Sony SA-VE356T / SA-VE556H / SA-WMS356 / SA-WMS556 Service Manual ▷ View online
SERVICE MANUAL
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
AEP Model
UK Model
SUBWOOFER
9-877-843-01
2004E0478-1
© 2004.05
© 2004.05
Ver 1.0 2004.05
SPECIFICATIONS
SA-WMS356/WMS556
• SA-WMS356/WMS556 are the subwoofer
section in SA-VE356T/VE556H.
Speaker system Active subwoofer,
magnetically shielded
Speaker unit
Woofer: 15 cm
×
2, cone type
Enclosure type
Acoustically loaded
Bass Reflex
Bass Reflex
Reproduction frequency range
28 Hz - 200 Hz
Amplifier section
Continuous RMS power output
Continuous RMS power output
SA-WMS356:
120 W (6 ohms, 100 Hz,
10 % THD)
SA-WMS556:
150 W (6 ohms, 100 Hz,
10 % THD)
120 W (6 ohms, 100 Hz,
10 % THD)
SA-WMS556:
150 W (6 ohms, 100 Hz,
10 % THD)
Inputs
INPUT (input pin jack)
General
Power requirements
230 - 240 V AC, 50/60 Hz
Power consumptions
120 W
1 W (standby mode)
1 W (standby mode)
Dimensions (w/h/d)
Approx. 180
×
405
×
501 mm,
including front grille
Mass
Approx. 12 kg
Design and specifications are subject to change
without notice.
without notice.
2
SA-WMS356/WMS556
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.
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
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
°
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
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 viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
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.
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
TABLE OF CONTENTS
1.
DIAGRAMS
1-1.
Printed Wiring Board – MAIN Section – ........................
5
1-2.
Schematic Diagram – MAIN Section – ...........................
6
1-3.
Printed Wiring Board – CONTROL Section – ................
7
1-4.
Schematic Diagram – CONTROL Section – ...................
8
2.
EXPLODED VIEWS
2-1.
Front Panel Section .........................................................
9
2-2.
Rear Cover Section .......................................................... 10
2-3.
Bottom Panel Section ...................................................... 11
3.
ELECTRICAL PARTS LIST
.................................. 12
3
SA-WMS356/WMS556
SECTION 1
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
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 and waveforms are dc with respect to ground un-
der 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 production
tolerances.
tolerances.
• Signal path.
F
: AUDIO
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: 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: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
LED board
MAIN board
CONTROL board
POWER AMP board
POWER SUPPLY board
POWER SWITCH board
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• Circuit Boards Location
4
SA-WMS356/WMS556
1
2
3
4
5
6
7
8
9
10
11
12
13
IC701 STK404-140S
•
IC Block Diagram
– POWER AMP Board –