Read Sony ICD-R100 Service Manual online
– 13 –
– 14 –
– 16 –
– 15 –
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.
•
U
: B+ Line.
• Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : REC
(
no mark : REC
(
) : PLAY
• 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
: PLAY
L
: REC
4-4. SCHEMATIC DIAGRAM (MAIN SECTION)
ICD-R100
r
Refer to page 21 for IC Block Diagrams.
1
2
3
IC503
4
IC102
3
IC102
4
VOLT/DIV : 1 V AC
TIME/DIV : 2
TIME/DIV : 2
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 20
TIME/DIV : 20
µ
sec
VOLT/DIV : 5 V AC
TIME/DIV : 20
TIME/DIV : 20
µ
sec
4.1 Vp-p
91.4 kHz
3.5 Vp-p
REC
11 kHz
PLAY 13
kHz
1.7 Vp-p
14kHz
r
Waveforms
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