Sony NW-E99 - Network Walkman Manual de serviço - Página 8

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Sony NW-E99 - Network Walkman Manual de serviço
NW-E99
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in Ω and
1
/
W or less unless otherwise specified.
4
•
%
: indicates tolerance.
• C : panel designation.
•
: B+ Line.
• Power voltage is dc 1.5 V and fed with regulated dc power supply
from battery terminal.
• Voltages and waveforms are dc with respect to ground under no-
signal (detuned) conditions.
no mark : PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production toler-
ances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler-
ances.
• Circled numbers refer to waveforms.
• Signal path.
F
: PLAY
a
: DIGITAL OUT
k
: DIGITAL IN
• Waveform
1
IC700 8 (OSCOUT)
31.25
µ sec
0.5 V/div, 10 µ sec/div
8
SECTION 4

DIAGRAMS

1.1 Vp-p
Note on Printed Wiring Board
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
•
: Through hole.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.