Ic Block Diagram - Yamaha MS101III Service Manual

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3 7 63 1515 0
MA3/3
TE
L 13942296513

IC BLOCK DIAGRAM

µPC4570HA-A (X7405A00)
Dual Operational Amplifier
MA1/3: IC101, 102
A
-
1
2
3
4
+V
-IN
OUT
+IN
A
A
A
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Soldering (半田付け)
Photo 2 (写真2)
(ICブロック図)
LA4490N (X7406A00)
Power Amplifier
MA1/3: IC103
AMP2 IN (–)
B
AMP1 OUT
-
AMP2 IN (+)
5
6
7
8
9
-V
-IN
+V
+IN
OUT
B
B
B
AMP1 IN (+)
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ao
y
i
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8
AC cord
(ACコード)
Soldering
(半田付け)
MA3/3
Q Q
3
6 7
1 3
N.C
10
3
Vcc
6
BS2
8
Inverting
7
5
AMP2 OUT
amplifier
AMP2
11
9
N.C
Protection
circuit
N.C
12
13
Non-inverting
2
AMP1 OUT
amplifier
AMP1
-
14
NF1
1
BS1
4
GND
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.
2 9
9 4
2 8
Power transformer (パワートランス)
Photo 3 (写真3)
1 5
0 5
8
2 9
9 4
m
co
MS1013 3 3 3 3
9 9
2 8
9 9
9

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