Schematic Diagram -Amplifier(1/3)/Filter/Sub 1/Sub 2 Section - Sony XM-7557 Service Manual

5-7. SCHEMATIC DIAGRAM – AMPLIFIER (1/3)/FILTER/SUB 1/SUB 2 SECTION –
• See page 10 for IC Block Diagram.
• Semiconductor Location
Ref. No. Location Ref. No. Location
D101 G-12 Q211 G-10
D102 G-11 Q212 G-9
D103 D-9 Q213 E-9
D201 G-10 Q214 E-9
D202 G-10 Q301 A-5
D203 E-9 Q302 A-7
D301 G-8 Q303 A-5
D302 G-7 Q304 F-8
D303 E-8 Q305 F-8
D401 G-6 Q306 F-7
D402 G-7 Q307 F-7
D403 E-6 Q308 G-8
D501 G-4 Q309 G-7
D502 G-3 Q310 G-7
D503 G-2 Q311 G-8
D504 G-3 Q312 G-7
D505 E-5 Q313 E-8
D506 E-6 Q314 E-8
D701 G-12 Q401 A-5
D702 F-5 Q402 A-7
D703 F-1 Q403 B-5
D704 G-5 Q404 F-6
D706 E-1 Q405 F-6
D707 C-2 Q406 F-5
D708 D-2 Q407 F-5
D709 D-2 Q408 G-6
D710 D-1 Q409 G-5
D711 D-1 Q410 G-6
D712 D-2 Q411 G-6
D713 D-2 Q412 G-5
D714 D-1 Q413 E-5
D715 D-1 Q414 E-5
D716 D-8 Q503 F-4
D717 E-3 Q504 F-4
D718 D-3 Q505 F-4
Q506 F-4
IC701 B-10 Q507 G-4
IC702 B-9 Q508 G-4
IC703 B-8 Q509 G-4
IC704 B-7 Q510 G-4
IC705 B-6 Q511 G-3
IC706 B-5 Q512 F-2
Q513 F-2
Q101 A-10 Q514 F-1
Q102 B-9 Q515 F-1
Q103 B-11 Q516 G-2
Q104 F-12 Q517 G-1
Q105 F-12 Q518 G-2
Q106 F-11 Q519 G-2
Q107 F-11 Q520 G-1
Q108 G-12 Q521 E-4
Q109 G-11 Q522 E-4
Q110 G-11 Q523 E-3
Q111 G-12 Q524 E-3
Q112 G-11 Q701 E-1
Q113 E-12 Q702 E-1
Q114 E-12 Q704 C-2
Q201 A-10 Q705 C-1
Q202 B-9 Q706 C-2
Q203 B-11 Q707 C-10
Q204 F-10 Q708 D-9
Q205 F-10 Q709 D-10
Q206 F-9 Q710 D-8
Q207 F-9 Q711 D-8
Q208 G-10 Q712 D-7
Q209 G-9 Q713 D-7
Q210 G-9
AMPLIFIER BOARD
IC703
PRE. AMP
IC703
C103
R103
C104 NJM4580E(T1)
4.7/50V
22k 0 R107
33P 5
0
7 150
C102 4.7/50V
6 8
R102 0
C101
R101 22k R106 22k
330
3.3k
VR701
25V
R702 LEVEL
C106 47P 1k (MIN-MAX)
CNJ701
4P
FL
R206 22k
R701
1k
C202 R202 C206 47P
4.7/50V 22k 0 4
3
0
1
R207
2
C203 R203 0 IC703
FR 150
4.7/50V 22k
NJM4580E (T1)
IC704
C303 R303
C304
NJM4580E (T1)
RL
4.7/50V 22k 0 R307
33P
5
0 150
7
6 8
C302 R302 0
4.7/50V 22k
R306 22k
VR704
R703 LEVEL
1k B–
C306 47P (MIN-MAX)
RR
C406 47P
R704
1k
C402 R402
R406 22k
4.7/50V 22k 0
2 4
–15
1
R407
3 0
C403 R403 0 C404 IC704
150
4.7/50V 22k 33P
NJM4580E (T1)
C703 0.1
IC704 IC705
PRE. AMP PRE. AMP
TO SUB-1 BOARD
S707
S708
S710 INPUT-MODE
TESTTONE (F F+R) (US/CND)
CNJ711
R516
C514
3.3k
100P
VR707
FILTER
C515
(50Hz-200Hz)
47/16V
20KEX2
C516
0.22
R517
4.7k
9 1
CNJ709 9P
CNP709 9P
9 1
R508 R512 R511
R515 IC714(2/2)
4.7M 22k 22k
1.5k
NJM4580E
R514 4.7k (T1)
IC713(1/2)
0
CNJ706 VR708
NJM4580E
LEVEL
2P C505 R505 C511 100P 6
C508 (T1) 0
0 7
4.7/50V 22k 0 0
33P 3 6
1 7
L
5 8 C518
C510 R513
5kc 1/50V
2 4 0 150 5 8
100P
C504 0
4.7/50V
R518
VR709
(1/2)
2.7k
–15 15
INPUT R510 (MIN- 20KE
10k C715 BOOST
C506 MAX)
C714
0.1 LOW CUT
4.7/50V
0.1 B+
FREQ
B–
(7Hz-40Hz)
R
R507 22k
C507
4.7/50V IC713 IC714 IC714
PRE. AMP (1/2) L.P.F
B+
B– C702 C701
220/16V 220/16V
R155 10k
C152 0.15
IC702
R154 10k
PRE. AMP
C151 100P R156 2.2k C154 0.015 R157 2.2k
0
R108 4.7k 0 6 IC708
0
6
7 7
R152 NJM4580E (T1) FILTER
6.8k (
C107 100P R151 0 8 0
)
10k
5 8 5
0 0
6
7
IC702 IC709(2/2) B+ 15
B+ 5 8
NJM4580E NJM4580E (T1)
15 B–
(T1)
–15
R251 0 3 IC707
10k
4 4 0 NJM4580E
IC702 1 0 1
–15 B– R252
3
(T1)
NJM4580E 6.8k
2 R257
(T1) 0 2
3 0 2.2k
4 0
1
C251 100P R256 2.2k C254 0.015
2
R254 10k
0 C207 100P
IC709 (1/2)
R255
R208 4.7k NJM4580E 10k
C252
(T1) 0.15
IC709,710 IC708,712
R308 4.7k
L.P.F
H.P.F
C307 100P
0 C352
6
0 0.15
7 IC710(2/2) IC711
R355
10k NJM4580E(T1)
IC705 NJM4580E
5 8
NJM4580E (T1)
15
(T1) B+ R354 10k
C351 100P R356 2.2k C354 0.015 R357 2.2k C355 0.015
6
0
0 6
R353
IC705
7 R352 7
5 5 FILTER
22k
NJM4580E
8 0 6.8k 8 0
(
(T1)
4 )
3 0
1
R351
10k
2 15
B+
C407 100P
0 0
B–
–15
R451
R408 4.7k IC712
10k
0 NJM4580E
4
4 (T1)
0
1 R452 1
3 3
R453
6.8k
22k 0 R456 R457
2 2
0
2.2k 0 2.2k
C451
100P C454 0.015
R454 10k
IC710(1/2) R455
NJM4580E 10k
C452
(T1) 0.15
B+
B+
B–
B–
10 1 CNJ710 10P
10 1 CNB710 10P
S709
(US/CND)
S708
DIRECT
MODE
(ON OFF)
(LEVEL BOOST)
Q501 2SC3327-A
C512 4.7/50V 0.8
R523
0 0 10k
C513 4.7/50V
IC715(1/2) 0.8 R714 1k R711 1K
VR709(1/2) NJM4580E(T1) R525 R719 4.7k R709 4.7k R710 10k
R524 R718 10K
20KE 3
10k
1 0 10k
R519
0 0
D705
3.9k
2 6
0 IC716(1/2)
R522 2 4 Q502 1 1SS184-TE85L
0
NJM4580E 5
0 1k 2SC3327-A
3
0
1 0 (T1) 4 3
0
C519
6 0
2 4 IC715(2/2)
1/50V 7
0
R521 NJM4580E C744 R739 R705 R706
R708
15
3.3k 5 8 0.01 3.9k 10k 1.5k
R520 (T1) 160k
VR710
2k
5KC IC714 (1/2) C716
C520
C743 R738
BOOST 0.01
100P NJM4580E
0.01 3.9k
LEVEL
(T1)
15 B+
(0dB-+10dB)
–15 –15
IC715 IC716
(2/2) H.P.F LOW BOOST LOWTEST TONE AMP
13 13
B–
1
9
9P CNP702
9P CNJ702
R109
3.3k
S701
1 9
FILTER
C153
(X1 X10) 0
0.15 C156
47/16V
0
R111 3.3k
HPF
C157
FLAT R110
47/16V
C155 0.015
LPF 4.7k C108 100P
0 0 R159
6 5KC
100
7
C109
R160
4.7/50V
IC707
5 8
10k
NJM4580E(T1)
–0.6
VR703
LOW BOOST
(0dB – +10dB)
B–
C209 –0.6
4.7/50V
IC708
5KC
NJM4580E
R260
3 4
(T1) R209 R210 C208 100P
1 10k
3.3k 4.7k
C257 R259
2
0 0
47/16V 100
LPF 0 R211
C258
FLAT 3.3k
C255 0.015
100P
HPF
0
C256
47/16V
C253
0.15
IC707,711
L.P.F
IC701
LOW BOOST
S704
FILTER
C353 B–
(X1 X10)
0.15
C356
47/16V
HPF
C357 IC706
FLAT
47/16V LOW BOOST
LPF
R359
0 0
6
100
7
5
8 IC712 R360
0
10k
NJM4580E
0
(T1)
C358
100P
R311 3.3k
R309 R310
C308 100P
3.3k 4.7k
IC711
3 4 R460
NJM4580E
C309
10k
(T1)
1
4.7/50V
2
0 0
LPF
FLAT
C455 0.015 C457 R459 –0.6
HPF
100
47/16V
VR706
LOW BOOST
(0dB – +10dB)
C456
C453 47/16V
0.15
C409
9 1
4.7/50V
R410
9P CNJ703 C408 100P
4.7k
9P CNP703 R411 3.3k
0
0
R409
3.3k
B–
B+
B–
B+
8
0
7
C717
0.01
IC716 (2/2)
NJM4580E
(T1)
B–
XM-7557
B+
15
B+
0 0
IC701 R115
0.8 10k
NJM4580E Q102
(T1) 2SC3327-A
5 8
0 LINE SW 0
7
Q101
6
0.8
2SC3624-T1L1718 R117
Q103
10k
LEVEL SHIFT R118
2SC3327 R116
10k 3.3k
LINE SW
C110 15
0.22 0
R112 R113
680 22k
R114 6.8k
R214 6.8k
R212 R213
680 22k 0
C210
0.22
Q201
R216
2SC3624-T1L1718 0.8 10k R218
LEVEL SHIFT 3.3k
Q203 R217
10k
2SC3327-A
2 4
0
1 LINE SW
3 R215
IC701
Q202
0.8 10k
NJM4580E
2SC3327-A
(T1)
LINE SW
0 0
–15
B–
Q302
2SC3327-A
15 B+
LINE SW
0 0
IC706 R315
10k
NJM4580E
(T1) 0.8
5
7 0
Q303
6 8
2SC3327-A R317
R318
LINE SW 10k
Q301
3.3k
2SC3624-T1L1718 0.8 R316
LEVEL SHIFT 10k
C310
0.22 0
15
R312 R313
680 22k
R314 6.8k
R414 6.8k
–0.6
Q401
R412 R413 2SC3327-T1L1718
680 22k LEVEL SHIFT
C410 0 Q403
0.22
2SC3327-A R418
0.8
3.3k
LINE SW R417
10k
R416
2
1 0 10k
0
3 IC706
4
0.8
NJM4580E (T1)
R415
10k
Q402
0 0
–15 2SC3327-A
LINE SW
B+
B–