Cambridge Audio Azur 840C, Service Manual

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Cambridge Audio Azur 840C CD Player
AP19129/4
D
A
C DSP Circuit Diagram (DSP)
BITCLK WD
CLK
SD
ATA_L
SD
ATA_R
CS_D
AC1
CS_D
AC2
RE
L
A
Y
SS
D
S
P
R
ESET
RESET D
A
C1_MCLK
D
A
C2_MCLK
MOSI SCK
SS_1
SCK_1
DS P_MISO_1
DS P_MOSI_1
D7 D6 D5 D4 D3 D2 D1 D0 A18 A17 A16 A15 A14 A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
WE_FLASH#
OE_FLASH#
CS_FLASH#
MUTE
I2SDATA
I2SFRAME
INTREQ
MISO
RX
P
3
1
RX
P
2
2
RX
P
1
3
RX
P
0
4
RX
N
5
VA
6
AGND
7
FILTER
8
RST
9
RX
P
4
10
RX
P
5
11
RX
P
6
12
RX
P
7
13
AD0/CS
14
AD1/CDIN
15
S
CL/CCLK
16
SDA/CDOUT
17
AD2/GP
O
2
18
GP
O
2
19
GP
O
0
20
VL
21
DGND
22
VD
23
RMC
K
24
OM
CK
25
SDO
U
T
26
OS
CLK
27
OLR
CK
28
U11
CS8416
CS8416_RXP0
SERVO_SPD
IF_OUT_3.3V
C27
100N5 0VY5V SM
0805
3.3V
R34
1K
0805
C31
10U
1
6V
EL
1 2 3 4
5 6 7 8
R35
100R
24.576MHz
3.3V
R37
10K
0805
R39
10K
0805
CS8406_TXP
R41
10K
0805
VCC
8
CLK
5
N/C
1
GND
4
X1
24.576MHz
C36
10U
1
6V
EL
+5V_OSC
1
2
U15:A
7
4
VHC
1
4
VCC=OSC_3.3V
3
4
U15:B
7
4
VHC
1
4
5
6
U15:C
7
4
VHC
1
4
13
12
U15:D
7
4
VHC
1
4
11
10
U15:E
7
4
VHC
1
4
9
8
U15:F
7
4
VHC
1
4
R42
100R
0805
R43
100R
0805
R44
100R
0805
R45
100R
0805
C37
10P5 0VY5 VS M
0805
C38
10P5 0VY5 VS M
0805
C39
10P5 0VY5 VS M
0805
C40
10P5 0VY5 VS M
0805
SCHMITT INVERTER
C41
10P5 0VY5 VS M
0805
R46
100R
0805
1 2 3 4
5 6 7 8
R49
33R
1
2
3
4
5
6
7
8
R54
33R
R57
1K
0805
R58
1K
0805
1
2
3
4
5
6
7
8
R55
33R
R56
10K
0805
R61
100R
0805
1
2
3
4
5
6
7
8
R62
100R
1 2 3 4
5 6 7 8
R36
33R
1
2
3
4
5
6
7
8
R50
100R
1
3
5
7
2
4
6
8
9 10
11
13
12
14
CN6
CONN-7HEAD
D
U
AL
1 2 3 4
5 6 7 8
R51
10K
R52
4K7
0805
3.3V
D
SP
JTEG
1.2V
3.3V
1
2
3
4
5
6
7
8
R53
33R
1
2
3
4
5
6
7
8
R59
33R
S
D
A
/CD
OOUT
1
AD0/CS
2
AD2
3
RX
P
4
TES
T
5
VD
6
TES
T
7
TES
T
8
RST
9
TES
T
10
TES
T
11
ILR
C
K
12
IS
CLK
13
SDI
N
14
TCBL
15
TES
T
16
TES
T
17
TES
T
18
IN
T
19
U
20
OM
CK
21
GND
22
VL
23
H/S
24
TXN
25
TXP
26
AD1/CDI
N
27
S
CL/CCLK
28
U12
CS8406
3.3V
3.3V
R38
100R
0805
R40
100R
0805
1
2
3
4 5
6
7
8
R60
100R
1 2 3 4
5 6 7 8
R63
100R
2
3
1
U19:A
74V
H
C125
V
CC=3.3V
5
6
4
U19:B
V
CC=3.3V
9
8
10
U19:C
V
CC=3.3V
12
11
13
U19:D
V
CC=3.3V
2
3
1
U20:A
VCC=+5V
5
6
4
U20:B
74HCT125
VCC=+5V
9
8
10
U20:C
VCC=+5V
12
11
13
U20:D
VCC=+5V
U_INTREQ
U_MISO
U_MOSI U_SCLK
U_SS
U_RESET
VCC
3
RST
2
GND
1
U21
D
S
1818
1
FUNCTIONA
L
0M
O
D
E
1
BOOT
0
MODE
GND
1
GND
2
GND
7
VR
OUT2
4
VR
OUT1
5
VD
D
E
XT
6
GND
8
GND
9
CLKIN
10
XTA
L
11
VD
D
EXT
12
RE
SE
T
13
NMI
14
GND
15
RT
X
O
16
RT
X
I
17
V
DDRT
C
18
GND
19
VD
D
E
XT
20
PPI_CLK
21
PPI0
22
PPI1
23
PPI2
24
PPI3
26
VD
D
IN
T
25
PF15/PPI4
27
PF14/PPI5
28
PF13/PPI6
29
GND
30
VD
D
E
XT
31
PF12/PPI7
32
PF11/PPI8
33
PF10/PPI9
34
PF9/PPI10
35
PF8/PPI11
36
PF7/S
PIS
EL7/PPI12
37
PF6/S
P
IS
EL6/PPI13
38
GND
39
GND
40
GND
41
GND
42
GND
43
GND
44
VDDEXT
45
PF5/SPIS EL5/PPI14
46
PF4/SPIS EL4/PPI15
47
PF3/SPIS EL3/PPI_FS3
48
PF2/SPIS EL2
49
PF1/SPIS EL1/TMR CLK
50
PF0/SPIS S
51
VDDIN T
52
SCK
53
MISO
54
MOSI
55
GND
56
VDDEXT
57
DT1SE C
58
DT1P RI
59
TFS 1
60
TSCLK1
61
DR1SEC
62
DR1PRI
63
RFS1
64
RCL K1
65
VDDIN T
66
DT0SE C
67
DT0P RI
68
TFS 0
69
GND
70
VDDEXT
71
TSCLK0
72
DR0SEC
73
DR0PRI
74
RFS0
75
RS CLK0
76
TMR 2
77
TMR 1
78
TMR 0
79
VDDIN T
80
TX
81
RX
82
EMU
83
TRS T
84
TMS
85
TD1
86
TD0
87
GND
88
GND
89
GND
90
GND
91
GND
92
VD
D
E
XT
93
TCK
94
BM
OD
E1
95
BM
OD
E0
96
GND
97
D
A
TA
15
98
D
A
TA
14
99
DAT
A1
3
100
D
A
TA
12
101
D
A
TA
11
102
DAT
A1
0
103
DAT
A
9
104
DAT
A
8
105
GND
106
VD
D
EXT
107
DAT
A
7
108
DAT
A
6
109
DAT
A
5
110
DAT
A
4
112
VD
D
IN
T
111
DAT
A
3
113
DAT
A
2
114
DAT
A
1
115
DAT
A
0
116
GND
117
VD
D
E
XT
118
BG
119
BG
H
120
ADDR19
121
ADDR18
122
ADDR17
123
ADDR16
124
ADDR15
125
ADDR14
126
ADDR13
127
GND
128
GND
129
GND
130
GND
131
GND
132
GND
133
VDD EXT
134
ADDR12
135
ADDR11
136
ADDR10
137
ADDR9
138
ADDR8
139
ADDR7
140
ADDR6
141
ADDR5
142
VDD IN T
143
GND
144
VDD EXT
145
ADDR4
146
ADDR3
147
ADDR2
148
ADDR1
149
ABE 1
150
ABE 0
151
AWE
152
ARE
153
AOE
154
GND
155
VDD EXT
156
VDD IN T
157
AMS3
158
AMS2
159
AMS1
160
AMS0
161
ARDY
162
BR
163
SA1 0
164
SWE
165
SCA S
166
SRAS
167
VDD IN T
168
CLKOUT
169
GND
170
VDD EXT
171
SMS
172
SCK E
173
GND
174
GND
175
GND
176
GND
3
U13
AD
SP-BF532
R30
0R
0805
R64
0R
0805
I2SERR
I2SERR
C28
100N5 0VX7R SM
0805
C29
100N5 0VX7R SM
0805
C30
10N50V X7R SM
0805
C32
100N5 0VX7R SM
0805
C33
100N50V X7R SM
0805
C97
100N50V X7R SM
0805
C74
100N50V X7R SM
0805
C165
10U
1
6V
EL
C166
10U1 6VEL
C167
10U16V EL
C75
100N
50V
X7R
S
M
0805
C76
100N
50V
X7R
S
M
0805
C77
100N
5
0V
X7R
S
M
0805
C78
100N
5
0V
X7R
S
M
0805
C96
100N
5
0V
X7R
S
M
0805
C79
100N
50V
X7R
S
M
0805
C80
100N50V X7R SM
0805
C81
100N50V X7R SM
0805
C82
100N50V X7R SM
0805
C83
100N50V X7R SM
0805
C84
100N50V X7R SM
0805
C85
100N
50V
X7R
S
M
0805
C86
100N
50V
X7R
S
M
0805
C95
100N
50V
X7R
S
M
0805
C87
100N
50V
X7R
S
M
0805
C88
100N
50V
X7R
S
M
0805
C89
100N5 0VX7R SM
0805
C90
100N5 0VX7R SM
0805
C91
100N5 0VX7R SM
0805
C92
100N5 0VX7R SM
0805
C93
100N5 0VX7R SM
0805
C94
100N5 0VX7R SM
0805
C168
100N50V X7R SM
0805
C169
100N50V X7R SM
0805
3.3V
+5V
R132
100R
0805
D15
B
A
S16
75V
0
,3A
D16
B
A
S16
75V
0,3A
MUTE_PIC
R135
10K 0805
3.3V
D
S
P
C149
10U
35V
E
L
C143
10U
35V
E
L
R153
33R0 805
R130
10K
0805
3.3V
D
S
P
1 2 3
CN11
HEAD
ER
3WAY
HW/SW
1.2V
D
S
P
R87
10K 0805
R88
10K 0805
3.3V
3.3V
R2
0R
1206
R89
0R
1206
1
INDICATES
TEST
POINT
REF
SEE
DAC
TEST
SIGNALS
LIST
FOR
SIGNAL
D
ESCRIPTION
13 14
15
16
17
18
19
20
21
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