NAD M27, Service Manual

Page: 18 / 64

4 .NC400 OEM BOARD (4/4)
1 8
-HVPS
+HVPS
+ISENSE
-ISENSE
T32
BCV62B
T37
BCV61B
D21
12V
D23
12V
D22
BAS316
D24
BAS316
T33
MMBT5401
T35
MMBT5551
R113
150k
R131
150k
R112
82R
R135
82R
R111
390R
R137
330R
C59
10n
C68
10n
R114
10k
R125
10k
R129
10k
R126
10k
GND
C74
470n
VDR
-VB
D27
5V6
R148
68R
T40
BD139
1
J12
Mounting
Hole
GND
T41
BC846BW
GND
R149
18k
R150
13k
VDR_EXT
T39
BCP56
D26
BAS316
R146
47k
R147
47k
D25
BAS316
C72
22u
C73
22u
GND
+Vop
-Vop
ENABLE
SCCP
SDA/READY
SCL/nFATAL
A0/nAMPON
A1/OPTION
VSW
VOUT
R142
1k2
R119
8k2
R143
1k8
R120
2k2
GND
RA4/AN3/T1G/OSC2/CLKOUT
3
VDD 1
RA5/T1CKI/OSC1/CLKIN
2
RA3/MCLR/VPP
4
RC5/CCP1/P1A 5
RC4/C2OUT/P1B
6
RC3/AN7/C12IN3-/P1C
7
RC6/AN8/SS 8
RC7/AN9/SDO
9
RB7/TX/CK
10
RB6/SCK/SCL
11
RB5/AN11/RX/DT
12
RB4/AN10/SDI/SDA
13
RC2/AN6/C12IN2-/P1D
14
RC1/AN5/C12IN-
15
RC0/AN4/C2IN+
16
RA2/AN2/T0CKI/INT/C1OUT
17
RA1/AN1/C12IN0-/VREF/ICSPCLK
18
RA0/AN0/C1IN+/ICSPDAT/ULPWU
19
Vss
20
RA4/AN3/T1 G/OSC2/CLK OU T
V DD
RA5/T1 CKI/ OSC1/CLKIN
RA3/M CLR/ V PP
RC5/CCP1/P1A
RC4/C2OU T/P1 B
RC3/AN7 /C12IN3- /P1C
RC6/AN8/S S
RC7/AN9 /SDO
RB7/TX/CK RB6/SCK/SCL
RB5 /AN11 /RX /DT
RB4/AN10/SDI/SD A
RC2/AN6 /C12IN2- /P1D
RC1/AN5/ C12IN -
RC0/AN4/ C2IN +
RA2/AN2/T0 CKI/INT/ C1OU T
RA1/AN1/ C12IN0-/ V REF/I CSPCLK
RA0/AN0/ C1IN+/I CSPDAT/ ULP WU
V ss
U2
PIC16F690
GND
1
2
3
4
5
J11
CON_1x5MV
GND
C70
100p
C71
100p
3VPIC
R134
1M
C69
1u
GND
R138
100k
R116
27k
R139
27k
+VB
-VB
-VB
C63
2u2
T31
BC846BW
D20
3V9
C62
2u2
GND
R109
330R
R106
330R
+Vop
C61
2u2
C60
2u2
R123
27k
VOUT
R133
390k
R130
390k
R117
10k
R140
10k
R132
10k C65
100p
C64
10n
C66
10n
GND
R122
1k8
T36
BC846BW
R136
4k7
3VPIC
R115
1k
T34
BC846BW
GND
SCCPIND
R110
2k2
R124
27k
R118
10k
R141
10k
LSENSE-
IOUT
5
6
7
U1B
NE5532
C56
1n5
R105
2k4
C55
10u
R104
10M
R107
2k4
C57
10u
C58
1n5
R108
10M
GND
D28
10V
T42
BC846BW
R152
10k
R153
10k
+Vop
GND
CLIPPOS
CLIPNEG
R127
10k
CLIPIND
R121
1k
T38
BC846BW
R151
12k
R145
12k
No
t
plac
ed
R111 NC
R137 NC
NC
Reset