Main 7/7 - Yamaha imx644 Service Manual
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I
MAIN 7/7
C N 2
Q G A 3 9 0 1 C 1 - 0 4
+ 2 4 V
4
+ 2 4 V
3
to POWER SUPPLY UNIT
CN2
G N D
2
G N D
1
D - G N D
H
G
T H 1 1 0 2
N A D 0 0 2 3 - 0 1 0 X
1
2
R 1 1 0 2
0
M G
O P E N
K 1 1 0 1
C 1 1 2 2
N Q R 0 3 5 1 - 0 0 2 X
O P E N
0 . 0 0 1 u
M G
R 1 1 2 1
1 5 k
.
C 1 1 2 1
R 1 1 0 5
R 1 1 0 7
0 . 0 0 4 7 u
.
2 7 k
1 0 k
M G
T H 1 1 0 1
M G
C 1 0 0 1
NAD0039-001X
R 1 1 0 3
2 2 0 / 3 5
1
2
1
2
0
.
R 1 1 0 8
R 1 1 0 6
M G
1 0 k
L 1 1 0 1
1 8 k
R 1 0 0 1
M G
1 2 k
N Q L 5 2 E M - 6 R 8 X
M G
1 u
M G
E
1
C 1 1 0 3
2
K 1 1 0 2
R 1 0 0 2
1 . 8 k
1
.
N Q R 0 3 5 1 - 0 0 2 X
C 1 1 0 1
C 1 1 0 2
M G
O P E N
1 6 1 5 1 4 1 3 1 2 1 1 1 0
2 2 0 / 3 5
2
0 . 0 6 8 u
E
.
C 1 1 0 4
C 1 1 1 0
I C 1 1 0
1 u
0 . 1 u
B A 9 7 4 3 A F V - X
.
R 1 1 0 9
R 1 1 1 1
1 8 k
1 0 k
1
2
3
4
M G
M G
C 1 1 0 6
0 . 0 0 4 7 u
.
R 1 1 1 2
M G
.
R 1 1 1 0
1 0 k
M G
2 7 k
C 1 1 0 5
M G
2 2 0 p
1 5 k
M G
R 1 1 1 6
R 1 1 1 5
C 1 1 0 7
1 5 k
0 . 0 0 3 3 u
O P E N
T H 1 2 0 3
NAD0039-001X
1
2
R 1 2 0 2
L 1 2 0 1
T H 1 2 0 2
0
M G
N Q L 5 2 E M - 6 R 8 X
NAD0039-001X
1
2
1
2
C 1 2 2 2
K 1 2 0 1
0 . 0 0 2 7 u
N Q R 0 3 5 1 - 0 0 2 X
O P E N
M G
R 1 2 0 7
M G
M G
R 1 2 2 1
C 1 2 0 1
1 0 k
1 5 k
R 1 2 0 5
.
2 2 0 / 3 5
2 7 k
C 1 2 2 1
1
.
0 . 0 0 4 7 u
E
2
C 1 2 0 2
M G
M G
R 1 2 0 3
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R 1 2 0 8
0 . 0 6 8 u
0
M G
1 0 k
R 1 2 0 6
1 8 k
1 u
C 1 2 0 3
K 1 2 0 2
N Q R 0 3 5 1 - 0 0 2 X
O P E N
R 1 2 1 1
1 6 1 5 1 4 1 3 1 2 1 1 1 0
1 0 k
C 1 2 1 0
M G
I C 1 2 0
C 1 2 0 4
.
B A 9 7 4 3 A F V - X
1 u
.
0 . 1 u
R 1 2 0 9
1 8 k
1
2
3
4
M G
0 . 0 0 4 7 u
R 1 2 1 2
C 1 2 0 6
R 1 2 1 0
M G
1 0 k
.
2 7 k
M G
.
C 1 2 0 5
2 2 0 p
O P E N
M G
C 1 2 0 7
R 1 2 1 6
R 1 2 1 5
1 5 k
1 5 k
M G
O P E N
O P E N
R 1 3 0 1
R 1 3 0 2
M G
0
0
M G
L 1 3 0 1
N Q L 5 2 E M - 6 R 8 X
R 1 3 2 2
M G
C 1 3 2 2
1
2
1
2
0
0 . 0 0 2 7 u
T H 1 3 0 1
K 1 3 0 1
N A D 0 0 2 3 - 0 1 0 X
N Q R 0 3 5 1 - 0 0 2 X
O P E N
C 1 3 0 1
R 1 3 2 1
C 1 3 0 2
O P E N
2 2 0 / 3 5
1 5 k
1
0 . 0 6 8 u
.
O P E N
M G
M G
M G
O P E N
E
2
R 1 3 0 5
R 1 3 0 7
2 7 k
C 1 3 2 1
.
1 0 k
0 . 0 0 4 7 u
O P E N
R 1 3 0 3
.
R 1 3 0 8
0
R 1 3 0 6
R 1 3 2 3
M G
1 0 k
0
M G
M G
1 u
O P E N
M G
0
C 1 3 0 3
O P E N
K 1 3 0 2
N Q R 0 3 5 1 - 0 0 2 X
O P E N
R 1 3 1 1
1 6 1 5 1 4 1 3 1 2 1 1 1 0
1 0 k
M G
.
C 1 3 0 4
C 1 3 1 0
I C 1 3 0
1 u
B A 9 7 4 3 A F V - X
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0 . 1 u
R 1 3 0 9
1 5 k
1
2
3
4
M G
0 . 0 0 4 7 u
C 1 3 0 6
.
M G
.
R 1 3 1 0
.
R 1 3 1 2
1 0 k
2 7 k
M G
M G
M G
R 1 3 1 6
C 1 3 0 7
C 1 3 0 5
R 1 3 1 5
1 5 k
1 5 k
0 . 0 0 3 3 u
2 2 0 p
O P E N
O P E N
O P E N
F
E
2 S A 1 0 3 6 K / P Q R / - X
D 1 1 3 2
R 1 1 3 5
R 1 1 3 2
1 S R 1 5 4 - 4 0 0 - X
2 7 0
1 k
M G
M G
R 1 1 3 6
L 1 1 3 1
I C 1 1 1
Q 1 1 3 1
2 2 0
D 1 1 3 1
K 1 1 3 2
L M 3 1 7 H V T
R 1 1 3 1
N Q L 5 2 E M - 2 2 1 X
E
M G
R B 1 6 0 L - 6 0 - X
4 7 0
NQR0499-004X
I N
R 1 1 4 1
1
2
3
M G
B
K 1 1 3 1
M G
1
M G
NQR0351-002X
C 1 1 3 7
C
R 1 1 3 7
6 8 k
C 1 1 3 1
R 1 1 3 8
O P E N
0 . 0 0 4 7 u
.
2 2 0 p
0
O P E N
R 1 1 3 3
1 5
O P E N
C 1 1 3 9
3 3 k
C
D
R 1 1 3 9
2 2 / 6 3
M G
3 . 3 k
M G
B
1
O P E N
M G
R 1 1 4 0
R 1 1 3 4
C 1 1 3 2
R 1 1 4 4
1
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G
.
E
2 . 2 k
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.
2
1 0 k
3 3 k
C 1 1 3 5
6 8 k
.
1
1 u
S
M G
E
0 . 1 u
C 1 1 3 6
M G
M G
2
M G
O P E N
2 2 / 6 3
2
E
Q 1 1 3 2
C 1 1 3 3
Q 1 1 3 3
C 1 1 3 4
R 1 1 4 2
C 1 1 3 8
R 1 1 4 5
2 S C 2 4 1 1 K / Q R / - X
1 0 / 3 5
0 . 1 u
1 5 k
0 . 1 u
M G
2 S K 2 5 0 4 - X
O P E N
D - G N D
R 1 1 4 3
C 1 1 2 7
3 . 3 k
0 . 1 u
M G
9
A - G N D
Q 1 1 4 0
2 S C 3 9 2 8 A / Q R / - X
.
R 1 1 6 1
C
4 7 k
C 1 1 2 6
0 . 4 7 u
B
.
5
6
7
8
M G
A + 5 V 2 0 0 m A
E
R 1 1 6 0
C 1 1 2 5
A + 5 V
M G
4 7 k
0 . 1 u
Q 1 1 5 3
T P 1 1 3
O P E N
L 1 1 5 1
L 1 1 5 2
2 S J 6 3 2 - X
K 1 1 5 1
N Q L 5 2 E M - 2 2 0 X
N Q L 5 2 E M - 4 7 0 X
Q 1 1 5 2
NQR0351-002X
D - G N D
2 S C 2 4 1 1 K / Q R / - X
1
2
1
2
.
C
C 1 1 5 5
M G
R 1 1 5 6
R 1 1 5 2
R 1 1 5 4
1 5 k
B
0 . 0 0 4 7 u
2 . 2 k
0
O P E N
M G
R 1 1 5 3
M G
.
R 1 1 5 5
R 1 1 5 7
E
1 5
2 . 2 k
1 5 k
O P E N
M G
2
C 1 1 5 3.
1
M G
C 1 1 5 7
R 1 1 5 1
M G
D 1 1 5 1
0 . 1 u
C 1 1 5 4
1
.
2
E
2 2 0 / 1 6
1 k
C 1 1 5 1
1
.
S F P B - 7 6 - W
2
M G
1
E
C 1 1 5 6
M G
C 1 1 5 2
R 1 1 5 8
2
B
1 0 / 3 5
1 0 k
2 2 0 / 1 6
1
1 u
2
0 . 1 u
E
C
Q 1 1 5 1
2 S A 1 0 3 6 K / P Q R / - X
D - G N D
A + 1 2 V 1 0 0 m A
A + 1 2 V
Q 1 2 3 3
2 S J 6 3 2 - X
L 1 2 3 1
T P 1 2 1
K 1 2 3 1
L 1 2 3 2
NQR0351-002X
N Q L 5 2 E M - 1 0 1 X
Q 1 2 3 2
N Q L 5 2 E M - 2 2 0 X
O P E N
2 S C 2 4 1 1 K / Q R / - X
1
2
1
2
O P E N
O P E N
M G
C
.
R 1 2 3 2
C 1 2 3 5
R 1 2 3 6
B
R 1 2 3 4
2 . 2 k
0 . 0 0 4 7 u
1 . 5 k
0
M G
R 1 2 3 3
M G
E
.
1 5
2
C 1 2 3 3
1
.
R 1 2 3 5
R 1 2 3 7
M G
2 . 2 k
D 1 2 3 1
3 9 k
M G
R 1 2 3 1
E
S F P B - 7 6 - W
0 . 1 u
2
M G
2
E
M G
1
O P E N
1
.
1 k
C 1 2 3 4
1
.
C 1 2 3 2
2 2 0 / 1 6
R 1 2 3 8
C 1 2 3 6
2
1
B
C 1 2 3 7
C 1 2 3 1
2
1 0 / 3 5
4 . 7 k
4 7 / 1 6
0 . 1 u
E
C
1 u
M G
Q 1 2 3 1
2 S A 1 0 3 6 K / P Q R / - X
D - G N D
C 1 2 2 7
0 . 1 u
9
Q 1 2 4 0
2 S C 3 9 2 8 A / Q R / - X
C 1 2 2 6
0 . 4 7 u
.
C
R 1 2 6 1
4 7 k
A - 1 2 V 1 0 0 m A
B
5
6
7
8
M G
A - 1 2 V
A - 1 2 V
.
E
C 1 2 2 5
R 1 2 6 0
T P 1 2 3
4 7 k
0 . 1 u
M G
Q 1 2 5 3
O P E N
2 S J 6 3 2 - X
K 1 2 5 1
L 1 2 5 2
D 1 2 5 1
NQR0351-002X
S F P B - 7 6 - W
C 1 2 5 5
N Q L 5 2 E M - 2 2 0 X
Q 1 2 5 2
D - G N D
2 S C 2 4 1 1 K / Q R / - X
0 . 0 0 4 7 u
1
2
O P E N
C
R 1 2 5 6
R 1 2 5 2
.
2 . 7 k
2 . 2 k
B
R 1 2 5 4
O P E N
M G
M G
0
.
R 1 2 5 3
C 1 2 5 3
R 1 2 5 5
M G
E
1 5
R 1 2 5 7
0 . 1 u
E
2 . 2 k
3 9 k
C 1 2 5 4
2
.
M G
M G
R 1 2 5 1
M G
E
E
E
2 2 0 / 1 6
2
.
1 k
1
.
1
C 1 2 5 7
M G
C 1 2 5 2
1
R 1 2 5 8
B
1 0 / 3 5
L 1 2 5 1
1
0 . 1 u
0 . 0 0 2 7 u
2
3 . 9 k
C 1 2 5 1
M G
O P E N
C
N Q L 5 2 E M - 1 0 1 X
2
Q 1 2 5 1
1 u
C 1 2 5 6
2 S A 1 0 3 6 K / P Q R / - X
D - G N D
4 7 / 1 6
A + 1 4 V 4 0 0 m A
O P E N
A + 1 4 V
Q 1 3 3 3
O P E N
2 S J 6 3 2 - X
L 1 3 3 1
T P 1 3 1
N Q L 5 2 E M - 4 7 0 X
O P E N
K 1 3 3 1
Q 1 3 3 2
NQR0351-002X
2 S C 2 4 1 1 K / Q R / - X
O P E N
1
2
M G
C
C 1 3 3 5
.
O P E N
R 1 3 3 6
O P E N
R 1 3 3 2
0 . 0 0 4 7 u
1 k
O P E N
B
2 . 2 k
R 1 3 3 4
O P E N
M G
0
O P E N
R 1 3 3 3
R 1 3 3 5
R 1 3 3 7
E
1 5
M G
2
1
.
2 . 2 k
4 7 k O P E N
O P E N
C 1 3 3 4
M G
M G
2 2 0 / 1 6
D 1 3 3 1
2
.
R 1 3 3 1
M G
1
E
E
O P E N
1 k
.
1
S F P B - 7 6 - W
C 1 3 3 3
O P E N
O P E N
M G
O P E N
C 1 3 3 2
R 1 3 3 8
O P E N
0 . 1 u
B
4 . 7 k
C 1 3 3 1
2
1 0 / 3 5
O P E N
O P E N
1 u
E
O P E N
C
M G
Q 1 3 3 1
O P E N
2 S A 1 0 3 6 K / P Q R / - X
R 1 3 2 4
0
D - G N D
M G
.
C 1 3 2 7
0 . 1 u
9
Q 1 3 4 0
2 S C 3 9 2 8 A / Q R / - X
.
C
R 1 3 6 1
4 7 k
B
M G
5
6
7
8
C 1 3 2 6
.
0 . 4 7 u
E
C 1 3 2 5
R 1 3 6 0
0 . 1 u
4 7 k
M G
D + 5 V
Q 1 3 5 3
L 1 3 5 2
T P 1 3 3
2 S J 6 3 2 - X
O P E N
L 1 3 5 1
K 1 3 5 1
Q 1 3 5 2
D - G N D
N Q L 6 3 E M - 2 2 0 X
N Q L 5 2 E M - 6 R 8 X
2 S C 2 4 1 1 K / Q R / - X
NQR0351-002X
1
2
1
2
C
.
R 1 3 5 2
C 1 3 5 5
R 1 3 5 6
B
R 1 3 5 4
0 . 0 0 4 7 u
1 5 k
0
M G
2 . 2 k
O P E N
R 1 3 5 3
M G
E
C 1 3 5 7
M G
E
1 5
2
1
.
R 1 3 5 7
R 1 3 5 5
1 5 k
0 . 1 u
2 . 2 k
R 1 3 5 1
M G
2
C 1 3 5 4
M G
E
2
E
1
M G
1
1 k
1
.
D 1 3 5 1
2 2 0 / 1 6
O P E N
C 1 3 5 2
C 1 3 5 3
M G
S F P B - 7 6 - W
R 1 3 5 8
2
.
B
1 0 / 3 5
0 . 1 u
1
2
1 0 k
C 1 3 5 1
E
C
1 u
M G
Q 1 3 5 1
2 S A 1 0 3 6 K / P Q R / - X
C 1 3 5 6
2 2 0 / 1 6
D - G N D
D
C
4 8 V 9 0 m A
A + 4 8 V
T P 1 1 1
A + 4 8 V
O U T
2
A D J
R 1 0 1 1
R 1 1 4 7
6 8 0
M G
0
M G
R 1 0 1 2
1
C 1 1 4 1
M G
2 2 / 6 3
0
R 1 1 4 6
0
2
E
R 1 0 1 3
M G
A G N D
M G
0
C 1 1 4 0
T P 1 1 2
R 1 0 1 4
0 . 1 u
M G
0
A - G N D
D - G N D
A + 5 V
A G N D
D 1 1 5 2
T P 1 1 4
P T Z 5 . 6 A - X
A + 1 2 V
A G N D
D 1 2 3 2
T P 1 2 2
M A 1 1 1 - X
A - 1 2 V
A - G N D
A G N D
T P 1 2 4
D 1 2 5 2
M A 1 1 1 - X
A + 1 4 V
O P E N
A - G N D
T P 1 3 2
O P E N
R 1 0 1
0
M G
R 1 0 2
0
M G
D + 5 V
L + 5 V
R 1 0 3
0
M G
R 1 0 4
0
M G
R 1 4 0 2
4 7 k
M G
P . S E N S E
<P. 9 / I2>
Q 1 4 0 1
C
D 1 4 0 1
2 S C 3 9 2 8 A / Q R / - X
B
Q 1 4 0 2
M A 1 1 1 - X
R 1 4 0 3
C
D T C 1 4 4 E U A - X
4 7 k
M G
B
E
.
E
1
.
R 1 4 0 4
4 7 k
2
M G
C 1 4 0 1
D G N D
1 0 / 3 5
T P 1 3 4
O P E N
R 1 4 0 1
C 1 4 0 2
C 1 4 0 3
4 7 k
0 . 1 u
0 . 1 u
M G
O P E N
D 1 3 5 2
P T Z 5 . 6 A - X
R 2 0 1
0
M G
R 2 0 2
0
M G
R 2 0 3
0
M G
R 2 0 4
0
M G
D - G N D
L - G N D
B
A
IMX644
1
2
3
4
5
6
7
LSS10050-001F-70
5
15
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