Cambridge-640Av2-int-sm 电路图 维修手册.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 640A V2.0 Issue Date: 22nd March 2006 SERVICE MANUAL SPECIFICATIONS: Power Output 75W (into 8?) 120W (into 4?) THD (unweighted) 0.002% 1kHz, of rated power 0.050% 20Hz 20kHz, of rated power 90dB Input impe

2、dances 47kohms Power Amp damping factor 100 Max power consumption 700w Min/On power consumption 35w (no signal) Standby power consumption 10w Bass / Treble controls shelving, ultimate boost/cut + /-7.5dB 20Hz and 20kHz Dimensions 100 x 430 x 310mm (3.9 x 16.9 x 12.2”) Weight 7.4kg (16.3Lbs) AP19855/

3、1 RadioFans.CN 收音机爱 好者资料库 640A V2.0 SERVICE MANUAL TABLE OF CONTENTS Safety Precautions 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 le

4、ads and it should be confirmed 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 COPYRIGHT NOTICE. 2005 Audio Partnership PLC

5、. All rights reserved. Cambridge Audio and Azur are registered trademarks for Audio Partnership PLC. This document 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 t

6、rademark, copyright, or other notice from this content is prohibited. Information provided in this document is provided solely for the use of official service agents in repairing and servicing Audio Partnership PLC products. 3 RadioFans.CN 收音机爱 好者资料库 21 17 25 10 18 (a) 8 19 (b) 2022 16 12 23 6 14 31

7、2 4 24 5 15119 13 7 Drawing ref AP PartFactory part numberDescription 1PY6876560-150001-000AVOLUME KNOB ALUMINIUM SKIN AP133601 SILVER (use with PY680+PY681) 1PY6866560-150001-000VOLUME KNOB ALUMINIUM SKIN AP133601 BLACK (use with PY680+PY681) 2PY5926050-150004-002-02Azur-640A SELECTOR KNOB SILVER 2

8、PY5936050-150004-002-01Azur-640A SELECTOR KNOB BLACK 3PY7196050-150012-000-017MM TAC SWITCH BUTTON (BLACK) 3PY7206050-150012-000A017MM TAC SWITCH BUTTON (SILVER) 46050-150013-000A017MM PUSH SWITCH BUTTON SILVER FOR Azur-640A 46050-150013-0007MM PUSH SWITCH BUTTON BLACK FOR Azur-640A 56050-117821-000

9、-02Azur-640A CONTROL BOXBUTTON SILVER 56050-117821-000-01Azur-640A CONTROL BOXBUTTON BLACK 6PY5416050-150010-000A01PLASTIC FOOT SILVER 6PY5316050-150010-000PLASTIC FOOT BLACK 7PY5446600-170100-000FOOT PAD FOR AZUR RANGE 8PY10313200-076781E000Transformer 115/230V 32.5V*232.5*2/2A 17V*2/0.4A Azur-640A

10、 V2 9PY10326550-150017-001-02LARGER SIDE PANEL SILVER PAINTED 9PY10336550-150017-001-01LARGER SIDE PANEL BLACK PAINTED 10PY10346550-150037-000-02V2 AMP TOP PANEL SILVER PAINTED 10PY10356550-150037-000-01V2 AMP TOP PANEL BLACK PAINTED 11PY10368554-015010-701LARGER SUPPORT FRONT ASSY (WITH TWO BRASS I

11、NSERTS) 12PY10378554-015020-701LARGER SUPPORT REAR ASSY (WITH TWO BRASS INSERTS) 13PY10388564-015002-301Azur-640A V2-SILVER AMP FRONT PANEL ASSY 13PY10398564-015002-302Azur-640A V2-BLACK AMP FRONT PANEL ASSY 14PY10409464-015002-041Azur-640A/540A V2 PIC CONTROL BOARD ASSY REV A 15PY10419464-015002-17

12、1Azur-640A/540A V2 POWER SWITCH PCB REV A PY10429464-015002-191Azur-640A/540A V2 LED PCB ASSY REV A 16PY10439464-015002-071Azur-640A V2 POWER INPUT BOARD ASSY REV A 17PY10449464-015002-091Azur-640A V2 AMP POWER PCB ASSY REV A 18PY10459464-015002-001640A/540A V2 PROTECTION CIRCUITRY PCB-A ASSY REV A

13、19PY10469464-015002-101640A/540A V2 PROTECTION CIRCUITRY PCB-B ASSY REV A 20PY10479464-015002-331Azur-640A/540A A-Bus hub PCB ASSY REV A 21PY10489464-015002-341Azur-640A/540A V2 INPUT PCB ASSY REV A 22PY10499464-015002-541Azur-540A/640A V2 SPEAKER CONN. BOARD ASSY REV A 23PY9449805-054010-001AZUR-54

14、0A/C,640A/C V2.0 REMOTE CONTROL ASSY REV A PY9456040-150002-000-01BATTERY-DOOR FOR Azur R/C BLACK PAINTED 24PY10576550-150021E001A04AZUR 640A V2.0 FRONT PANEL-Silver (Metal only) 24PY10556550-150021E001-04AZUR 640A V2.0 FRONT PANEL-Black (Metal only) 25PY5157002-608010-001Screw M2.6 x 8 M/C Torx Rec

15、essed 1/K Head Black 25PY5167002-608010-006Screw M2.6 x 8 M/C Torx Recessed 1/K Head En-Plated PY10515100-641500E300AZUR 540A/640A V2 USERS MANUAL (AP183031) To enhance viewing, please print to A34 5 6 7 Cambridge Audio Azur 640A V2.0 Amplifier AP17649/5 Input PCB Schematic (Headphone Driver) Main +

16、15V -15V R54 10R R53 10R 6 5 7 U1:B NE5532N R8 1R R6 1R R41 2k7 R40 3k3 R43 560R R42 560R R39 5k6 R7 5k6 Q6 BD139 Q5 BD139 Q4 BD140 R9 180R Main RSW1 RSW2 R L GND 2 3 1 7 8 CN1 HEADPHONE JACK Main C96 47N 63V PE C95 47N 63V PE 2 3 1 84 U1:A NE5532N R3 1R R1 1R R46 2k7 R45 3k3 R48 560R R47 560R R44 5

17、k6 R2 5k6 Q3 BD139 Q2 BD139 Q1 BD140 R4 180R Main GENERAL NOTES 1. 2. 3. 4. 5. R11 10R 2W R12 10R 2W RCh HP Out R52 100R R51 No Stuff Main LCh HP Out R49 100R R50 No Stuff Main C97 470U 25V EL C94 470U 25V EL R5 360R R10 360R C2 10N 63V PE C1 10N 63V PE Main LK2 LINK10MM LK1 LINK10MM LK3 LINK10MM LK

18、4 LINK10MM 1 2 CN2 2,5MM 2W ST HEADER R118 1k5 R119 3k R120 1k5 R121 3k Main Main ? ? ? ? To enhance viewing, please print to A39 Cambridge Audio Azur 640A V2.0 Amplifier AP17649/4 Input PCB Board Layout (Top Side) Super Hi-Fidelity Ultra Linear Preamp Stage To enhance viewing, please print to A310

19、Cambridge Audio Azur 640A V2.0 Amplifier AP17649/4 Input PCB Board Layout (Bottom Side) To enhance viewing, please print to A311 AP17652/5 AP Part No ValueDescription/TypeFactory Part No.QtyComponent IdentNotes RESISTORS 1R0.25W metal film4R1, 3, 6, 8. 2R70.25W metal film1R65 See Input Schematic (Pr

20、otection Circuitry) 10R0.25W metal film2R53, 54 22R0.25W metal film2R33, 34 100R0.25W metal film5R49, 52, 67, 98, 99. 180R0.25W metal film2R4, 9 360R0.25W metal film2R5, 10 560R0.25W metal film6R42, 43, 47, 48,106,107 910R0.25W metal film1R63 1K0.25W metal film2R66,(R123)See Input Schematic (Tone Co

21、ntrol) 1K10.25W metal film4R23-26 1K50.25W metal film4R27, 32, (118,120) See Input Schematic (Headphone Driver) 1K80.25W metal film6R58, 59, 102-105. 2K20.25W metal film8R17-19, 21, 35-38 2K70.25W metal film2R41, 46 3K0.25W metal film4R28, 30, R119, (R121) See Input Schematic (Headphone Driver) 3K30

22、.25W metal film2R40, 45 3K60.25W metal film2R60, 61 4K70.25W metal film8R20, 22, 55, 56, 69, 71, 114, 117 5K60.25W metal film4R2, 7, 39, 44 10K0.25W metal film5R64, 70, 115, 116,(122)See Input Schematic (Tone Control) 22K0.25W metal film2R29, 31 100K0.25W metal film1R68 150K0.25W metal film4R13-16 4

23、70K0.25W metal film2R100, 101 1k0.125W metal film12 R72, 78, 80, 82, 84, 86, 88, 90, 92, 94, 97, 109. See Input Schematic (Buffers and Switches) 220R0.125W metal film6R74-77, 111, 112. 47K0.125W metal film12 R73, 79, 81, 83, 85, 87, 89, 91, 93, 95, 96, 110, 10R2W Carbon2R11,12 See Input Schematic (H

24、eadphone Driver) 220R2W Carbon2R57, 108 CAPACITORS 10pF 50VNP0 Ceramic1181-100042-0008C8, 13, 18, 23, 90, 93, 99, 106. 100pF 50VNP0 Ceramic1181-101042-00018 C46, 48, 50, 53, 54, 57, 58, 61, 62, 65, 66, 77-80, 83, 84, 85 1nF 50VCeramic1100-102043-0001C87 100nF 50VCeramic1100-104043-0006C25, 27, 43, 8

25、8, 89, 108 100nF 100VMonolythic Ceramic1106-104064-0013C35, 36, 37. 1.5nF 63VPolyester film2C19, 20 10nF 63VPolyester film1117-103052-0002C1, 2 47nF 63VPolyester film1117-473053-00030 C9, 10, 14, 16,29-31, 34, 39, 40, 41, 42, 44, 45, 67-76, 91,92,95, 96, 102, 103 680nF 63VPolyester film2C21, 22 10nF

26、 63VPolypropylene film6C3, 6, 12, 24, 100, 105 10uF 16V Non Polarised Electrolytic 1105-100013-00014 C47, 49, 51, 52, 55, 56, 59, 60, 63, 64, 81, 82, 101, 104 47uF 16V Non Polarised Electrolytic 4C4, 5, 7, 11, 1uF 25VPolarised Electrolytic1102-107024-0001C38 47uF 16VPolarised Electrolytic1102-470014

27、-0001C26 100uF 16VPolarised Electrolytic1102-101014-0001C107. 100uF 25VPolarised Electrolytic1102-101024-0002C15, 17 Cambridge Audio Azur 640A V2.0 Amplifier Input PCB Assembly BOM Note: resistors, capacitors and other generic electronics components are not usually stocked by the manufacturer. Pleas

28、e obtain these locally. 12 AP17652/5 AP Part No ValueDescription/TypeFactory Part No.QtyComponent IdentNotes Cambridge Audio Azur 640A V2.0 Amplifier Input PCB Assembly BOM 100uF 25V 105 degree Polarised Electrolytic 2C28, 98. 470uF 25VPolarised Electrolytic2C94, 97 1000uF 35VPolarised Electrolytic1

29、102-102034-0002C32, 33 BD140PNP Low power2Q1, 4 Q1 and Q2 must be thermally coupled and Q4 and Q5 must be thermally coupled, please see misc section for parts BD139NPN Low power4Q2, 3, 5, 6, Q1 and Q2 must be thermally coupled and Q4 and Q5 must be thermally coupled, please see misc section for part

30、s PY219BC327-25PNP Signal1301-327000-1001Q7 PY214BC337-25NPN Signal1300-337000-1001Q8 NPN Darlington1300-140000-1001Q9See Input Schematic (Tone Control) DIODES PY3191N4004Rectifier1401-140040-0009D1-6,(D8, D9, D10) See Input Schematic (Power Supply & Tone Control) PY7591N4148Signal1401-141480-0001D7

31、 PY108NE5532N4155-320052-90013U1, 5-7, 9, 10, 12-18 L7915CV1U2 L78051U3 L7815CV1U4 PY539LM3934139-300052-6001U8 PY476TC9163AF4191-630103-0001U11 POTS PY101320kA Motorised Dual Volume Pot 1062-003511E1101VR3High Torque MN20kDual Balance Pot1062-003518E1601VR4High Torque 5kBDual Linear Pot1062-002518E

32、1302VR1, 2High Torque SWITCH PY0452P2T Push Switch2402-020200-0102SW1, 2 LINK10mm 24SWG Tinned Copper Wire 70 LK1-4, 13, 22, 23, 26, 28-31, 44, 47, 63, 64, 66, 67, 70, 71, 74, 75, 78, 79, 82, 83, 86, 88, 98, 14-16,24, 25, 27, 38-40, 45, 46, 54, 55, 57, 58, 61, 62, 65, 68, 69, 72, 73, 76, 77, 80, 81,

33、 84, 85, 87, 92-95, 97, 101- 103,(104,105,106,107) See Input Schematic (Power Supply & Tone Control) LINK15mm 24SWG Tinned Copper Wire 39 LK5, 8, 9, 18-21, 33, 37, 43, 49, 51, 53, 56, 89-91, 99, 100, 6, 7, 10-12, 17, 32, 34-36, 41, 42, 48, 50, 52, 59, 60, 96,(108,109) See Input Schematic (Tone Contr

34、ol) PY5845V Relay4050-000005-0021RL1See Input Schematic (Tone Control) INTEGRATED CIRCUITS MISCELLANEOUS TRANSISTORS Note: resistors, capacitors and other generic electronics components are not usually stocked by the manufacturer. Please obtain these locally. 13 Cambridge Audio Azur 640A V2.0 Amplif

35、ier AP17977/2 Voltage Select Switch PCB Schematic J2 FROM J4 (Common) SW1 VOLTSELECT RF1002B 115/230V Marking J1 BROWN (230V) J3 BLACK (115V) To enhance viewing, please print to A314 Cambridge Audio Azur 640A V2.0 Amplifier AP17977/2 Voltage Select Switch PCB Layout (Top Side) To enhance viewing, pl

36、ease print to A315 Cambridge Audio Azur 640A V2.0 Amplifier AP17977/2 Voltage Select Switch PCB Layout (Bottom Side) To enhance viewing, please print to A316 Cambridge Audio Azur 640A V2 Voltage Selector PCB Assembly BOMAP17980/1 ValueDescription/TypeQtyComponent IdentFactory Part NumberNotes CONNEC

37、TORS RF1002BVoltage Selector1SW12406-010200-000 Note: resistors, capacitors and other electronic components are not usually stocked by the manufacturer. Please obtain these locally. 17 Cambridge Audio Azur 640A V2.0 Amplifier AP17657/1 Mains PCB Schematic earth 3 4 5 RL1:B RELAY 6 7 8 RL1:C RELAY FU

38、5 20MM T6.3AL Mains Toroid TRANSFORMER J1 TERMINAL J2 TERMINAL J3 TERMINAL J4 TERMINAL J5 TERMINAL J6 TERMINAL J7 TERMINAL J13 BLUE/WHITE J15 TO VOLT SELECT L N E CN3 IEC-SOC 1 2 RL1:A RELAY R2 1k R1 10k 1 2 3 CN2 H3 2.54mm D1 1N4004 Q3 MPSA14 C3 47N X1 C2 1N X1/Y1 CCDE102MB C1 1N X1/Y1 CCDE102MB 1

39、2 3 CN1 3,96MM 3W ST HEADER J8 EMC Chassis Connection 3 4 5 RL2:B RELAY 6 7 8 RL2:C RELAY J18 TERMINAL J19 TERMINAL J20 TERMINAL J21 TERMINAL Secondary 1 Secondary 2 (640A only) Mains Toroid TRANSFORMER Low Power secondary High Power Secondaries Power Amp supplies 1 2RL2:A RELAY D11 1N4004 R24 1k R2

40、5 10k Q4 MPSA14 640A only F1 POLYFUSE 1-1A F2 POLYFUSE 1-1A LK11 LK15MM LK10 LK10MM LK9 LK15MM J11 Switch J12 Switch To enhance viewing, please print to A318 Cambridge Audio Azur 640A V2.0 Amplifier AP17657/1 Front Panel PCB Schematic Temp MCLR Chassis CRS1 FREQ=4MHz 1 2 CN4 H2 2.54mm 90 MOTOR C4 10

41、0n FIN 1 GND1 2 RIN 3 NC 4 GND2 5 VCC 6 OUT2 7 COM 8 OUT1 9 U1 BA6218 +5V DGND R17 10k R21 10k R16 10k +5V DGND DGND C7 100n R19 10k D 2 CLK 3 STB 1 OE 15 Q0 4 Q1 5 Q2 6 Q3 7 Q4 14 Q5 13 Q6 12 Q7 11 QS 9 QS 10 VDD 16 VSS 8 U3 74HC4094 R20 220R +5V C9 100n D2 CHANNEL LED D3 CHANNEL LED D4 CHANNEL LED

42、 D5 CHANNEL LED D6 CHANNEL LED D7 CHANNEL LED SW7 STANDBY SW6 CD SW1 TUNER SW2 AV SW5 PHONO/AUX SW3 TAPE MON SW4 DVD +5V 3 OPT 1 GND 2 U4 IR REC 3/5V 36KHZ R18 10k +5V C11 100nF 50V X7R +5V DGND R7 220R LED Strobe Data Clock Clock Data LED Strobe vol up vol down vol up vol down R6 10k R12 220R LK6 L

43、INK10MM C5 100n 1 2 3 4 5 6 7 8 CN6 H8 2.54mm 90 DGND +5V LK5 LINK10MM R8 10k D8 Blue flat top LED Standby DGND 1 2 3 4 5 6 CN5 2,5MM 6W 90 HEADER 1 2 3 4 5 6 CN8 2,5MM 6W 90 HEADER DGND Q2 BC337 R4 10k R23 220R DGND R5 220R SNAP OFF SECTION (c) R1022R R1122R R922R Speaker A Relay VI/Short Standby R

44、elay Clip DC 1 2 3 4 5 6 7 CN7 2,5MM 7W 90 HEADER I2C Clock I2C Data I2C Switch Strobe DGnd CA Control Bus IR ABUS IR ABUS Status 1 2 CN10 2,5MM 2W 90 HEADER HP Detect DGnd SNAP OFF SECTION (d) DGND DGND RC6 17 RC5/SDO 16 RC4/SDI/SDA 15 RC3/SCK/SCL 14 RC2/CCP1 13 RC1/T1OSI 12 RC0/T1OSO/T1CKI 11 OSC2

45、/CLKO 10 RA0/AN0 2 RA2/AN2 4 MCLR/Vpp 1 RA1/AN1 3 RA3/AN3/Vref 5 RB1 22 RB7/PGD 28 RA4T0CKi 6 RA5/AN4/SS 7 Vss2 8 OSC1/CLKI 9 RB2 23 RB3 24 RB6/PGC 27 RB4 25 RB5 26 VSS 19 RC7 18 VDD 20 RB0/INT 21 U2 PIC16F72I/SP R13 10k DGND J14 TERMINAL C8 10N 50V NP0 1 2 3 4 5 6 CN9 2,5MM 6W 90 HEADER DGND +5V +5

46、V LK1 LINK10MM MCLR LK7 LINK10MM DGND Clock Data Switch Strobe Switch Strobe ABUS IR ABUS IR ABUS Status ABUS Status IR In +5V IR In IR In DGND LK4 LINK10MM R1547R C10 no stuff LK3 LINK10MM C12 10U 16V EL R14 47R D9 LED 3MM RED protection R3 2R2 J9 TERMINAL (1) J10 TERMINAL J16 TERMINAL (1) J17 TERM

47、INAL C6 220U 16V EL Q1 BC337 R22 10k R26 10k DGND LK2 LK7,5MM LK8 LK15MM To enhance viewing, please print to A319 Cambridge Audio Azur 640A V2.0 Amplifier AP17657/1 Front Panel & Mains PCB Layout (Top Side) To enhance viewing, please print to A320 Cambridge Audio Azur 640A V2.0 Amplifier AP17657/1 F

48、ront Panel & Mains PCB Layout (Bottom Side) To enhance viewing, please print to A321 AP17660/1 AP Part No. ValueDescriptionFactory Part No.QtyComponent IdentNotes RESISTORS 220R0.25W metal film5R5, 7, 12, 20, 23 10K0.25W metal film 540A 12 640A 13 R1, 4, 6, 8, 13, 16-19, 21, 22, 25, 26 22R0.25W meta

49、l film3R9-11 47R0.25W metal film2R14, 15 2R20.25W metal film1R3 1K0.25W metal film 540A 1 640A 2 R2, 24 CAPACITORS 100nF50V Ceramic1100-104044-0005C4, 5, 7, 9, 11 47nFMains Rated X11C3Mains Suppression 1nFMains Rated X1/Y12C1, 2Mains Suppression 10nF50V Ceramic1100-104043-0001C8 10uF16V Electrolytic1102-100014-0001C12 220uF16V Electrolytic1102-221014-0001C6 TRANSISTORS MPSA14 NPN Darlington Transistor 130