Yamaha MSR400 Service Manual page 28

A B
■ MSR400 OVERALL CIRCUIT DIAGRAM 1/3 (INPUT, MIX)
Q Q
3 7 6 3 1 5 1 5 0
INPUT
1
NC3MAV
JK102
1 2
LINE OUT
4
3
EM101
FB3
BEAD
NC3FAV1 0 -
JK103
2
1 2
LINE/
MIC IN
3
FB2
BEAD
FB1
BEAD
EM102
3
LINE IN
(PHONE)
JK104
CK3-6, 35-14
T E
L 1 3 9 4 2 2 9 6 5 1 3
R129 OP AMP
33K -15V C128
0.01u
4
2
C119 C120 C122
3
0.68u 68N 68N
R125 R130
+15V
4K7 120K
C126
0.01u
5
R126
1K
C121
R132
1K
0.039u
6 C124
7
R127
5
0.012u
1K2
IC107B
NJM2068L-D
R131
C123
15K
OP AMP
2700P
w w w
6
Note: See parts list for details of circuit board component parts.
注：シートの部品詳細はパーツリストをご参照ください。
MSR400
2
C D
-15V +15V
IC102B
6
C153
D102
5
1N4148
D101 47P
1N4148
NJM2068L-D
R120
3K9
-15V
C112
C101
R113 0.01u
2 C118
1
3K9
10u/50V C104 3
220P C113 10u/25V
IC102A
0.01u
NJM2068L-D
C102 OP AMP
R117
+15V
3K9
10u/50V
R112 C107
3K9 47P
D103 D104
1N4148 1N4148
+15V -15V
C131
C137
LF
0.22u
100P -15V C133
R140 0.01u
15K
2
R149
6 1
R143 R145
7 3
IC105A 1K2
R133
1 5 NJM2068L-D
1K 1K
IC105B
C141
3K3
IC104A
NJM2068L-D
0.033u
NJM2068L-D +15V OP AMP
C130
OP AMP
0.01u
R141
680
6
R135
C129 7
20K
5
IC104B
C132
NJM2068L-D
1u 0.15u
OP AMP
R137
R142
VR103
EQ LOW
1K5
C10K
120K
R134
6K8
HF
C143
R136 -15V
0.01u
R146
10K -15V C140
0.01u 3K3
2
R153
C135 6 1
C144
2 0.01u C138 7 3
18
IC108A
C127 1 5
0.015u NJM2068L-D
3
IC108B
IC107A 0.012u
NJM2068L-D R151
0.015u NJM2068L-D VR105
+15V
R147 6K8
C142
R139 B50K
18K
0.01u
15K +15V
C139
OP AMP OP AMP OP AMP
0.01u
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E F
MIX
R144
C103
390R
100u/25V
VR104
LEVEL
A20K
R138
18K
7
+15V
+15V
SIG
5 5
SIG-G
4 4
+15V +15V
3 3
+/-15V-G
2 2
-15V
-15V
1 1
CN101 CN102
R191
P10176 M241855
2.2K
R185
-15V
1.5K
LED2
POWER
R171
47K
C301
10u/25V
Q107
R170
-15V
470K
2SK246
Q Q
3 7
C147
1
-15V C136 +15V
0.47u
0.01u
2
1
R150 R152
3
1K1 NJM2068L-D
1K1
IC106A
3
C149 C148
0.1u 0.018u
OP AMP
+15V
C134
R186
0.01u
1.5K
R179
51K
C309
10u/25V
Q113
R169
-15V
470K
2SK246
EQ HIGH
R158
56K
6
7
5
IC106B
NJM2068L-D
R157
OP AMP
27K
u 1 6 3
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G H
2 4
8 9 9
R148
51K
-15V
C117
0.01u
6
2
7
1
5
3
IC103A
C114
NJM2068L-D
IC103B
NJM2068L-D
+15V
0.01u
OP AMP
Q105 DTA114EKA CN104
1 M241852
E 1
2
R189
R1
2.2K
R2 R187
B 2 from AMP 1/2-CN204
100K
3 C
3
C
B Q106
R2
2
DTC114EKA
R1
D105
E
1
C304
1N4148
47P
C302
R173 R175
33K
1K
10u/25V -15V C116
0.01u
2
R177
NJM2068L-D 1
IC109A
3
18R
C115
0.01u OP AMP
C303
+15V
100P
6 3 1 5 1 5 0 8 9
CN105
Q111 DTA114EKA
M241852
E 1
R190
2
R1
2.2K
R2 R188
B 2
from AMP 2/2-CN205
100K
C 3
C
B Q112
R2
2
DTC114EKA
R1
D106
E
1
C305
C306 4148
R181 47P
1K
R183
10u/25V
39K
6
R184
7
5
18
OP AMP
IC109B
C308
NJM2068L-D
100P
m
c o
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I
MSR400
2
8 9 9
2 4 9 8 2 9 9
CN103
6
LF
5
SIG-G
4
HF
3 from AMP 1/2-CN201
+15V
+15V
2
GND
1
-15V
-15V
LED 1
PEAK/
LIMIT
MSR400