Sony SAWMS-835 Service manual
SA-VE835ED/WMS835/
SS-MS835
SERVICE MANUAL
Ver 1.1 2002. 08
The SA-VE835ED system consists of one
unit of SA-WMS835 and five units of SSMS835.
SA-VE835ED
For the U.S. model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 3.75 ohm loads both channels driven,
from 20 – 200 Hz; rated 200 watts per
channel minimum RMS power, with no more
than 0.8% total harmonic distortion from
250 milliwatts to rated output.
SS-MS835 (front, center , and rear speakers)
Speaker system 2 way, magnetically
shielded
Speaker units Tweeter: 1.9 cm (3/4 in.),
dome type
Woofer: 5.7 cm
(2 1/4 in.) × 2, cone type
Enclosure type Bass reflex
Rated impedance 8 ohms
Power handling capacity
Maximum input power: 140 W
Sensitivity level 87 dB (1 W, 1 m)
Frequency range 120 Hz – 70,000 Hz
Dimensions (w/h/d)
When attached speaker grilles:
Approx. 90 × 182 × 147
mm (3 5/8 × 7 1/4 × 5 7/8
in.) each
When attached to supplied speaker stand:
Approx. 97 × 220 × 158
mm (3 7/8 × 8 3/4 × 6 1/4
in.) each, (Front (and rear)
speakers)
Approx.182 × 145 × 163
mm (7 1/4 × 5 3/4 × 6 1/2
in.), (Center speaker:
pointed upwards)
Approx.182 × 123 × 163
mm (7 1/4 × 4 7/8 × 6 1/2
in.), (Center speaker:
pointed downwards)
SA-WMS835 SS-MS835 SS-MS835
(front and rear) (center)
SPECIFICATIONS
Mass
When attached speaker grilles:
Approx. 1.3 kg
(2 lb 14 oz) each
When attached to supplied speaker stand:
Approx. 1.4 kg (3 lb 1 oz)
each, (Front (and rear)
speakers)
Approx. 1.4 kg (3 lb 1 oz),
(Center speaker)
SA-WMS835 (subwoofer)
Speaker system Active subwoofer,
magnetically shielded
Speaker unit Woofer: 20 cm (8 in.),
cone type
Enclosure type Advanced SAW type
Reproduction frequency range
24 Hz – 200 Hz
Continuous RMS power output
200 W (3.75 ohms, 20 –
200 Hz, 0.8% THD)
Inputs
LINE IN (input pin jack)
US Model
Canadian Model
AEP Model
UK Model
E Model
General
Power requirements 120 V AC, 60 Hz
(US, CND, MX model)
220 – 240 V AC, 50/60 Hz
(AEP, UK, SP, AR, KR
model)
Power consumptions 50 W
1 W (standby mode)
Dimensions (w/h/d) Approx. 230 × 395 × 485
mm (9 1/8 × 15 5/8 ×
19 1/8 in.),
including front grille
Mass Approx. 15.5 kg
(34 lb 3 oz)
Supplied accessories
Speaker stands (for the front and rear speakers) (4)
Speaker stand (for the center speaker) (1)
Screws (for the speaker stands) (5)
Washers (for the speaker stands) (5)
L-shaped Allen (Hex) Head wrench (1)
Speaker connecting cords, 10 m (32 ft 9 3/4 in.) (2)
Speaker connecting cords, 3.5 m (11 ft 6 in.) (3)
Audio connecting cord (1)
Design and specifications are subject to change
without notice.
•Abbreviation
CND : Canadian model
SP : Singapore model
MX : Mexican model
AR : Argentine model
KR : Korean model
9-873-688-02
2002H0400-1
© 2002. 08
MICRO SATELLITE SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
1
SA-VE835ED/WMS835/SS-MS835
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
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 A C 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 microamperes).
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 V OM
or battery-operated A C v oltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate lo w-v oltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Circuit Boards Location (SA-WMS835) ............................ 3
1-2. Printed Wiring Boards (SA-WMS835)
–Audio Section–.................................................................. 4
1-3. Printed Wiring Boards (SA-WMS835)
–Main Power Section– ........................................................ 5
1-4. Schematic Diagram (SA-WMS835) ................................... 6
2. EXPLODED VIEWS
2-1. Front Panel Section (SA-WMS835)....................................7
2-2. Rear Panel Section (SA-WMS835)..................................... 8
2-3. Speaker Section (SS-MS835).............................................. 9
3. ELECTRICAL PARTS LIST ........................................ 10
To Exposed Metal
Parts on Set
0.15µF
1.5k
Ω
Earth Ground
AC
voltmeter
(0.75V)
Fig. A. Using an AC voltmeter to check AC leakage.
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 P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
LES COMPOSANTS IDENTIFIÉS P AR 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.
À LA SÉCURITÉ!!
2
SECTION 1
d
DIAGRAMS
SA-VE835ED/WMS835/SS-MS835
Ver 1.1
1-1. CIRCUIT BOARDS LOCATION (SA-WMS835)
INPUT board
INPUT SELECT board
LED board
POWER SWITCH board
IC1
(power amplifier unit)
MAIN POWER boar
AUTO POWER 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 diagram:
• 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 Ω and 1/
specified.
• 2 : nonflammable resistor.
• C : panel designation.
Note:
The components identified by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
• A : B+ Line.
• B : B– Line.
•Voltage is dc with respect to ground under no-signal
(detuned) condition.
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Signal path.
F : AUDIO
• Abbreviation
CND : Canadian model.
SP : Singapore model.
4
W or less unless otherwise
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
CONTROL board
for printed wiring boards:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
SP : Singapore model.
MX : Mexican model.
AR : Argentine model.
KR : korean model.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
Q
BCE
Q
B
C
These are omitted.
E
33
SA-VE835ED/WMS835/SS-MS835
1-2. PRINTED WIRING BOARDS (SA-WMS835) — AUDIO SECTION — • Refer to page 3 for Circuit Boards Location.
A
B
C
D
E
F
G
H
I
1
J101
LINE
IN
(CHASSIS)
234567891011 12 13 14
INPUT BOARD CONTROL BOARD
C604
JW2
Q605
R604
C602
R101
R105
JW3
JW4
C606 C605
R605
JW1
Q604
C601
C603
JW10
1
C103
C102
C105
R108
JW12
CN103
R102
R104
Q603
C104
R103
IC101
14
JW24
C106
JW14
R602
R603
Q602
Q601
JW11
JW9
6
D101
D102
85
R109
JW13
R601
R606
4
R107
R106
CN104
1
C107
JW23
6
JW22
CN101
1
R110
C108
R111
16
CN102
1-684-602-
(12)
12
1
MAIN
POWER
BOARD
CN906
(Page 5)
C312
C313
C318
CN301
INPUT SELECT BOARD
16
SW502 SW501
PHASE
REVERSE NORMAL
CN501
R326
R327
5
1
VR301
LEVEL
C311
IC303
14
R325
JW8
C315
JW7
C314
JW19
POWER SAVE
AUTO OFF
R315
R317
R316
85
C309
C317
C316
R301
4
1
JW20
R313
R318
IC302
JW26
1-684-637-
MOVIE MUSIC
R311
R314
C310
R312
C306
85
C305
JW21
C308
JW18
JW16
JW17
IC301
85
14
JW25
1-684-601-
(11)
SW301
MODE
R309
R310
C303
11
C307
R308
R307
C304
11
(12)
3
MAIN
POWER
BOARD
CN909
(Page 5)
AUTO POWER BOARD (SIDE A)
AUTO POWER BOARD
(SIDE B)
CN204
13
D211
Q205
Q206
R208
81
C207
D207
R204
R203
CN203
1
Q203
6
C205
R212
D208
R206
C206
R210
R209
IC201
C208
Q202
Q201
Q207
R207
D206
D205
R213
R211
Q204
C204
C203
• Semiconductor Location
Ref. No. Location
D101 B-3
D102 B-3
D201 H-9
D202 H-9
D203 H-9
D204 H-9
D205 H-8
D206 H-8
D207 G-7
D208 G-8
D209 G-9
D210 G-9
R205
R202
R201
R214
D210
RY801
CN202
12
D209
C202
C201
MAIN POWER BOARD
CN901
(Page 5)
2
C3
D807
T201
D203
D204
D202
D201
Ref. No. Location Ref. No. Location
D211 G-8
D402 E-13
D807 G-9
IC101 B-3
IC201 G-8
IC301 E-6
IC302 C-6
IC303 C-5
Q201 H-8
CN211
1
BLU
CN212
CN210
Q202 H-8
Q203 G-8
Q204 G-8
Q205 F-8
Q206 F-8
Q207 G-8
Q601 D-3
Q602 D-2
Q603 D-2
Q604 D-2
Q605 D-2
1-684-636-
2
BRN
12
1-684-636-
11
(11)
11
(11)
LED BOARD
3
1
CN401
R402
D402
ON/STANDBY
POWER SWITCH BOARD
POWER
CN801
21
BLU
~
AC IN
BRN
S801
C1
1-684-604-
1-684-603-
11
(12)
11
(12)
44
1-3. PRINTED WIRING BOARDS (SA-WMS835) — MAIN POWER SECTION — • Refer to page 3 for Circuit Boards Location.
SA-VE835ED/WMS835/SS-MS835
Ver 1.1
A
B
C
D
E
F
G
H
1
234567891011 12 13
MAIN POWER BOARD (SIDE A
C935
INPUT BOARD
CN104
14
CN906
C936
C938
C937
C918
(CHASSIS)
T901
R906
D902
FH902
SP1
MAIN
SPEAKER
POWER
)
(SIDE B)
R701
2
1
CN909
BOARD
D921
R709
Q705
RY701
R703
BLK
RED
CN903
C702
D920
D919
R704
Q703
Q701
1
CN904
L903
1
R917
R702
IC1
POWER AMPLIFIER
UNIT
(ICE250A)
FC1 FC1
8
18
L905
EP902
C940
31
IC906
C932
L904
(CHASSIS)
C934
322
IC907
C933
R918
CN907
3
AUTO
POWER
BOARD
CN202
(Page 4)
US,CND,MX
MODEL
R707
D701
R706
R904
Q704
C703
R705
C915
IC901
D901
~~
C906
R708
C922
AEP,UK,SP,AR,KR MODEL
D922
135
24
JW901
1
JW902
FB901
THP901
C701
2
R914
R912
R910
3
R915
IC902
C914
R911
R903
R916
1
4
C912
C919
2
3
D907
D903
C942
PC901
D908
R913
R909
D904
D911
D910
C941
C913
Q901
C920
C916
D905
R908
D906
R907
C910
(Page 4)
1
C939
CN912
F901
EP903
C917
D909
KA
FH904
EP904
FH903
R905
C911
CN901
C2
FH901
(CHASSIS)
F902
AUTO
POWER
2
BOARD
CN211
(Page 4)
• Semiconductor
Location
Ref. No. Location
D701 D-7
D901 H-8
D902 G-11
D903 G-9
D904 G-9
D905 F-10
D906 G-10
D907 F-9
D908 F-9
D909 C-12
D910 E-10
D911 E-10
D919 C-8
D920 C-8
D921 C-7
D922 F-8
IC901 F-8
IC902 E-8
IC906 C-9
IC907 C-10
PC901 F-9
Q701 D-8
Q703 D-8
Q704 D-8
Q705 D-7
Q901 G-9
I
C907
J
11
1-684-635-
(11)
C905
US,CND,MX
MODEL
C908
L902
C902
C903
C904
L901
AEP,UK,SP,AR,KR MODEL
R902
C901
US,CND,MX MODEL
R901
EP901
(CHASSIS)
1-684-635-
11
(11)
55
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