Read Sony CFD-E75 Service Manual online
CFD-E75
28
28
6-9.
PRINTED WIRING BOARD – TAPE DECK Section –
•
See page 23 for Circuit Boards Location.
6-10. SCHEMATIC DIAGRAM – TAPE DECK Section –
•
•
See page 23 for Waveform.
•
See page 37 for IC Block Diagram.
• Semiconductor
Location
Ref. No.
Location
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
IC301
C-3
Q301
D-4
IC301
CN303
T301
BIAS
BIAS
OSC
C102
C302
C202
C301
C304
C303
C206
C106
C103
R210
R206
R201
R301
R104 R103
R202
R203
R204
C104
C203
C204
C201
C205
C105
R305
R101
C101
JC304
R102
C107
C207
R307
C307
R306
C305
R308
C306
R303
JC301
R211
R205
JC303
R309
R304 JC302
R111
R105
R106
R302
R110
Q301
B
MAIN BOARD
CNP322
-1
-2
S301
(REC/PB)
PB
r
REC
TC BOARD
1-679-592-
11
(11)
4
1
3
2
L-CH
R-CH
HE301
(ERASE HEAD)
HRP301
REC/PB
HEAD
C
D
1
2
3
4
5
6
A
B
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.
•
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 : TAPE PLAY
(
no mark : TAPE PLAY
(
) : TAPE RECORD
• 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
: TUNER (FM/AM)
E
: TAPE PLAY
a
: TAPE RECORD
J
: CD PLAY
R202
C202
R203
C203
C204
R204
C205
C302
R103
C103
R104
R102
C102
C104
C105
R101
R201
R210
R110
R111
C106
C303
C206
R309
R211
R302
R303
R304
R105
R205
R106
R206
R305
R306
C306
R308
Q301
R307
R301
C301
IC301
C107
C207
HE301
HRP301
T301
CN303
C101
C201
C307
C305
JC
3
0
2
JC301
JC304
JC303
68
47
10V
68k
0.047
0.0022
2.2k
47p
100
10V
68k
0.047
2.2k
68
47
10V
0.0022
47p
15k
15k
100
100
4.7k
1
50V
100
10V
1
50V
47
4.7k
4.7k
4.7k
1k
15k
15k
2.2k
2.2k
150
6.8k
0.01
22k
2SC2412KT
-146-QR
15
1M
100
10V
10V
TA2068N
470p
470p
13P
0.001
0.001
0.0022
470p
TAPE
GND
6V
TU-IN-L
TU-IN-R
CD-IN-L
CD-IN-R
L-OUT
R-OUT
LINE
AGC
L.PO
L.NF
L.RO
L.IN
REF
GND
R.IN
R.RO
R.NF
R.PO
MIC.NF
L.LIN
MIC
I/EX
L.RAD
REC
L.LO
VCC
R.LO
LINE
R.RAD
TAPE
R.LIN
MIC
REC/PB EQ AMP,
SELECT SWITCH
1
4
(REC/PB HEAD)
(ERASE HEAD)
L-CH
R-CH
BIAS OSC
BIAS OSC
PB
REC
(REC/PB)
S301
-1
-2
REC
(Page 29)
(Page
30)
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