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JVC TH-C4 Service Manual page 28

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Mother section
TO CN272
(SHEET 9)
C N 3 7 2
Q G B 2 5 1 0 K 2 - 0 9
C N 2 7 4
Q G A 3 9 0 1 C 1 - 0 2
R 3 5 0 1
1 5 k
C 3 5 0 1
0 . 0 0 1 5 / 5 0
R 3 6 0 1
1 5 k
C 3 6 0 1
0 . 0 0 1 5 / 5 0
2-21
TO CN271
(SHEET 9)
C N 5 0 1
Q G B 2 5 1 0 K 2 - 1 4
R 3 7 4 2
1 0 0 K
R 3 7 4 1
4 7 K
Q 3 7 0 1
K R A 1 0 2 S - X
- 2 . 2 V
5 . 1 V
5 . 1 V
I C 3 0 3
R C 4 5 5 8 D - X
7 . 0 V
D 3 5 0 1
0 V
1 S S 1 3 3 - T 2
8
3
R 3 5 0 8
R 3 5 1 1
0 V
R 3 5 0 3
2 . 2 k
1
0 V
1 0 0
4 7 0
D 3 5 0 2
4
2
- 7 . 0 V
1 S S 1 3 3 - T 2
R 3 5 0 9
R 3 5 0 54 7 0 k
1 k
R 3 5 0 4
C 3 5 0 3
1 8 k
K T C 3 8 7 5 / Y G / - X
R 3 5 0 6 4 7
1 / 5 0
Q 3 5 0 2
R 3 5 1 3
0 V
0 V
R 3 5 1 2
1 0 k
- 2 . 2 V
1 0 K
- 2 . 2 V
Q 3 5 0 1
0 V
0 V
K T C 3 8 7 5 / Y G / - X
R 3 6 0 3
D 3 6 0 1
0 V
I C 3 0 3
1 S S 1 3 3 - T 2
5
R 3 6 0 8
R 3 6 1 1
0 V
2 . 2 k
7
0 V
1 0 0
D 3 6 0 2
R 3 6 0 4
4 7 0
1 8 k
6
R 3 6 0 5
1 S S 1 3 3 - T 2
C 3 6 0 4
1 5 0 k
R 1 7 1
!
4 7
O M F
2 W
D 5 2 1
M T Z J 6 . 8 C - T 2
R 5 4 0
4 . 7 K
D 5 0 1
1 S S 1 3 3 - T 2
K T A 1 5 0 4 / Y G / - X
C 5 0 1
1 2 . 0 V
4 . 7 / 5 0
D 5 0 4
R 5 0 2
1 S S 1 3 3 - T 2
1 0 0 k
1 1 . 9 V
0 V
R 5 0 1
R 5 0 8
4 . 7 k
1 1 . 8 V
0 V
0 V
0 . 8 V
0 V
0 V
Q 5 0 3
POWER CONTROL
&PROTECTOR
C 6 0 4
0 . 0 1 / 5 0
R 6 4 0 2 2 k
R 6 4 1
2 2 k
0 V
R 6 4 2
2 2 k
0 V
R 6 4 3
2 2 k
0 V
R 6 4 4
1 0 k
5 . 1 V
S M A R T
S E T U P
0 V
L i n
0 V
R i n
0 V
C i n
0 V
S L i n
R 6 8 5
1 k
1 / 4 W
0 V
S R i n
R 6 8 6
1 / 4 W
1 k
0 V
S W i n
2 . 7 V
V h i g h
D 6 0 1
1 S S 1 3 3 - T 2
* 3
C 6 0 6
X 6 0 1
1 0 / 5 0
Q A X 0 2 4 6 - 0 0 1 Z
8 M H z
Q 5 0 4
1 2 . 0 V
1 1 . 3 V
1 1 . 5 V
0 V
9 . 0 V
1 1 . 5 V
Q 5 1 7
K R C 1 0 4 S - X
0 V
Q 5 0 5
0 V
2 2 k
K R C 1 0 9 S - X
0 V
!
R 3 7 2 0
U N F
1 9 . 7 V
1 / 4 W
1 9 . 7 V
Q 3 7 0 2
K R A 1 0 2 S - X
0 V
1 9 . 7 V
0 V
0 V
* 4
P R O T E C T
S P R E L A Y
F A N O N
i F A N S T O P
I C 6 0 1
i P . O N
MN101C427NB
i P R O T E C T
P R E V c c
A C O N
C 6 0 5
0 . 0 1
C 6 0 1
1 0 0 / 1 6
1
2
3
C 6 0 2
1 0 0 0 p / 5 0
Q 5 2 3
K T C 3 8 7 5 / Y G / - X
- 1 9 . 9 V
- 1 9 . 6 V
4 . 9 V
R 5 3 6
1 0 K
4 . 9 V
- 1 9 . 4 V
Q 5 2 5
0 V
0 V
0 V
0 V
PROTECTOR
F A N M O T O R
Q A R 0 3 1 8 - 0 0 1
+
-
C N 3 7
Q 3 7 0 4
K T C 2 0 2 6 / Y /
1 0
1 9 . 7 V
0 V
0 V
C 3 7 1 5
1 0 0 / 1 6
D 3 7 0 7
1 S S 1 3 3 - T 2
2
R 6 2 8
2 2 k
C
Q G A
R 6 6 7
4 . 7 k
0 V
1 / 4 W
R 6 2 5
4 . 9 V
4 . 7 k
0 V
5 . 1 V
5 . 1 V
R 6 2
1 0
3 . 9 V
R 6 2
2 2
5 . 1 V
0 V
R 6 2
R 6 1 4
2 2 k
1 0 k
0 V
R 6 1 3
2 2 k
0 V
0 V
1 . 4 V
0
R
2
4 . 2 V
R 5 5 6
0 V
1 K
0 V
LOW VOLTEAGE DETE

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