Sony CFS-828S Service Manual ▷ View online
CFS-828S
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
15
JW901
JW902
JW903
JW904
S901
T901
J901
D901
D902
D903
D904
C901
C902
C903
C904
CNP313 CNP411
F901
F902
F903
(Page 16)
D901
F-8
D902
G-8
D903
F-9
D904
G-8
• Semiconductor
Location
Ref. No.
Location
CFS-828S
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.
IC B/D
C364
R202
R102
RV302
R206
R105
S302
S302
R103
R205
R203
R109
L301
R363
R320
R362
R319
R318
R305
R309
R310
R387
C101
C201
C104
C105
C311
C301
R360
R361
R316
R313
R312
R315
R314
C324
C323
R104
C102
R106
C202
R204
C321
C204
C205
C317
R321
C304
R322
C303
R302
R303
C302
R301
C112
R108
R208
C212
C114
C113
C214
C213
C314
C306
C307
C308
C325
R304
C305
C207
C107
C209
C318
C109
R311
C315
C316
C319
C203
C103
C320
R307
R209
C312
C309
R306
C310
C375
R347
C378
R386
HE301
HRP301
CNP305
CNP306
S304
HP301
J104
J105
M301
CNP303
MIC301
CNP418
T301
R317
R201
R101
C377
J103
J102
CNP302
CNP301
CNJ305
CNJ306
S303
Q308
C208
C339
C108
C206
C106
D305
CNP316
CNP315
Q302
D303
D325
D304
D306
IC301
C313
C326
C211
C111
C328
C329
C322
Q306
Q304
Q307
Q305
Q303
Q321
• Waveform
4Vp-p
1
T301 (REC)
1.0V/div 5µsec/div
12.4µsec
(Page 15)
(Page 19)
CFS-828S
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
IC B/D
JW
JW
J301
J901
D902
D901
D903
D904
C144
C143
R143
R142
R250
R150
C244
C243
R244
R243
R242
C241
R125
R225
R226
R227
R354
R356
C126
R127
R124
R123
R224
R337
R341
R339
C130
C131
C376
R330
R331
R332
R333
IC302
C333
C330
R210
R220
R132
R122
R222
R221
R229
R110
D319
S301
R134
S901
C223
C123
C120
C220
C232
C225
C228
C125
C128
C129
C334
C346
C348
C347
C242
C904
C903
C901
C902
R121
R129
C132
R120
R232
R223
C222
C249
C247
C246
R247
R251
C245
R342
R340
R338
C345
C344
C343
C229
C224
C221
R126
C122
C124
C121
R133
R336
C335
R368
R388
R367
R349
R355
R353
R352
R357
R234
C231
R351
C337
R350
R359
R358
C341
C340
R343
R344
C141
C142
R144
C145
C149
R151
C150
R152
R148
R147
C146
C147
R145
R146
R245
R246
R252
C250
R373
R371
R372
C372
C371
C374
C373
R385
R377
R384
R375
R374
R376
R379
R380
R381
R383
C370
D317
D316
D315
D314
D313
R370
R149
R249
SP303
SP301
SP302
SP304
R345
T901
CNP307
CNP417
C148
C248
R248
F903
F902
F901
CNP311
S306
CNP317
CNJ307
Q322
Q323
D326
C331
Q311
C338
Q312
C336
Q315
Q316
Q318
D309
D308
D307
D307
D311
D310
Q309
Q310
Q317
Q313
Q314
D302
D327
D301
C379
D324
D323
Q319
Q320
W305
W421
CNP411
CNP313
W419
W303
D318
C127
R140
R241
C227
R240
R141
D322
D321
J304
RV301
W302
W306
D320
IC304
IC303
C332
C327
R130
R230
Q301
R378
R382
R347
C349
R346
(Page 18)
CFS-828S
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
BS
T.S.D
BS
FILTER
ST.BY
VCC
POWER
GND
PRE
GND1
PRE
GND2
1
2
3
4
5
6
7
8
10
9
12
11
14
15
13
IC303, 304 BA5417
IC302 AN7338K
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