Sony CFS-1085S Service Manual ▷ View online
CFS-1085S
13
13
4-2. BLOCK DIAGRAMS
B+
B+
CF3
B+
ANT1
FM/SW
TELESCOPIC
ANTENNA
S1-8
S1-5
S1-7
S1-6
S1-6
S1-3
S1-2
SW1
TRACKING
SW2
TRACKING
MW
TRACKING
L3,CT3
CT3
CT2
CV1(3/4)
CV1(2/4)
CT1 CV1(1/4)
L2, CT2
FM
FREQUENCY
COVERAGE
L4, CT4
MW
FREQUENCY
COVERAGE
L8, CT8
SW2
FREQUENCY
COVERAGE
L6, CT6
SW1
FREQUENCY
COVERAGE
L1, CT1
FM
FREQUENCY
COVERAGE
IN
IN
FE
OUT
CF4
CV1(4/4)
CT6
CT8
CT4
D5
S1-4
16
22
22
14
24
13
18
20
1
7
8
9
10
6
8
22
17
8
9
J304
CD/TV
LINE IN
L
R
HE301
ALC
ALC
DET
5
4
23
DET
S302-2
PB
r
REC
S302-1
PB
r
REC
S401
MEGA BASS
OFF
r
ON
BIAS
OSC
Q301
MIC
REC
REC
Q340
B+
RADIO B+
RADIO B+
MIC
I/EX
I/EX
17
RADIO
L.RAD
R.RAD
MIC
R.CD
L.CD
L.IN
L.RO
L.LO
R.LO
R.IN
R.RO
TAPE EQ, REC AMP,
FUNCTION SWITCH
IC301
MEGA BASS
Q102
MEGA BASS
Q202
MEGA BASS
CONTROL
Q310
B+
ANALOG SWITCH
D311
FLAT
D312
GROOVE
D313
LIVE
D314
POPS
D315
CINEMA
RV301
VOLUME
11
10
3
5
12
13
STBY
8
STBY
J302
SPEAKER
J301
PHONES
SP101
SPEAKER
+
–
SP102
SPEAKER
SP201
SPEAKER
+
–
SP202
SPEAKER
LEFT
RIGHT
11
10
3
5
12
13
POWER AMP
IC102
POWER AMP
IC202
GEQ AMP
IC302
Q101
MUTE
Q201
MUTE
S901
VOLTAGE
SELECTOR
220-240V
110-10V
J901
-
AC IN
R
F901
F902
T901
POWER TRANSFORMER
MUTE DRIVE
Q309
MUTE DRIVE
Q307
GEQ CONTROL
Q103, 203, 303
GEQ CONTROL
Q204, 205, 304
B+ ON/OFF
Q305, 306
6V REG
Q302
MOTOR
SWITCH
Q308
M
M601
MOTOR
S601
MD POWER
S301-1
FUNCTION
CD/TV
LINE IN
R
RADIO
r
TAPE/RADIO OFF
S301-1
FUNCTION
CD/TV
LINE IN
R
RADIO
r
TAPE/RADIO OFF
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS, 9V
RECT
D901-904
S303
SOUND SELECT
D101
D201
CV1(1-4)
TUNING
3
1
5
VOLTAGE DET
IC303
D3
FM STEREO
D302
OPR/BATT
26
• Signal path.
k
: FM
,
: AM
E
: PB
a
: REC
CFS-1085S
14
14
D101 B-6
D201 B-6
D301 B-6
D302 B-9
D303 D-5
D308 D-7
D310 C-7
D311 D-12
D312 D-11
D313 D-11
D314 D-11
D315 D-10
D317 D-5
D320 E-5
D321 F-8
D322 F-7
D326 E-8
D901 D-3
D902 D-3
D903 C-3
D904 C-3
D201 B-6
D301 B-6
D302 B-9
D303 D-5
D308 D-7
D310 C-7
D311 D-12
D312 D-11
D313 D-11
D314 D-11
D315 D-10
D317 D-5
D320 E-5
D321 F-8
D322 F-7
D326 E-8
D901 D-3
D902 D-3
D903 C-3
D904 C-3
IC102
B-5
IC202
B-7
IC301
D-6
IC302
F-7
IC303
D-4
Q101
B-7
Q102
G-6
Q103
C-8
Q201
C-6
Q202
G-6
Q203
C-7
Q301
F-6
Q302
D-5
Q303
C-8
Q305
D-5
Q306
E-4
Q307
D-5
Q308
D-8
Q310
B-6
Q311
E-10
Q312
E-10
Q340
C-7
4-3. PRINTED WIRING BOARD – MAIN SECTION –
• See page 12 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
: Pattern of the rear side.
MAIN BOARD
POWER BOARD
E
C
B
E C B
B C E
B C E
E C B
E C B
E C B
B C E
B C E
E
C
B
E
C
B
E
C
B
E
C
B
MIC BOARD
GE SW BOARD
t
t
M601
MOTOR
S601
(MD POWER)
M
CD/TV
LINE IN
L
R
B
B
L-CH
R-CH
HE301
ERASE HEAD
HRP101
RECORD/
PLAYBACK
HEAD
C
C
VOL BOARD
11
(11)
1-682-945-
ON
OFF
t
RED
MEGA BASS SW BOARD
11
(11)
1-683-142-
LED BOARD
T901
POWER TRANSFORMER
VOLTAGE SELECTOR
220–240V
110–120V
CNJ901
-
AC IN
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS, 9V
RIGHT
SPEAKER
LEFT
A
MAIN
BOARD
CN304
D301
J301
PHONES
CNP308
R221
R222
R224
R122
R123
R124
C116
C142
C114
R121
C117
C118
C217
C214
C242
C327
C219
C219
C326
C328
C329
C119
R315
C301
S302
S302
REC
PB
IC302
R101
R321
Q301
C320
C323
CNP305
IC303
R361
C321
C318
R319
Q306
R325
R324
Q305
R365
D303
Q302
D320
C334
C331
C332
C333
IC102
C124
C125
C126
C134
C132
C232
R130
R131
IC202
C223
C224
C225
C226
R230
R226
R225
R231
C234
C230
C229
C228
C130
C127
R232
R132
R236
R136
R363
D302
D302
OPR/BATT
J304
ECM301
R364
J306
R320
R126
C133
C330
S301
FUNCTION
TAPE/
RADIO OFF
RADIO OFF
RADIO
CD/TV
LINE IN
T301
C310
C221
C231
C121
C212
C216
C131
C322
C227
R326
R360
R322
R310
Q307
CNP301
C103
C140
R106
R105
R107
C109
R103
R204
C209
R203
WHT
RED
C309
C316
C312
R301
C308
C104
C101
R102
R202
C304
R303
C302
R304
C313
C102
R330
D317
C305
C337
R337
C105
C106
R309
C210
C339
CN304
R339
R323
C303
R120
R327
Q310
C342
D326
R347
S301
R345
R346
C123
R341
R125
C233
R237
D101
D201
R110
R143
R210
R243
C135
C235
C129
C128
C211
D321
D322
JW329
C111
C143
C244
C144
C243
R349
R366
R201
D310
R329
R220
CNP303
Q308
C107
R104
IC301
C306
R306
R206
R205
C203
C335
R207
C207
C205
C206
C202
C201
D308
C204
C208
C336
C315
C108
R308
R307
C110
C311
JW319
C307
R334
R137
R353
R138
R139
C120
C122
C343
C112
R142
R238
C220
C218
C344
R223
C222
R239
R218
JW304
JW305
JW309
JW310
JW311
JW312
JW313
JW314
JW315
JW324
JW325
JW326
JW327
JW328
JW330
JW331
JW333
JW334
JW336
JW339
JW340
JW341
JW343
JW344
JW345
JW346
JW347
R140
R118
R240
R242
Q202
Q102
Q103
R117
R112
R111
C136
R114
Q303
R348
R113
R213
C236
R211
R212
Q203
Q214
Q217
C241
Q205
C240
R251
Q204
R253
R252
Q340
Q304
R350
R254
R255
RED
RED
C338
C340
Q201
R228
R352
R128
Q101
C341
D305
R312
Q309
R313
R311
D304
B
C
E
B
C
E
11
(11)
1-683-140-
S303
SOUND SELECT
S303
11
(11)
1-683-139-
11
(11)
1-682-946-
1
2
2
3
4
4
1
2
3
1
2
3
1
2
3
RV301
VOLUME
R115
R215
C137
C237
C213
C113
C139
C239
11
(11)
1-683-143-
S401
MEGA
BASS
R351
CNP313
CNP311
JW335
R344
R333
R342
R343
D311
FLAT
D312
GROOVE
D313
LIVE
D314
POPS
D315
CINEMA
S901
F902
R901
1
2
3
C906
CNP902
CNP901
D904
D903
D901
D902
C902
C901
C903
C904
F901
11
(11)
1-683-141-
+
–
+
–
k
Q311
Q312
R317
R331
R362
2
3
4
5
6
7
8
9
10
11
12
13
A
1
B
C
D
E
F
G
H
CFS-1085S
15
15
4-4. SCHEMATIC DIAGRAM – MAIN SECTION –
• See page 12 for Notes.
• See page 12 for Waveforms.
• See page 33,34,35 for IC Block Diagrams.
• See page 12 for Waveforms.
• See page 33,34,35 for IC Block Diagrams.
C306
R306
C209
R207
R205
C205
C203
R206
C206
C211
C207
R204
CNP301
R203
C311
R103
C111
C107
R104
C106
C105
C109
R107
R105
C103
R106
C305
IC301
C302
R304
R330
R303
C304
C303
S302(2/2)
R323
Q340
Q301
R322
C322
R321
R320
T301
C323
R310
C310
C320
J304
C301
R101
R201
R102
R202
C201
C101
D310
C110
C210
Q307
CNP304
R337
D317
C314
S302(1/2)
D
308
R307
C307
R309
C309
R308
C208
C108
R239
R139
R138
R238
C122
C222
C220
C120
C308
C315
C312
C102
C104
R118
R218
C202
C204
Q202
R220
R240
C212
R242
C112
R142
R140
Q102
C221
C231
C113
C213
C237
C137
R115
R215
RV301
C239
C227
R230
C228
C229
C22
6
R232
Q304
R253
C241
R255
R350
R349
C340
C338
R348
R347
Q205
R251
C240
R214
R252
R254
R222
C218
C217
Q103
R117
R112
R113
C326
C329
C328
C327
R224
Q303
R114
C
225
C223
D32
6
Q310
D311
D312
D313
D314
D315
R342
R343
R344
S303
R317
D304
R311
Q309
R313
R312
C341
D305
D320
Q302
C334
IC303
D303
R365
R325
R334
CNP305
R361
C321
Q308
CNP303
M601
R319
R326
Q306
R324
D302
R
362
C331
C332
D201
C235
R237
R137
C133
C233
D101
R236
J301
C128
C129
R132
C127
C130
R128
C12
5
C1
23
R1
30
C339
C126
C124
C219
R315
R120
R301
R329
R327
R122
C118
R124
C117
D322
R346
R345
D321
C116
C119
R213
C236
R212
Q203
R217
CNP902
R901
C906
C901
C902
D902
D901
D904
D903
C904
C903
F901
S901
T901
CNP901
Q305
Q204
ECM301
S301(1/2)
CNJ901
S601
SP102
SP101
SP201
SP202
HRP101
HE301
C121
C131
C136
R123
C337
IC302
R131
C230
R223
R360
R231
R228
R136
S401
C335
C140
C313
C214
C216
R221
R121
C114
R339
C336
C333
R364
C318
R367
F902
R353
R352
C316
C139
R125
R126
C135
C224
C234
R225
R226
C232
C132
C142
C343
C242
C344
Q312
Q311
R331
R333
C243
C143
C144
C244
R111
R211
R351
R363
R366
Q101
D30
1
R
341
Q201
C330
R110
R210
R243
R143
C342
C134
J306
IC102
IC202
47
16V
1M
100
10V
10V
68
68k
0.0022
0.047
2.2k
0.001
100p
470p
15k
4P
47
470
10V
10V
47
100p
470p
15k
0.001
0.0022
100
10V
68
68k
0.047
2.2k
10
50V
TA2068N
0.1
50V
50V
1.5k
10k
100
0.001
0.1
50V
50V
150
KRA111M-AT
KTC3198GR-AT
10
2200p
6.8k
150
BIAS COIL
470p
22k
0.01
47
16V
0.01
47k
47k
3.3k
3.3k
0.47
50V
0.47
50V
1SS133T-77
0.47
50V
0.47
50V
KRA102M-AT
6P
100k
1SS133T-77
1000p
1SS133T-77
10k
10
50V
10k
10
50V
10k
10 50V
10 50V
6.8k
6.8k
1k
1k
0.22
0.22
0.1
0.1
10
50V
1000p
100
10V
1000p
100p
100k
100k
1000p
100p
KTC3198GR-AT
10k
1k
10
50V
1k
10
50V
1k
1k
KTC3198GR-AT
0.22
0.1
1
50V
1
50V
4700p
4700p
1k
1k
20k
1
50V
100
10V
10V
220
0.22
0.22
100p
10k
KRC107M-AT
220k
1
50V
100k
1k
100
100
10V
10V
1
50
100k
2.2k
KTC3198GR-AT
100k
1
50V
1k
4.7k
100k
2.2k
0.0047
0.1
KTC3198GR-AT
100k
1k
10k
47
16V
100
10V
22
50V
10
50V
470
KTC3198GR
1k
100p
47V
16V
1SS133T-77
KRC110M
L-34HD
L-34HD
L-34HD
L-34HD
L-34HD
10k
10k
10k
680
1SS133T-77
1k
KTA1266-GR
47k
1k
4.7
50V
1SS133T-77
1SS133T-77
2SC2001
0.01
MM1468XD
RD6.8EB2
220
10k
2.2k
4P
22k
100
10V
2SC2001
4P
2.2k
10k
KRC107M-AT
10k
L-34HD
680
100
10V
0.01
1SS133T-77
0.22
1k
1k
10
50V
10
50V
1SS133T-77
100
0.22
0.22
10k
100
10V
10V
100
10V
10V
1k
10
0p
47V
16V
220
4700
16V
100p
47V
16V
16V
1
50V
47
10k
47
1.5k
1.5k
2.2k
0.0047
470
0.1
1SS133T-77
10k
10k
1SS
133T-77
2200p
1
50V
10k
0.1
1k
KTC3198GR-AT
100k
4P
2.2k
1000
16V
0.022
0.022
2A2M
2A2M
2A2M
2A2M
0.022
0.022
T315mAL
3P
KTA1266-GR
KTC3198GR-AT
0.22
0.1
0.1
1k
10
50V
AN7338K
1k
100
10V
1k
1k
1k
1k
100
100p
100p
100
10V
10V
100p
2200p
3.3k
3.3k
100p
6.8k
10
50V
470
10V
0
47
10V
100k
T2.5AL
10k
6.8k
4.7
50V
50V
1
50V
2.2
2.2
0.22
47V
16V
16V
100
16V
16V
2.2
2.2
10
50V
10
50V
100p
100p
100p
100p
KRC107M-AT
KRC107M-AT
2.2k
2.2k
0.01
0.01
0.01
0.01
220
220
47k
330
3.3k
DTC343
1SS
133T-77
1M
DTC343
2.2
50V
680
680
6.8k
6.8k
1
50V
100
10V
BA5417
BA5417
R
L
AGC
GND
MIC.NF
MIC
I/EX
I/EX
REC
VCC
TAPE
MIC
RADIO
V.REF
PB
REC
M
U
TE
+B
R
CH
GND
LCH
R.PO
R.CD
R.RAD
R.LO
LLO
L.RAD
L.CD
LPO
L.NF
L.RO
L.IN
CONT
NC
VM
GND
VCC
TC
NC
NC
VOUT
GND
9V
AC
4.5V
RIN
NFIR
B
FR
TFR
N
F2R
RO
UT
PO
P
S
FLAT
GN
D
VCC
RR
M
U
TE
VREF
LOU
T
N
F2L
TFL
BFL
NF1L
LIN
G
ND
G
ND
GN
D
GND
RIN
R,RO
R.NF
SP
OUT
SPO
UT
VC
C
ST
.BY
SPOU
T
SPO
UT
VCC
ST.BY
CIN
EM
A
LIVE
GR
OO
VE
ST LED +B
PB
REC
GROOVE
LIVE
POPS
CINEMA
(MOTOR)
(MD POWER)
FLAT
RIN
G
ND
GN
D
LIN
VOLUME
POWER AMP
POWER AMP
SOUND SELECT
MUTE DRIVE
REG
+B ON/OFF
VOLTAGE
DET
FUNCTION
TAPE/RADIO OFF
RADIO
CD/TV
LINE IN
S301
FUNCTION
TAPE/RADIO OFF
RADIO
CD/TV
LINE IN
S301
VOLTAGE SELECTOR
120V
240V
220V
110
POWER
TRANSFORMER
SWITCH
MOTOR
+B ON/OFF
OPR/BATT
MUTE
MUTE
GEQ CONTROL
GEQ CONTROL
GEQ CONTROL
BUFFER
BUFFER
GEQ CONTROL
MEGA
BASS
BASS
MEGA
BASS
BASS
MIC REC
BIAS OSC
TAPE EQ,REC AMP,
FUNCTION SWITCH
GEQ AMP
ON
OFF
2
1
3
4
5
6
7
1
2
3
HEAD
RECORD/
PLAYBACK
HEAD
ERASE
1
4
R
L
CD/TV
LINE IN
MIC
DRIVE
MUTE
1
6
DRY BATTERY
SIZE"D"
(IEC DESIGNATION R20)
6PCS,9V
AC IN
PHONES
RIGHT
LEFT
SPEAKER
SPEAKER
SPEAKER
SPEAKER
1
4
1
1
4
4
+
-
-
+
-
-
MEGA
BASS
MEGA BASS DRIVE
4
5
6
7
8
CN
P308
LED DRIVE
LED DRIVE
S301(2/2)
BOARD
TUNER
CN304
CFS-1085S
16
16
4-5. SCHEMATIC DIAGRAM – TUNER SECTION –
• See page 12 for Notes.
• See page 19 for IC Block Diagrams.
• See page 19 for IC Block Diagrams.
CNP1
CV1
S1(8/8)
C1
L5
D1
D2
C22
L7
S1(5/8)
S1(6/8)
S1(7/8)
C24
CT6
L6
C23
CT8
L8
C25
L4
C26
C27
C28
S1(1/8)
S1(3/8)
R16
R14
C34
Q1
R15
C21
CF3
R6
C11
C20
R11
C19
C6
C5
R2
C7
C3
C2
C37
L13
R3
CF4
R5
CF1
R4
C9
Q2
C13
R19
S1(4/8)
D5
C15
C10
C12
R24
C31
C17
R8
R7
C16
R9
C18
CN304
S1(2/8)
C36
C29
L2
L1
R13
C14
RV1
T1
VR1
IC1
ANT1
C4
D6
R20
Q3
R21
R22
R25
D3
R18
220p
1SS133
1SS133
4.7p
3p
3p
1500p
4700p
390p
1k
100k
0.001
KRC3198GR
1k
10
10V
100
2.2
50V
50V
0.47
50V
2.2k
4.7
50V
10
50V
100k
2.2
0.01
100p
0.47
2.2k
680
330
100p
KRC107M-AT
0.01
10k
1SS133
1
50V
47
16V
47
16V
150
0.01
0.01
6.8k
6.8k
0.01
680
1
50V
0.001
20p
10k
4.7
50V
50V
22k
100K
CXA1538S
FM/SW
TELESCOPIC
ANTENNA
0.01
1SS133
10k
KRC107M-AT
10k
10k
3.3k
L-34HD
3.3k
R
L
FM
SW1
SW2
MW
FM
SW1
SW2
MW
GND
MUTE
ST
*
*
*
*
*
-3
CV1-C
T
3
CV1-1
CV1-CT1
CV1-2
CV1-CT2
CV1-4
CV1-CT4
CV1(1/4)
CV1(2/4)
CV1(4/4)
EA
C2
C6
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
+B
FM/AM
DET,FM MPX
FRONT-END,IF,
FM
SW1
SW2
MW
REF
18P
18P
12P
10P
E
33P
C25
33P
FERRITE-ROD
L3
ANTENNA
FM
TRACKING
FM VCO
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FM
AM IF
FINE TUNING
L5
TRACKING
TRACKING
TRACKING
L7
MW
SW2
SW1
MW
L1,CT1
L2,CT2
MW
L8,CT8
SW2
L6,CT6
SW1
FINE TUNING
SELECT
BAND
L3,CT3
L4,CT4
E
TUNING
FM STEREO
BOARD
MAIN
CNP304
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