Sony CFD-S38 / CFD-S55 Service Manual ▷ View online
CFD-S38
– 25 –
– 26 –
6-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 16 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
1-658-023-
S701
(LIMIT)
M702
SLED MOTOR
CNP707
31
M
M701
SPINDLE MOTOR
M
1
6
HEADPHONE BOARD
CD MOTOR BOARD
04
2
L-CH
HRP301
RECORD/PLAYBACK HEAD
R-CH
1
S305
(REC)
2
1
6
M301
CAPSTAN/REEL
MOTOR
S304
(TAPE PLAY)
S303
(MOTOR
ON/OF)
M
1
2
3
4
CNP1
CNP2
(11)
C318
C593
C362
C586
C587
C739
(11)
US,CND,E MODEL
AR,SP
MODEL
MODEL
(Page 23)
(Page 24)
(Page 23)
(Page 34)
CFD-S38
– 27 –
6-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 37 for IC Block Diagrams.
– 28 –
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
• Abbreviation
AR
: Argentine model.
CND : Canadian model.
SP
SP
: Singapore model.
Note on Schematic Diagram:
• 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.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PB
(
no mark : PB
(
) : REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
E
: PB
a
: REC
Ref. No.
Location
D302
C-5
D303
H-5
D351
D-3
D501
D-6
D951
H-5
D952
H-5
D953
I-4
D955
H-5
D957
I-5
IC301
F-8
IC302
F-5
IC303
I-6
IC304
I-8
IC501
C-8
• Semiconductor Location
Ref. No.
Location
IC502
D-6
IC503
B-10
IC701
H-13
IC702
H-11
IC703
E-13
Q301
C-5
Q308
E-5
Q309
E-4
Q311
F-9
Q312
E-10
Q313
F-10
Q321
C-6
Q322
C-5
Q323
C-5
Ref. No.
Location
Q324
C-5
Q325
C-4
Q326
C-5
Q501
D-8
Q502
D-8
Q503
C-11
Q505
B-10
Q506
B-10
Q701
I-11
Q951
H-4
Q952
H-4
Q953
H-4
Q954
H-4
Q955
I-4
Q957
H-5
(Page 36)
(Page 30)
(Page 22)
(Page 31)
US,CND,E
MODEL
MODEL
AR,SP
MODEL
MODEL
CFD-S38
– 29 –
– 30 –
6-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 38 for IC Block Diagrams.
Note:
• 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.
•
U
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
no mark : CD STOP
• 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.
• Signal path.
J
: CD
• Abbreviation
AR
: Argentine model.
CND : Canadian model.
SP
SP
: Singapore model.
(Page 27)
(Page 31)
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
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
!
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.
Approx. 100mVp-p
IC701
$¶
(TEI)
• Waveforms
(MODE:PLAY)
1
2
3
4
5
2.5V
1.2±0.1Vp-p
Approx. 200mVp-p
IC701
1
(FEO)
2.5V
IC703
@¡
(MDP)
2Vp-p
7.6
µ
sec
16.9344MHz
IC703
&¡
(XTAO)
2.2Vp-p
IC701
#£
(RFO)
R527
US,CND,E MODEL : 1.5k
AR,SP MODEL : 4.7k
US,CND,E MODEL : 1.5k
AR,SP MODEL : 4.7k
6-11. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) —
CFD-S38
– 31 –
– 32 –
Note:
• 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.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : TAPE
<
> : CD STOP
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Abbreviation
AR
: Argentine model.
CND : Canadian model.
SP
SP
: Singapore model.
(Page 27)
(Page 22)
(Page 30)
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