SA-VE155, SA-WMS155, SS-MS155 - Sony Audio Service Manual (repair manual)

sa-ve155, sa-wms155, ss-ms155 service manual
Model
SA-VE155 SA-WMS155 SS-MS155
Pages
9
Size
736.79 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-ve155-sa-wms155-ss-ms155.pdf
Date

Read Sony SA-VE155 / SA-WMS155 / SS-MS155 Service Manual online

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
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
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
3
3
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
eE Ee
E
e
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 exibility 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.
H
F
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)
A
A
B
B
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 board
POWER board
CONTROL board
POWER SWITCH board
LED board
4
4
SA-VE155/WMS155/SS-MS155
SA-VE155/WMS155/SS-MS155
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
WHT
WHT
RED
C813
C614
CN802
CN803
AC IN
BC301
D301
D301
(POWER)
C804
J21
J24
R620
Q604
Q603
Q602
E MODEL
E MODEL
R614
R616
C612
R602
R613
R603
C518
VR501
SP1
SPEAKER
4Ω
LEVEL
S801
POWER
J501
LINE
IN
CN501
WHT
BLK
WHT
RED
J26
J25
RED
BLK
R618
R804
R802
BC601
R615
RED
BLU
BRN
RED
WHT
1-862-214-
11
1-862-217-
11
1-862-216-
11
1-862-218-
11
1-862-215-
11
C803
C810
S801
BC802
C808
C806
Q801
Q802
R803
R801
Q605
D803
D802
C805
C807
C602
C607
C801
J16
CN301
J15
D801
R605
J23
J22
Q601
C613
R610
C611
J10
J8
J7
C802
J11
J19
RLY601
J12
CN601
C608
J13
BLU
BRN
TH601
R601
R511
R510
J6
J5
IC502
IC501
C512
R509
R506
R508
R512
R504
R507
R501
J501
R503
C601
Q606
C603
R604
IC601
J20
C501
C508
C507
C502
R502
C504
R505
C506
J4
J2
C511
C503
C517
C505
J1
C509
C510
C516
C513
C514
J3
C606
J17
J14
C610
J8
J7
R619
R301
R608
R609
D602
D601
C604
C605
C809
C815
R607
BC801
D603
C814
RED
1
2
2
10
14
1
15
1
2
1
1
2
1
2
1
3
5
1
2
1
3
WHT
RED
WHT
WHT
F801
CN801
T801
3
1
LED BOARD
TRANSFORMER BOARD
POWER BOARD
CONTROL BOARD
POWER SWITCH BOARD
8
5
1
4
1
4
8
4
1
5
2-3. PRINTED WIRING BOARDS (SA-WMS155)  • Refer to page 3 for Circuit Boards Location.    
 : Uses unleaded solder.
D301
B-2
D601
I-9
D602
I-9
D603
J-8
D801
I-7
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
D802
D-9
D803
D-8
IC501
H-12
IC502
G-12
IC601
F-6
Q601
G-9
Q602
D-8
Q603
D-8
Ref. No.
Location
Q604
D-7
Q605
E-8
Q606
E-8
Q801
E-9
Q802
E-8
Page of 9
Display

Download Sony SA-VE155 / SA-WMS155 / SS-MS155 Service Manual (Repair Manual)

Here you can read online and download Sony SA-VE155 / SA-WMS155 / SS-MS155 Service Manual in PDF. SA-VE155 / SA-WMS155 / SS-MS155 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony SA-VE155 / SA-WMS155 / SS-MS155 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.