Schematic Diagram - Amp Section (3/4) - Sony SA-WSLF1 Service Manual

SA-WSLF1
4-16. SCHEMATIC DIAGRAM — AMP SECTION (3/4) —
(3/4)
CN300
2P
FAN
CNP303
5P
HP-R
C
GND
HP-L
VIDEO-I/O
HPSW
BOARD
CN905 HP-MUTE
(Page 15)
CNP305
2P
3.3V
12V
C366
C367
220
(Page 31)
16V
CNP304
4P
GND
L
GND
C350
28.5V
0.1
15V-RELAY
28.5V
BOARD
CN952
(Page 31)
SA-WSLF1
• See page 34 for IC Block Diagrams. • See page 32 for Waveforms.
R425 220
R426 150
Q303
2SB1013 R428
FAN DRIVE 47k
C248
R429
47
4.7k
16V
Q304
DTC124EKA-T146
FAN DRIVE
C361
C360
47
0.1
25V
C357 R337 R349
100p 22k 2.2k
R343 C359 R341 R336 C352
0 470 33k 22k 100p
10V
C354 R339
100p 24k
C353 R338
100p 24k
R350 C363
2.7k 0.1
VCC
HEADPHONE AMP
IC301
GND
RC4580IDR
R340 R335 C351
33k 22k 100p
R342 C358 C356 R334
0 470 100p 22k
10V
HP MUTE
0.1
C355
C370 C368
100
0.1 0.01
16V
NSP MUTE
SOFT MUTE
PGMUTE
SCDT
SHIFT
LAT1
R346
470
OVF
R333
22k
R332 R322 R348
22k 10k 470
INIT
LRCK
C362
BCK
100
10V
DATA1
R323 0
SCK
C310
0.1
R331
22k
R330
22k
HPSW
VOUT C375
C374
100
R400 +1.8V REGULATOR 0.01
GND NP 16V
100k
IC303
TK11118CSCL-G
IC B/D
C371
0.01
26 26
(Page 24)
R325
0
SL301
C329 C330 C331
C308
47 47 47
0.1
16V 16V 16V
5
STREAM PROCESSOR
IC108
CXD9788AR
IC B/D
4
R320 R321
0 0
R393
22
FB301
R394
1M
VCC
OSC GND
IC305
MC74VHC1GU04
C380
C381
22
0.01
25V
C301
0.1
C302
0.1
C303
0.1
R374
560
38
R373
0
39
40
41
R372
0
42
R371
560
45
C304
0.1
C305
0.1
4
C306
0.1
(Page 27)
C309
0.1
C382 C383
0.001 10p
R396
100
L302
1µH
X450
49.152MHz
C384
5p
43
44
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