Sony D-EJ011 - Page 7

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D-EJ011
D-EJ011
Note on Printed Wiring Boards.
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• a : Through hole.
• f : internal component
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagrams.
• All capacitors are in µF unless otherwise noted. (p: pF)
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 tolerance.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 3 V and fed with regulated dc power
supply from battery terminal.
•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
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• Indication of transistor.
Note: The components identified by mark 0 or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
SECTION 5
DIAGRAMS
C
B
These are omitted.
E
Q
D
G
These are omitted.
S
Q
•Waverforms
1
IC601 yj XO
2 V/DIV, 50 ns/DIV
59.5 ns
4.5 Vp-p
2
IC801 yd XOUT4M
2 V/DIV, 0.1 µ s/DIV
244 ns
3.5 Vp-p