Sony CFS-929S Service Manual ▷ View online
CFS-929S
17
17
6-6. PRINTED WIRING BOARDS — POWER SECTION — • Refer to page 12 for Circuit Boards Location and page 14 for Common Note on Printed Wiring Boards.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
JW903
JW904
JW905
JW906
D901
D902
D903
D904
C901
C902
C903
C904
S901
J902
J901
F901
F902
F903
T901
JW901
JW902
D905
F904
C905
(Page 16)
D901
F-9
D902
F-8
D903
F-10
D904
G-8
D905
E-5
• Semiconductor
Location
Ref. No.
Location
CFS-929S
18
18
6-7. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 14 for Common Note on Schematic Diagrams and page 20 for IC Block Diagrams.
TAPE
CONTROL
R102
R202
R110
R210
D371
R105 R205
C375
R103
R203
L301
R211
R304
R360
R361
R111
R347
C305
R116
R117
R118
R119
R133
R134
R135
R234
R235
R214
R302
IC301
RV302
S305
J306
Q372
C201
C311
C204
C112
C212
C316
C318
C315
C109
C118
C302
C226
C126
C301
R301
C317
C202
C206
R206
C106
C102
R106
R204
C105
C104
R104
C205
R321
C304 C303
R303
R108
R324
R207
R107
C115
C215 C114 C214 C314
C216
R212
R213
C220
C223
R221
R222
R233
R129
C134
R229
R225
C321
R341
C307
C306
C103
C203
C319
C209
C308
C116
R115
C119
SOUND
EQUALIZER
R120
R122
C123
R121
R112
C117
R113
R114
R125
C309
C310
R306
R305
S303
R307
C312
C120
R153
R131
R228
R253
R231
R128
C234
R320
R380
R356
R363
C371
R372
R369
R373
R313
R315
HE301
CNP301
HRP301
S304
HP301
CNP302
SHIELD
PLATE(CN)
J103
J102
J104
J105
M301
MIC301
R334
R316
R317
R209
R109
C101
R201
R101
R310
R309
CNP303
R319
R318
Q103
Q204
Q104
Q105
Q205
D374
D306
D304
Q303
D305
CNP304
CNP305
CNP309
CNP310
CNP306
R358
D379
D378
Q305
Q304
Q307
C327
C326
C326
C111 C211
R208
R368
C137
C313
Q308
T301
C345
C108 C208 C107 C207
C322
R364
R308
C379
C329
R352
D377
R354
R355
R353
D323
D324
R322
R312
Q302
R336
D342
CNP307
J101
C237
Q317
Q201
Q101
C320
Q306
Q102
D309
TONE AMP
IC B/D
(Page 15)
(Page 19)
• Waveform
52Vp-p
1
T301 (REC)
10V/div 5µsec/div
12.5µsec
CFS-929S
19
19
6-8. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 14 for Common Note on Schematic Diagrams and page 20 for IC Block Diagrams.
IC B/D
IC B/D
J901
D904
D903
D901
D902
R124
C333
C332
C330
R127
R227
R330
R331
R332
R333
D319
R226
R344
IC302
R223
R224
R136
R138
R236
R248
R148
S901
IC304
R349
S301
D905
J902
D320
R239
R139
Q371
C130
C230
C128
C129
C344
C228
C229
C232
C231
C132
C131
C152
C222
C224
C221
C346
C121
C124
R123
C122
R126
C140
R137
R238
R232
C240
C233
C133
R325
C238
C138
R146
R147
C136
C236
C343
R345
C342
C347
C341
C252
C249
R251
R151 C149
R343
R350
R374
R323
R376
R377
R375
C381
R365
C372
C373
C377
R326
C376
T901
CNP311
C340
J301
C148
C248
R249
R149
R250
R150
SP304
SP302
J304
D318
D313
D314
D315
D316
D317
CNP417
S306
IC303
D341
Q106
Q206
D308
D312
D307
D310
D311
Q312
D372
D375
D325
CNP308
R367
Q309
R362
R329
Q310
C331
C125
C225
R237
Q107
Q207
R247
D376
R246
Q314
Q313
R130
R230
Q315
R339
R338
R359
C325
C334
R337
C335
Q301
R335
R327
R328
C323
C227
C127
R243
R143
C241
C141
R144
R145
R245
R244
C142
C143
C243
C242
R252
R254
R152
R154
D322
D321
RV301
SP303
SP301
C150
C250
C348
R346
R351
C902
C901
C904
C903
F901
F902
R378
Q373
R366
R311
D373
R371
F903
F904
R132
Q316
C905
C378
LED DRIVER
TREBLE/BASS
CONTROL
BUFFER
POWER ON
INITIAL
MUTE
(Page 18)
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
Replace only with part number specified.
CFS-929S
20
20
IC1 CXA1538S
• IC Block Diagrams
30
3
2
1
4
5
6
7
8
9
10
13
12
14
15
11
VCO
PD 1
PD 2
DECODE AMP
1/2 COUNTER
REGULATOR
FM FE
AM FE
TUNING IND
RIPPLE FILTER
AM IF/DET
FM IF/
DISCRI
MUTING
MULTIPLEX
REGULATOR
MO/ST
SW
AUTO
BLEND
DETUNE
MUTING
MUTING
CONTROL
29
28
27
26
25
24
23
22
21
20
19
18
17
16
DC
AMP
BU
AMP
BU
AMP
GND
PLL LPF2
PILOT DET
LPF2
PILOT DET
LPF2
PLL LPF1
RCH OUT
LCH OUT
ST IND/
VCO CHECK
VCC
RIPPLE
FILTER
AGC AFC1
AGC AFC2
GND
TUNE IND
FM IF IN
AM IF IN
BAND SELECT
VCO
MUTE
REG
AFC
MPX REG
FM DISCRI
AM OSC
FM OSC
FM RF
AM RF IN
FM RF IN
FE GND
FM/AM
FE OUT
DC
AMP
ST
MO
REC EQ
REC EQ
LOGIC
32
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
14
31
30
29
28
27
26
25
24
23
22
21
20
18
19
17
BIAS IN
LINE-OUT-R
LINE-OUT-L
CD-IN-R
CD-IN-L
RADIO-IN-R
RADIO-IN-L
MIC-IN
A-L
B-L
B-R
TR-B
TR-C
TAPE-MODE
FNC
LPF-L
LPF-R
τ
BIAS
GND
VCC
REQ-EQ-L
REC-EQ-R
REC-NF-L
REC-NF-R
TAPE-NF-L
TAPE-OUT-L
A-R
TAPE-NF-R
TAPE-OUT-R
MIC/HS
MIC-NF
HS:1.40V OUT
(LOW IMP.)
NOR:0.35V OUT
(HIGH IMP.)
ECM:OPEN
MIC:LOW
τ
IC301 BA3426AS
BASS
TREBLE
TREBLE
BASS
22
19
16
21 20
18
17
FLAT
FLAT
FLAT
FLAT
MIX
MIX
MIX
VREF
15
MUTE
τ
14
RR
ANALOG SWITCH
13
VCC
12
GND
REGULATOR
1
2
3
4
5
6
7
9
8
10
11
RCH IN
RCH NFB1
RCH BASS
RCH TREBLE
RCH NFB2
RCH OUT
CLASSIC
ROCK
JAZZ
POPS
FLA
T
GND
VCC
RIPPLE
REJECTION
MUTE
τ
REF VOL
TAGE
LCH OUT
LCH NFB2
LCH TREBLE
LCH BASS
LCH NFB1
LCH IN
3
2
1
5
7 8
10
4
6
9
11
13
12
14
RIPPLE FILTER/
STARTING TIME
IN1
PRE GND
IN2
STAND BY
SIGNAL MUTE
VCC1
VCC2
+OUT2
PWR GND2
-OUT2
-OUT1
PWR GND1
+OUT1
CH 1
CH 2
IC303 LA4663-B
IC302 AN7338K
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