Sony MDS-JB930 - Notes on Diagrams; Printed Wiring Board Conventions; Schematic Diagram Conventions

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6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
Note on 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.
•
¢
: internal component.
• C : panel designation.
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
®
: Through hole.
• b : Pattern from the side which enables seeing.
• U : B+ Line.
• V : B– Line.
• 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.
E : PLAY (ANALOG OUT)
p : PLAY (DIGITAL OUT)
j : REC (ANALOG IN)
l : REC (DIGITAL IN)
• Abbreviation
CND : Canadian model
Note:
The components identi-
fied by mark ! or dotted
line with mark ! are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
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.
B
These are omitted.
CE
Q
• Abbreviation
CND : Canadian model
B
These are omitted.
CE
Q
• Indication of transistor.