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Cambridge Audio Azur 640P, Service Manual

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Cambridge Audio Azur 640P Service Manual Download Page 2

 

 

540P & 640P SERVICE MANUAL 

 
 

TABLE OF CONTENTS 

 
 

 

Safety Precautions & Important Notes 

 

 

 

 

 

3 

 

540P/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

Summary of Contents for Azur 640P

Page 1: ...mption 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 Ac...

Page 2: ...40P 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 6...

Page 3: ...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 the...

Page 4: ...191 300 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 Az...

Page 5: ...00p 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 C...

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: ...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...

Page 9: ...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 NE55...

Page 10: ...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...

Page 11: ...io 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 p...

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: ...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 1...

Page 14: ...nt 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...

Page 15: ...rite 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 N...

Page 16: ...40P 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 2...

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