Schematic Diagram - Sony ICD-55 Service Manual

4-3. SCHEMATIC DIAGRAM • •
See page 14 for Waveforms. See page 15 for IC Block Diagrams.
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ICD-55
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
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• ¢ : internal component.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
supply from battery terminal.
no mark : PLAY
( ) : REC
< > : STOP
∗
: Impossible to measure
• 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 : PLAY
L : REC
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