Read Sony CFD-V27 (serv.man2) Service Manual online
CFD-V27
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R
DISPLAY/ENTER
PLAY MODE
2-4. SCHEMATIC DIAGRAM MAIN SECTION
• Refer to page 7 for Printed Wiring Board.
• Refer to page 22 for IC Block Diagrams.
• Waveforms
2
IC701
#£
RFO
3
IC702
`
XTAO
0.2V/div
0.5
0.5
µ
sec/div
2V/div
50
50
µ
sec/div
104
5 Vp-p
1.0 Vp-p
16.9 MHz
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.
•
¢
: internal component.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 3V and fed with regulated dc power
supply from external power voltage jack (J301) .
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
[
[
] : FM
<
> : PB
• 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.
• Signal path.
• Signal path.
F
: FM
f
: AM
E
: PB
a
: REC
J
: CD
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
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