Schematic Diagram - Filter/Amplifier (1/3) Section - Sony XM-7547 Service Manual

Stereo power amplifer
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5-5. SCHEMATIC DIAGRAM – FILTER/AMPLIFIER (1/3) SECTION –
AMPLIFIER BOARD
C101
R101
4.7/50V
22k
C102 4.7/50V
R102
C851
R851
R103
22k
330
3.3k
4.7M
25V
CNJ807
A
R203
4.7M
MONO
C202
R202
4.7/50V
22k
C201
R201
B
4.7/50V
22k
INPUT
C301
R301
C
4.7/50V
22k
C302
R302
MONO
4.7/50V
22k
R853
R303
3.3k
4.7M
D
R403
4.7M
C402
R402
4.7/50V
22k
C401
R401
4.7/50V
22k
C856 0.1
S851
TEST TONE
R885
R884
R883
R855
4.7k
10k
10k
10k
-15
0
2
4
0
D851
1
1SS184
3
0
IC851-2
NJM4580E(T1)
R886
C850
3.8k
0.01
IC851
PRE AMP
09
• See page 10 for IC Block Diagram.
C889
C886
0.1
0.1
IC801
IC802
PRE AMP
PRE AMP
R107 4.7k
0
0
IC801-1
C106 100P
R181
C104
NJM4580E(T1)
VR801-1
10k
33P
5
0
5KC
7
6
0
0
7
R106
0
15
6
8
IC802-1
0
150
0
5
8
R105 22k
NJM4580E
(T1)
15
C105 47P
R281
10k
IC802-2
LEVEL
-15
0
NJM4580E
(MIN-MAX)
4
0
R205 22k
0
-15
3
(T1)
1
0
C205 47P
0
2
R206
0
2
150
C206 100P
4
0
0
VR801-2
3
R207 4.7k
C204
IC801-2
5KC
33p
NJM4580E(T1)
R307 4.7k
IC803, 809
IC807-1
C304
NJM4580E(T1)
VR802-1
C306 100P
33P
5
H.P.F
5KC
0
7
6
7
0
0
0
8
15
R306
0
6
IC808-1
5
150
0
8
R305 22k
NJM4580E
(T1)
15
C305 47P
0
R382
0
LEVEL
-15
IC808-2
22k
NJM4580E
(MIN-MAX)
4
C405 47P
0
-15
3
(T1)
R381
1
0
10k
2
R405 22k
0
R406
0
2
4
150
0
C406 100P
1
0
R481
VR802-2
R407 4.7k
3
C404
10k
IC807-2
5KC
33P
NJM4580E(T1)
R482
0
22k
IC807
IC808
0
PRE AMP
PRE AMP
R858
R859
4.7k
10k
15
R856
0
6
8
10k
0
7
5
0
IC851-1
NJM4580E(T1)
R857
15k
R861
C858
180k
0.01
CNP808 9P
CNJ808 9P
S801-3
S801-1
C154
VR805
0.15
C157
FILTER
R188
R185 10k
47/16V
10k
C152 0.15
(50Hz–400Hz)
HPF
R184 10k
VR805-3
C156
VR805-1
FLAT
47/16V
C151 100P
R186 2.2k
20KE
20KE
C153 0.015
C155 0.015
LPF
6
R187 2.2k
6
6
0
7
7
R183
IC804-1
7
0
0
R190
6.8k
0
0
NJM4580E
5
10k
5
8
IC803-1
5
8
(T1)
8
IC805-1
NJM4580E(T1)
NJM4580E(T1)
15
15
15
-15
-15
-15
IC803-2
IC804-2
4
NJM4580E(T1)
4
IC805-2
NJM4580E(T1)
4
R290
0
0
NJM4580E
0
1
1
1
10k
R283
3
3
0
3
(T1)
6.8k
C256
2
2
0
2
R267 2.2k
47/16V
LPF
FLAT
C251 100P
VR805-2
R286 2.2k
C253 0.015
VR805-4
C255 0.015
HPF
20KE
R284 10k
20KE
R285
C257
R289
10k
47/16V
10k
C252
C254
0.15
0.15
SW801, 802
S801-2
S801-4
IC804, 811
FILTER
S802-3
(X1 X10)
S802-1
L.P.F
C352
C354
VR806
0.15
0.15
R385
FILTER
C357
R389
10k
47/16V
10k
(50Hz–400Hz)
HPF
R384 10k
VR806-3
C356
VR806-1
FLAT
20KE
47/16V
C351 100P
20KE
R386 2.2k
C353 0.015
R387 2.2k C355 0.015
LPF
6
6
6
0
7
7
IC810-1
7
R383
5
0
5
0
5
R390
0
6.8k
NJM4580E
8
8
0
8
10k
(T1)
IC809-1
IC811-1
NJM4580E(T1)
NJM4580E(T1)
15
15
15
-15
-15
-15
IC809-2
NJM4580E(T1)
IC811-2
4
4
IC810-2
R490
4
0
0
NJM4580E
NJM4580E
1
R483 6.8k
1
3
0
3
10k
3
(T1)
1
(T1)
2
2
2
0
R487 2.2k
0
R486 2.2k
C453 0.015
LPF
FLAT
C451 100P
VR806-2
VR806-4
C455 0.015
C456
HPF
20KE
20KE
R484 10k
47/16V
R485
R489
C457
10k
10k
C452
C454
47/16V
0.15
0.15
S802-2
S802-4
CNJ809 9P
CNP809 9P
11
11
1
9
R108
IC806-1
3.3k
15
1
9
NJM4580E(T1)
0
8
5
0
7
0
6
Q101
R110 3.3k
R109
2SC3624-T1L1718
LEVEL SHIFT
4.7k
C107 100P
C109
0.22
0
S803-1
C108
R111
R112
4.7/50V
680k
22k
LOWBOOST
R113 6.8k
(0dB—+10dB)
R213
6.8k
C208
R211
R212
4.7/50V
680
22k
0
C209
C207 100P
0.22
Q201
2SC3624-T1L1718
LEVEL SHIFT
R208
R209
R210
-15
3.3k
4.7k
3.3k
S803-2
2
4
0
1
0
3
0
IC806-2
NJM4580E(T1)
IC805, 810
L.P.F
IC806
IC812
LOW BOOST
LOW BOOST
S804-1
IC812-1
NJM4580E(T1)
0
5
7
0
0
6
8
15
R308
R309
R310 3.3k
Q301
3.3k
4.7k
2SC3624-T1L1718
LEVEL SHIFT
C307 100P
C309
C753
0.22
0
0.1
C308
R311
R312
4.7/50V
680
22k
S804-2
R313 6.8k
LOWBOOST
(0dB—+10dB)
C754
R413 6.8k
0.1
R411
R412
680
6.8k
0
C408
C409
9
1
4.7/50V
0.22
R409
C407 100P
Q401
4.7k
2SC3327-T1L1718
R410 3.3k
2
LEVEL SHIFT
0
9
1
1
0
IC812-2
3
0
4
NJM4580E(T1)
R408
-15
3.3k
XM-7547
Q102 2SC3327-A
S805-1
LINE SW
0
0
ON
R114
10k
0.8
OFF
0
0
0.8
R116
Q103
10k
2SC3327-A
R115
R117
LINE SW
10k
3.3k
15
-0.6
-0.6
15
R215
0.8
10k
R217
3.3k
Q203
R216
2SC3327-A
10k
LINE SW
0
0
R214
0.8
10k
OFF
0
0
ON
Q202 2SC3327-A
LINE SW
S805-2
R882
1M
Q302 2SC3327-A
S806-1
LINE SW
ON
0
0
R314
10k
OFF
0.8
0
0
Q303
2SC3327-A
R316
LINE SW
10k
R317
0.8
R315
3.3k
10k
15
-0.6
-0.6
Q403
15
2SC3327-A
R415
R417
LINE SW
10k
3.3k
0.8
R416
10k
0
0
R414
0.8
10k
OFF
0
0
ON
Q402 2SC3327-A
LINE SW
S806-2
7
8
9 10
TO AMPLIFIER BORAD (3/3)
(Page 14)

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