Yamaha MSP5 Service Manual page 9

A B C
MSP5 OVERALL CIRCUIT DIAGRAM
Q Q
3 7 6 3 1 5 1 5 0
MAIN 3/5
LINE 1
OP AMP
LINE 2
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
MSP5
A B C
D E
MAIN 4/5
VOL.
OP AMP
OP AMP
HIGH LOW
TRIM
MODEL
MAIN 5/5
POWER TRANSFORMER
MODEL VOLTAGE PARTS No
x a o
. i
D E
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F G
MAIN 1/5
OP AMP
OP AMP
Q Q
3 7
NJM79M15FA (XG505A00) NJM78M15FA (XJ603A00)
REGULATOR -15V REGULATOR +15V
u 1 6 3
y
1: OUTPUT 1: OUTPUT
3 3
2: INPUT 2 2: COMMON
2
1
1
3: COMMON 3: INPUT
F G
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H I
2 4
8 9 9
OP AMP
POWER AMP
MAIN 2/5
OP AMP
OP AMP
6 3 1 5 1 5 0 8 9
REGULATOR +15V
REGULATOR -15V
m
MTZ J 24.0C (VG442600) D3SBA20 (VT359600)
1SS133,176,HSS104
(VD631600) DIODE STACK 4.0A
ZENER DIODE
DIODE
c o
.
Anode Anode
Cathode Cathode
H I
J K L
MSP5
2
8 9 9
SPEAKER
25mm 6
SPEAKER
12cm 4 40W
2 4 9 8 2 9 9
2SC2603 E,F (IC260320)
TRANSISTOR
MSP5
KEC-92341
J K L
1
2
3
4
5
6
7
8