Sony CFS-1085SMK2 Service Manual ▷ View online
CFS-1085SMK2
13
13
4-2. BLOCK DIAGRAMS
• Signal path.
F
: FM
f
: AM
E
: PB
a
: REC
J
: CD/TV LINE IN
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
DC IN DET
Q314,315
OVER LOARD
DET
Q313
MEGA BASS
CONTROL
Q310
B+
DC IN 12V
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
Q106
MUTE
Q206
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
9V REG
Q316
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
D102
D202
D201
D908
D907
D905
D906
CV1(1-4)
TUNING
3
1
5
J902
DC IN 12V
VOLTAGE DET
IC303
D3
FM STEREO
D302
OPR/BATT
26
CFS-1085SMK2
14
14
4-3. PRINTED WIRING BOARD – MAIN SECTION –
• See page 12 for Circuit Boards Location.
A
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
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)
1-860-793-
ON
OFF
RED
MEGA BASS SW BOARD
11
(11)
1-860-795-
LED BOARD
T901
POWER TRANSFORMER
VOLTAGE SELECTOR
220–240V
110–120V
CNJ901
AC IN
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS, 9V
TUNER
BOARD
CN304
(Page 16)
B
C
E
B
C
E
11
(11)
11
(11)
1-860-794-
11
(11)
1-860-791-
1-860-789-
11
(11)
1-860-792-
11
(11)
1-860-796-
11
(11)
1-860-798-
J301
PHONES
CNP308
R221
R222
R224
R122
J2
R123
R124
C116
C118
C142
C114
C114
R121
C117
C217
C214
C242
C327
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
R368
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
RIGHT
SPEAKER
LEFT
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
R367
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
D301
D101
D201
D202
D102
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
JW
319
C307
R334
R137
R353
R138
R139
C120
C122
C343
C112
R142
R238
C220
C218
C344
R223
C222
R239
R218
JW304
JW
305
JW309
JW310
JW311
JW
312
JW313
JW314
JW315
JW324
JW321
JW322
JW325
JW318
JW320
JW327
JW328
JW
330
JW331
JW
333
JW
334
JW
336
JW339
JW340
JW
341
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
R214
R217
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
S303
SOUND SELECT
S303
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
S401
MEGA
BASS
R351
CNP313
CNP311
JW335
R344
R333
R342
R343
D311
FLAT
D312
GROOVE
D313
LIVE
D314
POPS
D315
CINEMA
S901
F902
R901
D908
1
2
3
C906
CNP902
CNP901
D904
D903
D901
D902
C902
C901
C903
C904
F901
+
–
+
–
Q311
Q312
R317
R331
R362
R119
R335
R109
R108
R209
R208
Q315
R314
R302
Q314
Q313
Q206
Q106
D316
R219
C319
R332
D907
Q316
F903
D906
D905
CNP904
CNP903
CNP302
C317
J902
R328
DC IN BOARD
DC IN 12V
D
E
J3
E
D
J1
2
3
4
5
6
7
8
9
10
11
12
A
1
B
C
D
E
F
G
Ref. No. Location
D101
B-6
D102
A-6
D201
B-6
D202
A-6
D301
B-6
D302
B-8
D303
D-4
D304
F-8
D305
F-8
D308
D-7
D310
C-7
D311
E-12
D312
E-11
D313
E-11
D314
E-11
D315
E-10
D316
G-3
D317
D-4
D320
E-5
D321
F-8
D322
F-7
D326
F-8
D901
B-2
D902
B-2
D903
B-2
D904
B-2
D905
F-1
D906
F-1
D907
F-1
D908
A-2
IC102
B-7
IC202
B-5
IC301
D-6
IC302
E-7
IC303
D-4
Q101
C-7
Q102
G-6
Q103
C-8
Q106
F-3
Q201
C-6
Q202
G-6
Q203
C-7
Q204
C-6
Q205
C-6
Q206
F-3
Q301
F-6
Q302
D-4
Q303
C-8
Q304
C-6
Q305
D-4
Q306
E-4
Q307
D-4
Q308
D-8
Q309
F-9
Q310
B-6
Q311
E-10
Q312
E-10
Q313
G-3
Q314
G-3
Q315
G-3
Q316
F-3
Q340
C-7
• Semiconductor
Location
CFS-1085SMK2
15
15
4-4. SCHEMATIC DIAGRAM – MAIN SECTION –
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
S302(1/2)
D308
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
C226
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
C225
C223
D326
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
R361
C321
CNP303
M601
R319
R326
Q306
R324
R362
C331
C332
D201
R237
R137
C233
D101
R236
J301
C128
C129
C127
C130
R128
C125
C123
R130
C339
C126
C219
R315
R120
R301
R329
R327
R122
C118
R124
C117
D322
R346
R345
D321
C116
C119
R213
C236
R212
Q203
R217
Q305
Q204
ECM301
S301(1/2)
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
R353
R352
C316
C139
R125
R126
C234
R225
R226
C232
C132
C142
C343
C242
C344
Q312
Q311
R331
R333
C243
C143
R363
R366
Q101
D301
R341
Q201
C330
R110
R210
R243
R143
C342
C134
J306
IC102
IC202
CNP305
C135
C235
D202
D102
C133
C224
R211
R111
R351
C124
R368
Q308
D302
C244
C144
J-3
J-1
J-2
R132
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
10V
68
68k
0.047
2.2k
10
50V
TA2068N
0.1
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
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
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
50V
1SS133T-77
1SS133T-77
2SC2001
0.01
MM1468XD
RD6.8EB2
220
10k
2.2k
22k
100
10V
10V
4P
2.2k
10k
KRC107M-AT
10k
680
100
10V
0.01
1SS133T-77
1k
1k
10
50V
1SS133T-77
100
0.22
0.22
100
10V
10V
100
10V
10V
1k
100p
47V
16V
220
4700
16V
100p
1
50V
47
10k
47
1.5k
1.5k
2.2k
0.0047
470
0.1
1SS133T-77
10k
10k
1SS133T-77
2200p
1
50V
10k
0.1
1k
KTC3198GR-AT
100k
KTA1266-GR
KTC3198GR-AT
0.22
0.1
0.1
1k
10
50V
AN7338K
1k
100
10V
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
10k
6.8k
4.7
50V
1
50V
2.2
2.2
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
330
3.3k
DTC343
1SS133T-77
1M
DTC343
2.2
50V
50V
680
680
6.8k
6.8k
1
50V
100
10V
BA5417
BA5417
4P WIRE
0.22
0.22
1SS133T
1SS133T
10
50V
100
16V
16V
1k
1k
2.2k
100
10V
10V
1.5k
2SC2001
L-34HD
0.1
0.1
2P/7P WIRE
2P/7P WIRE
3P/7P WIRE
10k
RIN
GND
GND
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
SWITCH
MOTOR
+B ON/OFF
OPR/BATT
MUTE
MUTE
GEQ CONTROL
GEQ CONTROL
GEQ CONTROL
BUFFER
BUFFER
GEQ CONTROL
MEGA
BASS
MEGA
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
PHONES
RIGHT
LEFT
SPEAKER
SPEAKER
SPEAKER
SPEAKER
1
4
1
4
+
-
+
-
MEGA
BASS
MEGA BASS DRIVE
4
5
6
7
8
CNP308
LED DRIVE
LED DRIVE
S301(2/2)
1
1
1
2
3
2
CFS-1085SMK2
16
16
4-5. SCHEMATIC DIAGRAM – POWER SECTION –
S901
D902
D903
D901
D904
CNP902
R901
F902
CNP901
R302
D906
D905
R332
D316
CNP904
D907
R314
C317
R108
R119
R219
R328
Q316
C319
CNP903
R109
R209
R208
CNP302
T901
D908
Q106
Q206
Q314
Q315
Q313
R335
J902
CNP903
C902
C904
C901
C90
CNJ901
F901
C906
F903
2A2M
2A2M
2A2M
2A2M
4P
1.5k
T 2.5 AL
4P
220k
IN5401
IN5401
220
UDZS 10B TE-17
4P WIRE
1SS355 TE-17
100k
4.7
50V
220
1.5k
1.5k
2.2
INCOMBUSTIBLE
KTC3203Y-AT
0.022
3P
100
100
220
7P
1SS133T-77
2SC4081-T106Q
MUTE
2SC4081-T106Q
MUTE
DTC124TUA
DC IN DET
DTA144EUA
DC IN DET
DTC143TUA
OVER LOAD
OVER LOAD
DET
220
3P
0.022
0.022
0.022
0.022
AC IN
T315mAL
1000
25V
T4A 250V
VOLTAGE SELECTOR
POWER
TRANSFORMER
DRY BATTERY
SIZE"D"
(IEC DESIGNATION R20)
6PCS,9V
DC IN 12V
1
6
1
4
4-6. PRINTED WIRING BOARD – TUNER SECTION –
• See page 12 for Circuit Boards Location.
C14
C15
C12
C10
C18
C20
C19
C5
C11
C21
R7
R20
R22
R21
R8
R24
R11
R9
R16
R13
R2
R18
R6
R4
R3
R5
R19
R25
R15
R14
C38
C34
C7
C4
C36
C6
C2
D5
C16
C17
C31
CF1
CF4
C9
C13
C28
C25
C27
C22
C1
C23
C26
C29
C24
B
C
E
Q1
L6
L8
L4
L7
L5
CT8
CT6
CV1
CV2
CV3
CV4
CT3
CT4
CT1
CT2
VR1
FINE
TUNING
D3
FM STEREO
RV1
D2
D1
1
2
2
CNP1
ANT1
FM/SW
TELESCOPIC
ANTENNA
L3
MW
FERRITE-ROD
ANTENNA
L2
L1
L13
B
C
E
Q2
B
C
E
Q3
IC1
TUNER BOARD
A
MAIN
BOARD
CN304
(Page 14)
CN304
1
6
CF3
T1
CV1-4
TUNING
-2
-1
-4
-3
-5
-8
-6
-7
S1
BAND
FM SW1 SW2 MW
t
t
t
13
(13)
1-651-230-
D6
1
5
10
15
16
20
25
30
C37
2
3
4
5
A
1
B
C
D
E
F
Ref. No.
Location
• Semiconductor
Location
D1
E-5
D2
E-5
D3
D-1
D5
D-1
D6
A-4
IC1
B-3
Q1
E-2
Q2
A-4
Q3
B-4
Click on the first or last page to see other CFS-1085SMK2 service manuals if exist.