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CFD-S27
5-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – (FORMER TYPE)
1
IC3
1
r
Waveforms
VOLT/DIV : 0.2 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
2
IC801
&™
VOLT/DIV : 1 V AC
TIME/DIV : 0.1
TIME/DIV : 0.1
µ
sec
3
IC801
#º
VOLT/DIV : 1 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
1.1 Vp-p
75 kHz
4.19 MHz
3.6 Vp-p
4.4 Vp-p
32.768 kHz
r
Refer to page 31 for IC Block Diagrams.
Note:
• 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.
Note: The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
no mark : FM (Radio section)
no mark : FM (Radio section)
PLAY (Tape section)
(
) : AM (Radio section)
REC (Tape section)
• Voltages and current are taken with a VOM (Input imped-
ance 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.
• Signal path.
F
: FM
E
: PB (L-CH)
d
: PB (R-CH)
a
: REC (L-CH)
G
: REC (R-CH)
J
: CD
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