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SA-VE812ED/VE815ED/
WMS815/SS-MS815
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
MICRO SATELLITE SYSTEM
SPECIFICATIONS
The SA-VE812ED system consists of one unit
of SA-WMS815 and two units of SS-MS815.
The SA-VE815ED system consists of one unit
of SA-WMS815 and five units of SS-MS815.
For the U.S. model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION :
with 8
loads both channels driven, from 20 - 150Hz; rated
150 W per channel minimum RMS power, with no more
than 0.8% total harmonic distortion from 250 mW to rated
output.
SS-MS815 (front, center, and rear speakers)
Speaker system
2 way, magnetically shielded
Speaker units
Tweeter :
1.9 cm (3
/4 in.), dome type
Woofer :
5 cm (
2 in.)
× 2, balanced drive
type
Enclosure type
Bass reflex
Rated impedance
8
Power handling capacity
Maximum input power: 140 W
Sensitivity level
87 dB (1W, 1m)
Frequency range
120 Hz - 70,000 Hz
Dimensions (w/h/d)
When attached speaker grilles:
Approx. 86
× 169 × 130 mm
(31/2
× 63/4 × 51/8 in.) each
When attached to supplied speaker stand:
Approx. 96
× 207 × 141 mm
(37/8
× 81/4 × 55/8 in.) each,
(Front (and rear)speakers)
Approx. 169
× 131 × 144 mm
(63/4
× 51/4 × 53/4 in.),
(Center speaker: pointed upwards)
Approx. 169
× 118 × 141 mm
(63/4
× 43/4 × 55/8 in.),
(Center speaker: pointed
downwards):
Mass
When attached speaker grilles:
Approx. 1.3 kg (2lb 14oz) each
When attached to supplied speaker stand:
Approx. 1.4 kg (3lb 1oz) each,
(Front (and rear) speakers)
Approx. 1.4 kg (3lb 1oz), (Center
speaker)
SA-WMS815 (subwoofer)
System
Speaker system
Active subwoofer, magnetically
shielded
Speaker unit
Woofer : 20 cm (8 in.),
cone type
Enclosure type
Advanded SAW type
Continuous RMS power output
150 W (8
, 20 - 150 Hz, 0.8 %
THD)
Reproduction frequency range
24 Hz - 150 Hz
Inputs
LINE IN (input pin jack)
SPEAKER IN (input terminals)
Outputs
LINE OUT (output pin jack)
SPEAKER OUT (output terminals)
General
Power requirements
European models :
220 - 230 V AC, 50/60 Hz
Other models :
120 V AC, 60 Hz
Power consumptions
130 W
Dimensions (w/h/d)
Approx. 230
× 395 × 495 mm
(91/8
× 155/8 × 191/2 in.), including
front grille
Mass
Approx. 17.5 kg
(37 lb 9 oz)
Photo : SA-WMS815
Photo : SS-MS815
Supplied accessories
SA-VE815ED
Speaker stands (for the front and rear speakers) (4)
Speaker stand (for the center speaker) (1)
Screws (for the speaker stands) (10)
Washers (for the speaker stands) (10)
Plates (for the front and rear speaker stands) (4)
Speaker grilles (5)
Audio connecting cord (1)
Speaker connecting cords, 2.5 m (8 ft
21/2 in.) (5)
Speaker connecting cords, 10 m (32 ft
93/4 in.) (2)
SA-VE812ED
Speaker stands (for the front speakers) (2)
Screws (for the speaker stands) (4)
Washers (for the speaker stands) (4)
Plates (for the front speaker stands) (2)
Speaker grilles (2)
Audio connecting cord (1)
Speaker connecting cords, 2.5 m (8 ft
21/2 in.) (4)
Design and specifications are subject to change
without notice


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2
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED LINE WITH
MARK
! 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.
After correcting the original service problem, perform the
following safety checks 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
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
VOM or battery-operated AC voltmeter. The "limit" indication
is 0.75 V, so analog meters must have an accurate low-voltage
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)
SAFETY CHECK-OUT
To Exposed Metal
Parts on Set
0.15
µF
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE
! SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.


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SA-VE812ED/VE815ED/WMS815/SS-MS815
3
3
SECTION 1
GENERAL
· Location of Controls
SA-WMS7
­ Front view ­
­ Rear view ­
SECTION 2
DIAGRAMS
2-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
· X : parts extracted from the component side.
· b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
· Indication of transistor.
B
These are omitted.
CE
Q
Note on 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
and 1/4 W or less unless otherwise
specified.
· 2 : nonflammable resistor.
· C : panel designation.
· U : B+ Line.
· V : B­ Line.
· Voltages are dc with respect to ground under no-signal
conditions.
no mark : AUDIO
· 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
G
: German model
MY
: Malaysia model
SP
: Singapore model
Note:
The components identi-
fied by mark
! or dotted
line with mark
! are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
· Circuit Boards Location
SA-WMS815
LINE IN/OUT jack
SPEAKER IN/OUT
terminal
POWER SAVE
switch
POWER SWITCH board
POWER board
LED board
CONTROL board
AUTO POWER board
MAIN board


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SA-VE812ED/VE815ED/WMS815/SS-MS815
4
4
2-2.
SCHEMATIC DIAGRAM
· See page 7 for IC Block Diagrams.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.


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SA-VE812ED/VE815ED/WMS815/SS-MS815
5
5
2-3.
PRINTED WIRING BOARD
MAIN SECTION · See page 3 for Circuit Boards Location.
Ref. No.
Location
D101
C-10
D102
D-10
D103
C-10
D104
C-10
D105
D-10
D106
D-10
D107
E-10
D108
D-10
D303
B-8
D304
C-6
D501
E-5
D503
C-5
D504
B-4
D505
B-4
D506
B-4
D601
H-9
D602
I-9
D603
J-9
D604
J-9
D605
I-9
D606
I-8
D702
A-8
D801
G-6
IC101
C-10
IC102
D-11
IC301
B-10
IC302
D-9
IC303
B-7
IC501
B-5
IC502
B-5
IC601
I-9
IC602
I-8
IC701
A-6
Q401
H-3
Q402
H-4
Q403
H-4
Q404
G-4
Q601
H-9
Q602
J-8
Q603
H-8
Q604
H-8
Q605
H-8
Q701
A-7
Q702
A-8
· Semiconductor
Location
12
A
B
C
D
E
F
G
H
I
J
3456789
10
11