Read Sony SA-WX900 Service Manual online
4
SA-WX900
SECTION 2
DIAGRAMS
For Schematic Diagrams.
Note:
Note:
• 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.
•
C
: panel designation.
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
•
B
: B– Line.
• Voltages are dc with respect to ground under no-signal conditions.
• no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
• no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production tolerances.
• Signal path
.
F
: AUDIO
• Abbreviation
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
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
2-1. CIRCUIT BOARDS LOCATION
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model
FILTER board
CONTROL board
SWITCH board
INPUT board
PROTECT board
AUTO POWER board
POWER SW board
ICE250-SW
SWITCHING
REGULATOR
REGULATOR
LINE FILTER board
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