3
SECTION 1
DIAGRAMS
1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
•
Indication of transistor.
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : AUDIO
• Voltages are taken with a VOM (input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Abbreviation
CND : Canadian model
• Circuit Boards Location
SA-WMS315
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
POWER board
POWER SWITCH board
LED board
CONTROL board
MAIN board
Summary of Contents for SA-VE312
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