Printed Wiring Board - Tape Deck Section; Schematic Diagram - Tape Deck Section - Sony CFD-E75L Service Manual

CFD-E75L
6-9. PRINTED WIRING BOARD – TAPE DECK Section –
• See page 23 for Circuit Boards Location.
1 2 3
TC BOARD
A
R111
B
R105
R309
R304
C
B
R211
R303
MAIN BOARD
CNP322
(Page 29)
R302
R205
R312
D
R310
R311
• Semiconductor
Location
Ref. No. Location
IC301 C-3
Note on Printed Wiring Board:
• X : parts extracted from the component side.
Q301 D-4
• Y : parts extracted from the conductor side.
Q302 D-2
• : Pattern from the side which enables seeing.
Q303 D-2
(The other layers' patterns are not indicated.)
4 5
4
1 3 2
R110
R301
R104 R103
C101
R106
S301
(REC/PB)
PB
-1 -2
r
R201
REC
R202
R206
R305
R308
C310
C308
1-679-592-
6-10. SCHEMATIC DIAGRAM – TAPE DECK Section –
• See page 23 for Waveform.
6
L-CH
HRP301
REC/PB
HEAD
R-CH
HE301
(ERASE HEAD)
1
L-CH
HRP301
(REC/PB HEAD)
R-CH
4
HE301
(ERASE HEAD)
S301
(REC/PB)
REC
PB
-1 -2
11
(11)
Q302,303
ISS SWITCHING
28 28
• See page 37 for IC Block Diagram.
C301
REC/PB EQ AMP,
100
C102 R102 R103 SELECT SWITCH
10V
47 10V 68 68k
R301
1M
C104
0.0022 AGC
L.LIN
R104
2.2k
C101
L.PO MIC
0.001
I/EX
C103
0.047
C107 L.NF
470p L.RAD
L.RO
REC
R110
R101 C105
100
15k 47p
L.IN
L.LO
REF
VCC
C302
100 10V
GND
R.LO
R210 C205
100 47p
R.IN
LINE
R201
15k
R.RO
R.RAD
C207 R.NF
470p TAPE
C203 R204
0.047 2.2k
C201
R.PO
0.001 R.LIN
R302
4.7k
MIC.NF
C204
MIC
0.0022
IC301
TA2068N
R106
2.2k
R206
C202 R202 R203
2.2k
47
68 68k
10V
R305
T301 150
BIAS OSC
C310 C308 C305
220p 100p 470p R306
6.8k
R308 C306
22k 0.01
Q302
2SC2412KT- Q303
Q301
146-QR 2SC2412KT-146-QR
2SC2412KT
-146-QR
BIAS OSC
C304
C307
R310 R312 R311 R313 47 R307
0.0022
1M 1k 1M 1k 10V 15
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
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
(
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
E
a
J
R111
4.7k
C106
1
50V
C303
100 10V
C206
1
50V
R309
47
R211
4.7k
R303 R304
4.7k 1k
CN303
13P
TU-IN-L
R105 TU-IN-R
15k
CD-IN-L
CD-IN-R
L-OUT
R205 JC301
15k R-OUT
LINE
TAPE
6V
GND
(Page 30)
JC303 JC304
1 / W or less unless otherwise
4
) : TAPE RECORD
: TUNER
: TAPE PLAY
: TAPE RECORD
: CD PLAY