Schematic Diagram - Amp Section (1/2) - Sony HCD-S550 Service Manual

HCD-S550/S880
7-25. SCHEMATIC DIAGRAM – AMP Section (1/2) – •
CN300
5P
32V
32V
PGND
PGND
12V
(Page 66)
CN302
2P
PGND
M301
(FAN) 12V
CN301
12P
(Page 48)
CN305
17P
INIT
PGMUTE
NSMUTE
DGND
SCDT
SHIFT
DGND
LAT1
LAT2
LAT3
DGND
(Page 48)
EN
DIAG
HPSW
DGND
RELAY
HPMUTE
(CHASSIS)
L901
33µH
Q900
DTC343TK
MUTING
J900
C904 C902 R903
PHONES
0.01 0.1 4.7k
R900
4.7k
DTC343TK
C903 MUTING
0.01
L900
33µH
See page 67 for Waveforms.
(1/2)
C300
2200
35V
+5V REGULATOR +3.3V REGULATOR
IC302 IC303
BA033FP-E2
BA05FP-E2
R397 R395
180 180
I O I
G G
C320
C309 C310 C323
100
0.1 0.01 0.01
10V
R139
0
R308
1.0k
FB307
C329
220
10V
C330
0.01 C336
100 C352
10V 0.01
FB305
10UH
D2
BCKO
LRCKO
FL300
6.5V
6.5V
DGND
DGND
R315 100 D1
D1
R316 100 D2
D2
R317 100 D3
D3
R318 100 BCKO
BCKO
R319 100 LRCKO
LRCKO
DGND
R322 47 SCK
SCK
DGND
C373
0.01
SCK
R334 470 INIT
R336 470 PGMUTE
R338 0 NSMUTE
D181
MA111-TX
R339 470 SCDT
R340 470 SHIFT
R341 470 LAT1
R342 470 LAT2
R344 470 LAT3
R346 0 EN
R347 0 DIAG
D197
MA111-TX
C194
0
C991
R902
R991
0.047
68 L903
0
FB803
CN900 CN309
FB805
5P 5P
HP.L-CH HP-SW
GND HP-MUTE
HP.R-CH HP.R-CH
FB804
Q901 FB311 0
HP-MUTE GND
R992
HP-SW HP.L-CH
L902
0
R901
C992
68
0.047
(CHASSIS)
•
See page 72 for IC Block Diagrams.
R398 R399
47k 4.7k
Q190
2SB1013 Q191
DTC124EKA
Q190,191
FAN MOTOR CONTROL
O
C325
C324
100
0.01
10V
FB308
C348
0.01
C349
0.01
C350
100
10V
R321
100
C355
0.1
C368
0.1
R330
100
STREAM PROCESSOR
IC308
CXD9634Q
R333
100
C372
0.1
C378
0.1
R335
100
C390 C391
0.01 0.01 R193
0
R192 R191
22k 2.2k
D192
UDZSTE-
1713B
Q192
DTC124EKA
POWER ON
MUTING
C474
470
16V
R470
22k
R471 C471 R473 R472
22k 120p 22k 22k
C472
100p
R474
33k
C490
R491 C491 R475 C473
100
10k 0.1 24k 100p
16V
C493
R490 R485 C483
47 VCC
10k 24k 100p
35V
HEADPHONE AMP
IC401
NJM4580E(TE2) GND
C492
0.1
R484
R481 C481 R483
33k
22k 120p 22k
FB310 C482
0
100p
R480 R482
C484
22k 22k
470
FB306 16V
0
C192
0
52 52
R301
1.0k
C306 C311
0.01 0.01
FB304
C326
47
6.3V
C327
0.01
D3
BCKO
LRCKO
STREAM PROCESSOR
IC305
CXD9634Q
C344
0.01
C358
0.01
SCK
R325
22
R337
1.0k
FB315
C387 C388
0.01 0.01
C393
0.01
D1
BCKO
C392
LRCKO
100
10V
C409
0.01
STREAM PROCESSOR
IC310
CXD9634Q
SCK
C415 C416
0.01 0.01
A19
A1
A2
A3
A4
FB301
A5
C312
100
10V
A6
R304
100
C328
0.1
C331
0.1
R305
100
A7
A8
R307
100
C337
0.1
C351
0.1
R320
100
A9
C359
0.01
A10
A11
(Page 53)
A12
A13
FB314
C389
100
10V
R343
100
A14
C394
0.1
R348
100
A15
C399
0.1
A16
R349
100
C408
0.1
A17
R350
100
C410
0.1
A18