Sony CDX-F5500 (XT-XM1), Руководство по обслуживанию

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20
CDX-F5500/F5505X
• Waveforms
— Servo Board —
(MODE: CD PLAY)
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 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.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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.
F : FM
f
: AM (US, Canadian, E model)
or MW (AEP, UK model)
J : CD
• Abbreviation
CND : Canadian model
for printed wiring boards:
•
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 layer’s patterns are not indicated.)
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.
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.
•
Abbreviation
CND : Canadian model
IC3
whwk (A, C)
3
0V
Approx.
150mVp-p
16.9344MHz
IC3 uj
(XTAO)
0V
2
Approx. 100mVp-p
IC3 wd
(FEI)
1
Approx. 100mVp-p
IC3 wa (TEI)
IC3 wjwl
(B, D)
4
6
2Vp-p
IC3
ra (RFACO)
5
18.43MHz
IC4 ia
(X1)
7
1Vp-p
Approx.
150mVp-p
Approx.
0.8Vp-p
32.768kHz
IC500 qh
(XOUT)
— Main Board —
2
3
27.648MHz
IC500
qs
(OSCOUT)
2.8Vp-p
2.6Vp-p
1
8.664MHz
IC50
q;
(XTO)
2.8Vp-p