Sony CDX-CA750 Service Manual page 27
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Also See for CDX-CA750:
- Installation/connections (2 pages) ,
- Operating instructions manual (170 pages) ,
- Operating instructions manual (204 pages)
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Q Q
3 7 6 3 1 5 1 5 0
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
/
W or less unless otherwise
4
specified.
•
%
: indicates tolerance.
•
: 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
piéce portant le numéro
number specified.
spécifié.
• 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 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.
F
: FM
f
: AM/MW/LW
T E
J
: CD
L
1 3 9 4 2 2 9 6 5 1 3
for printed wiring boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: parts mounted on the conductor side.
x
•
: Through hole.
a
•
: 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.
w w w
.
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9
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
0V
Approx. 200mVp-p
IC1
qd
(TE)
2
0V
Approx. 620mVp-p
IC1
qf
(FE)
3
1.2Vp-p
qh
(RFO)
IC1
4
1.4Vp-p
16MHz
IC501
ih
(XTAI)
Q
Q
5
3
7
6
3
1
5
1
4.2Vp-p
10MHz
IC5
ea
(X IN)
c o
.
27
27
CDX-CA750/CA750X/CA760X
2
4
2
9
8
Main Board
—
—
1
5Vp-p
4.332MHz
IC201
4
(OSCD)
2
5.1Vp-p
32.768kHz
IC501
uf
(X0A)
3
2.2Vp-p
3.68MHz
IC501
os
(XO)
4
1.6Vp-p
18.432MHz
ih
(EXTAL)
IC701
5
0
8
9
2
4
9
8
2
m
9
9
9
9
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