Yamaha MSR400 Service Manual page 30

A B
■ MSR400 OVERALL CIRCUIT DIAGRAM 2/3 (AMP 2/2, AC INLET, SW)
AMP 2/2 (HF)
1
C203
4u7/100V
from AMP 1/2 A2 (P.3)
HF
C206
22u/25V
R202 Q204
1K 2SA970
2
R205
22K
C208
100PF
AC INLET
R206
JK105
750
N AC IN L
※2 ※2
3
C204
Q202
4u7/100V
2SC1815
CN106
SW
3 1
F101
POWER
※1
C105
1000P
4
T101
CN202
6 RE
5
BL
4
RE
3 2 1
3 OR
CN107 2 WH
1
OR
TRANSFORMER
5
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。
6
MSR400
4
C D
R247
220
D209
1SS133/176
R237
R211
330
560
D210
1SS133/176
C219
Q212
22P
R226
Q206 2SC1815 4u7/100V
2SA970
220
Q220
R221
2SA1371
47K
R212
R231
10K
47K
C216
R222
R241
Q208 0.01u
47K
2SA970 2K2
R232
Q217
47K
2SC4793
R242
330
10u/25V
C212
47P
C210
R217 R218
100uF/25V
11K 11K
D204
CN205
1
IDLING
2
ADJ.
1SS133/176
To
MIX
D202
-CN105
R233 R244
Q243
47K VR202
270
2SC3468
1K
1SS133/176
R234
47K
Q218
2SC3468
Q210
C220 4u7/100V
2SC1815
C214
Q214 22P
2200P 2SA1015
R208 R214 R224 R238
560 560 200
330
R248
220
D238
D10XB20
+Vcc
C252
C262
※1
0.33u
C263 C253
REGULATOR +15V
0.33u
※1
IC201
NJM7815FA
-Vcc
F201
Vin
※1
C250
0.1u D230 D228
C240
47uF/50V
C251
4 2
1N4004Lx4
0.1u
C241
47uF/50V
F202
D227
D229 C245
※1
1000uF/35V
Vin
IC202
NJM7915FA
REGULATOR –15V
E F
+Vcc
R251
47K
D216
R255
HF-1
to AMP 1/2 E1 (P.3)
47K
D1NL20U
C229
10P
ZD203
MTZJ6.8C
C225
D211
HSSB2
Q222
HF-A
to AMP 1/2 F2 (P.3)
2SC3468
R263
Q226N
C4883A
100
D221
R271
IN4004L
4R7
Q229N
2SC5200
C222
R259 R267
R275
CN207
100
330
0.1R/5W
1
2
R260 R268 R276
N.C.
330 100
0.1R/5W
R272
Q226P
A1859A
4R7 D222
Q229P IN4004L
R264
2SA1943
100
Q224 to AMP 2/2
HF-B
F4 (P.3)
2SA1371
D213
LF AMP
HSSB2
from AMP 1/2 F3 (P.3)
C226
ZD204
MTZJ6.8C
C230
10P
R256
HF-2 to AMP 1/2 E5 (P.3)
R291
47K
150K
D218 R287
R252
D1NL20U 10K
47K
-Vcc
R290
150K
R281
47K
R282
47K
Q233
C231 2SC5395
10u/25V
+15V +15V
Q230
2SC5395
C234
47uF/25V
CN209
D224
C236
IN4004L
10u/50V
2
R283
1
10K
Q234
C235
C237 N.C. 2SA1993
D225 4u7/50V R288
10u/50V
IN4004L
56K
R289
15K
-15V -15V
D226
IN4004L
G H
• D10XB20 (AAX65400) • NJM7815FA(AAX64890)
DIODE STACK REGULATOR +15V
AMP: D238 AMP: IC201
3
2
1
C246 C247
R304
4R7/2W
0.1u 0.1u
CN203
RY201
VH4P
C270
OSA-SH-224DM3M
0.01u 4 HF -
R320
3 HF+
D233
4R7
R321
2 LF+
IN4004L
4R7 1 LF-
C271
0.01u
C256 C257 EMI core (Korea model only)
R307
4R7/2W
0.1u 0.1u
R286 R284
150K 22K
R285
Q231
47K
2SA1993
D223
C232
Q232 1000P
1SS133/176
2SC5395
C233
470uF/100V
※ 1 The parts for the element with this notification vary depending on the destination.
Refer to the table below for the parts to be used.
注記の素子は仕向により使用部品が異なります。使用部品については下表を参照してください。
C252 C253 F101
J 6800u/100V 6800u/100V 5A125V
U, T 6800u/80V 6800u/80V 5A125V
H, B, A, K, O 6800u/80V 6800u/80V T2.5AL
※ 2 The element in the dotted area is attached to the destination indicated in this area.
破線内の素子は、破線内部に記載された仕向にのみ取り付けられます。
I
MSR400
• NJM7915FA(AAX64900)
REGULATOR -15V
AMP: IC202
3
2
1
1: OUTPUT 1: OUTPUT
2: COMMON 2: INPUT
3: INPUT 3: COMMON
TWEETER
WOOFER
F201 F202
1A250V 1A250V
1A250V 1A250V
T1AL T1AL
MSR400