NAD T 175, Service Manual, Page: 47 / 102

47
TRIGGER
A U TO
O F F
A U TO
O F F
O F F
O N
O F F
O N
S O F T C LIPPIN G S W ITC H TR IG G E R M O DE S W ITC H
IR IN
IR O U T 1 IR O U T 2
IR O U T 3
TR IG G E R IN
TR IG G E R O U T 1 TR IG G E R O U T 2
TR IG G E R O U T 3
Q 2 3 1 6 , Q 2 3 1 7 , Q 2 3 1 8 , Q 2 3 1 9
R 2 3 2 9 , R 2 3 4 8
R 2 3 3 1 , R 2 3 3 2 , R 2 3 4 7
N .I. F O R C E
M 2 3 0 7
M 2 3 0 6
DA B C O N N E C TO R F O R C E
DTC 1 1 4 E K A F O R C E
4 .7 k F O R C E
N .I. F O R C E
1 0 u /1 6 V F O R C E
LL4 1 4 8 F O R C E
LM 1 1 1 7 S 3 .3 V F O R C E
C 2 3 0 9
D2 3 0 7
U 2 3 0 4
C 2 3 1 0
0 .1 u /5 0 V F O R C E
4 7 u /1 6 V F O R C E
C 2 3 1 1
D2 3 0 8
N .I. F O R C E
1 0 u /1 6 V F O R C E
C 2 3 3 0
PIN 4 IS F R O M DA B M O DU LE PIN 1 6 (S 1 _ DO U T).
PIN 7 IS G O IN G TO DA B M O DU LE PIN 1 5 (S 1 _ DIN ).
N .I. F O R T1 7 5
1 k F O R C E
R 2 3 3 0
R 2 3 0 3
2 .2 k
R 2 3 0 2
N .I.
C 2 3 0 1
0 .0 1 u
E
C
B
Q 2 3 0 1
DTC 1 1 4 E K A
R 2 3 0 4
1 0 k
E C
B
Q 2 3 0 6
DTA 1 1 4 E K A
C 2 3 0 4
4 7 p
5 0 V
R 2 3 0 7
5 6 0
E
C
B
Q 2 3 0 7
DTC 1 1 4 E K A
E
C
B
Q 2 3 0 5
DTC 1 1 4 E K A
R 2 3 0 6
5 6 0
C 2 3 0 3
4 7 p
5 0 V
E C
B
Q 2 3 0 4
DTA 1 1 4 E K A
E
C
B
Q 2 3 0 8
DTC 1 1 4 E K A
C 2 3 0 5
0 .1 u
5 0 V
R 2 3 0 9
3 3 k
R 2 3 1 0
1 0 0 k
R 2 3 1 1
3 .3 1 W
C 2 3 0 6
0 .1 u
5 0 V
E C
B
Q 2 3 0 9
2 S B 1 2 7 5
R 2 3 1 2
3 .3 1 W
D2 3 0 1
LL4 1 4 8
D2 3 0 2
LL4 1 4 8
R 2 3 1 3
1 0 k
E
C
B
Q 2 3 1 0
DTC 1 1 4 E K A
E
C
B
Q 2 3 1 2
DTC 1 1 4 E K A
R 2 3 1 6
1 0 k
D2 3 0 4
LL4 1 4 8
D2 3 0 3
LL4 1 4 8
R 2 3 1 5
3 .3 1 W
E C
B
Q 2 3 1 1
2 S B 1 2 7 5
C 2 3 0 7
0 .1 u
5 0 V
R 2 3 1 4
3 .3 1 W
E
C
B
Q 2 3 1 4
DTC 1 1 4 E K A
R 2 3 1 9
1 0 k
D2 3 0 6
LL4 1 4 8
D2 3 0 5
LL4 1 4 8
R 2 3 1 8
3 .3 1 W
E C
B
Q 2 3 1 3
2 S B 1 2 7 5
C 2 3 0 8
0 .1 u
5 0 V
R 2 3 1 7
3 .3 1 W
E C
B
Q 2 3 0 2
DTA 1 1 4 E K A
C 2 3 0 2
4 7 p
5 0 V
R 2 3 0 5
5 6 0
E
C
B
Q 2 3 0 3
DTC 1 1 4 E K A
1
C 1 +
2
V +
3
C 1 -
4
C 2 +
5
C 2 -
6
V -
7
T2 _ O U T
8
R 2 _ IN
9
R 2 _ O U T
1 0
T2 _ IN
1 1
T1 _ IN
1 2
R I_ O U T
1 3
R 1 _ IN
1 4
T1 _ O U T
1 5
G N D
1 6
V C C
U 2 3 0 1
S T2 3 2 B DR
1
2
3
4
5
6
7
8
9
M 2 3 0 5
C 2 3 2 5
1 0 u
1 6 V
C 2 3 1 8
1 u
5 0 V
C 2 3 1 9
1 u
5 0 V
C 2 3 2 0
1 u
5 0 V
C 2 3 2 4
1 u
5 0 V
R 2 3 2 1
4 7
R 2 3 2 0
4 7
C 2 3 2 1
N .I.
5 0 V
C 2 3 2 2
N .I.
5 0 V
C 2 3 2 3
N .I.
5 0 V
2
4
6
S 2 3 0 2 -B
R 2 3 2 2
1 0 k
1
3
5
S 2 3 0 2 -A
1
3
5
S 2 3 0 1 -A
2
4
6
S 2 3 0 1 -B
98
7
65
4
3
21
1
2
3
4
5
6
7
8
9
M 2 3 0 6
N .I.
1
2
3
4
M 2 3 0 7
X M C O N N E C TO R
R 2 3 2 4
1 .8 k
R 2 3 2 3
1 0 k
1
1 A
2
1 B
3
1 Y
4
2 A
5
2 B
6
2 Y
7
G N D
8
3 Y
9
3 A
1 0
3 B
1 1
4 Y
1 2
4 A
1 3
4 B
1 4
V C C
U 2 3 0 3
S N 7 4 H C 8 6 DT
C 2 3 1 4
1 0 u
1 6 V
C 2 3 1 5
0 .1 u
5 0 V
R 2 3 4 1
1 5 k
C 2 3 1 6
1 0 u
1 6 V
C 2 3 1 7
1 0 0 p
5 0 V
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
J2 3 0 1 A
To C on n # 2 J2 3 0 1 B
To M C U J2 3 0 1 B (T1 7 5 )
R 2 3 4 0
N .I.
R 2 3 3 9
0
R 2 3 2 9
N .I.
E
C
B
Q 2 3 1 7
N .I.
E
C
B
Q 2 3 1 8
N .I.
R 2 3 3 0
N .I.
R 2 3 3 2
0 R 2 3 3 1
0
R 2 3 4 4
1 0 k
R 2 3 4 5
1 0 k R 2 3 4 6
1 0 k
E
C
B
Q 2 3 2 1
DTC 1 1 4 E K A
E
C
B
Q 2 3 2 0
DTA 1 1 4 E K A
1
G N D
2
IN 2
3
IN 3
4
E N
5
O U T5
6
O U T6
7
O U T7
8
O U T8
U 2 3 0 2
TPS 2 0 1 1 A
C 2 3 2 6
0 .1 u
5 0 V
C 2 3 2 7
0 .1 u
5 0 V
E
C
B
Q 2 3 1 6
N .I.
R 2 3 4 7
N .I.
R 2 3 4 8
N .I.
E
C
B
Q 2 3 1 9
N .I.
C 2 3 2 8
1 0 u
1 6 V
2 _ 1
2 _ 5
M 2 3 0 1 -A
1 _ 1
1 _ 5
S W
M 2 3 0 1 -B
2 _ 1
2 _ 5
M 2 3 0 2 -A
1 _ 1
1 _ 5
S W
M 2 3 0 2 -B
2 _ 1
2 _ 5
M 2 3 0 3 -A
1 _ 1
1 _ 5
S W
M 2 3 0 3 -B
2 _ 1
2 _ 5
M 2 3 0 4 -A
1 _ 1
1 _ 5
S W
M 2 3 0 4 -B
R 2 3 0 8
1 0 k
GN
D
O U T IN
U 2 3 0 4
N .I.
D2 3 0 7
N .I.
C 2 3 1 0
N .I.
5 0 V
C 2 3 1 1
N .I.
1 6 V
C 2 3 0 9
N .I.
1 6 V
1
2
3
4
5
6
7
8
9
1 0
D2 3 0 8
C M 1 2 1 3 -0 8 M S
R 2 3 5 1
1 0 k
C 2 3 2 9
1 0 u
1 6 V
C 2 3 3 0
N .I.
1 6 V
R 2 3 5 4
2 2
R 2 3 5 6
0 R 2 3 5 7
N .I.
R 2 3 5 8
1 0 0
R 2 3 5 9
1 0 0
L2 3 0 3
1 5 u H
X 2 3 5 1
N .I.
L2 3 0 2
1 5 u H
L2 3 0 1
1 5 u H
DG N D
DG N D
+ 5 V _ K
DG N D
DG N D
DG N D DG N D
DG N D
DG N D
+ 1 2 V _ D
DG N D
+ 5 V _ K
DG N D
+ 1 2 V _ D
DG N D DG N D
+ 1 2 V _ D
DG N D
DG N D
+ 1 2 V _ D
DG N D
+ 1 2 V _ D + 1 2 V _ D + 1 2 V _ D
DG N D
DG N D
DG N D DG N D
+ 5 V _ K
DG N D
C H G N D C H G N D C H G N D
+ 5 V _ K
DG N D DG N D
+ 5 V _ K
DA B _ IN
+ 5 V _ O U T
DG N D
+ 5 V _ O U T
DG N D
DG N D
IR _ R
IR _ O _ 2
IR _ O _ 1
TR IG _ IN
IR _ IN
TR IG _ O U T_ 1 TR IG _ O U T_ 2
TR IG _ O U T_ 3
DG N D
+ 5 V _ K
DG N D
DG N D DG N D
+ 1 2 V _ D+ 5 V _ K
DG N D
S C _ 1
S C _ 2
S _ C LIP_ IN D
A U TO /O F F
2 3 2 _ TX D
2 3 2 _ R X D
IR _ O _ 1
IR _ O _ 2
TR IG _ IN
TR IG _ O U T_ 1
TR IG _ O U T_ 2
TR IG _ O U T_ 3
+ 5 V _ K
DG N D
+ 5 V _ K
DA B _ TX D_ 5 V
DA B _ R X D_ 5 V
DA B _ IN
DG N D
+ 1 2 V _ D
+ 3 .3 V
DG N D
DG N D
+ 5 V _ K
DG N D
DG N D DG N D
DG N D
DG N D
+ 5 V _ K
DG N D
X M /DA B _ PW R
+ 5 V _ O U T
DG N D DG N D
DG N D
+ 3 .3 V
+ 5 V _ K
DG N D
+ 5 .3 V
+ 5 V _ O U T
DG N D
+ 5 V _ K + 3 .3 V
+ 5 V _ K
DG N D
DG N D
IR _ R _ M IX
IR _ R
DG N D
+ 5 .3 V
DG N D
+ 5 .3 V
+ 5 V _ V
DG N D
+ 5 V _ V
DA B _ TX D
DA B _ R X D
DG N D
C H G N D_ JA C K C H G N D_ JA C K C H G N D_ JA C K C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
DA B _ TX D
DA B _ R X D
+ 5 V _ V
C H G N D_ JA C K
C H G N D