Sony D-E330 - Portable Cd Player, Руководство по обслуживанию

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14
D-E330/E331
r
Waveforms
IC601
ek
X OUT
4
VOLT/DIV : 1 V AC
TIME/DIV : 50 nsec
IC801
2
XIN- I
IC401
4
LG
VOLT/DIV : 1 V AC
TIME/DIV : 200 nsec
PLAY MODE
VOLT/DIV : 2 V AC
TIME/DIV : 2
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 2
µ
sec
2 p-p
16.9 MHz
2.6 p-p
4.24 MHz
6.2 Vp-p
5.6
µ
sec
3 Vp-p
5.6
µ
sec
IC401
9
USW
5
IC601
qh
RFGO
VOLT/DIV : 0.1 V AC
TIME/DIV : 0.5 msec
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise specifed.
•
f
: internal component.
Note:
The components identified by mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number specified.
•
A
: B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power supply
from battery terminal.
• Voltages are dc with respect to ground under no-signal conditions.
no mark : PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler
ances.
• Circled numbers refer to waveforms.
• Signal path.
E
: CD PLAY
0.45-0.65 Vp-p
3
2
1