NAD T 175, Service Manual, Page: 45 / 102

45
MAIN BOARD-1
A C 4 .8 V 2
A C 4 .8 V 1
A C 8 .8 V 4
A C 8 .8 V 3
A C 8 .8 V 2
A C 8 .8 V 1
A C 1 7 .6 V 2
A G N D
A C 1 7 .6 V 1
B R O W N
B R O W N
B LU E
B LU E
O R A N G E
O R A N G E
V IO LE T
G R E Y
V IO LE T
G R E E N
A DJ
O U T
IN
U 2 0 1 3
LM 3 1 7
R 2 0 4 8
1 k
1 /1 6 W
1 %
D2 0 0 8
0
- +
A C
A C
4
1
3
2
D2 0 0 3
R S 4 0 2 L
7 0 V 4 A
C 2 0 0 5
1 0 0 0 u
2 5 V
C 2 0 3 3
0 .1 u
5 0 V
C 2 0 3 2
2 2 0 0 u
2 5 V
IN
G N D
O U T
U 2 0 1 0
7 8 1 2
C 2 0 3 1
1 0 0 0 u
2 5 V
C 2 0 3 0
0 .1 u
5 0 V
- +
A C
A C
4
1
3
2
D2 0 0 7
R S 6 0 5
6 0 0 V 6 A
C 2 0 2 9
4 7 0 0 u
2 5 V
C 2 0 2 8
0 .1 u
5 0 V
C 2 0 2 7
0 .1 u
5 0 V
C 2 0 2 6
1 0 0 0 u
2 5 V
IN
G N D
O U T
U 2 0 0 9
7 8 0 5
C 2 0 2 5
2 2 0 0 u
2 5 V
C 2 0 2 4
0 .1 u
5 0 V
C 2 0 2 3
0 .1 u
5 0 V
C 2 0 2 2
2 2 0 0 u
2 5 V
IN
G N D
O U T
U 2 0 0 8
7 8 0 5
C 2 0 1 7
1 0 0 0 u
2 5 V
C 2 0 1 6
0 .1 u
5 0 V
C 2 0 2 1
0 .1 u
5 0 V
C 2 0 2 0
1 0 0 0 u
2 5 V
IN
G N D
O U T
U 2 0 0 7
7 8 0 5
C 2 0 1 9
2 2 0 0 u
2 5 V
C 2 0 1 8
0 .1 u
5 0 V
C 2 0 1 5
0 .1 u
5 0 V
R 2 0 1 9
3 3 k
1 /8 W
D2 0 0 4 A
N .I.
(O ption l, 1 N 4 0 0 7 )
C 2 0 0 7
3 3 0 u
5 0 V
C 2 0 1 0
0 .1 u
5 0 V
C 2 0 0 8
4 7 0 0 u
2 5 V
- +
A C
A C
4 1
3
2
D2 0 0 2
R S 6 0 5
6 0 0 V 6 A
C 2 0 0 6
0 .1 u
5 0 V
G N D
IN O U T
U 2 0 1 2
7 9 1 2
C 2 0 0 4
6 8 0 0 u
3 5 V
C 2 0 0 3
0 .1 u
5 0 V
C 2 0 0 2
0 .1 u
5 0 V
C 2 0 0 1
6 8 0 0 u
3 5 V
IN
G N D
O U T
U 2 0 1 1
7 8 1 2
C 2 0 1 1
1 0 0 0 u
2 5 V
C 2 0 0 9
0 .1 u
5 0 V
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
J2 0 0 7 A
TO C O N N # 1 J2 0 0 7 B
1
2
3
4
J8 0 0 2 B
TO S TA N DB Y J8 0 0 2 A
R 2 0 2 4
0 .2 2 1 /2 W _ (M O )
R 2 0 2 6
0 .2 2 1 /2 W _ (M O )
R 2 0 2 9
0 .2 2 1 /2 W _ (M O )
R 2 0 3 0
0 .2 2 1 /2 W _ (M O )
C 2 0 3 4
0 .1 u _ (M )
6 3 V
C 2 0 3 5
0 .1 u _ (M )
6 3 V
C 2 0 3 6
0 .1 u _ (M )
6 3 V
C 2 0 3 7
0 .1 u _ (M )
6 3 V
C 2 0 3 8
0 .1 u _ (M )
6 3 V
R 2 0 2 5
0 .2 2 1 /2 W _ (M O )
R 2 0 2 7
0 .2 2 1 /2 W _ (M O )
R 2 0 2 8
0 .2 2 1 /2 W _ (M O )
1
2
3
4
5
6
7
8
9
1 0
J2 0 1 5 A
to X 'form er
JP2 0 0 1
Ju m per B ar
D2 0 0 4
G S 1 G
D2 0 0 5
G S 1 G
D2 0 0 5 A
N .I.
(O ption l, 1 N 4 0 0 7 )
R 2 0 5 3
0 .2 2 1 /2 W _ (M O )
R 2 0 4 9
3 .3 k
1 /1 6 W
1 %
+ 5 .3 V
DG N D
+ 1 5 V
A G N D
-1 2 V _ A
+ 1 2 V _ A
+ 3 9 V
+ 5 V _ K
+ 1 2 V _ D
+ 5 V _ V
+ 8 V _ V
+ 5 V _ DS P
DG N D
DG N D
DG N D
DG N D
+5
V
_
D
S
P
DG
N
D
+8
V
_
V
+5
V
_
V
DG
N
D
+
12V
_A
AG
N
D
-
12V
_A
+5
V
_
D
S
P
+5
V
_
D
S
P
+5
V
_
D
S
P
DG
N
D
DG
N
D
DG
N
D
+8
V
_
V
+8
V
_
V
+8
V
_
V
+5
V
_
V
DG
N
D
DG
N
D
DG
N
D
+
12V
_A
+
12V
_A
AG
N
D
AG
N
D
AG
N
D
-
12V
_A
-
12V
_A
A C 4 .8 V 2 A C 4 .8 V 1 + 5 V _ K + 3 9 V + 1 2 V _ D
+ 1 5 V
+ 1 3 V
DG N D
+ 1 3 V
PO W E R _ O N
+ 1 2 .3 V
DG N D
PO W E R _ O N
A C 4 .8 V 2
A C 8 .8 V 4
A C 1 7 .6 V 2
A C 1 7 .6 V 1
A C 8 .8 V 4
A C 8 .8 V 2
A C 8 .8 V 2
A C 2 9 V
A G N D
A C 8 .8 V 1
A C 8 .8 V 3
A C 4 .8 V 1
A C 8 .8 V 4
A C 8 .8 V 3
A C 8 .8 V 2
A C 8 .8 V 1
A C 1 7 .6 V 2
A C 1 7 .6 V 1
DG N D
A G N D
A G N D