Sony SA-WMS835 Manual de servicio - Página 3
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1-1. CIRCUIT BOARDS LOCATION (SA-WMS835)
INPUT SELECT board
LED board
POWER SWITCH board
SECTION 1
DIAGRAMS
INPUT board
IC1
(power amplifier unit)
MAIN POWER board
AUTO POWER board
CONTROL board
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for 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
/
W or less unless otherwise
4
specified.
• 2 : nonflammable resistor.
• C : panel designation.
Note:
Note:
The components identi-
Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
Ne les remplacer que par une
cal for safety.
Replace only with part
piéce portant le numéro
number specified.
spécifié.
• A : B+ Line.
• B : B– Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: AUDIO
• Abbreviation
CND : Canadian model.
SP
: Singapore model.
for printed wiring boards:
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
SP
: Singapore model.
MX
: Mexican model.
AR
: Argentine model.
KR
: korean model.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Q
B C E
These are omitted.
Q
B
C
E
3
3
SA-VE835ED/WMS835/SS-MS835
Ver 1.1