Read Sony CFD-E75 Service Manual online
CFD-E75
31
31
6-13. SCHEMATIC DIAGRAM – MAIN (2/2)/LCD Boards –
•
See page 23 for Waveforms.
Note on Schematic Diagram:
• 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.
•
C
: panel designation.
•
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 (detuned) conditions.
no mark : TUNER (FM/AM)
[
no mark : TUNER (FM/AM)
[
] : CD PLAY
〈〈
〉〉
: TAPE 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.
• Abbreviation
AR
: Argentina model
AUS
: Australian model
KR
: Korean model
SP
: Singapore model
TW
: Taiwan model
C802
C803
R431
C873
R876
R877
R878
R880
R870
R869
R868
R867
R866
R865
C866
C868
C869
C865
LCD801
R838
R848
R849
R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
R847
R846
R845
R844
R843
R842
R841
R840
R861
R839
R895
R890
R888
C801
C813
R820
R819
R818
R816
R815
R813
R812
R811
R810
R809
R808
R807
R806
R805
R803
R802
R801
C887
C881
C882
C886
C889
C888
C884
C883
Q803
Q804
X801
R835
R834
R836
R837
C834
C835
C836
R883
C830
C892
R891
R894
R893
R892
C823
C824
C825
C826
CNP802
R882
R881
C885
C890
R884
IC803
C837
R830
R832
R829
R826
R825
C818
C819
C820
R899
R871
R879
R824
R823
CNP811
CNP801
IC804
IC801
X802
R827
CN801
Q431
C431
R432
C812
L801
100
100
µH
R896
C874
R873
L802
2.2
2.2
µH
C805
C872
C810
C875
C880
R821
R886
0.01
47
10V
4.7k
22p
1k
1k
1k
1k
1k
1k
1k
1k
1k
22k
100p
100p
100p
0.1
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
330k
330k
100p
100p
1k
1k
22k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
10k
1k
1k
10p
22p
10p
22p
5p
22p
5p
22p
2SC2413TKT146-N
2SC2413TKT146-N
4.19MHz
100k
33k
100k
100k
0.01
0.01
0.01
1k
0.1
0.01
10k
100k
100k
10k
100p
100p
100p
100p
6P
1k
10k
0.001
0.01
47k
PST9128-T
0.01
1k
1k
1k
1k
1k
0.1
100p
100p
330k
1k
100k
1k
1k
27P
27P
SPS-442-VP
32.768 kHz
10k
2P
DTC114YKA-T146
0.001
470
100p
47k
10p
330
0.1
10p
100p
5p
0.01
4.7k
470k
RADIO
R-CE
TAPE
R-DATA
R-CLK
R-MUTE
CD
-W
RQ
C
D-CE
CD
-CL
C
D-DO
CD
-D
I
CD
-REF
C
D
-FS
EQ
M
EG
A
B
AS
S
A-M
U
TE
P-C
O
N
CD
CD
C
D-RES
CD
-R
ES
CD
-D
I
C
D-C
E
C
D
-CL
CD
-W
R
Q
C
D-D
O
C
D
-D
R
F
C
D
-F
SEQ
RE
G-CH
K
P
-CO
N
A-M
U
TE
M
EG
ABASS
TC-R
EC
TAPE
IS
S-1
ISS
-2
R
A
D
IO
R
-C
E
R
-D
ATA
R
-C
LK
R
-CO
U
N
T
R
-M
U
TE
ISS-1
ISS-2
TC-REC
R-COUNT
R
M
C
V
-
D
A
T
A
V
-C
L
O
C
K
RST
EXTAL
XTAL
VSS
VL
VLC3
VLC2
VLC1
S
E
G
1
0
S
E
G
1
1
S
E
G
1
2
S
E
G
1
3
S
E
G
1
4
S
E
G
1
5
S
E
G
1
6
S
E
G
1
7
S
E
G
1
8
S
E
G
1
9
NC
TEX
TX
VDD
A
-
M
U
T
E
B
U
Z
Z
E
R
R
A
D
IO
A
-M
U
T
E
B
U
Z
Z
E
R
U
-C
O
N
(V
D
D
)
D
-G
N
D
O
P
R
/B
A
T
T
V
-D
A
T
A
P
-C
O
N
V
-C
L
O
C
K
GND
JOG-A
JOG-B
SIMUKE CHECK
N
.C
C
D
-W
R
Q
C
D
-D
R
F
C
D
-D
I
C
D
-C
E
C
D
-F
S
E
Q
C
D
-D
O
C
D
-C
L
IS
S
-1
IS
S
-2
T
A
P
E
P
-C
O
N
N
.C
N
.C
ISS-1
ISS-2
TAPE
C
D
-W
R
Q
INIT
C
D
-R
E
S
M
E
G
A
B
A
S
S
BEEP-H/L
RADIO
N
.C
N
.C
N
.C
TC-
PLAY
R
M
C
+
5
V
T
C
-P
L
A
Y
C
D
-R
E
S
TC-REC
R
-M
U
T
E
R
-C
O
U
N
T
R
-C
L
K
R
-D
A
T
A
R
-C
E
C
D
M
E
G
A
B
A
S
S
JOG-A
JOG-B
KEY2
KEY1
N
.C
R
M
C
+
5
V
S
IG
N
A
L
G
N
D
OPR/BATT
RESET SIGNAL
GENERATOR
R
E
S
E
T
V
C
C
G
N
D
LIQUID CRYSTAL DISPLAY
REMOTE CONTROL
RECEIVER
SYSTEM CONTROLLER
S
E
G
9
C
O
M
3
COM2
COM1
COM0
S
E
G
8
S
E
G
7
S
E
G
6
S
E
G
5
S
E
G
4
S
E
G
3
S
E
G
2
S
E
G
1
S
E
G
0
SHIFT CLK
K
E
Y
-2
K
E
Y
-1
R
E
G
C
H
K
C
D
D
O
O
R
C
D
C
D
F
S
E
Q
C
D
D
R
F
C
D
C
E
C
D
C
L
C
D
D
O
C
D
D
I
TU-COUNT
TU-DATA
TU-CLK
TU-MUTE
TU-CE
CXP83624-035Q
(2/2)
Q803,804
SHIFT CLOCK
R
E
G
-C
L
K
BUZZER H/L
CONTROL
T
C
-R
E
C
S901
PUSH OPEN/CLOSE
R828 *
(SP, TW, KR, AR, AUS)
*
R828
33k
3.3k
1.5k
1.5k
(SP, KR, AUS)
(TW)
(AR)
(TW)
(AR)
(Page 30)
(Page 33)
Ver. 1.7
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