Printed Wiring Board - Cd Section - Sony CFD-S300 Service Manual

CFD-S300
Ver 1.1
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• 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.
• : internal component.
f
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
une marque 0 sont critiques
fied by mark 0 or dotted
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
piéce por tant le numéro
Replace only with part
spécifié.
number specified.
• A : B+ Line.
• H : adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• 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
E : PB
a : REC
J : CD
• Abbreviation
CND : Canadian model.
E92 : AC 120V area in E model.
AUS : Australian model.
KR : Korean model.
MX : Mexican model.
SP : Singapore model.
TW : Taiwan model
Common Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : internal component.
f
• : Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
E92 : AC 120V area in E model.
AUS : Australian model.
KR : Korean model.
MX : Mexican model.
SP : Singapore model.
TW : Taiwan model
6-5. PRINTED WIRING BOARD — CD SECTION — • Refer to page 17 for Circuit Boards Location.
1 2 3
A
B
C
D
E
F
G
H
I
J
20
4 5 6
(Page 24)
20
: Uses unleaded solder.
7 8 9 10