Cambridge Audio Azur 640A Integrated Amplifier
AP12714/6 Input & Tone PCB Schematic (Input Select)
(Production change in 2003 - if R48/R56 fail, please refer to
Service Bulletin: TNBC-0006)
CD IN L
TUNER IN L
DVD IN L
AV IN L
CD IN R
TUNER IN R
DVD IN R
AV IN R
PHONO/AUX IN L
PHONO/AUX IN R
TAPE OUT2 R
TAPE OUT1 R
TAPE OUT2 L
TAPE OUT1 L
TAPE MON L
TAPE MONR
PREOUT R
PREOUT L
st
dat
clk
© COPYRIGHT
The Audio Partnership
Gallery Court
Hankey Place
LONDON SE1 4BB
Tel : +44 (0)171 940 2200
Fax : +44 (0)171 940 2233
6
CN10:D
QUAD PHONO
3
CN11:B
QUAD PHONO
6
CN11:D
QUAD PHONO
3
CN12:B
QUAD PHONO
5
4
CN10:C
QUAD PHONO
2
1
CN11:A
QUAD PHONO
5
4
CN11:C
QUAD PHONO
2
1
CN12:A
QUAD PHONO
5
4
CN13:C
QUAD PHONO
1
2
3
4
5
6
CN8
HEADER6
PHONO I/O
LK1
6
CN13:D
QUAD PHONO
1
2
3
4
5
6
CN7
HEADER6
PHONO PSU
3
CN10:B
QUAD PHONO
2
1
CN10:A
QUAD PHONO
3
2
1
84
U6:A
NE5532
R9
56R
R8
56R
5
6
7
U6:B
NE5532
3
CN13:B
QUAD PHONO
6
CN12:D
QUAD PHONO
2
1
CN13:A
QUAD PHONO
5
4
CN12:C
QUAD PHONO
3
2
1
84
U3:A
NE5532
5
6
7
U3:B
NE5532
-15V
+15V
+12V -12V
LK2
R21
220K
R23
220K
R24
100R
R25
100R
R26
100R
R27
220K
R28
220K
R29
100R
R30
100R
R31
100R
R17
220K
R32
220K
R33
220K
R34
100R
R35
100R
R36
100R
R37
100R
R38
100R
R39
100R
R40
220K
R41
220K
+15V
-15V
+30V
C2
47n poly
C3
47n poly
C4
47n poly
C5
47n poly
C7
47n poly
C8
47n poly
C12
22p
C13
22p
R6
220K
R5
10k
R7
10k
R10
10k
R14
10k
R15
100K
R16
100K
C25
10u 16V NP
R18
100K
R19
100K
C14
10u 16V NP
R49
100R
R51
100R
R53
100R Pre Only
C26
100n Pre Only
-15V
+15V
+45V
+30V
R55
680R
LCHIN
RCHIN
LCHOUT
RCHOUT
HEADPHONE
VEE
1
L1
2
L2
3
L4
5
L3
4
L-COM1
6
L-COM2
9
L5
7
L6
8
L-COM3
12
L7
10
L8
11
ST
13
VSS
14
CK
15
DATA
16
R8
18
R7
19
R-COM3
17
R6
21
R5
22
R-COM2
20
R-COM1
23
R3
25
R4
24
R2
26
R1
27
VDD
28
U1
NJU7313
R22
220K
R50
220K
2
1
CN4:A
DUAL PHONO
3
CN4:B
DUAL PHONO
L R
J8
CHASSIS
4
3
2
1
CN1
H4 2.54mm
4
3
2
1
CN22
H4 2.54mm
R48
100R
R56
100R
D1
12V Zener 400mW
D2
12V Zener 400mW
+12V
-12V
C22
10u 25V
C23
10u 25V
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