
1.AUDIO BOARD (2/4)
12
3V3Z
C1V8
DGND
R1V8
DGND
3V3R1
DGND
DGND
Modulator chip
DGND
J1007
RESET
DGND
CH 1
B
REF0
CH 1
B
REF1
CH 1
B
REF2
ZI
NT
D
ZRST
MCLK0
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1004
NC7SZ374P6X
R4V
DGND
CH1_REF0a
U1025
NC7SV86P5X
DGND
C3V3
' * 1 '
CH0_MC
MCLK1
MCLK0
1
2
4
5
3
U1027
NC7SV86P5X
DGND
C3V3
DGND
CH2_MC
DGND
CH0_MC
DGND
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1008
NC7SZ374P6X
R4V
DGND
CH1_REF1a
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1012
NC7SZ374P6X
R4V
DGND
CH1_REF2a
DGND
DGND
DGND
CH1_REF1a
CH1_REF2a
CH1_REF0a
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1016
NC7SZ374P6X
R4V
DGND
CH0_REF0a
CH0_MC
& 3
'
4
* QG
9 FF
U1020
NC7SZ374P6X
R4V
DGND
CH0_REF1a
& 3
'
4
* QG
9 FF
U1024
NC7SZ374P6X
R4V
DGND
CH0_REF2a
DGND
DGND
DGND
CH 3
B
REF0
CH 3
B
REF1
CH 3
B
REF2
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1003
NC7SZ374P6X
R4V
DGND
CH3_REF0a
CH2_MC
DGND
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1007
NC7SZ374P6X
R4V
DGND
CH3_REF1a
& 3
'
4
* QG
9 FF
1
2
3
4
5
6
U1011
NC7SZ374P6X
R4V
DGND
CH3_REF2a
DGND
DGND
DGND
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1015
NC7SZ374P6X
R4V
DGND
CH2_REF0a
CH2_MC
& 3
'
4
* QG
9 FF
U1019
NC7SZ374P6X
R4V
DGND
CH2_REF1a
& 3
'
4
* QG
9 FF
U1023
NC7SZ374P6X
R4V
DGND
CH2_REF2a
DGND
DGND
DGND
CH0_REF0a
CH0_REF1a
CH0_REF2a
CH2_REF1a
CH2_REF2a
CH2_REF0a
CH3_REF2a
CH3_REF1a
CH3_REF0a
R4V
DGND
R4V
DGND
C3V3
DGND
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1000
NC7SZ374P6X
R4V
DGND
CH5_REF0a
MCLK1
CH4_MC
& 3
'
4
* QG
9 FF
U1005
NC7SZ374P6X
R4V
DGND
CH5_REF1a
& 3
'
4
* QG
9 FF
U1009
NC7SZ374P6X
R4V
DGND
CH5_REF2a
DGND
DGND
DGND
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1013
NC7SZ374P6X
R4V
DGND
CH4_REF0a
CH4_MC
& 3
'
4
* QG
9 FF
U1017
NC7SZ374P6X
R4V
DGND
CH4_REF1a
& 3
'
4
* QG
9 FF
U1021
NC7SZ374P6X
R4V
DGND
CH4_REF2a
DGND
DGND
DGND
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1001
NC7SZ374P6X
R4V
DGND
CH7_REF0a
CH6_MC
& 3
'
4
* QG
9 FF
U1006
NC7SZ374P6X
R4V
DGND
CH7_REF1a
& 3
'
4
* QG
9 FF
U1010
NC7SZ374P6X
R4V
DGND
CH7_REF2a
DGND
DGND
DGND
&+ B5()
&+ B5()
&+ B5()
& 3
'
4
* QG
9 FF
U1014
NC7SZ374P6X
R4V
DGND
CH6_REF0a
CH6_MC
& 3
'
4
* QG
9 FF
U1018
NC7SZ374P6X
R4V
DGND
CH6_REF1a
& 3
'
4
* QG
9 FF
U1022
NC7SZ374P6X
R4V
DGND
CH6_REF2a
DGND
DGND
DGND
R4V
DGND
R4V
DGND
5
U1026
NC7SV86P5X
DGND
C3V3
DGND
CH4_MC
1
2
4
5
3
U1028
NC7SV86P5X
DGND
C3V3
DGND
CH6_MC
DGND
CH4_REF0a
CH4_REF1a
CH4_REF2a
CH5_REF0a
CH5_REF1a
CH5_REF2a
CH6_REF0a
CH6_REF1a
CH6_REF2a
CH7_REF2a
CH7_REF1a
CH7_REF0a
844K
DGND
TPG1005
N+ ]
C1038
22N
C1047
22N
C105
22N
C1055
22N
C1059
22N
C1063
22N
C1064
22N
C1060
22N
C1056
22N
C1052
22N
C1048
22N
C1039
22N
C1044
22N
C1049
22N
C1053
22N
C1057
22N
C1061
22N
C1065
22N
C1066
22N
C1062
22N
C1058
22N
C1054
22N
C1050
22N
C1045
22N
MCK0_OUT
1
MCK0_OUT
2
CKO0P1V8
3
CKO0GND
4
PWMCK0_OU
7
5
CKO0P3V3
6
P1V8
7
GND
8
C1P1V8
9
CH1_REF0
10
C1P3V3
11
C1GND
12
CH1_REF1
13
CH1_REF2
14
CH1_FB0
15
CH1_FB1
16
CO1P1V8
17
CO1GND
18
CO1P3V3
19
CH0_FB1
20
CH0_FB0
21
CH0_REF2
22
CH0_REF1
23
C0GND
24
C0P3V3
25
CH0_REF0
26
C0P1V8
27
P1V8
28
GND
29
P3V3
30
CH3_PWM2
31
CH3_PWM1
32
CH3_PWM0
33
CH2_PWM2
34
CH2_PWM1
35
CH2_PWM0
36
GND
37
P3V3
38
CH1_PWM2
39
CH1_PWM1
40
CH1_PWM0
41
CH0_PWM2
42
CH0_PWM1
43
CH0_PWM0
44
P3
V
3
45
GN
D
46
P1
V
8
47
C
H
_0_
1_A
U
D
IO
_S
C
K
48
C
H
_0_
1_A
U
D
IO
_S
D
49
C
H
_0_
1_A
U
D
IO
_W
S
50
C
H
_2_
3_A
U
D
IO
_S
C
K
51
C
H
_2_
3_A
U
D
IO
S
D
52
C
H
_2_
3_A
U
D
IO
_W
S
53
P
W
M_
MO
D
E
54
GP
IO
_
0
55
GP
IO
_
1
56
P3
V
3
57
GN
D
58
P1
V
8
59
GP
IO
_
2
60
IN
T
E
RRU
P
T
61
BR
ID
GE
_
O
N
62
RE
S
E
T
63
MC
K
_
S
E
L
64
GP
IO
_
3
65
GN
D
66
P3
V
3
67
GP
IO
_
4
68
GP
IO
_
5
69
TE
S
T
70
SPI
_
C
K
71
SPI
_
C
S
72
SPI
_
D
A
T
A
73
P1
V
8
74
GN
D
75
P3
V
3
76
GP
IO_
6
77
GP
IO
_
7
78
VP
D
79
C
H
_4_
5_A
U
D
IO
_W
S
80
C
H
_4_
5_A
U
D
IO
_S
D
81
C
H
_4_
5_A
U
D
IO
_S
C
K
82
C
H
_6_
7_A
U
D
IO
_W
S
83
C
H
_6_
7_A
U
D
IO
_S
D
84
C
H
_6_
7_A
U
D
IO
_S
C
K
85
P1
V
8
86
GN
D
87
P3
V
3
88
CH7_PWM0
89
CH7_PWM1
90
CH7_PWM2
91
CH6_PWM0
92
CH6_PWM1
93
CH6_PWM2
94
P3V3
95
GND
96
CH5_PWM0
97
CH5_PWM1
98
CH5_PWM2
99
CH4_PWM0
100
CH4_PWM1
101
CH4_PWM2
102
P3V3
103
GND
104
P1V8
105
C7P1V8
106
CH7_REF0
107
C7P3V3
108
C7GND
109
CH7_REF1
110
CH7_REF2
111
CH7_FB0
112
CH7_FB1
113
C67P1V8
114
C67GND
115
C67P3V3
116
CH6_FB1
117
CH6_FB0
118
CH6_REF2
119
CH6_REF1
120
C6GND
121
C6P3V3
122
CH6_REF0
123
C6P1V8
124
GND
125
P1V8
126
CKO1P3V3
127
PWMCK1_OUT
128
CKO1GND
129
CKO1P1V8
130
MCK1_OUT
131
MCK1_OUT
132
C5
P
1
V
8
133
C
H
5_R
E
F
0
134
C5
P
3
V
3
135
C5
G
N
D
136
C
H
5_R
E
F
1
137
C
H
5_R
E
F
2
138
C
H
5_F
B
0
139
C
H
5_F
B
1
140
C
45P
1V
8
141
C
45G
N
D
142
C
45P
3V
3
143
C
H
4_F
B
1
144
C
H
4_F
B
0
145
C
H
4_R
E
F
2
146
C
H
4_R
E
F
1
147
C4
G
N
D
148
C4
P
3
V
3
149
C
H
4_R
E
F
0
150
C4
P
1
V
8
151
CK
IP
1
V
8
152
CK
IG
N
D
1
153
MC
K
_
IN
154
CK
IP
3
V
3
155
MC
K
_
IN
_
B
A
R
156
CK
IG
N
D
2
157
C3
P
1
V
8
158
C
H
3_R
E
F
0
159
C3
P
3
V
3
160
C3
G
N
D
161
C
H
3_R
E
F
1
162
C
H
3_R
E
F
2
163
C
H
3_F
B
0
164
C
H
3_F
B
1
165
C
23P
1V
8
166
C
23G
N
D
167
C
23P
3V
3
168
C
H
2_F
B
1
169
C
H
2_F
B
0
170
C
H
2_R
E
F
2
171
C
H
2_R
E
F
1
172
C2
G
N
D
173
C2
P
3
V
3
174
C
H
2_R
E
F
0
175
C2
P
1
V
8
176
U1002
ZXC
=
M800
GND
1
2
2
3
3
X1000
MB_MJ
C1000
10nF
C1010
12pF
C1009
12pF
L1000
BMB2A0300AN1
C1011
1U
C1012
1U
C1013
1U
C1014
1U
C1015
1U
C1016
1U
C1017
1U
C1018
1U
C1019
1U
C1020
1U
C1021
1U
C1022
1U
R1000
47R
C1036
10P
R1001
47R
C1037
10P
C1024
1U
C1025
1U
C1026
1U
C1027
1U
C1028
1U
C1029
1U
C1030
1U
C1031
1U
C1032
1U
C1033
1U
C1034
1U
C1035
U
DGND
R
1002
47R
C1041
10P
DGND
R1003
47R
C1042
10P
R1029
47R
C1083
3
C1081
33P
C1071
33P
R1
02
4
0R
DGND
R1027
47R
C1080
10P
C1082
33P
C1075
33P
C1001
1U
C1002
1U
C1003
1U
C1004
1U
C1005
1U
C1006
1U
C1007
1U
C1008
1U
C1112
4U7
C1323
1U
C1125
1U
C1126
1U
C1127
1U
C1113
4U7
C1114
1U
C1115
1U
C1116
1U
C1128
1U
C1129
1U
C1130
1U
C1131
1U
C1117
22N
C1118
22N
C1119
22N
C1132
1U
C1133
1U
C1134
1U
R1
01
7
2K
2
R
101
8
2K
2
R1020 0R
R1
00
7
2K
2
R
101
5
150
R
R
102
1
150
R
D1002
LED
R1030
1K
3V3Z
R1V8
C1V8
C3V3
C3V3
C1V8
C3V3
C1V8
L1001
742792662
3V3R1
C1043
4U7
C1046
4U7
C1040 4U7
DGND
1V8
3V3Z
DGND
3V3Z
C1023
220U/ 6V3
1V8
DGND
3V3Z
DGND
C1085
4U7
C1086
1U
C1087
1U
C1088
1U
C1089
1U
C1090
1U
C1091
1U
C1092
1U
C1093
1U
C1094
1U
C1102
4U7
C1103
1U
C1104
1U
C1105
1U
C1106
1U
C1107
1U
C1108
1U
C1109
1U
C1110
1U
3V3MU
C1098
10U/10V
C1096
100N
DGND
C1123
100N
DGND
C1084
100N(NC)
R1031
10k(NC)
3V3MU
DGND
PGCLK
PGDATA
1
2
3
4
5
CON1000
ICSP
R1034
68k
R1036
N
C1099
100N
D1001
3V6
3V3MU
DGND
Z_TXD
Z_RXD
Z_INT
C1121
100n X7R
R1052
NC
R1056
100R
R1051
10R
3V3z
DGND
1
2
3
4
CON1001
NC
DGND
3V3z
DGND
L1002
742792662
3V3Z
Z_TX
Z_RX
Z_RX
Z_TX
3V3MU
DGND
C1070
100n X7R
DGND
PGDATA
PGCLK
MCLR
MCLR
C1069
100n X7R
DGND
C1097
100N
10VA
-18.5V
R1049B
120R
R1049C
120R
R1049D
120R
J1002
9
J1003
9
J1005
6
J1006
MUTE
R1042B
120R
R1042C
120R
R1042D
5
R1049A
120R
ZM_MISO
R1039C
120R
R1039D
120R
R1039A
120R
R1039B
120R
ZM_CLKb
ZM_CSrd
SH/LD
1
CLK
2
E
3
F
4
G
5
H
6
QH
7
GN
D
8
QH
9
SER
10
A
11
B
12
C
13
D
14
CLK INH
15
VC
C
16
U1029
HC165
DGND
C1095
100n
DGND
3V3MU
3V3MU
R1048 100R
C1122
100N
3V3MU
DGND
DGND
ZM_CSb
ZM_CLKrd
2
J1008
MODE SEL
0----H D MOD E
1----SW MOD E
q1
1
q2
2
q3
3
q4
4
q5
5
q6
6
q7
7
gnd
8
q'h
9
/sclr
10
sck
11
rck
12
/g
13
ser
14
q0
15
vcc
16
U103 5
7 4HC595
DGND
C1135
100N
R1053B
100R
R1053D
100R
R1053C
100R
R1053A
100R
R1055B
100R
R1055C
100R
R1055D
100R
R1055A
100R
DGND
DGND
ADnDATA
=B7; '
=B5; '
=B,17
3V3MU
3V3MU
0 B0 8 7(
68 %B0 8 7(
68 %B(1
SUB_EN
SUB_MUTE
M_MUTE
' 2 B6&/
' 2 B6' $
R1044 100R
R1016
10K
C1077
4U7
3V3MU
DGND
TO PSU
T
O
DDFA
D
IG
I/O
TO
A
N
A
O
P
DEBUG
F R O M D IO
DO_SCL
DO_SDA
DO_I NT
DO_RST
' 2 B,17
' 2 B567
C1067
22N
C1076
22N
DGND
DGND
C1068
22N
DGND
C1079
22N
DGND
+ 3B0 8 7(
+ 3B' (7
HD
B
DET
HD_MUTE
,,6)6=D
,,6&/. =D
,,6' 2 =D
IIS CLKZ0a
IIS DOZ0a
IIS FSZ0a
IIS CLKZ1a
IIS DOZ1a
IIS FSZ1a
IIS CLKZ2a
IIS DOZ2a
IIS FSZ2a
IIS CLKZ3a
IIS DOZ3a
IIS FSZ3a
,,6)6=D
,,6&/. =D
,,6' 2 =D
,,6)6=D
,,6&/. =D
,,6' 2 =D
,,6)6=D
,,6&/. =D
,,6' 2=D
FROM DIO
65&0 8 7(
' 2 B* 3
DO_GP1
65&5' <
SRCMUTE
65&5' <
' * 1 '
C1V8
DGND
C1396
22N
C1397
22N
C1398
22N
R1V8
DGND
C1388
22N
C1389
22N
C1390
22N
C1391
22N
C1392
22N
C1393
22N
C1394
22N
C1395
22N
3V3R1
DGND
C1399
22N
C1400
22N
C1401
22N
C1402
22N
C1403
22N
C1404
22N
C1405
22N
C1406
22N
C1407
4U7
DGND
R
100
4
10K
R
100
5
10K
R1
00
6
10K
R
100
8
10K
R
101
1
10K
R
101
2
10K
R
101
3
10K
R
101
4
10K
C1072
100U/ 6V3
C1073
100U/ 6V3
C1078
100U/ 6V3
C1383
100U/ 6V3
C1387
100U/ 6V3
C1074
100U/ 6V3
DGND
R4V
R4V
DGND
DGND
R4V
DGND
R4V
R4V
DGND
R4V
DGND
R1119
0R
R1120
0R
A0
1
A1
2
A2
3
Vss
4
SDA
5
SCL
6
WP
7
Vdd
8
U1063
24LC16
DGND
C1261
100N
SCL
SDA
DGND
3V3MU
R1142
4.7K
R1143
4.7K
3V3MU
L1026
742792662
3V3Z
DGND
DGND
3V3R2
3V3R2
3V3R2
MCLR/VPP/RE3
1
RA0/AN0/C3INC
2
RA1/AN1/RPA1
3
RB0/AN2/RPB0
4
RB1/AN3/RPB1
5
RB2/SDA2/RPB2
6
RB3/SCL2/RPB3
7
VSS
8
OSC1/CLKIN/RA2/RPA2
9
OSC2/CLKOUT/RA3/RPA3
10
RB4/RPB4/SOSCI
11
RA4/T1CK/RPA4
12
VDD
13
RB5/RPB5/PGED3
14
RB6/RPB6/PGEC3
15
RB7/TDI/RPB7/PMD5
16
RB8/PMD4/TCK/SCL1
17
RB9/PMD3/SDA1
18
VSS
19
VCAP
20
RB10/PMD2/RPB10
21
RB11/PMD1/RPB11
22
RB12/PMD0/AN12
23
RB13/AN11/RPB13
24
RB14/SCK1/AN10/C3INB
25
RB15/SCK2/AN9/C3INA
26
AVSS
27
AVDD
28
U1030
PIC32MX150F128B
ZSPISS
ZSPIDA
ZSPICK
3V3MU
C1124
10U X5R
DGND
1a
1
3y
2
2a
3
gnd
4
2y
5
3a
6
1y
7
vcc
8
U1034
NC7NZ34
C1
321
10U X5R
DGND
3V3MU
Z_TXDa
Z_RXDa
R1023
100R
U2TX
U2RX
U1RX
U1TX
INT3
INT1
DGND
INT2
R1042A
120R
R1046
10K
Summary of Contents for M12
Page 1: ...NAD SERVICE MANUAL DIGITAL PREAMP DAC DIGITAL PREAMP DAC...
Page 6: ...6 Wiring diagram...
Page 29: ...1 AUDIO BOARD 29 PCB LAYOUT Top Layer Bottom Layer...
Page 30: ...2 MDC BOARD 30 Top Layer Bottom Layer...
Page 31: ...31 3 MDC DIGTAL IO BOARD Bottom Layer Top Layer...
Page 32: ...32 4 232_TRIG BOARD Bottom Layer Top Layer...
Page 33: ...33 5 BOOTLOAD BOARD Bottom Layer Top Layer 6 ENCODER BOARD Bottom Layer Top Layer...
Page 34: ...34 7 TOUCH KEY BOARD Bottom Layer Top Layer 8 LED BOARD Bottom Layer Top Layer...
Page 35: ...35 9 FPP BOARD Bottom Layer Top Layer...
Page 36: ...36 10 USB XMOS BOARD Bottom Layer Top Layer...
Page 37: ...37 11 PSU BOARD Top Layer Bottom Layer...
Page 38: ...38 12 ANA BOARD Top Layer Bottom Layer...
Page 39: ...39 13 PHONO BOARD Top Layer Bottom Layer...
Page 40: ...4 14 HTRM2 BOARD Top Layer Bottom Layer...
Page 68: ...68...
Page 70: ...70...