Cambridge Audio Azur 540P Service Manual Download

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Cambridge Audio Azur 640P MM/MC Phono Stage

AP151197/1 Main PCB Schematic

1N4004

GND

7818

47n PE 63V

GND

7918

+18V

-18V

1N4004

3k3

C11

10U 25V

CN1

DCJACK2

U3:A

NE5532

C12

47n PE 63V

C13

47n PE 63V

+18V

-18V

3k9 1/8W

C14

4u7 PE 5%

C15

4u7 PE 5%

3k9 1/8W

U3:B

NE5532

R26

2k2 1/8W

U4:A

NE5532

C66

47n PE 63V

C27

47n PE 63V

R27

3k9 1/8W

C28

4u7 PE 5%

C29

4u7 PE 5%

R29

3k9 1/8W

U4:B

NE5532

R51

2k2 1/8W

SW1

SW-2POLE 2WAY

SW2

SW-2POLE 2WAY

Sub Filter

MC/MM

AC 12v 500mA

U5:A

NE5532

C40

47n PE 63V

C41

47n PE 63V

R52

1k3 1/8W

R53

1k3 1/8W

2SA970GR

R54

18R 1/8W

R55

15k 1/8W

R56

15k 1/8W

2SA970GR

R57

1k3 1/8W

R58

470R

+18V

R59

1k2

-18V

C44

220U NP 6.3V

R60

470R 1/8W

C46

220P PP 63V 5%

U6:A

NE5532

R61

910R 1/8W

2SA970GR

R62

91R 1/8W

R63

11k 1/8W

R64

11k 1/8W

2SA970GR

C49

220U NP 6.3V

R68

560k 1/8W

C51

220P PP 63V 5%

U5:B

NE5532

C52

47n PE 63V

C53

47n PE 63V

R69

1k3 1/8W

R70

1k3 1/8W

2SA970GR

R71

18R 1/8W

R72

15k 1/8W

R73

15k 1/8W

2SA970GR

R74

1k3 1/8W

C56

220U NP 6.3V

R77

470R 1/8W

C58

220P PP 63V 5%

U6:B

NE5532

2SA970GR

R79

91R 1/8W

R80

11k 1/8W

R81

11k 1/8W

2SA970GR

C61

220U NP 6.3V

R85

560k 1/8W

C63

220P PP 63V 5%

R86

2k2 1/8W

R87

2k2 1/8W

R88

2k2 1/8W

R89

2k2 1/8W

R47

47k 1/8W

R48

47k 1/8W

C25

100n PE 63V

C26

470n PE 63V

1N4004

CN2:A

ZUAN-AV2-8

CN2:B

ZUAN-AV2-8

CN3:A

ZUAN-AV2-8

CN3:B

ZUAN-AV2-8

C68

100n PE 63V

CN4:A

ZUAN-AV2-8

CN4:B

ZUAN-AV2-8

1
2

CN5

JST 2,5MM B2B-XH-A

Red Led Vf=2V

R94

3k 1/8W *2V

MM L

MC L

MM L

MC L

MM R

MC R

MM R

Q10

2SA970GR

Q11

2SA970GR

Q12

2SA970GR

Q13

2SA970GR

Q14

2SA970GR

Q15

2SA970GR

Q16

2SA970GR

Q17

2SA970GR

Q18

BC560C

D10

Red Led Vf=2V

R95

3k 1/8W *2V

BC560C

C54

10N PP 63V

C71

10N PP 63V

C72

10N PP 63V

C73

10N PP 63V

C76

10N PP 63V

C77

10N PP 63V

R65

1k3 1/8W

R66

470R

+18V

D11

Red Led Vf=2V

R100

3k 1/8W *2V

Q23

BC560C

R102

1k3 1/8W

D12

Red Led Vf=2V

R104

3k 1/8W *2V

Q25

BC560C

R67

1k2

-18V

R42

82R

R43

150R

sub

direct

C30

100n PE 63V

C75

22p NPO 50V

R15

130R 1/8W

R16

130R 1/8W

C88

470U NP 6.3V

C89

470U NP 6.3V

R17

51k 1/8W

C90

470U NP 6.3V

R18

51k 1/8W

C91

470U NP 6.3V

C92

47P NPO 50V

C93

47P NPO 50V

C98

33p NPO 50V

C99

33p NPO 50V

R36

910R 1/8W

R37

910R 1/8W

R38

910R 1/8W

R24

1k87 0.1%

C16

10N PP 63V

C45

10N PP 63V

-18V

C59

100n PE 63V

C60

100n PE 63V

C62

100n PE 63V

C67

100n PE 63V

C50

470n PE 63V

C70

470n PE 63V

C79

47n PE 63V

C80

47n PE 63V

R76

47k 1/8W

R78

47k 1/8W

C81

10N PP 63V 1%

C32

10N PP 63V 1%

C33

10N PP 63V 1%

C34

10N PP 63V 1%

1k87 0.1%

C17

10N PP 63V 1%

C18

10N PP 63V 1%

C19

10N PP 63V 1%

C20

10N PP 63V 1%

1K2 1/8W

R13

75K 0.1%

R19

1K 1/8W

C21

10N PP 63V 1%

C22

10N PP 63V 1%

C23

10N PP 63V 1%

C24

10N PP 63V 1%

R22

3.92k 0.1%

R45

1k87 0.1%

C35

22p NPO 50V

R84

1K2 1/8W

R90

1K2 1/8W

C36

10N PP 63V 1%

C37

10N PP 63V 1%

C38

10N PP 63V 1%

C39

10N PP 63V 1%

C69

10N PP 63V

C82

10N PP 63V

R20

1k87 0.1%

R10

75K 0.1%

R12

1K 1/8W

R14

3.92k 0.1%

47R 1/8W

R21

47R 1/8W

R23

47R 1/8W

1k6 1/8W

R28

1k6 1/8W

1N4004

R30

100R 1/8W

R31

15k 1/8W

1N4148

Q19

BC560C

R39

1k 1/8W

R40

220k 1/8W

R41

220k 1/8W

R44

51k 1/8W

Q20

MPSA14

RL1:A

RELAY

RL1:B

RELAY

RL1:C

RELAY

1N4004

R46

390R 2W Carbon

AC Sense

+18V

Unreg

C95

1u 50V

C31

47U NP 16V

C64

47U NP 16V

Av=147

Av=23

R49

No Stuff

R82

No Stuff

Q21

2SA970GR

Q22

2SA970GR

Q24

2SA970GR

Q26

2SA970GR

Q27

2SA970GR

Q28

2SA970GR

Q29

2SA970GR

Q30

2SA970GR

D13

1N4004

1000U 35V EL

C55

1000U 25V EL

AC Sense

100U 25V EL

C10

100U 25V EL

C57

470U 25V EL

C65

470U 25V EL

R11

100R

R25

100R

+18V

-18V

C83

470U 25V EL

C84

470U 25V EL

R50

100R

R75

100R

330U 50V EL 105D

R83

220k 1/8W

R91

220k 1/8W

LK1

LINK10MM

LK2

LINK10MM

LK3

LINK10MM

FB1

FERRITE BEAD

FB2

FERRITE BEAD

FB3

FERRITE BEAD

FB4

FERRITE BEAD

LK4

LINK10MM

LK5

LINK10MM

C42

1000U 25V EL

C43

1000U 25V EL

C47

1000U 25V EL

C48

1000U 25V EL

R32

180k
0805

R33

180k
0805

C94

100U 25V EL

86-756-8687998

To enhance viewing, please print to A3

Summary of Contents for Azur 540P

Page 1: ...umption 5W 5W 5W Gain 1kHz 39dB 39dB 55dB Input Impedance 47k 47k 100R Nominal Output 300mV 300mV 300mV Sensitivity for Nominal Output 3 35mV 3 35mV 0 5mV THD 20Hz 20kHz 0 009 0 005 0 002 RIAA Curve Accuracy 0 65dB 0 3dB 0 3dB 25Hz 20kHz 20hz 50kHz 20Hz 50kHz Subsonic filter off Signal to Noise Ratio 85db 86dB 72dB Using Audio Precision RIAA 1 with grounded inputs Crosstalk 20kHz 76dB 83dB 69dB Di...

Page 2: ...640P Main Assembly BOM 4 540P Main PCB Schematic 5 540P Main PCB Layout Top Side 6 540P Main PCB Layout Bottom Side 7 540P Main PCB BOM 8 9 640P Main PCB Schematic 10 640P Main PCB Layout Top Side 11 640P Main PCB Layout Bottom Side 12 640P Main PCB BOM 13 15 IC Pin Layout Details 16 2 ...

Page 3: ...s 5 Any unauthorised design alterations or additions will void the manufacturer s 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 confirmed that they have been returned to normal after re assembly Notes on chi...

Page 4: ...2191 300 PY912 EU PSU Unit 1 GPG411200500WA00 PY913 CU PSU Unit 1 GPU351200500WA00 PY868 Australia NZ PSU Unit 1 GPS411200500WA01 PY867 UK PSU Unit 1 GPB411200500WA00 4021 411200 107 Cambridge Audio Azur 540P 640P Phono Stage Main Assembly BOM Note resistors capacitors and other generic electronic components are not usually stocked by the manufacturer Please obtain these locally 4 ...

Page 5: ...100p NPO R22 47k C23 220p NPO MM R23 22R C24 100u 25V NP R24 22k G1 L L R C25 100n Ceramic C26 100n Ceramic MM phono input V PAD V PAD GND PAD D8 1N4004 R25 47R R26 3k9 G1 R27 1k2 R28 220R G1 R29 7k5 C28 4 7u PEST 5 C29 4 7u PEST 5 3 2 1 8 4 U4 A NE5532 R30 1k2 R31 3k9 C30 39n PEST 5 R32 82k R33 1k8 G1 C31 82n PEST 5 G1 R34 820R R35 22R C32 100u 25V NP R36 22k G1 R R37 47R R38 3k9 G1 R39 1k2 R40 2...

Page 6: ...Cambridge Audio Azur 540P Phono Stage AP15219 4 Main PCB Layout Top Side AP15220 4 Superior Performance Moving Magnet Phono Module To enhance viewing please print to A3 6 ...

Page 7: ...Cambridge Audio Azur 540P Phono Stage AP15219 4 Main PCB Layout Bottom Side To enhance viewing please print to A3 7 ...

Page 8: ...2 CAPACITORS 100p NPO Ceramic 5mm Pitch 2 C18 C22 220p NPO Ceramic 5mm Pitch 2 C19 C23 4 7n NPO Ceramic 5mm Pitch 2 C39 C40 39n 5 Polyester Film 5mm Pitch 2 C14 C30 CMEA393J063RB050 Mini Box metallised polyester 39n 63V 5 7 3x2 5mm 5mm pitch 47n 10 Polyester Film 5mm Pitch 8 C7 C8 C34 C35 C36 C37 C41 C42 82n 5 Polyester Film 5mm Pitch 2 C15 C31 CMEA823J063RB050 Mini Box metallised polyester 82n 63...

Page 9: ...8 18 volt 1A TO220 Positive Voltage regulator 1 U1 To be mounted on AP15814 1 heatsink shield 7918 18 volt 1A TO220 Negative voltage regulator 1 U2 To be mounted on AP15814 1 heatsink shield PY259 NE5532 8 pin DIL Audio OpAmp 2 U3 U4 4155 320052 100 TRANSISTORS 2SA970 TO92 PNP Very low noise transistor 4 Q1 Q2 Q3 Q4 1301 970000 100 DIODES 1N4004 Rectifier Diodes 5 D2 D3 D4 D6 D8 SEMICONDUCTORS Not...

Page 10: ...d Vf 2V R100 3k 1 8W 2V Q23 BC560C R102 1k3 1 8W A K D12 Red Led Vf 2V R104 3k 1 8W 2V Q25 BC560C R67 1k2 18V R42 82R R43 150R sub direct C30 100n PE 63V C75 22p NPO 50V R15 130R 1 8W R16 130R 1 8W C88 470U NP 6 3V C89 470U NP 6 3V R17 51k 1 8W C90 470U NP 6 3V R18 51k 1 8W C91 470U NP 6 3V C92 47P NPO 50V C93 47P NPO 50V C98 33p NPO 50V C99 33p NPO 50V R36 910R 1 8W R37 910R 1 8W R38 910R 1 8W R2...

Page 11: ...dio Azur 640P MM MC Phono Stage AP151199 1 Main PCB Layout Top Side AP15120 6 Ultimate Performance Universal Phono Module Power LED MM Input Output 12V 0 5A MC Input 18V 18V To enhance viewing please print to A3 11 ...

Page 12: ...Cambridge Audio Azur 640P MM MC Phono Stage AP151199 1 Main PCB Layout Bottom Side To enhance viewing please print to A3 12 ...

Page 13: ...1 R43 470R 0 25W metal film 1 2 R58 66 1K2 0 25W metal film 1 2 R59 67 3K3 0 25W metal film 1 1 R1 1K87 0 25W metal film 0 10 4 R7 20 27 45 3 92K 0 25W metal film 0 10 2 R14 22 75K 0 25W metal film 0 10 2 R10 13 180k 0805 Thick Film 1 2 R32 33 270R 2W Carbon Film 10 1 R46 22pF 50V NP0 Ceramic 5 1181 220042 000 2 C35 75 33pF 50V NP0 Ceramic 5 2 C98 99 47pF 50V NP0 Ceramic 5 1181 470042 000 2 C92 93...

Page 14: ...unt on AP15814 1 heatsink with TO220 Silipad and Insulating Bush NE5532 Audio OpAmp 4155 320052 900 4 U3 4 5 6 2SA970GR PNP Very low noise 1301 970000 100 24 Q1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 17 21 22 24 26 27 28 29 30 Top of transistor must not be higher than 8 5mm from PCB BC560C PNP Low noise 5 Q9 18 19 23 25 Top of transistor must not be higher than 8 5mm from PCB MPSA14 NPN Darlington 1 Q...

Page 15: ...rrite Bead on 24AWG 1503 000000 100 4 FB1 2 3 4 24AWG Tinned Copper Link Wire 5 LK1 2 3 4 5 10mm LINK PY584 ME2 5S Relay 4050 000005 002 1 RL 1 2 pole 2 way switch 2 SW1 2 SS004P022YPF8 MISCELLANEOUS Note resistors capacitors and other generic electronic components are not usually stocked by the manufacturer Please obtain these locally 15 ...

Page 16: ...540P 640P IC Pin Layout Details Main PCB 540P 640P 7818 U1 540P 640P 7918 U2 540P NE5532 U3 U4 640P NE5532 U3 U4 U5 U6 540P 2SA970GR Q1 2 3 4 640P 2SA970GR Q1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 17 21 22 24 26 27 28 29 30 16 ...

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Cambridge Audio Azur 540P, Service Manual

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