640A Cambridge Audio Front Page · 2018. 3. 4. · 12 py1037 8554-015020-701 larger support rear assy (with two brass inserts) 13 py1059 8554-015001-302 azur-540a v2-silver amp front

Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233

540A V2 Issue Date: 31st March 2006 _________________________________________________________________________________________

SERVICE MANUAL

_________________________________________________________________________________________ SPECIFICATIONS: Power Output 60W (into 8Ω) 90W (into 4Ω)

THD (unweighted) <0.002% @ 1kHz, of rated power <0.070% 20Hz – 20kHz, of rated power <0.025% 20Hz – 20kHz @ 10w

Frequency response (-1dB) 5Hz – 50kHz

S/N ratio (ref 1w) >85dB

Input impedances 47kohms

Power Amp damping factor >100 Max power consumption 650w 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)

AP19973/1

1

540A V2.0 SERVICE MANUAL

TABLE OF CONTENTS

Safety Precautions & Important Notes 3

Exploded Diagram 4

Input PCB Schematic (Power Supply) 5

Input PCB Schematic (Buffers and Switches) 6

Input PCB Schematic (Tone Control) 7

Input PCB Schematic (Protection Circuitry) 8

Input PCB Schematic (Headphone Driver) 9

Input PCB Layout (Top Side) 10

Input PCB Layout (Bottom Side) 11

Input PCB Assembly BOM 12-13

Voltage Select Switch PCB Schematic 14 Voltage Select PCB Layout (Top Side) 15 Voltage Select PCB Layout (Bottom Side) 16 Voltage Select PCB Assembly BOM 17 Mains PCB Schematic 18 Front Panel PCB Schematic 19 Mains & Front Panel PCB Layout (Top Side) 20 Mains & Front Panel PCB Layout (Bottom Side) 21 Mains & Front Panel PCB Assembly BOM 22 Amp PCB Schematic (Right Channel) 23 Amp PCB Schematic (Protection) 24 Amp PCB Schematic (Power Amp) 25 Amp PCB Schematic (Left Channel) 26 Amp PCB Layout (Top Side) 27 Amp PCB Layout (Bottom Side) 28 Amp PCB Assembly BOM 29-31 Abus Module PCB Schematic 32 Abus Module PCB Layout (Top Side) 33 Abus Module PCB Layout (Bottom Side) 34 Abus PCB Assembly BOM 35 IC Pin Layout Details 36-42

2

SAFETY PRECAUTIONS & IMPORTANT NOTES

1. Check that the rear of the product indicates the correct supply voltage for your area.

2. The lighting flash with the arrowhead within an equilateral triangle is intended to alert the user or service agent to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock

to persons.

3. The exclamation point within an equilateral triangle is intended to alert the user or service agent to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the appliance.

4. This product complies with EEC Low Voltage (73/23/EEC) and Electromagnetic Compatibility (89/336/EEC) Directives when used and serviced in accordance with this manual. For continued compliance all components marked safety and EMC critical must only be replaced by Cambridge Audio approved parts. 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 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. 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 trademark, 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

21

17

25

10

18 (a)

8

19 (b)

20 22

16

12

23

6

14

31 2

4

24 5

15 11 9

13

7

Drawing ref AP Part Factory part number Description1 PY687 6560-150001-000A VOLUME KNOB ALUMINIUM SKIN AP133601 SILVER (use with PY680+PY681)1 PY686 6560-150001-000 VOLUME KNOB ALUMINIUM SKIN AP133601 BLACK (use with PY680+PY681)2 PY592 6050-150004-002-02 Azur-640A SELECTOR KNOB SILVER 2 PY593 6050-150004-002-01 Azur-640A SELECTOR KNOB BLACK3 PY719 6050-150012-000-01 7MM TAC SWITCH BUTTON (BLACK)3 PY720 6050-150012-000A01 7MM TAC SWITCH BUTTON (SILVER)4 6050-150013-000A01 7MM PUSH SWITCH BUTTON SILVER FOR Azur-640A4 6050-150013-000 7MM PUSH SWITCH BUTTON BLACK FOR Azur-640A5 6050-117821-000-02 Azur-640A CONTROL BOX BUTTON SILVER 5 6050-117821-000-01 Azur-640A CONTROL BOX BUTTON BLACK6 PY541 6050-150010-000A01 PLASTIC FOOT SILVER6 PY531 6050-150010-000 PLASTIC FOOT BLACK7 PY544 6600-170100-000 FOOT PAD FOR AZUR RANGE8 PY1058 3200-076771E000 115/230V 30V*2/3A 17V*2/0.4A Azur-540A V2 AP1757049 PY1032 6550-150017-001-02 LARGER SIDE PANEL SILVER PAINTED9 PY1033 6550-150017-001-01 LARGER SIDE PANEL BLACK PAINTED

10 PY1034 6550-150037-000-02 V2 AMP TOP PANEL SILVER PAINTED10 PY1035 6550-150037-000-01 V2 AMP TOP PANEL BLACK PAINTED11 PY1036 8554-015010-701 LARGER SUPPORT FRONT ASSY (WITH TWO BRASS INSERTS)12 PY1037 8554-015020-701 LARGER SUPPORT REAR ASSY (WITH TWO BRASS INSERTS)13 PY1059 8554-015001-302 Azur-540A V2-Silver AMP FRONT PANEL ASSY13 PY1060 8554-015011-302 Azur-540A V2-Black AMP FRONT PANEL ASSY14 PY1040 9464-015002-041 Azur-640A/540A V2 PIC CONTROL BOARD ASSY REV A15 PY1041 9464-015002-171 Azur-640A/540A V2 POWER SWITCH PCB REV A

PY1042 9464-015002-191 Azur-640A/540A V2 LED PCB ASSY REV A16 PY1061 9454-015002-071 Azur-540A V2 POWER INPUT BOARD ASSY REV A17 PY1062 9454-015002-091 Azur-540A V2 AMP POWER PCB ASSY REV A18 PY1045 9464-015002-001 640A/540A V2 PROTECTION CIRCUITRY PCB-A ASSY REV A19 PY1046 9464-015002-101 640A/540A V2 PROTECTION CIRCUITRY PCB-B ASSY REV A20 PY1047 9464-015002-331 Azur-640A/540A A-Bus hub PCB ASSY REV A21 PY1048 9464-015002-341 Azur-640A/540A V2 INPUT PCB ASSY REV A22 PY1049 9464-015002-541 Azur-540A/640A V2 SPEAKER CONN. BOARD ASSY REV A23 PY944 9805-054010-001 AZUR-540A/C,640A/C V2.0 REMOTE CONTROL ASSY REV A

PY945 6040-150002-000-01 BATTERY-DOOR FOR Azur R/C BLACK PAINTED 24 PY1056 6550-150021E001A03 AZUR 540A V2.0 FRONT PANEL-Silver (Metal only)24 PY1054 6550-150021E001-03 AZUR 540A V2.0 FRONT PANEL-Black (Metal only)25 PY515 7002-608010-001 Screw M2.6 x 8 M/C Torx Recessed 1/K Head Black25 PY516 7002-608010-006 Screw M2.6 x 8 M/C Torx Recessed 1/K Head En-Plated

PY1051 5100-641500E300 AZUR 540A/640A V2 USER'S MANUAL (AP183031)

To enhance viewing, please print to A3 4

Cambridge Audio Azur 540A V2.0 Amplifier

AP17649/5 Input PCB Schematic (Power Supply)

VI1

VO3

GN

D2

U3 L7805

C2647u 16V

VI1

VO3

GN

D2

U4L7815

VI2

VO3

GN

D1

U2L7915

+5V

DGND

D2

1N4004

D3

1N4004

D4

1N4004

D5

1N4004

C35100N 100V X7R

C37100N 100V X7R

C27100N 50V X7R

C25100N 50V X7R

C3147N PE 63V

C3447N PE 63V

C3047N PE 63V

C2947N PE 63V

C28100U 25V EL 105

C98100U 25V EL 105

GENERAL NOTES

1.2.3.4.5.

123

CN8

3,96MM 3W ST HEADER

C36

100N 100V X7R

Unreg for RelaysLK40LK10MM

Main

+15

V-1

5V

LK86LINK10MM

LK83LINK10MM

LK79LINK10MM

LK75LINK10MM

LK71LINK10MM

LK63LINK10MM

LK67LINK10MM -1

5V-15V

LK82LINK10MM

LK78LINK10MM

LK74LINK10MM

LK70LINK10MM

LK64LINK10MM

LK66LINK10MM +

15V

+15

V

LK88LINK10MM

LK47LINK10MM

LK44LINK10MM

LK41LINK15MM

LK42LINK15MM

+15

V

+15

V

-15V-1

5V

LK13LINK10MM

LK6LINK15MM

LK7LINK15MM

LK12LINK15MM

LK17LINK15MM

LK23LINK10MM

LK26LINK10MM

LK28LINK10MM

LK22LINK10MM

LK29LINK10MM

LK30LINK10MM

LK32LINK15MM

LK31LINK10MM

LK34LINK15MM

C321000U 35V EL

C331000U 35V EL

LK50LINK15MM

LK48LINK15MM

AC Sense

R554k7

C381U 25V

D1

1N4004

R56

4k7

Q7BC327

R1144k7

+5V

PIC Standby Relay

Standby Relay

Main

LK98LINK10MM

J7

TERMINAL

Main Main

Rev2: D8 Removed, LK105 and 106 added.

LK105LK10MM

LK106LK10MM

D91N4004

D101N4004

Rev4: D9 and D10 added.

C381U 25V

R56

4k7

Q7BC327

R1144k7

+5V

PIC Standby Relay

Standby Relay

LK105LK10MM

LK106LK10MM

D8

1N4148

Revision 1

86-756-8687998



AP17649/5 Input PCB Schematic (Buffer and Switches)

Abus GND

GENERAL NOTES

1.2.3.4.5.

2

31

84

U9:ANE5532N

R112 220R 1/8W

R111 220R 1/8W

6

57

U9:BNE5532N

2

31

84

U12:ANE5532N

6

57

U12:BNE5532N

-15V

+15V

+15V

-15V

+15V

-15V

U6

U6

SW GND

LCh In

RCh InLCh Out

RCh Out

LR

Vss1

L-S12

L-S23

L-S34

L-COM15

L-S46

L-S57

L-S68

L-COM29

L-S710

L-S811

L-COM312

ST13

GND14

Vdd28

R-S127

R-S226

R-S325

R-COM124

R-S423

R-S522

R-S621

R-COM220

R-S719

R-S818

R-COM317

DATA16

CLK15

U11

TC9163AF

6

CN14:DAV4-8,4-9

3

CN13:BAV4-8,4-9

6

CN13:DAV4-8,4-9

Aux C

D

DA

B

DV

D

MD

TO1

TO2

TM PO

3

CN12:BAV4-8,4-9

6

CN12:DAV4-8,4-9

3

CN15:BAV4-8,4-9

PreOut Left

PreOut Right

PreOut Left

PreO

ut R

ight

6

CN15:DAV4-8,4-9

12

CN16:AAV2-8,4-9

SW GND

3

CN16:BAV2-8,4-9

231

84

U14:ANE5532N

-15V

+15V

C67

47n 63V PEC68

47n 63V PE

R96

47k 1/8W

231

84

U13:ANE5532N

R93

47k 1/8W

231

84

U15:ANE5532N

-15V

+15V

C71

47n 63V PE

C72

47n 63V PE

R89

47k 1/8W

231

84

U16:ANE5532N

R85

47k 1/8W

231

84

U17:ANE5532N

-15V +15V

C76

47n 63V PE

C75

47n 63V PE

R81

47k 1/8W

231

84

U18:ANE5532N

R73

47k 1/8W

657

U13:BNE5532N

-15V+15V

C70

47n 63V PE

C69

47n 63V PE

R91

47k 1/8W

657

U14:BNE5532N

R95

47k 1/8W65

7

U16:BNE5532N

-15V

C74

47n 63V PE

C73

47n 63V PE

R83

47k 1/8W

657

U15:BNE5532N

R87

47k 1/8W

657

U18:BNE5532N

-15V+15V

C4447n 63V PE

C45

47n 63V PE

R110

47k 1/8W

657

U17:BNE5532N

R79

47k 1/8W

C91

47N PE 63V

C92 47N PE 63V

C41

47N 63V PE

C42

47N 63V PE

R1041k8

R105

1k8

R1031k8

R102

1k8

C90

10P 50V NPO

C93

10P 50V NPO

R99100R

R98100R

C88

100N 50V X7R

C89

100N 50V X7R

R1091k 1/8W

R781k 1/8W

R821k 1/8W

R861k 1/8W

R901k 1/8W

R941k 1/8W

R971k 1/8W

R921k 1/8W

R881k 1/8W

R841k 1/8W R80

1k 1/8W

R721k 1/8WC83

100p 50V NP0C48

100p 50V NP0C53

100p 50V NP0C57

100p 50V NP0C61

100p 50V NP0C65

100p 50V NP0C66

100p 50V NP0C62

100p 50V NP0C58

100p 50V NP0 C54100p 50V NP0C50

100p 50V NP0C46

100p 50V NP0

R75220R 1/8W

R76220R 1/8W

R74220R 1/8W

R77220R 1/8W

3

CN14:BAV4-8,4-9

12

CN14:AAV4-8,4-9

45

CN14:C

AV4-8,4-9

12

CN13:A

AV4-8,4-9

45

CN13:CAV4-8,4-9

12

CN12:AAV4-8,4-9

45

CN12:C

AV4-8,4-9

12

CN15:A

AV4-8,4-9

45

CN15:CAV4-8,4-9

LK60LINK15MMLK51

LK15MM

+15V

C6410U NP 16V

C6310U NP 16V

C6010U NP 16V

C5910U NP 16V

C5610U NP 16V

C5510U NP 16V

C52

10U NP 16VC51

10U NP 16V

C4910U NP 16V

C47

10U NP 16V

C8110U NP 16V

C82

10U NP 16V

LK62 LK10MM

LK57LK10MM

LK56LK15MM

LK53LK15MM

LK55 LK10MM

LK54LK10MM

LK92LK10MM

LK90LK15MM

LK91LK15MM

LK9LK15MM

LK8LK15MM

U6

U6

LK89LK15MM

LK99LK15MM

LK97 LK10MMLK93

LK10MM

LK94LK10MM

R100470k

R101470k

LK95LK10MM

LK96LINK15MM

LCh HP Out

RCh HP OutLK5 LK15MM

LK43 LK15MM

123

CN102,5MM 3W ST HEADER

ABUS Audio Out

R106

560R

R107560R

1234567

CN5

2,5MM 7W ST HEADERTo PIC

ClockData

StrobeDGnd from PIC

Control Bus IRABUS IRAmp Mute

Control Bus IR

ABUS IRABUS Status

RChGNDLCh

12345

CN9

2,5MM 5W ST HEADERABUS Control Signals

ABUS PCB DGnd

LK101LK10MM

C87

1N 50V NP0

J1

TERMINAL

R113

47R no stuff

C86

1N 50V NP0 no stuff

J2

TERMINAL

C80

100p 50V NP0

C78

100p 50V NP0

U6

U6 C77

100p 50V NP0

C79

100p 50V NP0U6

U6

C85100P 50V NP0

C84100P 50V NP0

231

84

U10:ANE5532N

-15V

+15V

C4047n 63V PE

C3947n 63V PE

U6 U6

657

U10:B

NE5532N

U6

U6

U6

LK49LK15MM

LK52LINK15MM

LK58LK10MM

LK61LK10MM

LK59LINK15MM

ABUS PCB +5V +5VOLTS

LK100LK15MM

LK85LK10MM

LK87LK10MMLK68

LK10MMLK69LK10MM

LK73LK10MM

LK77LK10MM

LK81LK10MM

LK84LK10MM

LK80LK10MM

LK76LK10MM

LK72LK10MM

LK65LK10MM

R58 1k8

R59 1k8

J4

TERMINAL

J5

TERMINAL

J6

TERMINAL

J8

TERMINAL

R613k6

U6

R603k6

U6

U6

Rev1: Resistors R72,78,80,82,84,86,88,90,92,94,97,109 changed to 75R

GND Links on underside

Amp Mute

Standby Relay

Rev4: Resistors R72,78,80,82,84,86,88,90,92,94,97,109 changed to 1k

86-756-8687998



AP17649/5 Input PCB Schematic (Tone Control)

GENERAL NOTES

1.2.3.4.5.

R204k7

R231k1R24

1k1

R172k2

R192k2

SW2:A

SW-DPDTTone Defeat Out

-15V

+15V

R36

2k2

R35

2k2

R224k7

R261k1R25

1k1

R182k2

R212k2

SW2:B

SW-DPDTTone Defeat

-15V

+15V

R37

2k2

R38

2k2

U2

out

Out

-15V

+15V

U2

U4

U4

Out

Out

U2

+15V

-15V

2

31

84

U6:ANE5532N

6

57

U6:B

NE5532N

2

31

84

U5:ANE5532N

6

57

U5:B

NE5532N

U2 6

57

U7:B

NE5532N

2

31

84

U7:ANE5532N

RCh In

LCh In

RCh Out

LCh Out

U2

U4

U4

R15150k

R14150k

R16150k

R13150k

46

5

VR3:B20K MOTORISED DUAL POT

13

2

VR3:A20K MOTORISED DUAL POT

46

5

VR4:BMN20K BALANCE

13

2

VR4:AMN20K BALANCE

13

2

VR2:AB5K LINEAR

46

5

VR2:BB5K LINEAR

132

VR1:AB5K LINEAR

46

5VR1:BB5K LINEAR

123456

CN3

H6 2.54mmTO POWER AMP

C5

47U NP 16V

C11

47U NP 16V

C4

47U NP 16V

C7 47U NP 16V

RCh Out

LCh Out

C10347N 63V PE

C102

47N 63V PE

C14

47N 63V PE

C16

47N 63V PE

C9

47N 63V PE

C10

47N 63V PE

C18

10P 50V NPO

C23

10P 50V NPO

C8

10P 50V NPO

C13

10P 50V NPO

C191N5 63V PE

C201N5 63V PE

C22

680N 63V PE

C21

680N 63V PE

LK37LK15MM

U4

LK25LK10MM

LK24LK10MM

LK21LK15MM

LK19LK15MM

R33

22R

R34

22R

LK35LINK15MM

LK20LK15MM

LK27LK10MM

LK18

LK15MM

R2922k

R3122k

Out

Out

C6

10N PP 63V

C12

10N PP 63V

C3

10N PP 63V

C24 10N PP 63V

C104

10U NP 16V

C101

10U NP 16V

C105

10N PP 63V

C100

10N PP 63V

LK36LINK15MM

R32

1k5

R303k

Out

R27

1k5

R283k

Out

C106

10P 50V NPO

C99

10P 50V NPO

C15100U 25V EL

C17100U 25V EL

LK33LK15MM

J3

TERMINAL

12

CN17

2MM 2W ST HEADER

34

5

RL1:B

ME2-5S

67

8

RL1:C

ME2-5S

1

2

RL1:A

ME2-5S

+5VOLTS

D81N4004

Q9MPSA14

R12210k

R123

1k

MAIN

Amp Mute

Rev2: RL1,D8,Q9,R122,R123,LK104,107-109 added.

LK16LK10MM

LK104LK10MM

LK107LK10MM

LK108LK15MM

LK109LK15MM

86-756-8687998



AP17649/5 Input PCB Schematic (Protection Circuitry)

+5Volts

R661kFor 1mA

R6410k

R67100R

R652R7

DGND

3

21

84

U8:ALM393 D7

1N4148

+5V

Speaker short circuit tester

R694k7(Open Collector Output)

Senses a DC resistance of 2 ohms or less

D61N4004

PIC VI/Short

C43

100N 50V X7R

Speaker Test

DG

ND +5V

SW1:B

SW-DPDTTAPE

SPEAKER B SWITCHING (for relay)

Speaker TestSpeaker A Relay

Unreg for Relays

123456

CN11

2,5MM 6W ST HEADER

To Speaker PCB CN1

PIC Standby Relay

Unreg for Relays

DGND

123

CN7

2,5MM 3W ST HEADER

R57

220R 2W Carbon

R108

220R 2W Carbon

PIC VI/Short

PIC DCPIC CLIP

PIC Temp

Speaker A Relay

PIC Standby Relay

12345678

CN6

2,5MM 8W ST HEADERTo PIC

GENERAL NOTES

1.2.3.4.5.

Mains PCB Control

Speaker PCB Control

PIC Protection signals

Speaker Cable Short Circuit Detector

LK103LK10MM

LK14LK10MM

LK15LK10MM

5

67

U8:BLM393

LK102

LK10LINK15MM

LK46

LK11LINK15MM

LK45LK10MM

12345

CN4

2,5MM 5W ST HEADER

DG

ND

PIC VI/Short

PIC DC

PIC CLIP

Temp Sense

R11610k

R11510k

DGND

+5V

PIC Temp

R63910R910 / (910 + 10k) with ZP221A501Evoltage gives 100deg C cutout

+5Volts

Tem

p Se

nse

R714k7

R7010k R117

4k7Open Collector Output

Q8BC337 LK39

LK10MM

LK38

R68

100k

R62

no stuff

C108100N 50V X7R

C107100U 16V EL

DGND

+5V

Rev3: R65 Changed from 10R to 8R2Rev4: R65 Changed from 8R2 to 4R7Rev5: R65 Changed from 4R7 to 2R7

86-756-8687998



AP17649/5 Input PCB Schematic (Headphone Driver)

Main

+15V

-15V

R54

10R

R53

10R

6

57

U1:B

NE5532N

R81R

R61R

R412k7

R403k3

R43

560R

R42

560R

R395k6

R7

5k6

Q6BD139

Q5BD139

Q4BD140

R9180R

Main

RSW1

RSW2

R

L

GND

2

3

1

7

8CN1

HEADPHONE JACK

MainC96

47N 63V PE

C9547N 63V PE

2

31

84

U1:A

NE5532N

R31R

R11R

R462k7

R453k3

R48

560R

R47

560R

R445k6

R2

5k6

Q3BD139

Q2BD139

Q1BD140

R4180R

Main

GENERAL NOTES

1.2.3.4.5.

R11

10R 2W

R12

10R 2W

RCh HP OutR52

100R

R51No Stuff

Main

LCh HP OutR49

100R

R50No Stuff

Main

C97

470U 25V EL

C94470U 25V EL

R5360R

R10360R

C210N 63V PE

C110N 63V PE

Main

LK2LINK10MM

LK1LINK10MM

LK3LINK10MM

LK4LINK10MM

12

CN2

2,5MM 2W ST HEADER

R1181k5

R1193k

R1201k5

R1213k

Main

Main

Rev1: Resistors R118-121 added

(Rch Out)

(Lch Out)

Rev2: Resistors R11,R12,R118-121 values changed.

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AP17649/4 Input PCB Board Layout (Top Side)

Super Hi-Fidelity Ultra Linear Preamp Stage

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AP17649/4 Input PCB Board Layout (Bottom Side)

86-756-8687998


AP17652/5AP Part

NoValue Description/Type Factory Part No. Qty Component Ident Notes

RESISTORS1R 0.25W metal film 4 R1, 3, 6, 8.

2R7 0.25W metal film 1 R65See Input Schematic (Protection Circuitry)

10R 0.25W metal film 2 R53, 5422R 0.25W metal film 2 R33, 34100R 0.25W metal film 5 R49, 52, 67, 98, 99.180R 0.25W metal film 2 R4, 9360R 0.25W metal film 2 R5, 10560R 0.25W metal film 6 R42, 43, 47, 48,106,107910R 0.25W metal film 1 R631K 0.25W metal film 2 R66,(R123) See Input Schematic (Tone Control)1K1 0.25W metal film 4 R23-26

1K5 0.25W metal film 4 R27, 32, (118,120)See Input Schematic (Headphone Driver)

1K8 0.25W metal film 6 R58, 59, 102-105.2K2 0.25W metal film 8 R17-19, 21, 35-382K7 0.25W metal film 2 R41, 46

3K 0.25W metal film 4 R28, 30, R119, (R121)See Input Schematic (Headphone Driver)

3K3 0.25W metal film 2 R40, 453K6 0.25W metal film 2 R60, 614K7 0.25W metal film 8 R20, 22, 55, 56, 69, 71, 114, 1175K6 0.25W metal film 4 R2, 7, 39, 4410K 0.25W metal film 5 R64, 70, 115, 116,(122) See Input Schematic (Tone Control)22K 0.25W metal film 2 R29, 31100K 0.25W metal film 1 R68150K 0.25W metal film 4 R13-16470K 0.25W metal film 2 R100, 101

1k 0.125W metal film 12R72, 78, 80, 82, 84, 86, 88, 90, 92, 94, 97, 109.

See Input Schematic (Buffers and Switches)

220R 0.125W metal film 6 R74-77, 111, 112.

47K 0.125W metal film 12R73, 79, 81, 83, 85, 87, 89, 91, 93, 95, 96, 110,

10R 2W Carbon 2 R11,12See Input Schematic (Headphone Driver)

220R 2W Carbon 2 R57, 108CAPACITORS10pF 50V NP0 Ceramic 1181-100042-000 8 C8, 13, 18, 23, 90, 93, 99, 106.

100pF 50V NP0 Ceramic 1181-101042-000 18C46, 48, 50, 53, 54, 57, 58, 61, 62, 65, 66, 77-80, 83, 84, 85

1nF 50V Ceramic 1100-102043-000 1 C87 100nF 50V Ceramic 1100-104043-000 6 C25, 27, 43, 88, 89, 108100nF 100V Monolythic Ceramic 1106-104064-001 3 C35, 36, 37.1.5nF 63V Polyester film 2 C19, 2010nF 63V Polyester film 1117-103052-000 2 C1, 2

47nF 63V Polyester film 1117-473053-000 30C9, 10, 14, 16,29-31, 34, 39, 40, 41, 42, 44, 45, 67-76, 91,92,95, 96, 102, 103

680nF 63V Polyester film 2 C21, 2210nF 63V Polypropylene film 6 C3, 6, 12, 24, 100, 105

10uF 16VNon Polarised Electrolytic

1105-100013-000 14C47, 49, 51, 52, 55, 56, 59, 60, 63, 64, 81, 82, 101, 104

47uF 16VNon Polarised Electrolytic

4 C4, 5, 7, 11,

1uF 25V Polarised Electrolytic 1102-107024-000 1 C3847uF 16V Polarised Electrolytic 1102-470014-000 1 C26100uF 16V Polarised Electrolytic 1102-101014-000 1 C107.100uF 25V Polarised Electrolytic 1102-101024-000 2 C15, 17

Cambridge Audio Azur 540A V2.0 Amplifier Input PCB Assembly BOM

Note: resistors, capacitors and other 'generic' electronics components are not usually stocked by the manufacturer. Please obtain these locally. 12

AP17652/5AP Part

NoValue Description/Type Factory Part No. Qty Component Ident Notes

Cambridge Audio Azur 540A V2.0 Amplifier Input PCB Assembly BOM

100uF 25V105 degree Polarised Electrolytic

2 C28, 98.

470uF 25V Polarised Electrolytic 2 C94, 971000uF 35V Polarised Electrolytic 1102-102034-000 2 C32, 33

BD140 PNP Low power 2 Q1, 4

Q1 and Q2 must be thermally coupled and Q4 and Q5 must be thermally coupled, please see misc section for parts

BD139 NPN Low power 4 Q2, 3, 5, 6,

Q1 and Q2 must be thermally coupled and Q4 and Q5 must be thermally coupled, please see misc section for parts

PY219 BC327-25 PNP Signal 1301-327000-100 1 Q7PY214 BC337-25 NPN Signal 1300-337000-100 1 Q8

NPN Darlington 1300-140000-100 1 Q9 See Input Schematic (Tone Control)DIODES

PY319 1N4004 Rectifier 1401-140040-000 9 D1-6,(D8, D9, D10)See Input Schematic (Power Supply & Tone Control)

PY759 1N4148 Signal 1401-141480-000 1 D7

PY108 NE5532N 4155-320052-900 13 U1, 5-7, 9, 10, 12-18L7915CV 1 U2L7805 1 U3L7815CV 1 U4

PY539 LM393 4139-300052-600 1 U8PY476 TC9163AF 4191-630103-000 1 U11

POTS

PY1013 20kAMotorised Dual Volume Pot

1062-003511E110 1 VR3 High Torque

MN20k Dual Balance Pot 1062-003518E160 1 VR4 High Torque5kB Dual Linear Pot 1062-002518E130 2 VR1, 2 High TorqueSWITCH

PY045 2P2T Push Switch 2402-020200-010 2 SW1, 2

LINK10mm24SWG 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, 84, 85, 87, 92-95, 97, 101-103,(104,105,106,107)

See Input Schematic (Power Supply & Tone Control)

LINK15mm24SWG 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 Control)

PY584 5V Relay 4050-000005-002 1 RL1 See 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


AP17977/2 Voltage Select Switch PCB Schematic

J2

FROM J4 (Common)

SW1

VOLTSELECT RF1002B115/230V Marking

J1

BROWN (230V)

J3

BLACK (115V)

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AP17977/2 Voltage Select Switch PCB Layout (Top Side)

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AP17977/2 Voltage Select Switch PCB Layout (Bottom Side)

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Cambridge Audio Azur 540A V2 Voltage Selector PCB Assembly BOM AP17980/1

Value Description/Type Qty Component Ident Factory Part Number Notes

CONNECTORSRF1002B Voltage Selector 1 SW1 2406-010200-000

Note: resistors, capacitors and 'other' electronic components are not usually stocked by the manufacturer. Please obtain these locally.

17


AP17657/1 Mains PCB Schematic

earth3

4

5 RL1:B

RELAY

67

8 RL1:C

RELAY

FU5

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:ARELAY

R2

1k

R110k

123

CN2

H3 2.54mm

D11N4004

Q3MPSA14

C347N X1

C21N X1/Y1CCDE102MB

C11N X1/Y1CCDE102MB

123

CN1

3,96MM 3W ST HEADERJ8

EMCChassis Connection

34

5 RL2:B

RELAY

67

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 SecondariesPower Amp supplies

1

2RL2:A

RELAY

D111N4004

R24

1k

R2510k

Q4MPSA14

640A only

F1

POLYFUSE 1-1A

F2

POLYFUSE 1-1A

LK11LK15MM

LK10LK10MM

LK9LK15MM

J11Switch

J12Switch

86-756-8687998



AP17657/1 Front Panel PCB Schematic

Temp

MCLR

ChassisCRS1

FREQ=4MHz

12

CN4

H2 2.54mm 90MOTOR

C4100n

FIN1

GND12

RIN3

NC4

GND25

VCC6

OUT27

COM8

OUT19

U1

BA6218

+5V

DGND

R1710k

R2110k

R1610k

+5V

DGND

DGND

C7100n

R19

10k

D2

CLK3

STB1

OE15

Q04

Q15

Q26

Q37

Q414

Q513

Q612

Q711

QS9

QS10

VD

D16

VSS

8U3

74HC4094

R20220R

+5V

C9

100n

D2CHANNEL LED

D3CHANNEL LED

D4CHANNEL LED

D5CHANNEL LED

D6CHANNEL LED

D7CHANNEL LED

SW7STANDBY

SW6

CD

SW1

TUNER

SW2

AV

SW5

PHONO/AUX

SW3

TAPE MON

SW4

DVD

+5V3

OPT1

GND2

U4

IR REC 3/5V 36KHZ

R1810k

+5V

C11100nF 50V X7R

+5V

DGND

R7220R

LED Strobe

DataClock

ClockData

LED Strobe

vol up

vol down

vol upvol down

R610k

R12220R

LK6LINK10MM

C5100n

12345678

CN6

H8 2.54mm 90

DGND

+5V

LK5LINK10MM

R810k

D8Blue flat top LEDStandby

DGND

123456

CN5

2,5MM 6W 90 HEADER

123456

CN8

2,5MM 6W 90 HEADER

DGND

Q2BC337

R4

10k

R23220R

DGND

R5

220R

SNAP OFF SECTION (c)R10 22R

R11 22R

R9 22R

Speaker A Relay

VI/ShortStandby Relay

ClipDC

1234567

CN7

2,5MM 7W 90 HEADER

I2C ClockI2C Data

I2C Switch StrobeDGnd

CA Control Bus IRABUS IRABUS Status

12

CN102,5MM 2W 90 HEADER

HP DetectDGnd

SNAP OFF SECTION (d)

DGND

DGND

RC617

RC5/SDO16

RC4/SDI/SDA15

RC3/SCK/SCL14

RC2/CCP113

RC1/T1OSI12

RC0/T1OSO/T1CKI11

OSC2/CLKO10

RA0/AN02

RA2/AN24

MCLR/Vpp1

RA1/AN13

RA3/AN3/Vref5

RB122

RB7/PGD28

RA4T0CKi6

RA5/AN4/SS7

Vss28

OSC1/CLKI9

RB223

RB324

RB6/PGC27

RB425

RB526

VSS19

RC718

VDD20

RB0/INT21

U2

PIC16F72I/SP

R13

10k

DGND

J14

TERMINALC810N 50V NP0

1 2 3 4 5 6

CN92,5MM 6W 90 HEADER

DGND

+5V

+5V

LK1LINK10MM

MCLR

LK7LINK10MM

DGND

Clock

Data

Switch Strobe

Switch Strobe

ABUS IR

ABUS IRABUS Status

ABUS Status

IR In

+5V

IR In

IR In

DGND

LK4LINK10MM

R15 47R

C10

no stuff

LK3LINK10MM

C1210U 16V EL

R1447R

D9LED 3MM REDprotection

R32R2

J9

TERMINAL(1)

J10

TERMINAL

J16TERMINAL

(1) J17TERMINAL

C6220U 16V EL

Q1BC337

R2210k

R2610k

DGND

LK2LK7,5MM

LK8LK15MM

86-756-8687998



AP17657/1 Front Panel & Mains PCB Layout (Top Side)

86-756-8687998



AP17657/1 Front Panel & Mains PCB Layout (Bottom Side)

86-756-8687998


AP17660/1AP Part

No.Value Description Factory Part No. Qty Component Ident Notes

RESISTORS220R 0.25W metal film 5 R5, 7, 12, 20, 23

10K 0.25W metal film540A 12 640A 13

R1, 4, 6, 8, 13, 16-19, 21, 22, 25, 26

22R 0.25W metal film 3 R9-1147R 0.25W metal film 2 R14, 152R2 0.25W metal film 1 R3

1K 0.25W metal film540A 1 640A 2

R2, 24

CAPACITORS

100nF 50V Ceramic 1100-104044-000 5 C4, 5, 7, 9, 11

47nF Mains Rated X1 1 C3 Mains Suppression1nF Mains Rated X1/Y1 2 C1, 2 Mains Suppression

10nF 50V Ceramic 1100-104043-000 1 C8

10uF 16V Electrolytic 1102-100014-000 1 C12

220uF 16V Electrolytic 1102-221014-000 1 C6

TRANSISTORS

MPSA14NPN Darlington Transistor

1300-140000-100540A 1 640A 2

Q3, Q4 540A fit Q4 only

PY214 BC337-25 NPN Transistor 1300-337000-100 2 Q1, 2

DIODES

PY064 Blue LED 3100-000030-003 7 D2-8

Red LED 3100-000000-003 1 D9

PY319 1N4004 Rectifier Diode 540A 1 640A 2

D1, 11 540A fit D11 only

INTEGRATED CIRCUITS

PY635 PIC16F721/SP Flash PIC micro 4116-720054-200 1 U2

U2 must be programmed with AP18951/1 software (file name: 640AV2.hex) Request from UK Office

PY260 BA6218 Motor Drive IC 4162-180002-300 1 U1

PY524 M74HC4094 Shift Register 4174-409052-600 1 U3

PY054 3/5V 36KHZ IR Receiver 3001-183600-001 1 U4

RELAY

PY594 8A-250VAC 2P2T 4050-110122-001540A 1 640A 2

RL1, RL2 540A fit RL2 only

SWITCHES

PY043 Tact Switch 2400-020200-000 7 SW1-7

MISCELLANEOUS

4MHz Ceramic Resonator 1602-400002-990 1 CRS1

20MM T6.3AL 1 FU51.1A Polyfuse 2 F1,2

Cambridge Audio Azur 540A Front Panel and Mains PCB Assembly BOM

Note: resistors, capacirors and other 'generic' components are not usally stocked by the manufacturer. Please obtain these locally. 22


AP17653/2 Amp PCB Schematic (Right Channel)

56

CN7:C

SPKR 4-WAY

R AMP

12

CN4

H2 2.54mmSIGNAL IN

D191N4004

D201N4004

+45V R

-45V R

R66

4R7 3WWW

R70

100R

R60

100R

R46150R 8th R73 2k2 8th

R AMP

R51150R 8th

R55100R

R53100R

R58

10k

R56470R 8th

R INPUT

D11**2k7 1/8W Res

R4322k

R111470R 8th

R110470R 8th

R5210k 8th

R54

47R 8th

R69100k 8th

R39270R 8th

R780.22R 3W

R650.22R 3W

RE1

RE2

R38100k 8th

R47100k 8th

67

8

RL2:C

12V 8A RELAY

SPEAKER TEST

R AMP

J9

TERMINAL

J11TERMINAL

J12TERMINAL

R AMP

R AMP

12

CN7:A

SPKR 4-WAY

E

S

CB

D

5

1

3

2

4

U3SAP15PY

E

S

CB

D

5

4

3

1

2

U4SAP15NY

R4847k

R AMP

R AMP

R6810R 8th

C3547n poly

R45470R 8th

R INPUT

+45V. R

-45V. R

RO

34

5 RL1:B

12V 8A RELAY

C34

47U 16V NP

C33

10N 63V PP

Q29MPSA92

R5722k 8th

C3610N 63V PP

Q28MPSA92

2

CW

3C

CW

1

PR2PRESET 200R 3296W

R50

1k 8th

C31

10P 50V NP0

C37100U 25V NP

C32100P 50V NP0

Q232SC2240GR

Q242SC2240GR

C5047U 16V NP

C491N 50V NPO

R4918R 8th

Q27MJE350

Q19

MPSA42

Q20MPSA42

Q17MPSA42

Q18MPSA42

R401k 8th

R4147k 8th

R AMP

C39100U 63V EL

C2810U 63V ELC29

47N 63V PE

R AMP

C4010U 63V EL

C3847N 63V PE

R AMP

Q322SC2240GRR76 10R 8th

C30100U 63V EL

R AMP

R61 2k2 8th

Q162SA970GR

R37 10R 8th

Q222SA970GR

Q212SA970GR

R104

15R 0,5W Carbon

L2

1,2UH AIRCOIL

C53220U 63V EL

C61220U 63V EL

Q262SC2240GR

C59100N 100V MCER

LK40LINK20MM

LK27LINK20MM

LK41LINK20MM

LK39LK8MM

LK38LK8MM

LK37LK8MM

LK36LK8MM

LK35LK8MM

LK33LK8MM

LK32LK8MM

LK31LK8MM

LK28LK8MM

LK29LK8MM

LK34LK15MM

LK26LK15MM

J25TERMINAL

J20TERMINAL

J16

TERMINAL

J18TERMINAL

J26TERMINAL

LK25

LK7,5MM

R AMP

C142.2N 50V NP0

Q25MPSA92

R4413k 8th

R59

2k2 8th

D30

1N4004

LK46LK7,5MM

LK48LK7,5MM

LK49LK7,5MM

WIRE LINK

86-756-8687998



AP17653/2 Amp PCB Schematic (Protection)

LE1

LE2

R34

2k2 8th

R26

2k2 8th

R84470R 8th

R102

47k 8th

R7418k 8th

D165V1 Zener 400mW

DGND

PIC VI/Short

+45V R

R7918k 8th

D18

1N4148

SPEAKER TEST

1

2

RL2:A

12V 8A RELAYSpeaker A Relay

R107

1k 8thR10147k 8th

R10610k 8th

123456

CN10

H6 2.54mmR33

91k 8th

R25

91k 8th

R82470R 8th

+45V. L

-45V. L

R83820R 8th

R81820R 8th

RE1

RE2

R72

2k2 8th

R64

2k2 8th

R94470R 8th

R71

91k 8th

R62

91k 8th

R92470R 8th

+45V. R

-45V. R

R93820R 8th

R91820R 8th

ROLO

Q37MPSA42

Q36MPSA42

Q40MPSA42

Q41MPSA42

Q33MPSA92

1

2

RL1:A

12V 8A RELAYSpeaker B Relay

Q34MPSA14

D271N4004

D281N4004

D261N4004

R103

1k 8th

R10510k 8th

Q35MPSA14

D6

1N4148

D9

1N4148

D71N4148

D101N4148

DGND

DGND

R63

100k 8th

R42100k 8th

R109100k 8th

R AMP

+45V P

-45V P

RO

PIC DC Detect

D5

1N4148

D8

1N4148

R112

100k 8th

L AMP

LO

RO

D25

1N4148

R96100k 8th

R9515k 8th

R97120k 8th

R99100k 8th

R77

10k 8th

LO

D24

1N4148

R86100k 8th

R8515k 8th

R10015k 8th

+45V. R

R98120k 8th

D175V1 Zener 400mW

DGND

PIC Clip Detect

12345

CN6

2,5MM 5W ST HEADERTo input PCB/To PIC

DGND

PIC DC DetectPIC Clip Detect

PIC VI/Short

Temp Sense

DGND

R7547k 8th

TH1

ZPP22 100DEGMounted on Heatsink

C64

220P 50V CER

C63220P 50V CER

C69220P 50V CER

C70220P 50V CER

C65220U 16V EL

C66220U 16V EL

C68220U 16V EL

C67220U 16V EL

C624,7N 50V CER

R88100k 8th

R87120k 8th

R8915k 8th

R90120k 8th

C5510U 25V NP

C5410U 25V NP

12345678

CN2

2,5MM 8W 90 PIN HEADER

12345678

CN8


H1B H1A

H15BH15A

H9B H9A

H4A H4B

H3A H3B

H2A H2B

-45V PLK3

LK20MM 24AWG

LK4

LK20MM 24AWG

H5A H5B

H8A H8B+45V P

H7B H7A

H1BH1AH2BH2AH3BH3AH4BH4AH5BH5AH6BH7BH7AH8BH8A

H6B

12345678

CN3


12345678

CN9


H9BH9AH10BH10AH11BH11AH12BH12AH13BH13AH14BH15BH15AH16BH16A

H12A H12B

H11A H11B

H10A H10B

H13A H13B-45V. R

H14B

H16A H16B

LK22LK7,5MM

LK20LK7,5MM

LK21LK7,5MM

LK24LK7,5MM

LK42LK7,5MM

LK43LK7,5MM

LK30LK7,5MM

Q31MPSA42

Q30MPSA92

Q42MPSA92

Q39MPSA92

Q38MPSA42

Q43MPSA42

R1162k2 8th

R117120k 8th

R118100R 8th

Q44MPSA42

D31

1N4148

R1192k2 8th

R120120k 8th

R121100R 8th

Q45MPSA42

D32

1N4148

LK23LK7,5MM

VI Output (R)VI Bottom Input (R)Amp Output (R)VI Top Input (R)-45V (R)Amp Output (R)Clip Output (R)+45V (R)

VI Output (R)VI Bottom Input (R)Amp Output (R)VI Top Input (R)-45V (R)Amp Output (R)Clip Output (R)+45V (R)

Right Protection PCB ConnectorLeft Protection PCB Connector

86-756-8687998



AP17653/2 Amp PCB Schematic (Power Amp)

+45V P

-45V P

GENERAL NOTES

1.2.3.4.5.

D13

1N5402

D14

1N5402

D12

1N5402

D15

1N5402

R PSU

+45V L

-45V L

R1

100R

L PSU

J1

RED

J2

YELLOW

J3

ORANGE

J4

CHASSIS

C48100N 100V MCERAMIC

C46no stuff

C47no stuff

D3

1N5402

D2

1N5402

D4

1N5402

D1

1N5402

J13

RED

J14

YELLOW

J15

ORANGE

C71100N 100V MCERAMIC

C2no stuff

C1no stuff

+45V R

-45V R

F4

F8AL 20MM

F3

F8AL 20MM

F1

F8AL 20MM

F2

F8AL 20MM

C242200U 50/63V EL 105540A/640A

C272200U 50/63V EL 105540A/640A

C422200U 50/63V EL 105540A/640A

C412200U 50/63V EL 105540A/640A

C252200U 50/63V EL 105540A/640A

C262200U 50/63V EL 105540A/640A

C432200U 50/63V EL 105540A/640A

C442200U 50/63V EL 105540A/640A C3

No Stuff

R108

100R

R PSU

J19

CHASSIS

C45

No Stuff

LK2LK7,5MM

L PSU

WIRE LINKWIRE LINK

WIRE LINK WIRE LINK

WIRE LINK FOR 540A ONLY


WIRE LINKS FOR 540A ONLY

12

CN52MM 2W ST HEADER


LK44LK7,5MM

J8TERMINAL

Rev2: R1, R108 change to 100R, C3 and C45 no stuff,

86-756-8687998



AP17653/2 Amp PCB Schematic (Left Channel)

87CN7:D

SPKR 4-WAY

L AMP

D211N4004

D221N4004

+45V L

-45V L

R28

4R7 3WWW

R32

100R

R15

100R

R3150R 8th

R35 2k2 8th

L AMP

R6150R 8th

R10100R

R8100R

R13

10k

R11470R 8th

D23** 2k7 1/8W Res R24

2k2 8th

L AMP

R1822k

L AMP

R16470R 8th

R17470R 8th

R710k 8th

R9

47R 8th

R31100k 8th

L AMP

R2100k 8th

L AMP

R21270R 8th

R22100k 8th

R1130.22R 3W

R270.22R 3W

L AMP

LE1

LE2

34

5

RL2:B

12V 8A RELAYSPKRA

SPEAKER TEST

J5TERMINAL

J6TERMINAL

J7

TERMINAL

43CN7:B

SPKR 4-WAY

E

S

CB

D

5

4

3

1

2

U2SAP15NY

E

S

CB

D

5

1

3

2

4

U1SAP15PY

R3010R 8th

C1747n poly

R11447k

L AMP

R115470R 8th

L INPUT

L INPUT

+45V. L

-45V. L

LO

Q4MPSA92

Q3MPSA92

67

8 RL1:C

12V 8A RELAYSPKRB

R418R 8th

C19

10N 63V PP

R1222k 8th

C1610N 63V PP

C7100P 50V NP0

C8

10P 50V NP0Q52SA970GR

Q112SA970GR

Q12MPSA42

Q10MPSA42

Q9MPSA42

C18

47U 16V NP

C20100U 25V NP

2

CW

3C

CW

1

PR1PRESET 200R 3296W

Q62SC2240GR

Q72SC2240GR

C22100U 63V EL

C10100U 63V EL

R2047k 8th

L AMP

Q13MPSA42

Q2MJE350

C2310U 63V EL

C2147N 63V PE

L AMP

C1110U 63V EL

C947N 63V PE

L AMP

Q152SC2240GR

Q142SA970GR

R36 10R 8th

R23 10R 8th

C547U 16V NP

R5 1k 8th

R191k 8th

12

CN1

2,5MM 2W ST HEADER

Left Input

R80

15R 0,5W CarbonL1

1,2UH AIRCOIL

C56220U 63V EL

C12220U 63V EL

LK19LINK20MM

LK6LINK20MM

Q12SC2240GR

C15100N 100V MCER

LK7LINK20MM

LK18LK8MM

LK17LK8MM

LK16LK8MM

LK15LK8MM

LK14LK8MM

LK12LK8MM

LK11LK8MM

LK10LK8MM

LK8LK8MM

LK9LK8MM

LK13LK15MM

LK5LK15MM

J21TERMINAL

J22TERMINAL

J23TERMINAL

J24TERMINAL

J17

TERMINAL

C41N PP 63V 5%

L AMP

LK1

LK7,5MM

C132.2n 50V NPO

Q8MPSA92

R1413k 8th

R29

2k2 8th

D29

1N4004

LK45LK7,5MM

LK47LK7,5MM

LK50LK7,5MM

WIRE LINK

86-756-8687998



AP17653/1 Amp PCB Board Layout (Top Side)

86-756-8687998



AP17653/1 Amp PCB Board Layout (Bottom Side)

86-756-8687998


AP17656/2AP Part

NoValue Description Reference Qty Factory Part No Comments

Capacitors

100nF 100V Monolithic Ceramic C15,C48,C59,C71540A - 3 640A - 4

1106-104064-001 540A only C48 is not fitted

1nF 63V Polypropylene film C4 1

47uF 16V Non Polarised Electrolytic C5,C18,C34,C50 4 1105-470014-000

47nF 63V Polyester Film C9,C21,C29,C38 4 1117-473053-000100pF 50V NP0 Ceramic C7,C32 2 1181-101042-00010pF 50V NP0 Ceramic C8 1100uF 63V Polarised Electrolytic C10,C22,C30,C39 4 1102-101054-00010uF 63V Polarised Electrlytic C11,C23,C28,C40 4 1102-100054-000220uF 63V Polarised Electrolytic C12,C53,C56,C61 42.2nF 50V NP0 Ceramic C13,C14 210nF 63V Polypropylene film C16,C19,C33,C36 4

47nF 63V Polyester Film C17,C35540A only 2

Only fitted for 540A

100uF 25V Non Polarised Electrolytic C20,C37 2 1105-101024-000

2200uF 50V105deg Polarised Electrolytic

C24-C27,C41-C44540A only 8

1102-222044-001Screened for CA/63V for 540A (540A only)

2200uF 63V105deg Polarised Electrolytic

C24-C27,C41-C44640A only 8

Screened for CA/63V for 640A (640A only)

10pF 50V NP0 Ceramic C31 1 1181-100042-0001nF 50V Ceramic C49 1

10uF 25V Non Polarised Electrolytic C54,C55 2 1105-100024-000

4.7nF 50V Ceramic C62 1 1100-472043-000220pF 50V Ceramic C63,C64,C69,C70 4 1100-221042-000220uF 16V Polarised Electrolytic C65-C68 4 1102-221014-000Diodes

1N5402 Rectifier Diode640A D1-D4, D12-15 540A - D1-4 only

540A - 4 640A - 8

Please stand off pcb by 5mm

1N4148 SignalD5-D10,D18,D24,D25,D31,D32

11 1401-141480-000

3V9 500mW Zener D11,D23 25V1 500mW Zener D16,D17 21N4004 Rectifier Diode D19-D22,D26-D30 9 1401-140040-000Fuses

F8AL 20MM640A F1-F4 540A F1,F2

540A - 2 640A - 4

Fuse Holders640A F1-F4 540A F1,F2

540A - 2 640A - 4

Inductors24.5T 0.9mm 1.2uH Output Inductor L1,L2 2 3203-874801-000Ics

PY016 SAP15PY PNP Power Transistor U1,U3 2 1301-150000-700PY010 SAP15NY NPN Power Transistor U2,U4 2 1300-150000-700

Pots200R 3296W Multiturn Preset PR1,PR2 2Relay

PY594 12V 8A RELAY RL1,RL2 2

Resistors

Cambridge Audio Azur 540A V2 Amp PCB Assembly BOM

Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 29

AP17656/2AP Part



100k 8thR2,R22,R31,R38,R42,R47,R63,R69,R86,R88,R96,R99,R109,R112

14

150R 8th R3,R6,R46,R51 418R 8th R4,R49 2

1k 8thR5,R19,R40,R50,R103,R107

6

91k 8th R25,R33,R62,R71 4

10k 8thR7,R52,R77,R105,R106

5

47R 8th R9, R54 2

100RR1,R8,R10,R15,R32,R53,R55,R60,R70, R108

10

470R 8thR11,R16,R17,R45,R56,R82,R84,R92,R94,R110,R111,R115

12

120k 8thR87,R90,R97,R98,R117,R120

6

22k 8th R12,R57 210k R13,R58 213k 8th R14,R44 2100R 8th R118, R121 222k R18,R43 22k7 8th D11,D23 2

47k 8thR20,R41,R75,R101,R102

5

270R 8th R21,R39 2

10R 8thR23,R30,R36,R37, R68,R76

540A 6 640A 4

640A has R30 and R68 linked out 540A has R30 and R68 fitted

2k2 8thR24,R26,R29,R34,R35,R59,R61,R64,R72,R73, R116, R119

12

0.22R 3W R27,R65,R78,R113 44R7 3W R28,R66 247k R48,R114 215k 8th R85,R89,R95,R100 418k 8th R74,R79 415R 0.5W Carbon film R80,R104 2820R 8th R81,R83,R91,R93 4Transistors

PY910 2SC2240GR NPN Low NoiseQ1,Q6,Q7,Q15,Q23,Q24,Q26,Q32

8

PY018 MJE350 PNP Low Power Q2,Q27 2 1301-350000-200

PY220 MPSA92 PNP High VoltageQ3,Q4,Q8,Q25,Q28-Q30,Q33,Q39,Q42

10 1301-920000-100

2SA970GR PNP Low NoiseQ5,Q11,Q14,Q16,Q21,Q22

6 1301-970000-100


AP17656/2AP Part



PY537 MPSA42 NPN High Voltage

Q9,Q10,Q12,Q13,Q17-Q20,Q31,Q36-Q38,Q40,Q41,Q43-Q45

17 1300-420000-100

MPSA14 NPN Darlington Q34,Q35 2 1300-140000-100



AP17708/4 Abus Module PCB Schematic

5

67

U6:BNJM5532M

3

21

84

U6:ANJM5532M

C20

100n 50V X7R

+24V

R48

47R

R47

47R

R46

150K

R44

120k

C1910p 50V NP0

R20 150K

C1410p 50V NP0

ABUS GND

R42150k

ABUS GND

Q4BC327-25

R29

100R

R28

100R

R334K7

R3510K

R34

27K

R53 1K

VI1

VO3

GN

D2

U7L7812

C25100n 50V X7R

C2410uF 16V EL

ABUS GND

C26220uF 35V EL

+12V

R41

120k

+12V

5

67

U5:BNJM5532M

3

21

84

U5:ANJM5532M

C10

100n 50V X7R

+24V

R17

47R

R18 47R

R19

150k

C15

10p 50V NP0

R32

150k

C7

10p 50V NP0

ABUS GND

ABUS GND

ABUS GND

+5V3

OPT1

GND2

U3

IR REC 3/5V 37KHZ

R3947R

C4100n 50V X7R

C310uF 16V EL

R37470R

D4

1N4148

D3

1N4148

D6

BZX79C2V7

D5

BZX79C2V7

R1210K

ABUS GND

R14

100R

R15

100R

R1327K

R1627K

ABUS GND

CN4IR EMITTER OUTPUTS

R21

120k

R43

120k

R4910K

ABUS GND

R45150K

C22

47U 25V EL

R25150k

C21

47U 25V EL

R24150k

C29

47U 25V EL

R26

120k

R23

120k

STATUS

Q5BC337-25

+5V

LOGIC GND

+24V

ABUS GND

RIGHT

LEFT

R9

100R

R10

100R

R827K

R1127K

ABUS GND

CN3IR EMITTER OUTPUTS

+12V

R364K7

ABUS GND

R27

120k

R22

120k

+24V IN

F2POLYFUSE 1-1A

F1

POLYFUSE 1-1A

R3010K

R3110K

CN8JACK-CKX-3.5-12

3.5mm JACK

+5V

LOGIC GND

1

23

U1:A

4011 VDD=+5VVSS=LOGIC GND

R6

220R

1

2

6

5

4NC

3

U4

OP4N25

5

64

U1:B

4011VDD=+5VVSS=LOGIC GND

8

910

U1:C

4011 VDD=+5VVSS=LOGIC GND

12

1311

U1:D

4011

VDD=+5VVSS=LOGIC GND

R7220K

R3810K

R310K

+5V

LOGIC GND

R42R2

R5

100R

R110K

LOGIC GND

C33100n 50V X7R

LOGIC GND

C6100n 50V X7R

A-BUS B

1

2

3

4

R4047R

C510uF 16V EL

C30100n 50V X7R

C1347p 50V NP0

ABUS GND

C1847p 50V NP0

ABUS GND

C947p 50V NP0

ABUS GND

C1147p 50V NP0

ABUS GND

+24V

R5010K

KEYPAD A

KEYPAD B

CONTROL BUS IN

EMITTER IN (MODULATED IR)

CONTROL BUS OUT

12345678

CN5

GENERIC RJ45X1

ABUS GND

RIGHT AUDIO

LEFT AUDIO

IR

STATUS

POWER

ABUS GND

RIGHT AUDIO

LEFT AUDIO

IR

STATUS

POWER

A-BUS A

IR receiver

A

K

D1CA IR DEMODULATOR

IR receiver

A

K

D2

CA IR DEMODULATOR

C16

10U 35V NP

C17

10U 35V NP

C8

10U 35V NP

C12

10U 35V NP

C27100U 16V EL

ABUS GND

C28100U 16V EL

LOGIC GND

123

CN9

2,5MM 3W ST HEADER

LOGIC GND

12345

CN1

2,5MM 5W ST HEADER

+5V

R2

10K

LOGIC GND

Q1BC337-25

C2100n 50V X7R

C110uF 16V EL

LOGIC GND

13

CN2:A

AV2-8,4-102

4CN2:B

AV2-8,4-10

C31100n 50V X7R

LOGIC GND

Q2BC337-25

C34100n 50V X7R

LOGIC GND

+5V

C35100n 50V X7R

1

3

2 CN7

RICCO PCB JACK

LOGIC GND

LOGIC GND

R52

220R

Cambridge Control Bus Abus Powered Circuitry

LK1LK7,5MM

LK2

LK7,5MM

LK3 LK7,5MM

LK4LK7,5MM

LK5 LK7,5MM

12345678

CN6

GENERIC RJ45X1

ABUS GND

LK6

LK7,5MM

LK7LK7,5MM

LK8LK7,5MM

LK9LK7,5MM

LK10LK7,5MM

LK11

LK7,5MM

LK12LK7,5MM

LK13LK7,5MM

LK14LK7,5MM

LK15LK7,5MM

LK16LK7,5MM

LK17

LK7,5MM

+5V

R51

100R 0.25W Fusible

C361N 50V CERAMIC

C23

1N 50V CERAMIC

C321N 50V CERAMIC

Q3BC337-25

D7

1N4004

+5V

3

OPT

1G

ND

2

U2IR REC 3/5V 36KHZ

86-756-8687998



AP17708/4 Abus Module PCB Layout (Top Side)

CN4CN3

CN6

CN7

CN5

CN8

C30

R49

C26

F2F1

R52

D1 D2 U7

C24

R13

R16

U6U5U2

C6

C5

C20

R20

C14

R48

C16

C13

C17

C19

R47

R8

R11

Q2R

6

Q3

R37

R12

D4

D3

D6D5

U3

U4

R7

C10

R17

C8

R18 C12

C7

C15

R27

R26

C29

R22

R23

R44

R43C21

R46

C18

R19

R32

R21

C22

C9

C11

R25

R24

R45

C28

C23

C33

R4

Q4

Q5

R42

R29

R28

R33

R35

R34

R41

R39

R50

R30

R31

R38

R3

R5

R1

C4

C3

C27

CN9

C32

CN1

Q1

R2

D7

R53

C25

LK1

C2

C1

R15

R14R10

R9

R36

CN2 C31

C34

U1

R40

C35

C36

LK2

LK3

LK4

LK5LK6

LK7

LK8

LK9

LK10

LK11

LK12

LK13

LK14

LK15

LK16

LK17

R51

86-756-8687998



AP17708/4 Abus Module PCB Layout (Bottom Side)

86-756-8687998


AP17711/1AP Part

NoValue Description Factory Part No Qty Component Ident NOTES

2R2 0.125W metal film 1 R447R 0.125W metal film 6 R17, 18, 39, 40, 47, 48100R 0.125W metal film 8 R5, 9, 10, 14, 15, 28, 29220R 0.125W metal film 2 R6, 52470R 0.125W metal film 1 R371K 0.125W metal film 1 R534K7 0.125W metal film 2 R33, 36

10K 0.125W metal film 10R1, 2, 3, 12, 30, 31, 35, 38, 49, 50

27k 0.125W metal film 5 R8, 11, 13, 16, 34

120K 0.125W metal film 8R21, 22, 23, 26, 27, 41, 43, 44

150K 0.125W metal film 8R19, 20, 24, 25, 32, 42, 45, 46

220K 0.125W metal film 1 R7

100R 0.33W Fusible metal film 1 R51Resistor must be raised off the PCB by 5mm

10pF 50V NP0 Ceramic 1181-100042-000 4 C7, 14, 15, 1947pF 50V NP0 Ceramic 1181-470042-000 4 C9, 11, 13, 18.1nF 50V Ceramic 1100-102043-000 3 C23, 32, 36

100nF 50V Ceramic 1100-104043-000 11C2, 4, 6, 10, 20, 25, 30, 31, 33, 34, 35

10uF 16V Polarised Electrolytic 1102-100014-000 4 C1, 3, 5, 2447uF 25V Polarised Electrolytic 1102-470024-000 3 C21, 22, 29100U 16V Polarised Electrolytic 1102-101014-000 2 C27, 28220uF 35V Polarised Electrolytic 1102-221034-001 1 C2610U NP 35V NP Electrolytic 4 C8, 12, 16, 17

PY214 BC337-25 NPN Signal 1300-337000-100 4 Q1, 2, 3, 5PY219 BC327-25 PNP Signal 1301-327000-100 1 Q4

DIODESPY962 Red LED 2 D1, 2 PY759 1N4148 1401-141480-000 2 D3, 4

BZX79C2V7 1402-270001-201 2 D5, 6 1N4004 1401-140040-000 1 D7

4011 Quad 2 Input NAND Gate 1 U1PY755 36kHz IR Receiver 3001-348360-000 1 U2

PY1007 37kHz IR Receiver 3001-348370-000 1 U3PD025 Opto Isolator 4142-500050-001 1 U4

Op amp 4155-320101-600 2 U5, 612V 1A Regulator 4178-120302-600 1 U7

FUSESPOLYFUSE 1.1A

4030-301100-001 2 F1, 2

INTEGRATED CIRCUITS

Cambridge Audio Azur 540A V2 A-Bus PCB BOM

RESISTORS

CAPACITORS

TRANSISTORS

Note: resistors, capacitors and other 'generic' electronic components are not usally stocked by the manufactirer. Please obtain these locally.

NJM5532ML7812

35

Cambridge Audio Azur 540A Amplifier V2.0 IC Pin Layout Details

Input PCB BD140 (Q1 & Q4)

BD139 (Q2, Q3, Q5 & Q6)

BC327 (Q7)

BC337 (Q8)

MPSA14 (Q9)

NE5532 (U1, U5, U6, U7, U9, U10, U12, U13, U14, U15, U16, U17 & U18)

36

7915 (U2)

7805 (U3)

7815 (U4)

LM393 (U8)

TC9163AF (U11)

37

Power Amp PCB SAP15PY (U1 & U3)

SAP15NY (U2 & U4)

2SC2240GR (Q1, Q6, Q7, Q15, Q23, Q24, Q26 & Q32)

MJE350 (Q2 & Q27)

38

MPSA92 (Q3, Q4, Q8, Q25, Q28, Q29, Q30, Q33, Q39 & Q42)

2SA970GR (Q5, Q11, Q14, Q16, Q21 & Q22)

MPSA42 (Q9, Q10, Q12, Q13, Q17, Q18, Q19, Q20, Q31, Q36, Q37, Q38, Q40, Q41, Q43, Q44 & Q45)

MPSA14 (Q34 & Q35)

39

Front Panel & Mains PCB MPSA14 (Q4)

BC337 (Q1 & Q2)

PIC16F72-I/SP

BA6218 (U1)

M74HC4094 (U3)

40

TSOP1836 (U4)

A-BUS PCB BC337 (Q1, Q2, Q3 & Q5)

BC327 (Q4)

4011 (U1)

TSOP1836 (U2)

41

TSOP1837 (U3)

OP4N25 (U4)

NJM5532 (U5 & U6)

7812 (U7)

42

Documents

640A Cambridge Audio Front Page · 2018. 3. 4. · 12 py1037 8554-015020-701 larger support rear assy (with two brass inserts) 13 py1059 8554-015001-302 azur-540a v2-silver amp front