Sony CDX-715 Service Manual ▷ View online
CDX-715
– 35 –
– 36 –
– MAIN Section – MAIN Board (2/2)
•
•
See page 40 for Waveforms.
•
See page 43 and 44 for IC Block Diagrams.
•
See page 29 to 32 for Printed Wiring Board.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4 V 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 : PLAY
no mark : PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD
CDX-715
– 37 –
– 38 –
7-6.
PRINTED WIRING BOARD – JACK Section –
7-7.
SCHEMATIC DIAGRAM – JACK Section –
Caution:
Pattern face side:
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.
• Abbreviation
G
: German model.
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
r
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Signal path.
J
: CD
• Abbreviation
G
: German model.
– 39 –
• Waveforms
– RF Board –
– RF Board –
1
IC11
1
(FEO)
500 mV/DIV, 500 nsec/DIV
2
IC11
2
(FEI)
50 mV/DIV, 1 µsec/DIV
3
IC11
$¶
(TEI)
200 mV/DIV, 500 µsec/DIV
– MAIN Board (1/2) –
1
IC101
@¶
MDP
2
IC101
$ª
WDCK
3
IC101
%º
LRCK
4
IC101
%¢
BCKO
5
IC101
^™
RFCK
1.4
±
0.3 Vp-p
Approx. 110 mVp-p
Approx. 280 mVp-p
2.5 Vp-p
3.8
µ
s
5 Vp-p
11.4
µ
s
5 Vp-p
22.5
µ
s
6 Vp-p
472 ns
5 Vp-p
136.5
µ
s
– 40 –
6
IC101
&¢
WFCK
7
IC101
*ª
XTAI
8
IC201
#¡
EXTAL
9
IC401
!¶
BCK
0
IC401
!ª
LRCK
!¡
IC102
0
BCKO
!™
IC102
!¡
LRCKO
– MAIN Board (2/2) –
!£
IC601
!∞
XI
5 Vp-p
137
µ
s
4.5 Vp-p
59 ns
3.3 Vp-p
124.5 ns
5.9 Vp-p
472 ns
5.8 Vp-p
22.8
µ
s
5.3 Vp-p
472 ns
5.3 Vp-p
22.6
µ
s
2.9 Vp-p
59 ns
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