15
D-EJ119/EJ120/EJ121
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.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
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
/
4
W or less unless otherwise specified.
•%: indicates tolerance.
• f : internal component.
• C : panel designation.
• A : B+ Line.
•Total current is measured with CD installed.
• 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 playback
mode.
no mark : CD PLAY
*
: Imposible to measure
•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.
J : CD
• Abbreviation
CND : Canadian model
EE : East European model
E18 : Without remote control model
4E18 : With remote control model
EA : Saudi Arabia model
AUS : Australian model
MX : Mexican model
TW : Taiwan model
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• WAVEFORMS
450 to 650 mVp-p
1 IC601 qd RFI
100mV/DIV, 500ns/DIV
2 IC601 ek XOUT
1V/DIV, 20ns/DIV
3 IC801 2 XIN
1V/DIV, 100ns/DIV
4 IC801 qk SCK-O
1V/DIV, 400ns/DIV
59ns
945ns
1.8 Vp-p
2.6 Vp-p
236ns
2.0 Vp-p
5 IC403 ef SYNC
1V/DIV, 2us/DIV
5.6us
2.2 Vp-p
• Abbreviation
CND : Canadian model
EE : East European model
E18 : Without remote control model
4E18 : With remote control model
EA : Saudi Arabia model
AUS : Australian model
MX : Mexican model
TW : Taiwan model
Ver. 1.2
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
piéce portant le numéro
spécifié.
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