D-EJ855
13
13
2.0 Vp-p
950 ns
400 to 600
mVp-p
2.4 Vp-p
59.1 ns
2.5 Vp-p
236 ns
2
IC601
w;
(CLOK)
2.0 Vp-p
950 ns
2.0 Vp-p
950 ns
Note on Printed Wiring Board
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• MAIN board is multi-layer printed board. However, the patterns
of intermediate-layer have not been included in the diagram.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• 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
specified.
•
%
: indicates tolerance.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from DC IN jack (J401).
• Voltages and waveforms are dc with respect to ground in
no-signal conditions.
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (OPTICAL OUT)
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
5-4.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
3
IC601
es
(R4M)
4
IC601
rk
(XTAO)
5
IC601
if
(RFAC) (CD play mode)
6
IC601
ik
(RFDC) (CD play mode)
7
IC403
qd
(CLOK)
8
IC801
2
(XIN)
2.5 Vp-p
236 ns
400 to 600
mVp-p
• Waveforms
1
IC404
9
(CLK)
9
IC801
qk
(MSCK)
2.0 Vp-p
950 ns
Содержание CD Walkman D-EJ855
Страница 16: ...D EJ855 16 16 5 7 SCHEMATIC DIAGRAM MAIN Board 2 3 See page 13 for Waveform Page 15 Page 17 ...
Страница 17: ...D EJ855 17 17 IC801 T5AJ4 3HE0 5 8 SCHEMATIC DIAGRAM MAIN Board 3 3 See page 13 for Waveforms Page 16 Page 15 ...
Страница 37: ...D EJ855 5 5 SCHEMATIC DIAGRAM MAIN Board 2 3 Page 4 Page 6 ...
Страница 43: ...11 D EJ855 MEMO ...
