21 21
CDX-R3000/RW300
3-6. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 3-7. WAVEFORMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
•
f
: internal component.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
a
: Through hole.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section
no mark : CD PLAY
• Main (1/2), (2/2) and Display sections
no mark : FM
(): AM
<>: CD PLAY
∗
: Impossible to measure
•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
F : FM
f : AM
• Abbreviation
CND : Canadian model.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
Q
C
These are omitted
EB
E
These are omitted
CB
C
These are omitted
BE
• Abbreviation
CND : Canadian model.
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.
3.68MHz
IC801
is
(X0)
— Main Board —
1
2
32.768kHz
IC801
i;
(X0A)
2.4Vp-p
1.7Vp-p
Ver. 1.2
— Servo Board —
(MODE: CD PLAY)
IC1
uj
(AGCI)
1
2
16.9344MHz
IC1
wd
(XTAL)
0.85V to
1.45Vp-p
1.2Vp-p
Approx. 620mVp-p
IC1
od
(FEO)
3
0V
4
0V
Approx. 200mVp-p
IC1
oh
(TEO)
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