Mainboard (Inputs) Circuit Diagram - Cambridge Audio Azur 640R Service Manual

MCU+5V
JK4B
AV6-8.4-13/EC
4
R OUT
A
REC1 OUT
3
L OUT
C130
C121 C131
R28
330P 47K
104 330P
JK4A
AV6-8.4-13/EC
C6
2
R IN
C5
10U/16
REC2 IN 10U/16
1
L IN
C136 R36
R43
C134
47K
330P 47K
330P
JK6B
AV4-8.4-13/EC
C14
RA
R IN
G2
10U/16
TAPE IN
C12
LA
L IN
10U/16
R41
R44
47K
47K
C137
C135
330P
330P
JK6A
AV4-8.4-13/EC
C18
R
R IN
G1
10U/16
AUX IN
C13
L
L IN
10U/16
R49
C143
47K
C142
330P
C125
330P
104
10U/16
C178
RB-IN
10U/16
C177
C-IN
C176
10U/16
RS-IN
C175 10U/16
LB-IN
C174
10U/16
LS-IN
10U/16
C173
L-IN
C172
10U/16
R-IN
MCU+5V
OVER HEAT
HP/DET
To enhance viewing, please print to A3
Cambridge Azur 640R AV Receiver
D26
1N4148
R59
C4
22K
1000U/10V
Q19
A1015
R56
22K
Q5 R61
C2878
22K
Q20
R29
R62
C2458
47K
R57
Q18
22K 330K
C2878
R55
220K
R53 R54
470
470
CN18
REC1/ROUT 2
REC1/LOUT 4
6
REC2/RIN 8
REC2/LIN 10
12
TAPE/RIN 14
TAPE/LIN 16
18
AUX/RIN 20
AUX/LIN 22
24
26
RB /IN 28
C /IN 30
32
SR /IN 34
LB /IN 36
38
SL /IN 40
FL /IN 42
2*21P2.0(180)
GND
FR /IN
R50
47K
TO DECODER BOARD
CN25
DGND 2
4
MCU+5V 6
8
10
12
2*6P2.0(180)
OVER HEAT
HP/DET

Mainboard (Inputs) Circuit Diagram

R60
22K
-12V
1 REC1/LIN
2 1
3 REC1/RIN
4 3
5
6 5
7 VIDEO2/LIN
8 7
9 VIDEO2/RIN
10 9
11
11 12
13 VIDEO1/LIN
13 14
15 VIDEO1/RIN
15 16
17
17 18
19
19 20
21
21 22
23
23 24
25 VIDEO3/RIN
25 26
27 VIDEO3/LIN
27 28
29
29 30
31 AGND
31 32
33
33 34
35
35 36
37
37 38
39
39 40
41
41
REC1 MUTE
1 DGND
2 1
3 STEREO MODE
4 3
5 P ON/OFF
6 5
7 SYS-MUTE
8 7
9 MUTE
10 9
11 RLAY CON
11 12
PROTECT
C122
104
C7
5
L IN
B
10U/16
REC1 IN
C9
6
R IN
C133
10U/16
JK4C
R30 R31
AV6-8.4-13/EC
C132
47K 47K 330P
330P
C123
104
C8
L
L IN
G1
10U/16
VIDEO2 IN
C22
R
R IN
10U/16 JK5A
R47 R48 AV4-8.4-13/EC
C139
47K 47K
330P
C141
330P
JK5B
AV4-8.4-13/EC
C20
LA
L IN
G2
10U/16
C21 VIDEO1 IN
RA
R IN
10U/16
R45 R46
C140
C138
47K 47K
330P 330P
CN19
6
R IN
5
4
VIDEO3 IN
GND
3
2
L IN
1
2*3P2.0(180)
STEREO MODE
P ON/OFF
SYS-MUTE
MUTE
RLAY CON
PROTECT
13