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5-3.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: internal component.
f
•
: 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
(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 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
/
W or less unless otherwise
4
specified.
•
: internal component.
f
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
Replace only with part
pièce por tant le numéro
number specified.
spécifié.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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
• Waveforms
– RF Board –
1 IC101 qg (RFAC) (CD play mode)
+ 0.3
1.4
Vp-p
– 0.4
2 IC101 qh (FE) (CD play mode)
Approx
180 mVp-p
3 IC101 qk (TE) (CD play mode)
Approx
900 mVp-p
19
19
CDX-T69/T69X
– MAIN Board –
1 IC301 ia (X1) (CD play mode)
3.8 Vp-p
250 ns
2 IC401 wh (MDP) (CD play mode)
1.8 Vp-p
7.5 µ s
3 IC401 yj (XTAO) (CD play mode)
4.2 Vp-p
59.1 ns
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