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1
SERVICE MANUAL
E Model
SA-WMS366/WMS566
SUBWOOFER
Ver 1.0 2004. 06
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-936-01
2004F04-1
© 2004. 06
Speaker system
Active subwoofer,
magnetically shielded
magnetically shielded
Speaker unit
Woofer: 20 cm
Enclosure type
Bass Reflex
Reproduction frequency range
28 Hz – 200 Hz
Continuous RMS power output
WMS366:
WMS366:
135 W (6 ohms, 100 Hz,
10% THD)
10% THD)
WMS566:
150 W (6 ohms, 100 Hz,
10% THD)
10% THD)
Inputs
INPUT (input pin jack)
SPECIFICATIONS
General
Power requirements
E2 model: 120 V AC, 50/60 Hz
Others models:
E2 model: 120 V AC, 50/60 Hz
Others models:
220 – 240 V AC, 50/60 Hz
Power consumptions
120 W
1 W (standby mode)
1 W (standby mode)
Dimensions (w/h/d)
WMS366:
WMS366:
Approx. 290
×
400
×
424 mm,
including front grille
WMS566:
Approx. 290
×
400
×
430 mm,
including front grille
Mass
Approx. 13 kg
Design and specifications are subject to change without
notice.
notice.
• Abbreviation
E2: 120 V AC Area in E model
E2: 120 V AC Area in E model
• SA-WMS366/WMS566 are the
subwoofer section in SA-VE366T/
VE566H.
VE566H.
2
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.
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Printed Wiring Boards – Main Section – ............................ 5
1-2. Schematic Diagram – Main Section – ................................. 6
1-3. Printed Wiring Boards – Control Section – ......................... 7
1-4. Schematic Diagram – Control Section – ............................. 8
1-2. Schematic Diagram – Main Section – ................................. 6
1-3. Printed Wiring Boards – Control Section – ......................... 7
1-4. Schematic Diagram – Control Section – ............................. 8
2. EXPLODED VIEWS
2-1. Front Section ....................................................................... 9
2-2. Rear Section ...................................................................... 10
2-2. Rear Section ...................................................................... 10
3. ELECTRICAL PARTS LIST
........................................ 11
SA-WMS366/WMS566
•
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
• Unleaded solder melts at a temperature about 40
°
C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°
C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
3
SA-WMS366/WMS566
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
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.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : Power on
no mark : Power on
• 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
• Abbreviation
E2
: 120 V AC Area in E model.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
•
Abbreviation
E2
E2
: 120 V AC Area in E model.
SECTION 1
DIAGRAMS
• Note for Printed Wiring Boards and Schematic Diagrams
• Circuit Boards Location
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
MAIN board
CONTROL board
POWER SUPPLY board
POWER AMP board
POWER SWITCH board
4
SA-WMS366/WMS566
• IC Block Diagram
IC701 STK404-140S (POWER AMP Board)
1
2
3
4
5
6
7
8
9
10
11
12
13
