3.MDC DIGTAL IO BOARD
18
IPS0/RX4
NC
DIF0/RX5
TEST2
DIF1/RX6
VSS1
DIF2/RX7
IPS1/IIC
PSN
XTL0
XTL1
VIN/GP0
TV
D
D
GP
1
TX
0
/G
P
2
TX
1
/G
P
3
BO
U
T
/G
P
4
CO
U
T
/G
P
5
UO
UT
/G
P
6
VO
U
T
/G
P
7
DV
DD
V
SS2
MC
K
O
1
L
RCK
SDTO
BICK
MCKO2
DAUX
XTO
XTI
PDN
CM0/CDTO/CAD1
CM1/CDTI/SDA
OCKS1/CCLK/SCL
OCKS0/CSN/CAD0
INT0
36
IN
T
1
AVD
D
R
VC
O
M
V
SS3
RX
0
NC
RX
1
TE
S
T
1
RX
2
V
SS4
RX
3
U4003
AK4118
R4
0
0
7
10K
C
40
1
5
470
n
X
7
R
3V3A
C
40
1
3
10
U/
1
0V
C4030
10U/ 10V
C
40
1
2
100
n
X
7
R
L4000
742792662(WE)
C4006
330U/ 6V3 HCN
3V3A
DGND
L4003
742792662
DGND
DGND
TPG4000
C4027
10U/ 10V
C4029
100n X7R
DGND
C4025
100n X7R
DGND
DGND
SP_BC
.
C4021
100n X7R
DGND
R4018
10K
3V3D
R4032
33R
R4024
33R
R4026
33R
R4029
33R
R4013
NC
R4015
NC
3V3D
SP_INTa
TPG4002
TPG4003
DGND
R4020
10K
3V3A
DGND
DGND
SP_GP0a
RX0
R4031
33R( NC)
C4014
100n X7R
DGN
'
TPG4001
DGND
R4019
1K
C4019
100n X7R
DGND
DGND
R4021
10K
R4023
10K
J4002
XLR3F
R4
0
3
9
110
R
aes/ ebu
C40330R
C4028
1N
DGND
D4000
1SS352
D4001
1SS352
C40340R
C4032
220n X7R
1
3
5
4
6
2
T4002
SPDIF 1: 1
L4001
FB
C4022
10U/10V
R4033
100R
DGND
DGND
C402
100N X7R
1IN+
1
1OUT
2
2OUT
3
GND
4
2IN-
5
2IN+
6
1IN-
7
VCC
8
U4005
SN75157
5VA
RX6
DGND
C4020
100n X7R
DGND
24
25
26
27
28
29
30
31
32
33
34
35
37
38
39
40
41
42
43
44
45
46
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
36
CON4000
W2M-046P
12V5a
12V5a
DGND
DGND
PCLK0
PMOSI0
PMISO0
PS0a
IISCLK0a
IISDO0a
AUMUT0
IISFS0a
MCLK0a
DETS0
PSTB0
C4031
100N
DGND
3V3C
R4002
NC
R4000
NC
D
JQG
D
\
YFF
\
U4000
NC7WZ14(NC)
dgnd
C4000
100N( NC)
dgnd
3V3C
1G
1
A1
2
1Y1
18
A2
4
1Y2
16
A3
6
1Y3
14
A4
8
1Y4
12
VC
C
20
GN
D
10
2G
19
B1
11
2Y1
9
B2
13
2Y2
7
B3
15
2Y3
5
B4
17
2Y4
3
U4004
74LCX244
DGND
C4016
100n
DGND
R4017B
5
R4017C
5
R4017D
5
R4017A
5
R4034
6K8
DGND
SCL
SDA
R4022
10k
R4
0
2
8
10k
D
JQG
D
\
YFF
\
U4001 NC7WV17
C4009
22N
DGND
D
JQG
D
\
YFF
\
U4002
NC7WV17
C40
4
22N
DGND
R4
0
12
NC
C4011
100n X7R
DGND
C4005
4U7
3V3C
3V3C
3V3C
DGND
3V3C
DGND
3V3C
3V3D
DGND
R4009
NC
R4010
NC
SP_CLK
SP_MOSI
SP_CS
SP_MISO
R4011
NC
DGND
DGND
R4038
33R
R4036
33R
SP_GP2a
R4025B
5
R4025C
5
R4025D
5
R4025A
5
SP_INT
SP_GP2
SP_GP0
R4003
82R
R4005
82R
R4006
82R
R4008
82R
M DC C A R D C O DE
D ET _ R ES
5 1 0 R
1 .1 K
1 .8 K
2 .4 K
4 .3 K
5 .6 K
3 .3 K
8 .2 K
1 1 K
1 6 K
1 3 K
2 0 K
2 7 K
3 6 K
5 1 K
8 2 K
1 6 0 K
6 .8 K
R ESER VE
H D M I
U SB 1.0
A N A L O G
U SB 2.0
R ESER VE
R ESER VE
D IG ITA L IO
R ESER VE
R ESER VE
B lu e O S
R ESER VE
R ESER VE
R ESER VE
R ESER VE
R ESER VE
R ESER VE
R ESER VE
C A R D
R4037
33R
SP_GP1
DGND
Vin
AD
J
Vout
U4006
ZLDO1117
C4035
4U7
C4042
4U7
R4042
453
R
R4040
150
R
C4036
100N
L4004
FB
C4041
4U7
12V5a
3V3D
C4039
220U/ 25V
C4040
220U/ 10V
DGND
Vin
AD
J
Vout
U4007
ZLDO1117
C404
4U7
R4043
249
R
R4041
150
R
C4038
10U/10V
3V3D
C4037
10U/10V
L4005
742792662
5VA
R4035
10 0 R
3V3D
3V3D
C4044
10U/10V
L4002
742792662
3V3D
R4045
10R
R4046
10R
C
401
0
2.
2U
X
5R
DGND
DGND
C4018
100n
R4016
10 0 R
C4017
4U7
R4014
4 R7
C4008
0N NPO
R4
0
0
4
75
R
DGND
RX1
INPUT2
C4007
220n X7R
RX4
3V3A
C4002
10N NPO
R4
0
0
1
75
R
DGND
INPUT1
C4001
220n X7R
dgnd
C4026
100n
R4030
10 0 R
C4023
U7
R4027
4 R7
RX5
3V3A
VCC
1
GND
2
DATA
3
OP4000
GP1FRX
VCC
1
GND
2
DATA
3
OP4001
GP1FRX
C4003
1N
DGND
RX3
1
3
5
4
6
2
T4001
SPDIF 1: 1
1
3
5
4
6
2
T4000
SPDIF 1: 1
DGND
J4000A
J4001A
RX4
RX5
RX3
RX1
3V3D
3V3D
C4045
100n X7R
DGND
R4044
100
3V3D
RX6
3V3D
DGND
D9005
TPD2E009
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...