SA-SC8, SA-WS8, SS-CT8, SS-TS8 - Sony Audio Service Manual (repair manual)

sa-sc8, sa-ws8, ss-ct8, ss-ts8 service manual
Model
SA-SC8 SA-WS8 SS-CT8 SS-TS8
Pages
15
Size
855.94 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-sc8-sa-ws8-ss-ct8-ss-ts8.pdf
Date

Read Sony SA-SC8 / SA-WS8 / SS-CT8 / SS-TS8 Service Manual online

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
µ
F
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 
µ
F unless otherwise noted.  pF: 
µµ
F
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
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Here you can read online and download Sony SA-SC8 / SA-WS8 / SS-CT8 / SS-TS8 Service Manual in PDF. SA-SC8 / SA-WS8 / SS-CT8 / SS-TS8 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony SA-SC8 / SA-WS8 / SS-CT8 / SS-TS8 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.