Yamaha MS400 Service Manual page 19

A B
Q Q
3 7 6 3 1 5 1 5 0
MS400 OVERALL CIRCUIT DIAGRAM 1/2 ( AMP 1/5 , 2/5 , 3/5 )
AMP 1/5
to AMP 5/5
-CN103
T E
L 1 3 9 4 2 2 9 6 5 1 3
DESTINATION
NJM7815FA (XD853A00) NJM7915FA (XD854A00)
REGULATOR REGULATOR -15V
w w w
1 3
2 2
3 1
1: INPUT
2: GND
3: OUTPUT
.
MS400
A B
C
REGULATOR
N.C
x a o
y
1: OUTPUT
2: COMMON
3: INPUT
i
C
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D E
8
N.C
N.C
Q Q
3 7 6 3
u 1 6 3
38CA2-8818015
3
.
Note : See parts list for details of circuit board component parts.
D E
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F G
2 4
9 9 8
1 5 1 5 0 8 9 2 4
AMP
AMP 3/5
m
c o
: Mylar Capacitor
: Ceramic Capacitor
: Flame ProofC. Resister
: Mica Capacitor
: Metal Film Resistor
F G
H
2
9 9
MS400
1
2
3
9 8 2 9 9
Speaker
4
2/5
AC IN
5
MS400
19
6
H