Read Sony CFD-E75 Service Manual online
CFD-E75
25
25
6-6.
SCHEMATIC DIAGRAM – CD Section –
•
See page 23 for Waveforms.
•
See page 36 for IC Block Diagrams.
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.
•
f
: internal component.
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
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
•
A
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
(
no mark : CD STOP
(
) : CD PLAY
• 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.
J
: CD PLAY
C727
C726
C725
C724
C723
C722
C720
C721
C746
C745
R726
C728
R725
R724
C744
C747
C730
R729
R730
R701
R702
R703
R704
R705
R706
R712
R710
R709
C731
C703
C736
C743
C742
C707
C704
C717
R714
C716
C711
C735
R718
R716
R717
C755
C754
R743
C741
C709
C750
R731
C702
R707
CNP701
C740
R744
R708
R711
C734
C708
S701
M701
M702
C701
Q701
TP
TP
C705
IC702
R741
CNP702
R715
FB701
C733
C732
C751
JC703
IC701
L706
JC701
JC702
X701
JC704
C729
R728
R727
R723
R722
R719
R720
R721
C706
C738
C739
1000p
1000p
1000p
22p
0.01
22p
22p
22p
100
10V
10V
0.1
680
0.047
680
47k
0.1
100
10V
10V
0.1
220
1k
47k
15k
15k
15k
15k
47k
100
4.7k
22k
0.047
0.1
4700p
(TE)
0.1
0.1
1
(VC)
(FE)
22p
0.01
150
0.01
0.01
1000
6.3V
6.3V
1k
1k
1k
(R-CH)
(L-CH)
0.01
0.01
6.8k
0.1
0.1
100
10V
10V
2.2k
47
10V
10
16P
470
10V
10V
100k
10k
330
4700p
100p
1000p
KTN2907AS-RTK
(GND)
(RF)
4700p
BA6998FP-E2
6.8k
14P
150
100
10V
10V
100
10V
10V
0.1
LC78645NE
33.8688MHz
220
1
10k
2.2k
100
100
100
100
1k
1
50V
0.1
0.1
A9
A10
A9
A10
A1
A1
A2
A2
A8
A8
A4
A4
A3
A3
A5
A5
A6
A6
A7
A7
B1
B3
B5
B1
B3
B5
C1
C2
C3
C4
C1
C2
C3
C4
B2
B4
B2
B4
E
D
A
B
C
F
LD
VR
PD
F+
T+
T-
F-
SW
GND
V
C
C
M
U
T
E
SP
+
SP
IN
S
P
-
S
L-
S
L
+
R
EG
O
V
C
C
V
R
E
F
F-
F
+
T
-
T
+
R
S
T
DRF
*
RES
DO
DI
CL
CE
VREF
VCC
GND
FSEQ
*
WRQ
R
E
G
-B
G
N
D
G
N
D
G
N
D
N
C
O
P
O
U
T
O
P
IN
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REFI
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FD
O
S
P
D
O
S
L
D
O
G
P
D
A
C
C
O
N
T
4
C
O
N
T
5
S
B
C
K
/C
O
N
T
6
S
B
C
K
/FG
D
E
F
E
C
T
V
/
*
P
F
S
E
Q
M
O
N
I1
M
IN
I2
M
O
N
I3
M
O
N
I4
M
O
N
I5
(3
.3
V
)V
S
S
VD
D
D
O
U
T
T
ES
T
LVDD
LCHO
LVSS
RVSS
RCHO
RVDD
XVDD
XOUT
XIN
FSX/16MIN
XVSS
C2F
EFLG
16MOUT
ASLRCK
ASDACK
ASDFIN
LRSY
DATACK
DATA
C
E
C
L
D
I
D
O
*
W
R
Q
*
R
E
S
D
R
F
V
D
D
5
V
S
S
C
O
N
T
3
C
O
N
T
2
C
O
N
T
1
P
D
O
1
P
D
O
2
V
V
S
S
P
C
K
IS
T
V
V
D
D
FR
L
D
S
L
D
D
SLCO
TX
TY
FX
F
Y
S
P
Y
S
P
X
S
L
X
S
L
Y
S
L
IN
(S
L
IN
)
FIN
(FIN
)
T
IN
(T
IN
)
(LIMIT)
SL+
SL-
SP-
SP+
(SLED)
(SPINDLE)
AUTOMATIC
POWER CONTROL
RF AMP,FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO,D/A CONVERTER
COIL DRIVE,
FOCUS/TRACKING
SPINDLE/SLED
MOTOR DRIVE
P-GND
CD MOTOR 6.0V
CD R-OUT
CD L-OUT
D-GND
CD VDD 3.3V
(Page 30)
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