Sony CFS-828SMK2 Service Manual ▷ View online
CFS-828SMK2
13
13
6-2. BLOCK DIAGRAM
7
30
19
L5
SW1
TRACKING
CT1,L1
FM
TRACKING
CT2,L2
FM
FREQUENCY
COVERAFE
L5 SW1 ANT
L7 SW2 ANT
L7
SW2
TRACKING
CT3,L3
MW
TRACKING
CT6,L6
SW1
FREQUENCY
COVERAGE
CT8,L8
SW2
FREQUENCY
COVERAGE
CT4,L4
MW
FREQUENCY
COVERAGE
DECK A
(L-CH)
(R-CH)
HP301
PLAYBACK
HEAD
DECK B
(L-CH)
(R-CH)
HRP301
RECORD/
PLAYBACK
HEAD
J103
PLAY(DECK B)
J102
PLAY(DECK A)
J105
POWER(DECK B)
J104
POWER(DECK A)
M301
CAPSTAN/
REEL
MOTOR
ANT1
FM/SW
TELESCOPIC
ANTENNA
L8
SW2
OSC
L6
SW1
OSC
L4
MW
OSC
22
19
24
21
20
18
16
13
FM
FRONT END
FM
FRONT END
AFC/AGC
AMP
FM IF/
DISCRI
MIC
AMP
BIAS
OSC
LOGIC
CONTROL
MPX
DECODE
AMP
14
REGULATOR
T1
AM IF
DETUNE
MUTING
MUTING
CONTROL
FINE TUNING
CONTROL
Q1
TUNER
B+ SWITCH
Q302
B+ SWITCH
Q327
POWER SWITCH/
CONTROL
Q301,319,320
AM IF/
DETECT
10
23
15
7
6
5
28
27
RV1
FM VCO
26
S302
FUNCTION
S302-2
TU+B
VDD
TAPE
RADIO OFF
r
DUBBING
r
HIGH SPEED
DUBBING
r
RADIO
FM
r
SW1
r
SW2
r
MW
OFF
r
ON
S1
BAND
FM
r
SW1
r
SW2
r
MW
S901
VOLTAGE
SELECTOR
220 - 240V
220 - 240V
R
110 - 120V
CV1-4
TUNING
L9
FM
IF
RV2
FINE
TUNING
S1-8
BAND
D319
OPR/BATT
10
5
8
12
3
32
1
9
12
29
MIC
AMP
14
22
27
28
MAXI BASS
EQ/SWITCH
EQ/SWITCH
Q309,310
17
4
7
TREBLE,
BASS
ANALOG SWITCH
LINE
AMP
AMP
Q311
LINE
AMP
AMP
Q312
MUTE
Q313
LED DRIVER
Q322,323
10
9
8
11
S306
SOUND
SELECT
J301
PHONES
SP301
WOOFER
(L-CH)
SP303
TWEETER
(L-CH)
J304
SPEAKER
D318
MAXI BASS
S301
MAXI BASS
VDD
OR
OR
HE301
ERASE
HEAD
R-CH
R-CH
VREF
S304
CT4
CT8
CT6
S1-7
S1-3
CT2
CV2
CT1
CV1
CF1
FM IF
T1
AM IFT
CF2
AM IF
CT3
CV3
S1-4
S1-1
S1-5
S1-6
CV4
L3 MW FERRITE-ROD
ANTENNA
L2
FM OSC
L1
FM RF
IC1
FM/AM
FRONT END,IF DET,
FM STEREO DEMODULATOR
MIC301
MIC
S303
ISS
2 1
VDD
VDD
MIC IN
A-DECK-L
B-DECK-L
CD-IN-L
VREF
VREF
BIAS
TR-B
TR-B
BIAS
TR-C
TR-C
NC
10
MIC/HS
RA-IN-L
FUNCTION
LINE-
OUT-L
A/B
NS/HS
LCH
IN
IN
LCH
OUT
RCH
OUT
Q315
EQ
SWITCH
D326
Q316
Q318
ST-BY
D321
D306
VBATT
VBATT
R-CH
Q317
MAXI
MAXI
BASS
CONTROL
D322
D153
D906 D905
F904
R-CH
R-CH
D253
IC304
POWER AMP
R-CH
RV301
VOLUME
M
KEY1
KEY2
KEY3
KEY4
KEY5
KEY2
KEY3
KEY4
KEY5
R-CH
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS,9V
D901-904
F901
F903
F902
T901
POWER
TRANSFORMER
J901
~ AC IN
Q2
D3
D325
D303
D304
Q303
INV.
Q321 INITIAL
MUTE
TU+B
VCC
AFC
BAND SEL
IC301
REC/PB PRE AMP
R-CH
IC302
TREBLE/BASS
CONTROL
FLAT
GROOVE
LIVE
POP
CINEMA
KEY1
KEY2
KEY1
KEY5
KEY3
KEY1
KEY2
KEY3
KEY4
KEY5
KEY3
KEY4
KEY2
KEY3
KEY4
KEY5
M
D313
D314
D315
D316
D317
NC
Q305
Q306
Q308
ISS SWITCH
Q307
TAPE CONTROL
RV302
RV302
TAPE SPEED
S1-2
Q304
TAPE
TAPE
CONTROL
VBATT
VDD
-2
-3
-3
-4
T301
S304
(REC/PB)
PB REC
FLAT
RF IN
FM RF
IN
IN
AM IF
IN
IN
FE
OUT
FM RF
FM OSC
AM RF
REG OUT
AM OSC
LCH OUT
RCH OUT
AFC/
AGC
R-CH
VDD
S302-1
~ AC IN
MUTE
Q101
SWITCH
Q325,326
MUTE
CONTROL
Q324
Signal path
R-ch is omitted due to same as L-ch.
: MW
: FM
: SW
: PB(DECK B)
: PB(DECK A)
: REC(DECK B)
CFS-828SMK2
14
14
6-3. PRINTED WIRING BOARDS — TUNER SECTION — • Refer to page 12 for Circuit Boards Location.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
TUNER SECTION
no mark : FM
(
(
) : MW
<
> : SW
MAIN SECTION
no mark : FM
(
(
) : PB
<
> : REC
[
] : DUBBING
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: MW
h
: SW
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Common Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
Q2
L4
L5
L6
L7
L8
T1
CF1
S1
Q1
IC1
L2
L3
D3
D1
D2
CNP1
ANT1
CF2
C33
C34
C35
C38
C32
C43
C22
R11
C31
C37
R7
R6
C36
C46
C45
C11
C41
C24
C23
C7
R9
C28
C47
C26
C25
L10
L1
C2
C10
R2
R3
R4
R8
C40
C39
C30
C5
C6
C3
CT3
CV3
CV1
CT1
CV4
CT4
CV2
CT2
C4
C12
C9
C8
R10
C20
C21
C16
C15
C17
C18
C13
C19
C14
R1
JW1
JW2
JW4
JW5
JW6
JW7
JW8
JW10
RV1
C49
L9
L2
JW9
JW11
JW12
CT8
CT6
C50
JW3
W2
W1
W3
RV2
R13
R12
C1
RED
RED
RED
WHT
BLU
WHT
BLU
YEL
BLK
WHT
BLU
D1
C-2
D2
C-2
D3
E-3
IC1
G-8
Q1
E-5
Q2
H-9
• Semiconductor
Location
Ref. No.
Location
(Page 16)
: Uses unleaded solder.
CFS-828SMK2
15
15
IC B/D
IC1
C38
C32
R4
R8
C40
C39
S1-8
R10
C45
C41
C1
C49
CT3
CV3
C43
S1-6
S1-5
S1-7
C17
C18
C19
C16
C21
C20
CT4
C15
C13
CV4
C22
S1-3
CT1
CV1
CV2
CT2
RV1
R9
C28
C25
R2
C47
C10
C2
L10
C8
C9
C7
C24
C23
RV2
R12
R13
C30
L7
L5
CT8
CT6
L6
L8
L4
R11
C26
C50
R3
C11
T1
C46
CNP1
ANT1
L3
L2
CF1
CF2
D2
D1
L1
L9
Q1
W2
W3
Q2
D3
W1
C12
C5
C6
C3
C4
C14
S1-2
S1-1
S1-4
R7
R6
C36
R1
C35
C34
C33
C31
C37
6-4. SCHEMATIC DIAGRAM — TUNER SECTION — • Refer to page 14 for Common Note on Schematic Diagrams and page 21 for IC Block Diagrams.
(Page 17)
CFS-828SMK2
16
16
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
C141
C142
C143
C144
C145
C146
C147
C241
C243
C244
C247
R142
R144
R145
R146
R147
R244
R247
R102
R103
R104
R106
R108
R201
R202
R203
R208
C101
C102
C103
C104
C105
C106
C109
C114
C201
C202
C204
C205
C208
C209
C301
C302
C305
C307
C310
R301
R302
R303
R304
R305
R307
R209
R120
R220
R225
C333
C334
R224
C228
R226
C229
R227
C372
R371
R372
R373
C374
R229
R374
R375
R376
R344
C340
L301
C125
C126
R355
R342
R353
R340
R357
R352
R337
R359
R356
C149
C249
J304
SP304
SP302
SP301
SP303
J102
J103
J104
J105
M301
R317
C316
C315
C318
R311
C319
T301
C330
W305
R321
C223
C123
C317
C320
R141
R152
D321
C321
JW201
JW104
JW105
JW106
JW107
JW204
JW206
JW302
JW303
JW305
JW
306
JW
307
JW308
JW309
JW310
JW311
JW
312
JW313
JW
314
JW315
JW316
JW317
JW318
JW323
JW
324
JW325
JW327
JW
328
R251
R151
JW301
Q322
Q319
Q320
Q321
R385
R378
R380
R381
R382
R383
D323
D324
R384
C378
D325
R377
JW322
C329
C326
C327
C322
JW321
JW
329
JW207
JW208
CNP305
CNP301
JW331
R322
JW332
R368
JW209
C211
C111
C325
JW320
Q313
CNP307
CNP317
D326
C341
Q317
D320
W
303
RV301
C127
C335
JW
101
Q311
R354
C347
R341
C331
C332
Q315
D308
D307
D311
D309
D310
C345
C344
C343
C120
Q310
Q309
C220
JW304
CNP306
Q308
C245
C246
C376
W302
IC303
Q316
Q318
IC301
C373
C371
C337
Q312
IC304
C314
C303
C113
C213
Q307
Q305
RV302
Q306
C377
Q302
D305
JW326
C150
R252
D322
CNP311
C250
C370
S303
CNP316
CNP315
Q304
C375
Q303
S302
R388
R343
R367
R134
Q314
R130
R230
R336
R234
C130
R133
C131
R349
C348
R358
C231
C227
R379
R387
R122
R121
R129
R241
C242
R243
C338
R338
R339
C346
IC302
R132
C225
R232
C222
R223
C224
C221
R350
R140
R351
R242
R245
R246
R248
R148
R143
D301
D302
R370
D303
D327
C379
CNP302
CNP418
R361
R360
C328
R319
R362
R363
R320
R318
R347
C323
R309
R310
CNP303
R204
R206
R101
R105
R205
R386
C339
C324
C203
C206
R221
R222
Q301
C107
C108
C207
C306
C336
C304
C212
C112
C214
C311
R306
C312
C313
R109
C308
C309
Q323
JW205
D153
D253
CNP319
CNP314
CNP318
JW336
JW330
JW335
J301
R249
W306
C148
C248
R149
R150
R250
CNP417
W307
D319
W421
R345
R346
W419
S301
D318
C349
R348
S304
CNJ306
CNJ305
MIC301
HP301
HE301
HRP301
D313
D314
D315
D316
D317
S306
R315
R316
D304
D306
R312
R313
R314
R123
R124
C121
C122
C124
C128
R127
C129
R126
JW
102
JW
202
JW
203
JW
103
JW
319
R330
R331
R332
R333
R125
C132
C232
R110
R210
6-5. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 12 for Circuit Boards Location and page 14 for Common Note on Printed Wiring Boards.
(Page 14)
(Page 19)
: Uses unleaded solder.
D153
C-11
D253
E-11
D301
D-9
D302
D-9
D303
D-8
D304
H-4
D305
C-7
D306
H-4
D307
H-7
D308
H-7
D309
H-7
D310
H-7
D311
H-7
D313
J-6
D314
J-5
D315
J-4
D316
J-3
D317
J-3
D318
I-1
D319
G-3
D320
H-6
D321
D-12
D322
C-12
D323
C-10
D324
C-9
D325
I-4
D326
I-6
D327
D-8
IC301
D-6
IC302
G-8
IC303
F-10
IC304
D-10
Q301
E-9
Q302
C-7
Q303
B-7
Q304
B-10
Q305
C-8
Q306
C-9
Q307
C-8
Q308
F-6
Q309
G-6
Q310
G-6
Q311
H-9
Q312
E-9
Q313
I-10
Q314
I-10
Q315
H-10
Q316
F-9
Q317
I-5
Q318
F-9
Q319
D-9
Q320
C-9
Q321
I-4
Q322
I-6
Q323
I-6
• Semiconductor
Location
Ref. No.
Location
(Page 19)
(Page 19)
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