640A Cambridge Audio Front Page · 2018. 3. 4. · 12 py1037 8554-015020-701 larger support rear...
Transcript of 640A Cambridge Audio Front Page · 2018. 3. 4. · 12 py1037 8554-015020-701 larger support rear...
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.
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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)
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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
To enhance viewing, please print to A3 5
Cambridge Audio Azur 540A V2.0 Amplifier
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
To enhance viewing, please print to A3 6
Cambridge Audio Azur 540A V2.0 Amplifier
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
To enhance viewing, please print to A3 7
Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
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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Cambridge Audio Azur 540A V2.0 Amplifier
AP17649/4 Input PCB Board Layout (Top Side)
Super Hi-Fidelity Ultra Linear Preamp Stage
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17649/4 Input PCB Board Layout (Bottom Side)
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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
Cambridge Audio Azur 540A V2.0 Amplifier
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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Cambridge Audio Azur 540A V2.0 Amplifier
AP17977/2 Voltage Select Switch PCB Layout (Top Side)
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Cambridge Audio Azur 540A V2.0 Amplifier
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
Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17657/1 Front Panel & Mains PCB Layout (Top Side)
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17657/1 Front Panel & Mains PCB Layout (Bottom Side)
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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
Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
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
2,5MM 8W 90 PIN HEADER
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
2,5MM 8W 90 PIN HEADER
12345678
CN9
2,5MM 8W 90 PIN HEADER
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
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Cambridge Audio Azur 540A V2.0 Amplifier
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 LINK FOR 540A ONLY
WIRE LINKS FOR 540A ONLY
12
CN52MM 2W ST HEADER
WIRE LINK FOR 540A ONLY
LK44LK7,5MM
J8TERMINAL
Rev2: R1, R108 change to 100R, C3 and C45 no stuff,
86-756-8687998
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Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17653/1 Amp PCB Board Layout (Top Side)
86-756-8687998
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17653/1 Amp PCB Board Layout (Bottom Side)
86-756-8687998
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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
NoValue Description Reference Qty Factory Part No Comments
Cambridge Audio Azur 540A V2 Amp PCB Assembly BOM
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
Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 30
AP17656/2AP Part
NoValue Description Reference Qty Factory Part No Comments
Cambridge Audio Azur 540A V2 Amp PCB Assembly BOM
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
Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 31
Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
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
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Cambridge Audio Azur 540A V2.0 Amplifier
AP17708/4 Abus Module PCB Layout (Bottom Side)
86-756-8687998
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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