Read Sony CFD-G70L Service Manual online
36
CFD-G70L
Note on Schematic Diagram:
• All capacitors are in
• 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.
•
5
: fusible resistor.
• C : panel designation.
Note:
The components identified by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
The components identified by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
• A : B+ Line.
• H : adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9 V and fed with regulated dc power
• H : adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
CCB
INTERF
ACE
1
2
3
4
5
6
7
8
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
15
14
13
12
11
10
9
DI
CE
VSS
TEST
LOUT
LBASS2
LBASS1
LTRE
LIN
LSELO
TAPE
TUN
LINE
CD
NC
CL
VDD
VREF
RVREF
LVREF
NC
ROUT
RBASS2
RBASS1
RTRE
RIN
RSELO
TAPE
TUN
LINE
CD
NC
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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
: FM
f
: AM
E
: PB
a
: REC
J
: CD
IC321 LC75342
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