Read Sony HT-SL65 / HT-SL70 / SA-WMSP70 Service Manual online
1
• SA-WMSP70 is the subwoofer
section in HT-SL65/SL70.
Ver 1.0 2003. 09
SERVICE MANUAL
AEP Model
UK Model
SPECIFICATIONS
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-961-240-01
2003I1678-1
© 2003. 09
ACTIVE SUBWOOFER
SA-WMSP70
Speaker system
Active subwoofer,
magnetically shielded
magnetically shielded
Speaker unit
Woofer: 20 cm cone type
Enclosure type
Acoustically Loaded Bass
230 V AC, 50/60 Hz
Reflex
Continuous RMS power output
(6 ohms, 20 – 250 Hz)
(6 ohms, 20 – 250 Hz)
100 W
Reproduction frequency range
36 Hz – 200 Hz
High frequency cut-off frequency
150 Hz
Input
LINE IN (input pin jack)
Power requirements
Power consumption
100 W
Dimensions (w/h/d)
Approx. 270
× 325 ×
398 mm including front
panel
panel
Mass
Approx. 10.0 kg
Design and specifications are subject to change
without notice.
without notice.
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SA-WMSP70
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Circuit Boards Location ...................................................... 3
1-2. Printed Wiring Boards ......................................................... 5
1-3. Schematic Diagram ............................................................. 6
1-2. Printed Wiring Boards ......................................................... 5
1-3. Schematic Diagram ............................................................. 6
2. EXPLODED VIEWS
2-1. Front Section ....................................................................... 7
2-2. Rear Section ........................................................................ 8
2-2. Rear Section ........................................................................ 8
3. ELECTRICAL PARTS LIST
........................................... 9
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
3
SA-WMSP70
1-1. CIRCUIT BOARDS LOCATION
SECTION 1
DIAGRAMS
CONTROL board
LED board
INPUT board
MAIN board
POWER TRANS board
SWITCH board
4
SA-WMSP70
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
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 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Ref. No.
Location
D205
E-10
D206
E-11
D301
G-7
D302
G-8
D304
E-9
D401
D-6
D402
D-7
D403
D-7
D501
D-8
D502
G-7
D602
D-10
D901
A-10
IC202
E-11
IC203
E-12
IC301
G-9
Q501
D-9
Q502
D-9
Q503
D-10
Q504
D-10
Q505
G-7
• Semiconductor
Location
