1.AUDIO BOARD (3/4)
13
C1232
100n
R1123
4R7
RX1
3V3A
VCC
GND
DATA
OP1000
GP1FRX
DGND
R1
1
4
0
75
R
RX2
INPUT2
C1259
220N X 7R
C1251
10N NPO
C1248
10U/ 10V
L1020
742792662(WE)
C1238
100N
C1246
330U/ 6V3
DGND
DGND
3V3Z
C1269
1N
C1268
4U7
TR
1
GND
2
OUT
3
VDD
4
U1065
24.576M
DGND
R115 2
47R
3V3Z
DGND
DGND
C1234
10U/ 10V
DGND
1
3
4
2
T1001
SPDIF 1: 1 B
C1258
1N
DGND
DOA_SD
DOA_CK
DOA_LR
' 2 B6&/
' 2 B6' $
65&0 8 7(
T
O
DDFA
M
O
D
DO_SCL
DO_SDA
DO_I NT
DO_RST
' 2 B,17
' 2 B567
' 2 B* 3
DGND
DGND
Z _TXD
Z _I NT
Z _RXD
C1235
30p
T
O
DDFA
M
O
D
DEBUG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
J1009
TO AMP BOARD
C1221
22n
C1100
22n
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1031
NC7WV17
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1051
NC7WV17
C1120
4U7
L1003
742792662(WE)
R10 5 9
4 7 R
R10 4 5
4 7 R
R10 4 0
4 7 R
R10 3 5
4 7 R
IIS CLK Z0
IIS DOZ0
IIS FSZ0
,,6)6=D
,,6&/. =D
,,6 ' 2 =D
IIS CLK Z1
IIS DOZ1
IIS FSZ1
IIS CLK Z2
IIS DOZ2
IIS FSZ2
C1260
100nF
3V3Z
DGND
C1382
100nF
C1386
10U/10V
DGND
3V3Z
DGND
R
1
127
10
0R
DGND
C1384
100nF
DGND
DGND
C1231
100nF
DGND
DO_TX+
3V 3Z
C
1
244
NC
C1242
100nF
R1117
10
0R
R
4
014
1K
DGND
R1116
10R
DO_GP1
SRCMCLK
C1264
100N
DGND
3V3A
C1
24
3
10U
/
10V
C1255
10U/ 10V
C1379
10U/ 10V
C1380
10U/ 10V
C1266
100N
C1262
100N
C1257
100N
C1245
100N
C1247
10N NPO
C1254
100N
TPG1001
C1267
10N NPO
DGND
C1381
100N
C1263
100N
L1021
742792662(WE) C1385
10U/10V
MU
T
E
14
RX1+
1
RX1-
2
RX2+
3
RX2-
4
RX3+
5
RX3-
6
RX4+
7
RX4-
8
VCC
9
AGND
10
LOCK
11
RXCKO
12
RX
CK
I
13
RD
Y
15
DG
ND1
16
V
DD1
8
17
CP
M
18
CS
19
CCL
K
20
CD
IN
21
CD
O
U
T
22
IN
T
23
RS
T
24
MCLK
25
GPO1
26
GPO2
27
GPO3
28
GPO4
29
DGND2
30
TX-
31
TX+
32
VDD33
33
AESOUT
34
BLS
35
SYNC
36
BC
K
A
37
L
RCK
A
38
SD
IN
A
39
SD
O
U
T
A
40
NC
41
VI
O
42
DG
ND3
43
BG
N
D
44
SD
O
U
T
B
45
SD
IN
B
46
L
RCK
B
47
BC
K
B
48
U506
SRC4382
DGND
C1252
10N NPO
TPG1002
C1265
100n
C1256
10N NPO
SRCRDY
SRCMUTE
3V3Z
D1000
LED
R1121
100R
R1122
100R
R1118
100R
1V8SP
65&5' <
R11
0
4
47
R
R11
0
5
47
R
R11
0
6
47
R
a1
1
gnd
2
a2
3
y2
4
vcc
5
y1
6
U1054
NC7WV17
C1224
22n
R110 1
4 7 R
R10 9 8
4 7 R
C1222
22n
C1101
22n
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1032
NC7WV17
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1052
NC7WV17
C1136
4U7
L1017
742792662(WE)
R10 6 0
4 7 R
R10 4 7
4 7 R
R10 4 1
4 7 R
R10 3 7
4 7 R
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1055
NC7WV17
C1225
22n
R110 2
4 7 R
R10 9 9
4 7 R
C1223
22n
C1111
22n
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1037
NC7WV17
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1053
NC7WV17
C1217
4U7
L1018
742792662(WE)
R10 9 7
4 7 R
R10 5 8
4 7 R
R10 4 3
4 7 R
R10 3 8
4 7 R
a1
1
gnd
2
a2
3
y 2
4
vcc
5
y 1
6
U1056
NC7WV17
C1226
22n
R110 3
4 7 R
R110 0
4 7 R
IIS CLKZ0
IIS DOZ0
IIS FSZ0
IIS CLK Z1
IIS DOZ1
IIS FSZ1
IIS CLK Z2
IIS DOZ2
IIS FSZ2
IIS CLK Z0a
IIS DOZ0a
IIS FSZ0a
IIS CLK Z0b
IIS DOZ0b
IIS FSZ0b
IIS CLK Z1a
IIS DOZ1a
IIS FSZ1a
IIS CLK Z1b
IIS DOZ1b
IIS FSZ1b
IIS CLK Z2a
IIS DOZ2a
IIS FSZ2a
IIS CLK Z2b
IIS DOZ2b
IIS FSZ2b
1O
E
1
S1
2
1B
4
3
1B
3
4
1B
2
5
1B
1
6
1A
7
GN
D
8
2A
9
2B
1
10
2B
2
11
2B
3
12
2B
4
13
S0
14
2Q
E
15
VC
C
16
U1057
SN74CB3Q3253
3V3Z
C1228
22n
C1227
4U7
DGND
TBD
IIS CLK Z3b
IIS FSZ3b
IIS DOZ3b
DGND
1
2
3
4
5
6
7
8
9
10
11
12
J1010
3X2X2.54
R1107
75R
C1239
33P
R1108
75R
C1233
100P
R1109
75R
C1240
33P
R1110
75R
C1241
33P
DGND
L1019
742792662(WE)
C1230
10u
C1229
22N
DGND DGND
5V3D
DGND
1O
E
1
S1
2
1B
4
3
1B
3
4
1B
2
5
1B
1
6
1A
7
GN
D
8
2A
9
2B
1
10
2B
2
11
2B
3
12
2B
4
13
S0
14
2Q
E
15
VC
C
16
U1058
SN74CB3Q3253
3V3Z
C1237
22n
C1236
4U7
DGND
DGND
DO_S0
DO_S1
TPG1000
IIS CLK Z0b
IIS CLK Z1b
IIS CLK Z2b
IIS CLK Z3b
IIS DOZ0b
IIS DOZ1b
IIS DOZ2b
IIS DOZ3b
IIS FSZ0b
IIS FSZ1b
IIS FSZ2b
IIS FSZ3b
IIS CLK Z0a
IIS DOZ0a
IIS FSZ0a
IIS CLK Z1a
IIS DOZ1a
IIS FSZ1a
IIS CLK Z2a
IIS DOZ2a
IIS FSZ2a
IIS CLK Z3a
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
T
O
DDFA
M
O
D
1
2
3
4
J1012
TO RS232 BOA RD
R1112
54R9
R1113
54R9
5V3D
R1111
10R
DO_TX-
C1250
10U/10V
C1249
10U/10V
C1253
100N
DGND
R1114
120R
R1115
120R
DGND
DGND
DGND
1V8
DGND
DGND
DGND
1
2
J1011
FROM COAX
3V3Z
3V3Z
3V3Z
DGND
C1429
10U
L1025
742792662(WE)
DGND
R1019
10R
=B7; '
=B5; '
=B,17
J00
copper
R1032
NC
R1033
4K7
3V3Z
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...