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3
SA-WMSP2/WMSP4
SECTION 1
DIAGRAMS
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• b : Pattern from the side which enables seeing.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND 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.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. p: pF. 50
• All capacitors are in µF unless otherwise noted. p: pF. 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• All resistors are in
• 5 : fusible resistor.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• B : B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : Power on
no mark : Power on
• Voltages are taken with a VOM (Input impedance 10M
Ω
).
Voltage variations may be noted due to normal preduction
tolerances.
tolerances.
• Signal path.
F
: AUDIO
• Abbreviation
AR
: Argentin model.
CND : Canadian model.
MX
MX
: Mexican model.
MY
: Malaysia model.
SP
: Singapore model.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4
SA-WMSP2/WMSP4
• CIRCUIT BOARD LOCATION
LED board
SWITCH board
INPUT JACK board
MAIN board
CONTROL board
POWER TRANS board
5
5
SA-WMSP2/WMSP4
1-1. Printed Wiring Boards
IC301
IC202
IC101
T1
POWER TRANSFORMER
Ref. No.
Location
D202
E-4
D301
C-1
D302
C-1
D304
D-3
D401
A-3
D402
B-3
D403
C-3
D404
F-3
D405
F-2
D501
C-4
D502
B-1
IC101
F-3
IC202
F-2
IC301
D-1
Q501
D-4
Q502
D-3
Q503
D-4
Q504
D-4
Q505
B-1
• Semiconductor
Location
• See page 3 for Circuit Boards Location.
6
6
SA-WMSP2/WMSP4
1-2. Schematic Diagrams
• See page 4 for IC Block Diagrams.
IC B/D
