SA-SC8/WS8/SS-CT8/TS8
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
SUBWOOFER/SPEAKER SYSYTEM
Sony Corporation
Audio Group
Published by Sony Engineering Corporation
9-961-138-04
2004L16-1
© 2004.12
· SA-SC8 is composed of following models.
SPECIFICATIONS
Ver. 1.3 2004. 12
SA-SC8
FRONT and SURROUND speakers
SS-TS8
CENTER speaker
SS-CT8
SUBWOOFER
SA-WS8
SA-WS8
· SA-SC8 is the speaker section in
DAV-FC9/SC8.
Front/Surround
Speaker system
Bass reflex
Speaker unit
70 mm dia. cone type
× 2,
25 mm dia. balance dome
Rated impedance
4 ohms
Dimensions (approx.)
250
× 1196 × 250 mm
(w/h/d, Max size with the
stand)
250
× 646 × 250 mm
(w/h/d, Min size with the
stand)
Mass (approx.)
3.62 kg
Centre
Speaker system
Bass reflex
Speaker unit
70 mm dia. cone type
× 2,
25 mm dia. balance dome
Rated impedance
4 ohms
Dimensions (approx.)
379
× 125 × 85 mm
(w/h/d, with the stand)
Mass (approx.)
1.07 kg
Subwoofer
Speaker system
Active subwoofer,
Magnetically shielded
Speaker unit
20 cm dia. cone type
Enclosure type
Advanced SAW type
Amplifier section
Continuous RMS power output
135 W (8 ohms,
20 Hz -20 kHz, 10% THD)
Power requirements
Australian and Asian models:
220 240 V AC, 50/60 Hz
Taiwan model:
120 V AC, 50/60 Hz
Other models:
110 120 V/220 240 V
AC, 50/60 Hz
Power consumption
90 W, 1 W (standby mode)
Dimensions (approx.)
230 390 475
mm
(w/h/d) incl. front grille
Mass (approx.)
14.5 kg
Design and specifications are subject to change
without notice.
EXCEPT US and Canadian models:
120 V AC, 60 Hz
US and Canadian models:
150 W (6 ohms,
US and Canadian models:
20 Hz 20kHz, 10% THD)
SS-CT8
SS-TS8
SA-SC8/WS8/SS-CT8/TS8
2
TABLE OF CONTENTS
1. DIAGRAMS
1-1. CIRCUIT BOARDS LOCATION (SA-WS8) .............. 3
1-2. PRINTED WIRING BOARDS (SA-WS8) ................... 5
1-3. SCHEMATIC DIAGRAM (SA-WS8) .......................... 6
2. EXPLODED VIEWS
2-1. SS-CT8 (OVER ALL SECTION) ··································· 7
2-2. SS-TS8 (OVERALL SECTION) ···································· 8
2-3. SS-TS8 (STAND SECTION) ········································· 9
2-4. SA-WS8 (OVERALL SECTION) ································ 10
2-5. SA-WS8 (AMP SECTION) ·········································· 11
3. ELECTRICAL PARTS LIST ········································· 12
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.
To Exposed Metal
Parts on Set
0.15
µF
1.5k
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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 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 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)
3
SA-SC8/WS8/SS-CT8/TS8
1-1. CIRCUIT BOARDS LOCATION (SA-WS8)
SECTION 1
DIAGRAMS
AUTO POWER board
MAIN board
POWER board
LED board
POWER SWITCH board
CONTROL board
SA-SC8/WS8/SS-CT8/TS8
4
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.
· 5 : fusible resistor.
· C : panel designation.
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.
· 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 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
· Signal path.
F
: AUDIO
·Abbreviation
CND : Canadian model.
Note on Printed Wiring Boards:
· X : parts extracted from the component side.
·
: Pattern from the side which enables seeing.
Ref. No.
Location
D201
I-4
D202
H-4
D303
E-3
D304
E-3
D305
F-6
D306
D-8
D501
C-8
D502
E-8
D503
E-8
D504
E-8
D505
E-8
D506
F-7
D507
E-7
D601
I-7
D602
I-7
D603
J-7
D604
I-7
D605
H-7
D606
G-7
(D607)
J-9
<D608>
G-8
D701
B-5
D702
C-5
D703
C-5
D704
C-5
D801
E-10
IC101
C-3
IC102
C-2
IC104
C-5
IC201
H-3
IC202
H-1
IC203
H-3
IC204
H-4
IC301
E-2
IC701
B-6
Q101
C-1
Q301
E-3
Q302
E-2
Q303
E-2
Q304
D-2
Q305
D-3
Q306
D-3
Q307
D-3
Q308
E-7
Q309
F-6
Q310
E-6
Q311
E-6
Q401
J-3
Q402
J-3
Q403
J-2
Q404
J-5
Q501
F-7
Q502
E-7
Q601
H-7
Q
602
G-7
Q701
B-5
Q702
C-6
Q703
A-7
Q704
A-7
Q705
A-7
· Semiconductor
Location
() : Except E model
<> : E model
5
5
SA-SC8/WS8/SS-CT8/TS8
1
A
B
C
D
E
F
G
H
I
J
23456789
10
11
12
13
14
JW61
R201
CN201
C201
R202
JW64
R221
IC201
IC301
IC102
IC101
IC104
IC701
S701
IC203
IC204
JW59
C213
JW57
C211
C212
R215
R217
R214
D201
R210
JW60
C209
R209
R211
R220
R219
C214
C210
D202
R218
R216
R407
Q404
C401
JW56
R406
R404
CN401
Q401
Q403
Q402
JW55
R405
R402
R401
R403
JW58
R212
R213
C208
RV201
1
5
R205
S201
S201
MODE
LEVEL
MUSIC
MOVIE
C204
R208
IC202
C207
R203
C203
R206
C206
C314
R302
C301
R301
R331
R332
R304
R328
R327
C313
R326
R325
C312
JW48
JW32
Q306
Q301
D304
D303
R311
Q302
C308
Q303
JW29
JW30
JW46
C303
R305
R307
R329
R313
C311
RY301
RY602
T601
POWER TRANSFORMER
RY601
D608
R602
C602
JW604
JW601
JW602
C5
F601
F602
C2
C1
D605
D601
D602
JW606
R335
C315
JW50
Q310
Q309
Q311
JW39
JW27
JW26
JW38
R704
R707
R706
Q703
Q704
Q705
R710
D501
R708
JW37
JW25
Q702
JW36
CN502
R141
C118
JW24
JW23
JW22
Q307
R310
R314
Q305
Q304
Q101
R309
R119
C108
J101
IN
POWER
SAVE
S701
LINE
C105
R115
R117
C106
R113
R123
R122
R126
C111
R125
CN101
C110
R124
JW20
R120
C109
R121
JW1
R114
C104
R308
C511
C512
C304
C305
JW21
R118
C107
R116
JW6
JW7
JW8
C307
D701
Q701
C701
JW13
JW11
JW12
C515
JW10
R703
R702
R705
R711
R709
JW3
C516
R701
C513
C514
R139
R317
R318
JW9
D702
D703
D704
JW40
JW41
Q502
JW54
Q501
Q308
R338
R337
C316
D506
D507
C508
R504
JW51
C506
C505
D503
D502
CN501
T501
POWER TRANSFORMER
D505
D306
C503
C606
D606
C604
R601
C601
D604
D603
D607
Q601
JW609
JW608
C3
CN604
CNT1
CNT2
CN602
AC IN
CN601
JW605
JW600
S601
VOLTAGE
SELECTOR
C4
CN605
C605
C603
C504
R336
Q602
CN701
D504
R503
C317
R340
R339
JW34
JW35
JW33
R320
CN301
R330
JW47
R316
R312
R324
R315
R306
C306
R323
R322
R321
R333
R303
JW53
C309
JW49
R319
R341
D305
C509
C507
R502
R501
JW52
C501
C502
JW42
JW45
JW44
JW43
JW28
JW15
JW19
JW14
JW18
JW17
JW16
JW5
JW4
C510
CN302
C310
C202
R204
JW63
R207
JW62
C205
POWER BOARD
MAIN BOARD
CONTROL BOARD
AUTO POWER BOARD
13
31
1
4
8
5
1
4
8
5
1
4
8
5
1
4
8
5
1
4
8
5
21
1
1
5
14
6
3
1
2
1
1
2
1
2
41
1-680-784-
(11)
11
1-684-522-
(11)
11
1-680-785-
(11)
11
1-680-786-
(11)
11
1-680-789-
(11)
11
1-684-553-
(11)
11
85
14
85
14
8
61
5
14
85
14
LED BOARD
S1
POWER
D801
ON/STANDBY
CN1
CN801
D801
POWER SWITCH BOARD
(CHASSIS)
(CHASSIS)
1
3
SP5
SPEAKER
BLK
+
RED
BLU
BRN
AUTO
OFF
~
~
4
5
6
2
3
1
12
3
65
4
E MODEL
E MODEL
EXCEPT E MODEL
1-2. PRINTED WIRING BOARDS (SA-WS8) · Refer to page 3 for Circuit Boards Location.