Sony CFD-S20CP Service Manual ▷ View online
CFD-S20CP
21
21
30-33
34-41,43-55
1-8
S0-S27
COM0-COM3
LIQUID CRYSTAL
DISPLAY PANEL
ND401
2
5
21
22
16
4
L-CH
R-CH
HRP301
RECORD/PLAYBACK
HEAD
HE301
ERASE HEAD
DET
ALC 2
RADIO L
18
15
L.LO
R.LO
LINE
TAPE
R-CH
TU_IN_R
TU_IN_L
TAPE
A2
VIN2
VOUT2
SEL2
LOGIC
13
SC
14
SI
VOLUME/SOUND PROCESSOR
IC303
POWER AMP
IC304
D322
R-CH
SP301
SPEAKER
(L-CH)
SP302
SPEAKER
(R-CH)
J321
REF
L.LINE
L.RO
REC
L.RAD
R.RAD
T301
REC BIAS OSC
Q301
ISS1
17
TAPE-ON
20
V-CLOCK
V-DATA
CD-ON
CD-CONT
2
1
3 4
SYSTEM CONTROLLER
IC801 (2/2)
95
21
94
5
MEGA BASS
92
EEPROM
IC802
REMOTE
CONTROL
RECEIVER
IC402
TU-CE
EEPROM
-SCL
EEPROM
-SDA
TU-CLK
TU-DATA
TU-COUNT
B-MUTE
46
WAKE-UP
39
X1
38
X2
35
FM/AM SHIFT
X801
5MHz
42
XT1
41
XT2
Q814,D804
45
1
3
KEY1
53
KEY2
54
KEY3
55
KEY4
56
LCD-CLK
33
LCD-DATA
32
LCD-CS
31
LCD-C/D
30
LCD-RST
29
22 23 24 26 27
Signal path
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
R-ch is omitted due to same as
L-ch.
L-ch.
REC/PB
PRE AMP
IC301
11
5
MEGA
BASS
CONTROLLER
Q122
3
2
B2
C2
20
6
14
R.LINE
8
R.IN
L.IN
9
R.RO
i
A-MUTE
91
MUTE
Q124
LEVEL
DETECT
D323
TCPLAY
49
M
TAPE PLAY
DETECT
Q801
FM/AM
OSC FREQ.
SHIFT SELECT
Q812,813
24
REC-IN
98
-1
-2
S301
(REC/PB)
REC
PB
VDD (SW)
KEY4
KEY5
KEY3
KEY1
KEY2
S802
(TAPE PLAY)
M801
CAPSTAN/REEL
MOTOR
17
16
CD_IN_R
CD_IN_L
S401-406
S407-411
S412-417
S418-420
S425-431
S407-411
S412-417
S418-420
S425-431
6
5
11
12
RESET
IC804
RESET
43
1
LED
DRIVER
Q810
MP3-LED
28
KEY5
SCK
SI
CS
C/D
RESET
57
AUDIO 6V
3.3V
Q302
AC-HI
RMC IN
18
11 12
20
19
AM IN
FM IN
XOUT
XIN
CE
DI
CL
DO
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
ST-IND
OSC-OUT
7
BAND
8
ST-IND
LP-OUT
17 LP-IN
16 PD
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM
RF-IN
RF-IN
FM
RF-IN
RF-IN
FM
RF-OUT
RF-OUT
X1
75kHz
FM/AM PLL
IC2
14
17
13
18
16
15
12
11
19
20
22
4
6
7
10
2
21
24
T1
CF4
L2
L1
CT1
RADIO 6V
RADIO 6V
D1
D2
CT3
D3
L3
AM
FERRITE-ROD
ANTENNA
CT3,L3
AM
TRACKING
CT1,L1
FM
TRACKING
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
IF CUT
L-OUT
R-OUT
TU_IN_R
RADIO 6V
QUAD
FM/AM FRONT END, IF AMP,
FM MPX
IC1
AM
FREQUENCY
COVERAGE
L4
RADIO 6V
L4
CF2
RADIO 6V
RADIO 6V
RADIO 6V
FM OSC
AM OSC
MIX-OUT
AM
IF-IN
IF-IN
FM
IF-IN
IF-IN
IF-OUT
DET-OUT
MPX-IN
T2
T2
FM IF
L2
FM
FREQUENCY
COVERAGE
VDD (SW)
1 2 3 4
T1
AM IF
U-COM
(VDD)
VDD (SW)
TREBLE/
BASS
CONTROL
6
8
10
1
ISS2
18
Q303
D324
KEY NETWORK
D401
MP3
D402
OPR/BATT
D801
2
NC
LCD
DRIVER
IC401
6-4. BLOCK DIAGRAM — MAIN SECTION —
(Page 20)
(Page 20)
CFD-S20CP
22
22
6-5. PRINTED WIRING BOARD — CD SECTION — • Refer to page 19 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
1-684-176-
11
(11)
Ver 1.3
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
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
• 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
: AM
E
: PB
a
: REC
J
: CD
• Abbreviation
CND : Canadian model.
KR
KR
: Korean model.
TW
: Taiwan model.
Common Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
KR
KR
: Korean model.
TW
: Taiwan model.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
CFD-S20CP
23
23
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
M701
SPINDLE
MOTOR
M702
SLED
MOTOR
M
M
OPTICAL
PICK-UP
BLOCK
(KSS-213R)
IC702
Q701
R701
R702
R703
R704
R705
R706
R707
R708
R709
R711
R716
R717
R718
R719
R720
R721
R722
R729
R730
R753
R745
R1068
R1073
R1074
R1075
R1076
R1077
R1078
C701
C703
C705
C706
C740
C710
C711
C712
C713
C714
C716
C717
C718
C719
C720
C741
C745
C750
C751
C752
C753
C754
C734
C731
R744
R
743
C747
C1056
C1057
C1058
C1059
C721
R710
R731
R755
R756
R757
R758
R759
R760
R712
R713
R714
R715
R724
R725
R726
R727
R728
R732
R733
R734
R735
R736
R737
R740
R1001
R1002
R1003
R1004
R1005
R1017
R1018
R1019
R1020
R1079
R1080
C708
C746
C742
C743
C744
C760
C761
C762
C763
C764
C766
C767
C737
C732
C733
C722
C756
C1010
C1011
C1012
C1013
C1030
C1031
C1066
C1067
C1068
C1069
C1070
C1074
C1044
C1037
C1055
C1043
FB701
R1081
R1082
R761
R762
R763
R764
R723
IC1001
IC1002
C1001
C1004
IC701
D702
D701
R765
FB1001
FB1002
FB703
FB704
FB702
FB705
FB706
FB707
CNP701
C748
C704
C702
C723
C707
C715
C709
C1042
C1014
C1054
1-684-176-
X701
C729
S701
C1029
CNP702
(LIMIT)
11
(11)
TP(RF)
TP
(VREF)
TP
(FE)
TP
(TE)
TX
TY
FX
FY
SPX
SPY
SLX
SLY
TP
(R-CH)
TP
(L-CH)
(Page 27)
D701
G-7
D702
F-7
IC701
D-3
IC702
B-7
IC1001
F-5
IC1002
H-6
Q701
B-3
• Semiconductor
Location
Ref. No.
Location
CFD-S20CP
24
24
IC B/D
IC B/D
R706
R
716
R
717
R
718
R
719
R
720
R
721
R
722
R72
3
R727
R728
R729
R730
R731
R
732
R73
3
R
734
R735
R736
R737
R736
R737
R1002
R1003
R1004
R1003
R1004
R
1073
R1
074
R10
75
R
1076
R1
077
R1078
R10
79
R
1080
C702
R724
C709
R702
R703
R703
R704
R705
R705
R712
R
725
R
726
R745
R760
R761
R762
R
763
R
764
Q701
R715
R714
R744
R1018
R1082
R1068
R701
R1017 R1081
R1019
R1020
D702
D701
R1001
R713
R755
R756
R756
R757
R758
R758
C708
C711
C712
C714
C701
C718
C740
C721
C747
C748
C746
C743
C744
C732
C733
FB703
C754
C753
C752
C751
C750
C745
C741
C760
C761
C762
C763
C762
C763
C764
C766
C767
FB704
C1011
FB1002
FB1001
C1068
C1067
C10
66
C1037
C1055
C1030
C1031
C1043
C1004
C1059
C1058
C1057
C1001
C1056
FB702
FB705
FB706
FB707
C704
R707
FB701
C729
C737
R765
C742
R709
R710
R708
R759R711
C720
C707
C706
C703
C722
R740
R753
R743
IC702
R1005
C1010
C1012 C1014
C1013
C1074
C1044
C1042
C1054
C1069
C1070
C723
S701
C705
C713
TP
C715
C716
C717
C719
TP
TP
TP
IC701
X701
TP
TP
M701
M702
IC1002
C1029
IC1001
CNP702
C756
C731
C734
CNP701
C710
6-6. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 22 for Common Note on Schematic Diagrams and page 38 for IC Block Diagrams.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
no mark : CD PLAY
(Page 28)
1
IC701
4
(RF)
500mV/div 0.5µsec/div
2
IC701
qd
(FE)
100mV/div 20µsec/div
3
IC701
qg
(TE)
100mV/div 20µsec/div
4
IC701
rk
(XOUT)
1V/div 0.05µsec/div
0.85±0.2Vp-p
Approx. 100mVp-p
Approx. 100mVp-p
1.8V
1.8V
3.2Vp-p
• Waveforms
(Mode: PLAY)
16.93MHz
5
IC701
t;
(FSX/16MIN (I))
2V/div 50nsec/div
6Vp-p
60nsec
6
IC1001
7
(CKIN (I))
2V/div 50nsec/div
5.2Vp-p
60nsec
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