Read Sony SA-WM40 Service Manual online
3
3
SECTION 1
GENERAL
SECTION 2
DIAGRAMS
• Location of controls
– Front View (a part) –
– Upper View (a part) –
– Rear View (a part) –
2-1.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
• Circuit Boards Location
CONTROL board
POWER SW UC board
PS board
POWER TR board
MAIN board
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
V
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : Power on
(
no mark : Power on
(
) : Automatic power off
∗
: 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.
• Signal path.
F
: AUDIO
• Abbreviation
AUS
: Australian model
CND : Canadian model
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
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