Sony SA-VE502 Service Manual page 3

• Location of Controls
SA-WMS5
– Front view –
– Rear view –
SECTION 1
GENERAL
LINE IN/OUT jack
SPEAKER IN/OUT
terminal
POWER SAVE
switch
– 3 –
2-1. 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.
(The other layers' patterns are not indicated.)
• Indication of transistor.
Q
B C E
These are omitted.
• Circuit Boards Location
– SA-WMS5 –
POWER SWITCH board
LED board
CONTROL board
SECTION 2
DIAGRAMS
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
/ 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 ! or dotted une marque ! sont critiques
line with mark ! are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce portant le numéro
number specified. spécifié.
• 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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F : AUDIO
• Abbreviation
CND : Canadian
POWER board
MAIN board
AUTO POWER board
– 4 –