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12. HTRM2 BOARD
2
9 &&B9
PE6
1
PE7
2
UVCC
3
D-
4
D+
5
UGND
6
UCAP
7
VBUS
8
PE3
9
PB0
10
PB1
11
PB2
12
PB3
13
PB4
14
PB5
15
PB6
16
PB
7
17
PE
4
18
PE
5
19
RE
S
E
T
20
VC
C
21
GN
D
22
XT
AL
2
23
XT
AL
1
24
PD
0
25
PD
1
26
PD
2
27
PD
3
28
PD
4
29
PD
5
30
PD
6
31
PD
7
32
PE0
33
PE1
34
PCO
35
PC1
36
PC2
37
PC3
38
PC4
39
PC5
40
PC6
41
PC7
42
PE2
43
PA7
44
PA6
45
PA5
46
PA4
47
PA3
48
PA2
49
PA1
50
PA0
51
VC
C
52
GN
D
53
PF7
54
PF6
55
PF5
56
PF4
57
PF3
58
PF2
59
PF1
60
PF0
61
AR
E
F
62
GN
D
63
AVC
C
64
A T 90U SB 64-QFP
U100
AT90USB64-QFN
+VBUS
1
D-
2
D+
3
ID
4
GND
5
SHIELD
6
J100
mini usb_B
D110
LED_BLUE
2
1
D116
L
E
D_
B
L
UE
2
1
D117
L
E
D_
B
L
UE
2
D118
L
E
D_
B
L
UE
2
1
D119
LE
D
_
B
LU
E
2
1
D120
L
E
D_
B
L
UE
2
1
D121
L
E
D_
B
L
UE
2
1
D122
LE
D
_
B
LU
E
2
1
D123
L
E
D_
B
L
UE
2
1
D124
LE
D
_
B
LU
E
2
1
D125
L
E
D_
B
L
UE
2
1
D126
L
E
D_
B
L
UE
2
1
D127
L
E
D_
B
L
UE
2
1
D128
L
E
D_
B
L
UE
2
1
D129
LE
D
_
B
LU
E
2
1
D130
L
E
D_
B
L
UE
2
1
D139
L
E
D_
B
L
UE
2
1
D141
LE
D
_
B
LU
E
2
1
D142
LE
D
_
B
LU
E
R114
100K
R134
100K
R128
10K
R133
10K
R102
1M
R113
1M
R118
1R
R115
2.2M
R100
22R
R101
22R
SI
1
SCK
2
RESET
3
CS
4
WP
5
VCC
6
GND
7
SO
8
U101
AT45DB011B-SC
R111
330R
R112
330R
R116
0R
R117
330R
R119
330R
R121
330R
R126
47K
R120
4.7K
R127
680R
R124
820K
R125
82K
R130
100R
R131
100R
R132
100R
C113
100N
C102
22PF
C103
22PF
C100
100N
&
1
&
1
&
1
C107
100N
C108
100N
C109
100N
C110
100N
C111
100N
C114
100N
C115
4.7N
2
1
E100
NC
2
1
D115
1N4148
2
1
D140
1N4148
2
1
D111
DIODE
Y100
Crystal_8MHZ
2
1
D113
LED_BLUE
R129
2
S1
vibroswitch
2
S2
vibroswitch
C101
22uF/
6V
C112
22uF/16V
MISO
VCC
SCK
MOSI
RST
GND
CS
TXD
RXD
H102
HEADER
TC
K
1
TD
O
3
TM
S
5
N/
C
7
TD
I
9
GN
D
2
VT
R
E
F
4
NS
R
S
T
6
NT
R
S
T
8
GN
D
10
H101
JTAG1
VCC_3V3
VCC_3V3
GND
VCC_3V3
VCC_3V3
UART_TXD
UART_RXD
VCC_3V3
6V_BATTERY
RE
S
E
T
6V_BATTERY
VCC_3V3
VCC_3V3
M
A
T
RI
X
_
IN
T
E
RRU
P
T
IR
UA
R
T
_
R
X
D
UA
R
T
_
T
X
D
DE
V
IV
E
_
L
E
D_
5
DE
V
IV
E
_
L
E
D_
6
DE
V
IV
E
_
L
E
D_
7
IR
2
1
3
4
D138
APTB1615ESGC
VCC_3V3
2
1
K55
AMP
2
1
K54
TV
2
1
K57
CUSTOM
2
1
K58
DVD
2
1
K60
VCR
2
1
K61
TUNER
2
1
K56
CAB/SAT
2
1
K59
MACRO
2
1
K65
#0
2
1
K66
#1
2
1
K64
#2
2
1
K63
#3
2
1
K69
#4
2
1
K68
#5
2
1
K67
#6
2
1
K62
CD
2
1
K70
#7
2
1
K72
#8
2
1
K74
#9
2
1
K71
ON
2
1
K73
OFF
2
1
K77
AV PRESET
2
1
K75
SPK A
2
1
K76
SPK B
2
1
K78
ENTER
2
1
K82
CUR DW
2
1
K81
+10
2
1
K79
MUTE
2
1
K80
CH UP
2
1
K83
TEST
2
1
K85
CH DW
2
1
K86
TITLE
2
1
K84
SURR UP
2
1
K87
SURR MODE
2
1
K90
OPEN
2
1
K89
STOP
2
1
K88
TUNE DW
2
1
K92
VOL UP
2
1
K93
VOL DW
2
1
K91
CUR LT
2
1
K94
RETURN
K98
MENU
K95
PLAY
2
1
K96
PAUSE
2
1
K97
TUNE UP
2
1
K102
CUR UP
2
1
K101
C ENT UP
2
1
K99
CUR RT
2
1
K100
CENT DW
2
1
K104
SUB DW
2
1
K103
DISPLA
2
1
K106
CURR DW
2
1
K105
SUB UP
DEVICE_LED_0
DEVICE_LED_1
DEVICE_LED_2
DEVICE_LED_3
DEVICE_LED_4
MATRIX 00
MATRIX 01
MATRIX 02
MATRIX 03
MATRIX 04
MATRIX 05
MATRIX 06
MATRIX 00
MATRIX 01
MATRIX 02
MATRIX 03
MATRIX 04
MATRIX 05
MATRIX 06
MA
T
R
IX
0
8
MA
T
R
IX
0
9
MA
T
R
IX
1
0
MA
T
R
IX
1
1
MA
T
R
IX
1
2
MA
T
R
IX
1
3
MA
T
R
IX
1
4
MA
T
R
IX
1
5
MA
T
R
IX
1
2
MA
T
R
IX
1
4
MA
T
R
IX
1
3
MA
T
R
IX
1
5
VCC_3V3
RESET
2
1
D131
1N4148
2
1
D132 1N4148
2
1
D133 1N4148
2
1
D134 1N4148
2
1
D135
1N4148
2
1
D136 1N4148
2
1
D137
1N4148
MATRIX _INTERRUPT
MA
T
R
IX
1
0
MA
T
R
IX
1
1
MA
T
R
IX
1
2
MA
T
R
IX
1
3
MA
T
R
IX
1
4
MA
T
R
IX
1
5
MA
T
R
IX
0
8
MA
T
R
IX
0
9
VCC_3V3 6V_BATTERY
2
1
D100
LE
D
_
R
E
D
2
1
D101
LE
D
_
R
E
D
2
1
D102
LE
D
_
R
E
D
2
1
D103
LE
D
_
R
E
D
2
1
D104
LE
D
B
RE
D
2
1
D105
LE
D
_
R
E
D
2
1
D106
LE
D
_
R
E
D
2
1
D107
LE
D
_
R
E
D
R103
0R
R104
0R
R105
0R
R106
0R
R107
0R
R108
0R
R109
0R
R110
0R
VCC_3V3
D
E
V
IC
E
_L
E
D
_0
D
E
V
IC
E
_L
E
D
_1
D
E
V
IC
E
_L
E
D
_2
D
E
V
IC
E
_L
E
D
_3
D
E
V
IC
E
_L
E
D
_4
D
E
V
IC
E
_L
E
D
_5
D
E
V
IC
E
_L
E
D
_6
D
E
V
IC
E
_L
E
D
_7
6V_BATTERY
VCC_3V3
IR
B100
1.5V
B101
1.5V
B102
1.5V
B103
1.5V
VCC_3V3
6V_BATTERY
2
1
E101
NC
Q103
S8050H
Q100
S8050H
Q104
S8050H
Q102
S8050H
Q101
S8050H
LE
D
_
0
LE
D
_
1
LE
D
_
2
LE
D
_
3
LE
D
_
4
LE
D
_
5
LE
D
_
6
LE
D
_
7
LED_0
LED_1
LED_2
LED_3
LED_4
LE
D
_
5
LE
D
_
6
LE
D
_
7
RESET
RE
S
E
T
GND
1
IN
2
OUT
3
NC
4
NC
5
U102
TLV70433
G
S
D
Q50
APM2301
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...