W 1% Metal Film1012-201014E0004R2, R9, R36, R37 300R0.25 W 1% Metal Film1R10 680R0.125 W 1% Metal Film1016-801016E0202R33, R34 1K20.25 W 1% Metal Film1R

26、14 4K70.25 W 1% Metal Film2R16, R17 10k0.25 W 1% Metal Film6R6, R12, R13, R15,R18, R19 100K0.25 W 1% Metal Film1R35 PRE MULTI 500R Side adjust Footprint 9.5 x 4.5 mm VR B500 OHM +-10% WI 3296NOXOX-XA1- 013 1R11 Mount on bottom side of PCB with screw adjust facing upwards 22pFCeramic NPO, Pitch = 5.0

27、mm2C5, C6 1nFCeramic 50V Pitch = 5.0mm7C1, C2, C15-C17, C20,C21 100nFCeramic 50V Pitch = 5.0mm9C3, C4, C8-C10, C12, C14, C19, C22 10uFMiniature 16V Pitch 2.5mm Height 5.2mm4C7, C11, C13, C18 TSOP1836SS3VTSOP IR RECEIVER1U1 PIC16F877A-I/PPIC 1U2 Programme with AP20728/4, Please add version label PY98

28、3DS18030-050DIGITAL POT4118-030051E2001U3 PIC12C508A-I/PPIC1U4 Programme with AP20231/1, Please add version label PY260BA6218CD DRIVER IC1U5 PY214BC337NPN SMALL SIGNAL4Q1-Q4 LED BLUE1D1HFB963M-130 5V1 ZENERBZX79C5V11402-511201E2002D2, D3 1N4004GENERAL PURPOSE RECTIFIER4D4, D5, D6, D7 PY043TACT SWITC

29、HTACT SW 2P2T KPT-1105A (5MM)8SW1-SW8 20MHz CRYSTAL20MHz, HEIGHT ABOUT 3.5MMCL20PF HC-49US1X1+- 30PPM TRANSISTORS DIODES MISCELLANEOUS Cambridge Azur 740C Front Panel BOM RESISTORS CAPACITORS SEMICONDUCTORS Note: resistors, capacitors and other generic electronic components are not usually stocked b

30、y the manufacturer. Please obtain these locally. 9 RadioFans.CN Cambridge Audio Azur 740C CD Player AP20195/5 Servo Circuit Diagram SEG14 77 SEG15 76 SEG16 75 SEG17 74 SEG18 73 NC 72 NC 71 NC 70 NC 69 NC 68 NC 67 NC 66 NC 65 NC 64 NC 63 NC 62 NC 61 NC 60 NC 59 NC 58 NC 57 NC 56 NC 55 NC 54 NC 53 FL/

31、TL 52 VDD 51 SEG13 78 SEG12 79 SEG11 80 SEG10 81 SEG9 82 SEG8 83 SEG7 84 SEG6 85 SEG5 86 SEG4 87 SEG3 88 SEG2 89 SEG1 90 SEG0 91 COM3 92 COM2 93 COM1 94 COM0 95 VLC 96 NC 97 NC 98 NC 99 VDD 100 VSS 50 (BOOT) 49 VAREF 48 AD K1 47 AD K2 46 AD K3 45 PWR DET 44 NC 43 NC 42 OLT 41 CLT 40 SLT 39 D-OPEN 38

32、 D-CLOSE 37 BUS3 36 BUS2 35 BUS1 34 BUS0 33 BUCK 32 CEE 31 VSSS 1 XOUT 2 XIN 3 RESET 4 NC 5 NC 6 TEST 7 NC 8 REMOTE 9 MUTE 10 NC 11 NC 12 NC 13 SCK2 14 (SI2) 15 (SO2) 16 (WAIT) 17 NC 18 NC 19 NC 20 NC 21 NC 22 NC 23 NC 24 NC 25 NC 26 NC 27 NC 28 CORW 29 RES 30 U3 TOSHCDMCU 1 2 3 4 5 6 7 CN6 LCD 1 2

33、3 4 5 6 7 8 CN5 LCD 1 2 3 4 5 6 7 8 CN4 LCD R22 NC R21 22K +5V C83 470uF 16V C85 100uF 16V +5V +5VDD C84 220uF 16V Q13 9014C X2 CRYSTAL 7.3728MHz C81 25pF C80 25pF C79 100nF R19 3K3 R18 10K D9 1N4148 R20 1K 1 2 3 4 5 6 7 8 CN3 PROGRAMMING R65 10K R662K2 R1710K +5V R27 10K +5V +5VDD XVSS 77 VDD4 76 P

34、XO 75 PXI 74 VSS4 73 TESIO1 72 TESIN 71 DACT 70 CKSE 69 DMOUT 68 IO3 67 IO2 66 IO1 65 IO0 64 VSS3 63 VDD3 62 FLGD 61 FLGC 60 FLGB 59 FLGA 58 SEL 57 2VREF 56 DMO 55 TEBC2 54 TEBC1 53 TEBC0 52 RFGC 51 XI 78 XO 79 XVDD 80 DVSR 81 RO 82 DVDD 83 DVR 84 LO 85 DVSL 86 TEST1 87 TEST2 88 TEST3 89 BUS0 90 BUS

35、1 91 BUS2 92 BUS3 93 VDD 94 VSS 95 BUCK 96 CCE 97 TEST4 98 TSMOD 99 RST 100 VREF 50 TRO 49 FOO 48 TEZI 47 TEI 46 TSIN 45 SBAD 44 FEI 43 RFRP 42 RFZI 41 RFCT 40 AVDD1 39 RFI 38 SLCO 37 AVSS1 36 VCOF 35 VCOREF 34 PVREF 33 LPFO 32 LPFN 31 TEST0 1 HSO 2 UHSO 3 EMPH 4 LRCK 5 VSS1 6 BCK 7 AOUT 8 DOUT 9 MB

36、OV 10 IPF 11 SBOK 12 CLCK 13 VDD1 14 VSS2 15 DATA 16 SFSY 17 SBSY 18 SPCK 18 SPDA 20 COFS 21 MONIT 22 VDD2 23 TESIO0 24 P2VREF 25 HSSW 26 ZDET 27 PDO 28 TMAXS 29 TMAX 30 U2 TC9462F VCC 1 RFGC 2 GMAD 3 FNI 4 FPI 5 TNI 7 MDI 8 LDO 9 SEL 10 TEB 11 2VRO 12 TEN 13 TEO 14 SBAD 15 FEO 16 FEN 17 SEB 18 VRO

37、19 RFRP 20 BTC 21 RFCT 22 PKC 23 RFRPIN 24 RFGO 25 GVSW 26 AGCIN 27 RFO 28 GND 29 RFN2 30 TPI 6 U1 TA2153FN PW GND 1 OUT(-)1 2 PVCC1 3 OUT(+)1 4 VIN1 5 VRI 6 VCI 7 VIN2 8 OUT(+)2 9 PVCC2 10 OUT(-)2 11 PW GND 12 PW GND 13 OUT(-)3 14 PVCC3 15 OUT(+)3 16 VIN3 17 S GND 18 S VCC 19 VIN4 20 OUT(+)4 21 PVC

38、C4 22 OUT(-)4 23 PW GND 24 U6 TA2092N R1510K R39 10K R1410K R1310K R1210K +5V R1110K R6 220K R768K R515K R947K C8 0.015uF C76 47pF C7447uF 16V R810K C750.01uF C60.0027uF 1 2 3 CN1 DIGITAL OUT +5V R1047R C10 47uF 16V C9 47uF 16V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CN16 MECH 1 2 3 4 5 6 CN15 MOTOR

39、DRIVE +8V C56 220uF 16V C59100nF R64 10K +5V C58 100nF C57 100nF R42 3K3 C270.047uF C260.047uF R41 3K3 C60 0.047uF C61 100nF C1422uF 16V C2847uF 16V C312200pF nostuff C302200pF nostuff R3810K no stuff R3710K no stuff R4010R 1/4W NC NC NC NC NC R36 100K no stuff R35 100K no stuff X1 CRYSTAL 16.9344MH

40、z C1715pF C1615pF C15 0.047uF NC C1847uF 16V NC NC NC NC NC NC NC NC NC NC NC NC R43 10K R45 3K3 C24470pF C25470pF R44 3K3 C62 100nF R60 1K R59 82K L1 47uH C66 0.047uF C65 220uF 16V C20 47uF 16V C67 100nF C64100nF C68 22uF R58 0R R5610K R5510K R5410K R5310K R52 56K R51 47K R50 47K R49 47K R48 47K R5

41、7 56K L2 10uH Q1 9015 R62 15R C69100uF 16V R463K3 R473K3 C23 0.047uF C220.047uF R63 100K R1 2K2 C1 3pF R3 1K C73 100pF R2 10K R4220R C2100nF C720.22uF C30.22uF C4100nF R6127K C71100nF C7 0.01uF C5 0.047uF C77 47uF 16V C70 47uF 16V NC D8 1N4148 NC NC NC NC NC NC NC NC NC NC NC NC NC NC C121uF 16V R16

42、 10K 1 2 3 4 5 CN8 DRAW DRIVE R31 10K R30 10K +5V Q12 8050 Q7 8050 Q9 8550 Q10 8550 R33 470R R34 470R R67 14mm link(840c only) +8V R28 10K R29 10K +5V+5V NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C86 100nF L3 100uH R2610K R251K R2310K R2410K R32 4K7 REMOTE R

43、EMOTE LK1 LINK OPEN = F/L SHORT = T/L +5VCC NC NC NC NC NC NC NC NC NC NC NC NC NC NC 1 2 3 4 5 CN12 AUDIO OUT no stuff 1 2 3 4 5 CN2 DATA OUT EMPH BCK PCMD LRCK GND 1 2 CN17 XTALI OSC GND SET LCD CONTRAST +5V RESET BOOT GND WAIT SCK2 SI2 SO2 REMOTE +5V GND K1 K2 C21 0.0047uF OLT GND CLT OPEN CLOSE

44、GND ROUT LOUT MUTE1 MUTE +5V GND D-OUT FC- TR- TR+ FC+ PD VR LD GND F C B A D E VCC VC SLT- SLT+ FM+ FM- DM- DM+ SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 COM0 COM1 COM2 COM3 L4100uH L5 100uH C82 10uF 16V 1 2 CN18 XTALO GND C87 1nF 1 2 CN

45、20 MUTE 1 2 3 4 5 6 7 CN7 CONTROL KEYS D10 1N4148 D11 1N4148 R76 4K7 Q8 8050Q11 8050 PWR DET RESET J1 100R NOTE R? IS A REPLACEMENT FOR WIRE LINK ON BOARD AP12928/7 AND WILL NEED ASSIGNING A REFDES FUTURE R? IS 100 OHM 1% METAL FILM RESISTOR. PLACED BETWEEN C68 AND L2 FU1 T2AL VI 1 VO 3 GND 2 U8 780

46、5 C45 100nF C44 100nF C46 470uF 16V +5V 1 2 CN19 AC IN D5 IN4004 D4IN4004 D2 IN4004D3IN4004 C49 100nF C50 3300uF 25V C54 100nF VI 1 VO 3 GND 2 U7 7808 C48 100nF C53 100nF C51 100nF C52 100nF C47 470uF 16V +8V 14.5V AC 1 2 CN21 FP DIS NOFIT FOR740/840C C89 10N COG CER C90 10N COG CER C91 100N COG C11

47、 47N COG C19 100N COG C13 100N COG C96 10N COG C97 10N COG C92 100N COG R77 200RR78 200R 1 P1 CN PAD EMC M3 1 P2 CN PAD EMC M3 1 P3 CN PAD EMC M3 1 P4 CN PAD EMC M3 R91 200R R92 200R 1 2 3 CN22 HEADER 3WAY P1 C93 10N COG VCC 8 CLK 5 N/C 1 GND 4 X3 OSC DIL08 C94 C 100N 100V MCER 5V OSC OSC MOD OSC MO

48、D 5V OSC C98 100N COG C101 100N COG C102 220U 16V R93 47R LK2 LK7,5MM 24AWG 24 AWG LK3(NF) TOSIGNALGROUND LK4 TOLK4 To enhance viewing, please print to A310 RadioFans.CN Cambridge Audio Azur 740C CD Player AP20195/5 Servo Board Layout (Top Side) To enhance viewing, please print to A311 RadioFans.CN

49、Cambridge Audio Azur 740C CD Player AP20195/5 Servo Board Layout (Bottom Side) To enhance viewing, please print to A312 RadioFans.CN AP20713/2 AP Part No.ValueDescription/TypeQtyComponent IdentFactory PNNOTES 10R0.25 W Metal Film Resistor1R401011-000014-000 15R0.125 W Metal Film Resistor1R62 link14mm link1R67For 840C ONLY. Use link 47R0.12