1
SERVICE MANUAL
US Model
Canadian Model
SA-WMS367
SUBWOOFER
Ver 1.0 2004.03
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-698-01
2004C04-1
© 2004.03
For the US model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
with 6 ohm loads, from 20 - 200 Hz; rated 120 watts per
channel minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to rated
output.
Speaker system
Active subwoofer,
magnetically shielded
Speaker unit
Woofer: 20 cm (8 in.)
Enclosure type
Acoustically loaded
Bass Reflex
Reproduction frequency range
26 Hz - 200 Hz
Continuous RMS power output
135 W (6 ohms, 100 Hz,
10% THD)
SPECIFICATIONS
Inputs
INPUT (input pin jack)
SPEAKER IN (input terminals)
Outputs
SPEAKER OUT (output terminals)
General
Power requirements
120 V AC, 60 Hz
Power consumptions
130 W
1 W (standby mode)
Dimensions (w/h/d)
Approx. 290
× 400 × 424 mm
(11 1/8
× 15 1/4 × 16 3/8 in.)
Mass
Approx. 13 kg
(28 lb 11 oz)
Design and specifications are subject to change without
notice.
· SA-WMS367 is the subwoofer
section in SA-VE367T.
2
1.5 k
0.15 µF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The "limit" indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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 Main Section ............................ 4
2-4. Schematic Diagram Main Section ................................. 5
2-5. Printed Wiring Boards Control Section ......................... 6
2-6. Schematic Diagram Control Section ............................. 7
2-7. IC Block Diagram ............................................................... 8
3. EXPLODED VIEWS
3-1. Front Section ....................................................................... 9
3-2. Rear Section ...................................................................... 10
4. ELECTRICAL PARTS LIST ......................................... 11
SA-WMS367
· 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.
(Fig. A)
33
SA-WMS367
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.
eE Ee
Ee
Ee
Ee
Ee
Ee
Ee
WOOFER OUT
SURROUND BACK
FRONT
SURROUND
R
R
L
L
Ee
Ee
eE Ee
L
CENTER
A
Front (Right)
Center
Subwoofer
Front (Left)
Surround (Right)
Surround (Left)
Amplifier
3.5 m
(11.5 ft.)
10 m
(32.8 ft.)
10 m
(32.8 ft.)
3.5 m
(11.5 ft.)
3.5 m
(11.5 ft.)
E
e
E
e
C
E
e
E
e
B
R
L
R
L
Ee
Ee
SPEAKER
IN
SPEAKER
OUT
e
e
E
E
eE Ee
Ee
FRONT
CENTER
R
R
L
L
eE Ee
RL
Ee
Ee
Ee
Ee
Ee
SURROUND
SURROUND BACK
Front (Left)
Center
Front (Right)
Subwoofer
Amplifier
Surround (Left)
Surround (Right)
10m
(32.8 ft.)
10m
(32.8 ft.)
2.5m (8.2 ft.)
2.5m (8.2 ft.)
D
AA
A
30
30
100 ~ 120
100 ~ 120
Front (Right)
Center
Subwoofer
Surround (Right)
Front (Left)
Surround (Left)
Foot pads
E
H
G
F
J
Foot pads
WS-FV11
I
3.5 m
(11.5 ft.)
3.5 m
(11.5 ft.)
3.5 m
(11.5 ft.)
WS-WV10D
(for surround
speakers)
Surround back
(Right)
Surround back
(Left)
Surround back
(Right)
Surround back
(Left)
Surround back
(Left)
Surround back
(Right)
POWER SAVE
AUTO
OFF
K
POWER
POWER
indicator
POWER
INPUT
VOLUME
BASS BOOST
MAX
MIN
MAX
PHASE
REVERSE
NORMAL
AUTO
POWER SAVE
OFF
MIN
++
VOLUME
BASS BOOST
PHASE
INPUT
INPUT
Hooking up the system
Connect the speaker system to the speaker output
terminals of an amplifier.
Make sure power to all components (included the
subwoofer) is turned off before starting the hook-up.
HookupA
Usually, connect by this method.
This configuration is used when the amplifier is
connected to a DVD player, LD player, VCR or other
video devices.
HookupB
Try this configuration instead of "Hookup A" when
there are no jacks on the amplifier for a subwoofer.
An optional specified speaker cord (2.5 m
× 2)(8.2 ft.× 2)
is necessary when connecting this way.
Notes (C)
· Make sure the plus (+) and the minus () terminals on
the speakers are matched to the corresponding plus (+)
and minus () terminals on the amplifier.
· 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 firm. Contact between
bare speaker wires at the speaker terminals may cause
a short-circuit.
· For details regarding the connections on the amplifier
side, refer to the manual that was provided with your
amplifier.
Tip
Black or black striped wires are minus () in polarity, and
should be connected to the minus () speaker terminals.
About this manual
The SA-VE367T is a 7.1 channel speaker system
consisting of two front speakers, two surround speakers,
two surround back speakers, one center speaker, 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 qualified personnel before operating it any
further.
· AC power cord must be changed only at the qualified
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 amplifier 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
amplifier.
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.) floor, 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.
Adjusting the subwoofer ( K)
1 Rotate VOLUME to adjust the volume.
Set the volume level to best suit your
preference according to the program
source.
2 Select the phase polarity.
Use the PHASE selector to select the phase
polarity.
3 Set BASS-BOOST to MIN.
Rotate BASS-BOOST according to the
output level that you prefer. Some
material is recorded with strong emphasis
on bass sounds, which may be accessive in
some cases. If this happens, rotate BASS-
BOOST towards minimum.
Notes
· Some amplifier 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.
·If the sound distorts when you turn on the bass
reinforcement from your amplifier (such as DBFB,
GROOVE, the graphic equalizer, etc.), turn down the
bass reinforcement and adjust the level.
· Do not turn the LEVEL knob to maximum. Doing so
may weaken the bass sound. Moreover, extraneous
noise may be heard.
· Selecting NORMAL or REVERSE with the PHASE
selector reverses the polarity and may provide better
bass reproduction in certain listening environments
(depending on the type of front speakers, the position
of the subwoofer and the adjustment of the BASS-
BOOST. It may also change the expansion and
tightness of sound, and effect the feeling of the sound
field. Select the setting that provides the sound you
prefer when listening in your normal listening position.
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 amplifier has
been turned up properly.
·Make sure the program source selector on the
amplifier 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 amplifier. 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.
Positioning the speakers
Location of each speaker (D)
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 configuration of the room. The surround speakers
may be placed slightly behind the listening position.
Place the surround back speakers behind the listening
position. The angle A should be the same.
Setting the speakers
To prevent speaker vibration or movement while
listening, attach the supplied foot pads to the bottom
four corners of the center speaker, front speakers,
surround speakers and surround back speakers (E).
Setting the center speaker (F)
Set the center speaker firmly on top of the TV set, making
sure it is completely level.
Setting other speakers (G)
For greater flexibility in the positioning of the speakers,
use the optional WS-FV11 or WS-WV10D speaker stand
(available only in certain countries).
Tip
The height of the front speakers should be adjusted to
about the center of the TV screen (H).
Setting the amplifier
When connecting to an amplifier with internal multi
channel decoders (Dolby Digital, DTS**, etc.), you should
use the setup menus for the amplifier 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 amplifier.
When "Hookup A" is used
(Speaker setup)
For
Set to
Front speakers
SMALL
Center speaker
SMALL
Surround speakers
SMALL
Subwoofer
ON (or YES)
When "Hookup B" is used
(Speaker setup)
For
Set to
Front speakers
LARGE
Center speaker
SMALL
Surround speakers
SMALL
Subwoofer
OFF (or NO)
If you use the amplifier with adjustable crossover
frequency, it is recommended to select 150 Hz (or close to
this figure) as the crossover frequency for your front,
center, and surround speakers.
** "DTS" and "DTS Digital Surround" are registered
trademarks of Digital Theater Systems, Inc.
Listening to the sound (I)
First, turn down the volume on the amplifier. The
volume should be set to minimum before you begin
playing the program source.
1 Turn on the amplifier 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.
Power turns on and off automatically -- Auto
power on/off function
(J)
When the subwoofer is on (i.e, the POWER indicator
lights up green) and there is no signal input for a few
minutes, the POWER indicator changes to red and the
subwoofer enters power saving mode. While in this
mode a signal is input to the subwoofer, the subwoofer
automatically turns on (auto power on/off function).
To turn this feature off, slide the POWER SAVE switch
on the rear panel to OFF.
Note
If you turn down the volume level of the amplifier too
low, the auto power on/off function may activate,
causing the subwoofer to enter power saving mode.
MAIN board
TERMINAL board
CONTROL board
POWER SUPPLY board
POWER AMP board
POWER SWITCH board
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. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
· All resistors are in 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.
·Abbreviation
CND : Canadian model.
· 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 M).
Voltage variations may be noted due to normal produc-
tion tolerances.
· Signal path.
F
: AUDIO
·Abbreviation
CND : Canadian model.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
4
4
SA-WMS367
2-3. PRINTED WIRING BOARDS -- MAIN SECTION -- · Refer to page 3 for Circuit Boards Location.
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
23456789
10
11
12
13
14
C713
Q702
R706
C701
R702
R703
R701
CN701
C707
R708
R714
C710
D701
D702
D703
Q701
R711
R709
R710
R707
C705
R705
R712
R713
R704
C712
JW703
JW704
JW
707
C702
C704
IC701
R715
R716
R717
C703
C708
C709
C706
JW705
JW
708
JW
702
JW
701
CN702
C711
JW
709
C716
JW711
BC801
D805
C801
C802
C803
C804
BC802
R303
R304
C301
C302
C305
C306
C307
C308
D301
D302
D303
D304
D305
D306
R101
R102
R
103
R104
R105
R106
C101
C102
Q104
Q105
R531
R532
R534
R535
R536
R537
R538
R539
R540
R542
C531
D532
D533
R404
R405
R400
D400
D401
C401
C403
Q401
Q402
Q403
RY400
BC401
SP401
CN804
CN805
IC530
BC803
Q532
R533
D531
R401
R406
G1
G2
JW
801
JW802
JW807
JW
809
JW
810
JW
811
JW813
JW814
JW816
JW
817
JW818
JW
819
JW
820
JW
821
JW822
JW823
JW
824
JW825
JW826
JW
828
JW
829
JW830
JW832
JW833
C303
C304
JW808
C532
Q404
Q533
Q534
Q535
JW
834
JW835
JW812
Q102
Q101
Q103
JW837
C402
JW827
R402
R403
Q301
Q302
Q531
C806
JW
805
JW
804
C805
R800
JW301
JW302
R541
BC903
T102
CN1
F901
T202
C901
D901
RY901
BC901
BC902
F11
F12
JW
053
JW
052
JW051
C902
CN904
C201
D203
BC203
S201
BC202
(Page 6)
(Page 6)
D203
I-3
D301
H-8
D302
H-8
D303
H-8
D304
I-8
D305
H-9
D306
H-9
D400
F-12
D401
E-8
D531
H-12
D532
G-13
D533
I-12
D701
B-9
D702
B-9
D703
B-8
D805
F-8
D901
E-4
IC530
H-13
IC701
C-10
Q101
H-11
Q102
H-11
Q103
H-11
Q104
I-12
Q105
H-11
Q301
H-9
Q302
H-9
Q401
F-11
Q402
E-11
Q403
F-12
Q404
E-12
Q531
G-13
Q532
I-12
Q533
H-13
Q534
I-12
Q535
I-11
Q701
C-8
Q702
C-12
· Semiconductor
Location
Ref. No.
Location
55
SA-WMS367
2-4. SCHEMATIC DIAGRAM -- MAIN SECTION -- · Refer to page 8 for IC Block Diagram.
IC B/D
C902
C901
C803
C804
D
400
D401
Q403
D302
D304
D301
D303
BC902
S201
BC202
C531
R531
D531
R533
R532
D532
R536
R535
R538
R539
C532
R534
Q534
Q535
D533
D901
R400
R401
R402
R403
R404
R405
C401
C402
C403
R406
R537
C201
R303
R304
R101
Q101
C712
C710
C704
D703
D702
D701
C713
R713
C703
R702
R703
C707
C708
R707
C705
R708
C706
R704
R709
R710
R711
C711
R715
R716
R717
C301
C302
C303
C304
C305
C306
C307
C308
R102
R103
R104
R105
R106
C101
C102
Q102
R540
R541
R542
C801
C802
C805
C806
Q103
R705
R800
R714
C701
C702
R712
CN701
CN805
CN702
D305
D306
BC401
BC801
CN905
Q702
Q701
Q531
Q532
Q533
D805
Q105
Q402
Q401
SP401
RY400
RY901
T202
T102
CN1
IC701
R701
C716
R706
Q301
Q302
Q104
Q404
BC901
CN804
BC802
CN904
F901
CN102
BC903
BC803
BC203
D203
C709
IC530(2/2)
IC530(1/2)
(Page 7)
(Page 7)