Schematic Diagram (Microcomputer Section) - Sony ICF-C723 Service Manual
Fm/am pll synthesized clock radio
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Also See for ICF-C723:
- Operating instructions manual (11 pages) ,
- Operating instructions (2 pages) ,
- Limited warranty (1 page)
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4-3. SCHEMATIC DIAGRAM (MICROCOMPUTER SECTION)
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ICF-C723/C723L
WAVEFORM
r
1
75kHz
IC101 @¢ XOUT
VOLT/DIV : 0.5V AC
TIME/DIV : 5 µsec
Note:
• 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
1
/
W or less unless otherwise
4
specified.
• U : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : RADIO SECTION : FM,
VOICE MEMO SECTION : PLAY
(
) : RADIO SECTION : AM (MW),
VOICE MEMO SECTION : REC
• 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.
• Abbreviation
AUS : Australian
IT
: Italian
– 12 –
1.8Vp-p
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