SS-MS155
Table of contents
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1
Ver 1.0 2004. 05
SERVICE MANUAL
AEP Model
UK Model
E Model
SS-MS155 (front, center and surround speakers)
Speaker system Full range, magnetically
shielded
Speaker units 7 cm, cone type
Enclosure type Closed type
Rated impedance 8 ohms
Power handling capacity
Maximum input power: 100 W
Sensitivity level 83 dB (1 W, 1 m)
Frequency range 120 Hz - 20,000 Hz
Dimensions (w/h/d) Approx. 91 × 96 × 102 mm,
including front grille
Mass Approx. 650 g each
SPECIFICATIONS
SA-WMS155 (subwoofer)
Speaker system Active subwoofer,
magnetically shielded
Speaker unit Woofer: 16 cm, cone type
Enclosure type Bass refl ex
Reproduction frequency range
32 Hz - 200 Hz
Continuous RMS power output
55 W (4 ohms, 100 Hz,
10 % THD)
Input
LINE IN (input pin jack)
General
Power requirements 220 - 240 V AC, 50/60 Hz
Power consumptions 45 W
Dimensions (w/h/d) E model:
Approx. 210 × 355 × 335
mm
AEP, UK model:
Approx. 210 × 355 × 330
mm
Mass Approx. 8 kg
• SA-VE155 consists of the following models respectively.
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-869-01
2004E04-1
© 2004. 05
MICRO SATELLITE SPEAKER SYSTEM
SA-VE155/WMS155/
SS-MS155
SUBWOOFER SA-WMS155
FRONT, CENTER AND
SURROUND SPEAKER
SS-MS155
SA-WMS155 SS-MS155
Supplied accessories
Foot pads (20)
Audio connecting cord (1)
Speaker connecting cords, 10 m (2)
Speaker connecting cords, 3.5 m (3)
Design and specifi cations are subject to change
without notice.
2
SA-VE155/WMS155/SS-MS155
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
PA RT 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
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°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.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
TABLE OF CONTENTS
1. GENERAL
Location of Controls ................................................................ 3
2. DIAGRAMS
2-1. Note for Printed Wiring Boards and
Schematic Diagrams ............................................................ 3
2-2. Circuit Boards Location ...................................................... 3
2-3. Printed Wiring Boards (SA-WMS155) ............................... 4
2-4. Schematic Diagram (SA-WMS155) ................................... 5
2-5. IC Block Diagram ............................................................... 6
3. EXPLODED VIEWS .......................................................... 7
4. ELECTRICAL PARTS LIST ........................................... 8
33
SA-VE155/WMS155/SS-MS155
SA-VE155/WMS155/SS-MS155
2-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
2-2. CIRCUIT BOARDS LOCATION
SECTION 2
DIAGRAMS
SECTION 1
GENERAL
LOCATION OF CONTROL
This section is extracted
from instruction manual.
English
WARNING
To prevent fi re or shock hazard, do not expose the
unit to rain or moisture.
To prevent fi re, do not cover the ventilation of the apparatus
with news papers, table-cloths, curtains, etc. And don’t place
lighted candles on the apparatus.
To prevent fi re or shock hazard, do not place objects fi lled with
liquids, such as vases, on the apparatus.
To avoid electrical shock, do not open the cabinet. Refer
servicing to qualifi ed personnel only.
Do not install the appliance in a confi ned space, such as a
bookcase or built-in cabinet.
About this manual
The SA-VE155 is a 5.1 channel speaker system consisting of
two front speakers, one center speaker, two surround speakers,
and one subwoofer. It supports Sony Digital Cinema Sound,
Dolby* Pro Logic, and Dolby Digital etc., and is thus geared
towards the enjoyment of movies.
* “Dolby” and the double-D symbol are trademarks of Dolby
Laboratories.
Precautions
On safety
• Before operating the system, be sure that the operating
voltage of the system is identical with that of your local
power supply.
• The unit is not disconnected from the AC power source
(mains) as long as it is connected to the wall outlet, even if
the unit itself has been turned off.
• Unplug the system from the wall outlet if it is not to be used
for an extended period of time. To disconnect the cord, pull
the cord by grasping the plug. Never pull the cord itself.
• Should any liquid or solid object fall into the system, unplug
the system’s power cord and have the system checked by
qualifi ed personnel before operating it any further.
• AC power cord must be changed only at the qualifi ed service
shop.
On operation
• Do not drive the speaker system with a continuous wattage
exceeding the maximum input power of the system.
• If the polarity of the speaker connections are not correct,
the bass tones will be weak and the position of the various
instruments obscure.
• Contact between bare speaker wires at the speaker terminals
may result in a short circuit.
• Before connecting, turn off the amplifi er to avoid damaging
the speaker system.
• The speaker grille cannot be removed. Do not attempt to
remove the grille on the speaker system. If you try to remove
it, you may damage the speaker.
• The volume level should not be turned up to the point of
distortion.
If you encounter color irregularity on a
nearby TV screen
This speaker system is magnetically shielded to allow it to be
installed near a TV set. However, color irregularities may still
be observed on certain types of TV sets.
If color irregularity is observed...
c Turn off the TV set, then turn it on again after 15 to 30
minutes.
If color irregularity is observed again...
c Place the speakers further away from the TV set.
If howling occurs
Reposition the speakers or turn down the volume on the
amplifi er.
On placement
• Do not set the speakers in an inclined position.
• Do not place the speakers in locations that are:
— Extremely hot or cold
— Dusty or dirty
—Very humid
— Subject to vibrations
— Subject to direct sunlight
• Use caution when placing the speaker on a specially
treated (waxed, oiled, polished, etc.) fl oor, as staining or
discoloration may result.
On cleaning
Clean the speaker cabinets with a soft cloth lightly moistened
with a mild detergent solution or water. Do not use any type
of abrasive pad, scouring powder or solvent such as alcohol or
benzine.
If you have any questions or problems concerning your speaker
system, please consult your nearest Sony dealer.
Hooking up the system
Connect the speaker system to the speaker output terminals of
an amplifi er (A).
Make sure power to all components (included the subwoofer)
is turned off before starting the hook-up.
Notes (B)
• Make sure the plus (+) and the minus (–) terminals on the
speakers are matched to the corresponding plus (+) and
minus (–) terminals on the amplifi er.
• Be sure to tighten the screws of the speaker terminals
securely as loose screws may become a source of noise.
• Make sure all connections are fi rm. Contact between bare
speaker wires at the speaker terminals may cause a short
circuit.
• For details regarding the connections on the amplifi er side,
refer to the manual that was provided with your amplifi er.
Tip
Black or black striped wires are minus (–) in polarity, and
should be connected to the minus (–) speaker terminals.
A
eEEe
Ee
LINE IN
WOOFER OUT
FRONT
CENTER
SURROUND
R
R
L
L
Ee
Ee
Ee
Ee
Ee
Front (Right)
Avant (droite)
Center
Centre
Subwoofer
Caisson de grave
Front (Left)
Avant (gauche)
Surround
(Right)
Effet surround
(droite)
Surround
(Left)
Effet surround
(gauche)
Ampli er
Ampli cateur
3.5m
3,5m
3.5m
3,5m
3.5m
3,5m
10m
10m
E
e
E
e
E
e
E
e
B
Positioning the speakers
Location of each speaker (C)
Each speaker should face the listening position. Better
surround effect will result if all speakers are set at the same
distance from the listening position.
Place the front speakers at a suitable distance to the left and
right of the television.
Place the subwoofer on either side of the television.
Place the center speaker on the top-center of the TV set.
The placement of surround speakers greatly depends on the
confi guration of the room. The surround speakers may be
placed on both sides of the listening position A or behind the
listening position B.
Setting the speakers
To prevent speaker vibration or movement while listening,
attach the supplied foot pads to the bottom four corners of the
front speakers, center speaker and surround speakers (D).
Setting the center speaker (E)
Set the center speaker fi rmly on top of the TV set, making sure
it is completely level.
Setting the speakers using the optional speaker
stands (F)
For greater fl ex ibility in the positioning of the speakers, use the
optional WS-FV11 or WS-WV10D speaker stand (available
only in certain countries).
To hang the front, center and surround speakers
with a hook (not supplied) on the wall (G)
You are responsible for the proper selection and use of
mounting hardware that you purchase at hardware stores, and
for the proper and safe mounting of the speakers.
Tip
The height of the front speakers should be adjusted to about the
center of the TV screen (H).
Setting the amplifi er
When connecting to an amplifi er with internal multi channel
decoders (Dolby Digital, DTS**, etc.), you should use the
setup menus for the amplifi er to specify the parameters of your
speaker system.
See the table below for the proper settings. For details on the
setting procedure, refer to the manual that was provided with
your amplifi er.
Speaker setup
For Set to
Front speakers SMALL
Center speaker SMALL
Surround speakers SMALL
Subwoofer ON (or YES)
If you use the amplifi er with adjustable crossover frequency,
it is recommended to select 150 Hz (or close to this fi gure) as
the crossover frequency for your front, center and surround
speakers.
** “DTS” and “DTS Digital Surround” are registered
trademarks of Digital Theater Sys tems, Inc.
Listening to the sound (I)
First, turn down the volume on the amplifi er. The volume
should be set to minimum before you begin playing the
program source.
1
Turn on the amplifi er and select the program
source.
2
Press POWER on the subwoofer.
The POWER indicator on the subwoofer
lights up green.
3
Play the program source.
Adjusting the subwoofer (I)
Rotate LEVEL to adjust the volume.
Set the volume level to best suit your pref er ence
according to the program source.
Notes
• Some amplifi er functions for enhancing the sound may cause
distortion in the subwoofer. If such distortion occurs, turn off
those functions.
• To enjoy high-quality sound, do not turn the subwoofer
volume too high.
Troubleshooting
Should you encounter a problem with your speaker system,
check the following list and take the indicated measures. If the
problem persists, consult your nearest Sony dealer.
There is no sound from the speaker system.
• Make sure all the connections have been correctly
made.
• Make sure the volume on the amplifi er has been
turned up properly.
• Make sure the program source selector on the
amplifi er is set to the proper source.
• Check if headphones are connected. If they are,
disconnect them.
There is distortion in the subwoofer sound
output.
• Check if any sound-enhancing functions have been
activated on the amplifi er. If they have, turn them
off.
There is hum or noise in the speaker output.
• Make sure all the connections have been correctly
made.
• Make sure none of the audio components are
positioned too close to the TV set.
The sound has suddenly stopped.
• Make sure all the connections have been correctly
made. Contact between bare speaker wires at the
speaker terminals may cause a short circuit.
HF
WS-WV10D
(for front, center and surround speakers)
(pour les enceintes avant, centrale et ‡ effet
surround)
WS-FV11
E
Foot pads
Tampons
autocollants
G
Hook
Crochet
I
POWER indicator
Voyant POWER
LINE IN
LEVEL
POWER
C
Front (Right)
Avant (droite)
Center
Centre
Subwoofer
Caisson de grave
Surround (Right)
Effet surround (droite)
Front (Left)
Avant
(gauche)
Surround (Left)
Effet surround (gauche)
AA
BB
D
Foot pads
Tampons autocollants
Note (Singaporean model only)
Protection circuit is contained in the satellite speakers. If the
speakers are overdriven for certain minutes, the protection
circuit will automatically reduce the sound volume. In the case,
stop the program source for 2-3 minutes. Before playing the
source again, turn down the volume level of the amplifi er.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C : panel designation.
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.
• A : B+ Line.
• B : B– Line.
•Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : Power on
•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
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
TRANSFOMER boar
d
POWER board
CONTROL board
POWER SWITCH board
LED board
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