Cambridge Audio Azur 351R, Service Manual

Page: 20 / 46

20
MCU Schematic 2
R79
OPEN
C147 102
C148 563
C124
104
C126 104
C75 104
C76 104
C74 104
C70 104
C71 104
FB6
FB0603
R77 10K
R78 10K
FB12
FB0603
C122 102
D+5V
C72 102
R80
6.8K
R74 10K
DGND
DGND
AGND
DGND
DGND
DGND
DGND
DGND
DGND
AGND
AGND
AGND
R146 10K
DGND
C121
104
I2C_SCL
A+5V
AOU
TA1+
36
AOU
TA1-
37 35
AOUTB1-
34
AOU
TA2+
32
AOU
TA2-
33 31
AOUTB2-
30
AOU
TA3+
28
AOU
TA3-
29 27
AOUTB3-
26
AOU
TA4-
23
AOU
TA4+
22
AOUTB4-
20 21
MUTEC
38
AINL+
15
AINL-
16
AINR+
14
AINR-
13
VQ
17
FILT+
18
REF GND
19
LPFLT
39
AGND
40
AGND
25
DGND
52
DGND
5
VLC
6
VD
4
VD
51
VARX
41
VA
24
RMC
K
55
SAI_SCLK
61
SAI_LRCK
60
SAI_SDOUT
54
CX_SCLK
2
CX_LRCK
3
CX_SDOUT
56
CX_SDIN1
1
CX_SDIN2
64
CX_SDIN3
63
RESET
12
SCL/CCLK
7
SDA/CDOUT
8
INT
11
AD1/CDIN
9
AD0/CS
10
RXP7_GPO7
42
RXP6_GPO6
43
RXP5_GPO5
44
RXP4_GPO4
45
RXP3_GPO3
46
RXP2_GPO2
47
RXP1_GPO1
48
RXP0
49
TXP
50
VLS
53
OMCK
59
ADCIN2
57
ADCIN1
58
CX_SDIN4
62
IC11
CS42518-CQZ
D
A/
A
D
2 3
1
4
IC3A
NJM2068M
R19 2.94K
C42 182
R24
6.19K
C49
330P
AGND
R16 5.49K R40 2K
R48 887
R44 1.87K
C78 562
AGND
AGND
C86 122
AGND
6 5
7
8
IC3B
NJM2068M
R49 2.94K
C81 182
R52
6.19K
C89
330P
AGND
R41 5.49K R42 2K
R50 887
R45 1.87K
C79 562
AGND
AGND
C88
122
AGND
2 3
1
4
IC4A
NJM2068M
R23 2.94K
C43 182
R25
6.19K
C51
390P
AGND
R15 5.49K
R13 1.65K
R20 887
R17 1.87K
C40 562
AGND
AGND
C47 122
AGND
R29 1.2K
AGND
2 3
1
4
IC9A
NJM2068M
R46 2.94K
C80 182
R51
6.19K
C87
330P
AGND
R38 5.49K
R39 2K
R47 887
R43 1.87K
C77 562
AGND
AGND
6 5
7
8
IC9B
NJM2068M
R94 2.94K
C130 103
R96
6.19K
C137
473
AGND
R81 6.19K R82 1.65K
R95 887
R87 1.87K
C129 104
AGND
AGND
C57 104
AGND
C85 122
AGND
C136
104
AGND
R56 47K
AGND
R138 47K
AGND
6 5
7
8
IC4B
NJM2068M
R22 2.94K
C44 182
R26
6.19K
C50
390P
AGND
R12 5.49K R14 1.65K
R21 887
R18 1.87K
C41 562
AGND
AGND
C48 122
AGND
R30 1.2K
AGND
R37 33R
R76
220
R75
220
V IN
3
GND
1
V OUT
2
IC2
AMS1117-3.3
DGND
I2C_SDA
DA3.3V
DA3.3V
HDMI_SPDIF
COAX1_IN
OPT_IN
C120
103
C69 104
DGND
FL-OUT
FR
-O
UT
LS-OUT RS-OUT C-OUT LEF-OUT
+15V
C54 104
AGND
-15V
C56 104
AGND
+15V
C55 104
AGND
-15V
C53 104
AGND
+15V
C52 104
AGND
-15V
AGND
AGND
AGND
AGND
C28
104
C27
104
R14
5
10R/1W
A+5V
+15V
DGND
TO
HDM
I PC
B
VCC
HDMI_SPDIF
COAX2_IN
C45 22U/16
C60 33U/16
C46 22U/16
C61 33U/16
C83 22U/16
C84 22U/16
C82 22U/16
C94 10U/16
C1
31
22U/16
C1
45
10U/16
C73
100U/10
C12
5
2.2U/50
C12
3
100U/10
C14
6
220U/10
ADC_RESET I
1
G
2
O
3
IC14 KA7805
LPF_C
LPF_FL LPF_FR
DSP_RESET
DSP_SPI_CS
DSP_SPI_BSY
DSP_SDA
D
SP
_S
CL
HDMI_RESET#
EP_MOSI EP_SCK
EP_CS
I2C_SCL I2C_SDA
ADC/DSD_SEL#
DSP_SPI_SDA DSP_SPI_IRQ
2 4 6 8 10 12 14 16 18 20 22 24 26 32 28 30
1 3 5 7 9
11 13 15 17 19 21 23 25 27 31 29
34
33
CN1
2*17P2.0 (180) Twin-Row Socket
DA_OMCK DA_SPI_LRCK DA_SPI_SCLK DA_SPI_SDOUT DA_CX_SD4 DA_CX_SD3 DA_CX_SD2 DA_CX_SD1 DA_CX_LRCK DA_CX_SCLK DA_CX_SDOUT DA_RMCK
HDMI_SPDIF
2 3
1
4
IC12A
NJM2068M
2 3
1
4
IC13A NJM2068M
C133
471
R141 2.8K
R90
634
R84 90.9 R89 634
R88
634
R83 90.9
R102 10K
R97 332
R100 3.32K
R139 1K
C132
471
C26 104
C25 104
C24 104
C127
272
AGND
AGND
AGND
AGND
6 5
7
8
IC12B
NJM2068M
6 5
7
8
IC13B
NJM2068M
C135
471
R142 2.8K
R93
634
R86 90.9 R92 634
R91
634
R85 90.9
R103 10K
R98 332
R101 3.32K
R140 1K
C134
471
C31
104
C30 104
C29 104
C128 272
AGND
AGND
AGND
AGND
R143 1.5k
R144 1.5K
C138
100U/10
C139 100U/10 C141 100U/10
C140 100U/10
+15V
-15V
-15V
+15V
A+5V
TUNER_R TUNER_L
+15V
-15V
VOL_CLK VOL_DA
2 4 6 8
10 12
1 3 5 7 9 11
CN8
6P2.0*2 (90) Twin-Row Pin
AGND
TO A
M
P P
CB
SOURCE_L
SOURCE_R
TUNER_R TUNER_L VOL_CLK VOL_DA
C1
83
104
C1
86
104
C1
90
104
C2
19
104
C2
17
104
C2
18
104
AGND
DGND
C2
16
104
DGND
C2
39
104
1
2
14
IC24A
74HCU04D
FB5
FB0603
D+5V
C103
104
DGND
R167 10R
OPT2_IN
DGND
C105
104
G
I/O
+V
U2 JSR1162
-002
3
4
IC24B
74HCU04D
R177 10R
C180 104
R178
1M
R180
75
DGND
C181
105
DGND
COAX1_IN
OPT_IN
COAX1_IN
FB13
FB0603
D+5V
13
12
7
IC24F 74HCU04D DGND
C189 100P
5
6
IC24C
74HCU04D
9
8
IC24D
74HCU04D
R185 10R
C185
104
R164
1M
R187 75
DGND
C187
105
COAX2_IN
COAX2_IN
C188
100P
C191
100U/10
DGND 2 G1 1 G2
JK1
AV2-8.4-14/PB
LPF_SUB
VCC
Y0
1
Y2
2
COM
-Y
3
Y3
4
Y1
5
INH
6
VEE
7
VSS
8
B
9
A
10
X3
11
X0
12
COM
-X
13
X1
14
X2
15
VDD
16
IC
18
HEF4052BT
VOL+7V V
O
L-
7V
C1
09
104
C11
0
104
AGND
R1
13
0R
AGND
ST_BYPASS
ST_BYPASS
SOURCE_R SOURCE_L
SOURCE_R
SOURCE_L
C1
12
10U/16
C1
11
10U/16
FB17
FB0603
FB19
FB0603
FB18
FB0603
2 3
1
4
IC10A
NJM2068M
R158 2.94K
C175 182
R160
6.19K
C177
390P
AGND
R57 5.49K R58 2K
R159 887
R155 1.87K
C174 562
AGND
AGND
6 5
7
8
IC10B
NJM2068M
R169 2.94K
C182 182
R171
6.19K
C192
390
AGND
R163 5.49K
R165 2K
R170 887
R168 1.87K
C178 562
AGND
AGND
C166 104
AGND
C176 122
AGND
C193
122
AGND
LB-OUT RB-OUT
+15V
C165 104
AGND
-15V
C1
04
22U/16 C1
60
22U/16
C95
103
C102
103
C93
103
ADC_RESET
I2C_SCL I2C_SDA
6 5
7
8
IC20B
NJM2068M
R182 1K R174 1K
R179 1K
R188
1K
AGND
C196
10PF
AGND
R162 47K
AGND
LPF_LS/
C169 104
AGND
-15V
C1
71
10U/16
R190 100
2 3
1
4
IC20A
NJM2068M
R181 1K
R173 1K
R175 1K
R186
1K
AGND
C197
10PF
AGND
R161 47K
AGND
LPF_RS/
C167 104
AGND
+15V
C1
70
10U/16
R189 100
R184 1K
R183 1K
IN1
1
D1
2
S1
3
V-
4
S4
6
D4
7
GND
5
IN4
8
IN3
9
D3
10
S3
11
NC
12
V+
13
S2
14
D2
15
IN2
16
IC
23
NJU201AM
R172 10K
DMX5.1_SET
DMX5.1_SET
AGND
+15V -15V
C195
104
C194 104
AGND
LPF_LS/
LPF_RS/
DSP_SDA DSP_SCL
HDMI_RESET#
EP_MOSI
EP_SCK EP_CS I2C_SCL
I2C_SDA
ADC/DSD_SEL#
DSP_SPI_SDA DSP_SPI_IRQ DSP_SPI_CS DSP_SPI_BSY
C33
103
BT_SPDIF
FB1
0R
R176
75
R166
75
R209
10M
R196
10M
MCU-sch 2/3
167