Read Sony SA-WCT660 Service Manual online
SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
SA-WCT660
ACTIVE SUBWOOFER
9-893-710-02
2013H33-1
©
2013.08
US Model
Canadian Model
AEP Model
UK Model
Australian Model
Chinese Model
Taiwan Model
Ver. 1.1 2013.08
• SA-WCT660 is the active subwoofer in HT-CT660.
• All of the units included in the HT-CT660 (SA-
• All of the units included in the HT-CT660 (SA-
WCT660/SA-CT660) are required to confi rming
operation of SA-WCT660. Check in advance that
you have all of the units.
operation of SA-WCT660. Check in advance that
you have all of the units.
• For the TEST MODE for this unit, refer to the service manual of SA-CT660.
This system incorporates Dolby* Digital
and the DTS** Digital Surround System.
* Manufactured under license from
and the DTS** Digital Surround System.
* Manufactured under license from
Dolby Laboratories.
** Manufactured under license under
U.S. Patent Nos: 5,956,674; 5,974,380;
6,226,616; 6,487,535; 7,212,872;
7,333,929; 7,392,195; 7,272,567 &
other U.S. and worldwide patents
issued & pending. DTS-HD, the
Symbol, & DTS-HD and the Symbol
together are registered trademarks of
DTS, Inc.
Product includes software. © DTS, Inc.
All Rights Reserved.
6,226,616; 6,487,535; 7,212,872;
7,333,929; 7,392,195; 7,272,567 &
other U.S. and worldwide patents
issued & pending. DTS-HD, the
Symbol, & DTS-HD and the Symbol
together are registered trademarks of
DTS, Inc.
Product includes software. © DTS, Inc.
All Rights Reserved.
The BLUETOOTH
®
word mark and logos
are registered trademarks owned by
Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under
license.
Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under
license.
This system incorporates High-Definition
Multimedia Interface (HDMI™)
technology.
The terms HDMI and HDMI High-
Definition Multimedia Interface, and the
HDMI Logo are trademarks or registered
trademarks of HDMI Licensing LLC in the
United States and other countries.
Multimedia Interface (HDMI™)
technology.
The terms HDMI and HDMI High-
Definition Multimedia Interface, and the
HDMI Logo are trademarks or registered
trademarks of HDMI Licensing LLC in the
United States and other countries.
“BRAVIA” logo is a trademark of Sony
Corporation.
Corporation.
“x.v.Color” and “x.v.Color” logo are
trademarks of Sony Corporation.
trademarks of Sony Corporation.
“WALKMAN” and “WALKMAN” logo are
registered trademarks of Sony
Corporation.
registered trademarks of Sony
Corporation.
“PlayStation
®
” is a registered trademark
of Sony Computer Entertainment Inc.
The N Mark is a trademark or registered
trademark of NFC Forum, Inc. in the
United States and in other countries.
trademark of NFC Forum, Inc. in the
United States and in other countries.
Android is a trademark of Google Inc.
Other trademarks and trade names are
those of their respective owners.
those of their respective owners.
Copyrights
Dolby, and the double-D symbol are
trademarks of Dolby Laboratories.
trademarks of Dolby Laboratories.
SPECIFICATIONS
POWER OUTPUT (reference)
130 W (per channel at 4 ohms, 100 Hz) (Except
Chinese
model)
75 W (per channel at 4 ohms, 100 Hz) (Chinese model)
Speaker system
Subwoofer, Bass reflex
Speaker unit
Subwoofer, Bass reflex
Speaker unit
160 mm (6 3/8 in) cone type
Rated impedance
4
4
ohms
Power requirements
120 V AC, 60 Hz (US and Canadian models)
120 V AC, 50/60 Hz (Taiwan model)
220 V - 240 V AC, 50/60 Hz (AEP, Russian, UK,
Australian and Chinese models)
Power consumption
On: 30 W
Standby mode: 0.5 W or less
Dimensions (approx.)
271 mm × 404 mm × 271 mm
(10 3/4 in × 16 in × 10 3/4 in)
(w/h/d)
Mass (approx.)
Mass (approx.)
8.6 kg (18 Ib 15 3/8 oz)
Wireless transmitter/receiver
Communication system
Communication system
Wireless Sound Specification
version
2.0
Frequency band
2.4 GHz band (2.4000 GHz -
2.4835
GHz)
Modulation method
Pi/4
Pi/4
DQPSK
Design and specifications are subject to
change without notice.
change without notice.
s Standby power consumption: 0.5 W or
less.
s Over 85 % power efficiency of amplifier
block is achieved with the full digital
amplifier, S-Master.
amplifier, S-Master.
SA-WCT660
2
NOTES ON CHIP COMPONENT REPLACEMENT
•
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
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.
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 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
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.
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 2 V AC range are suitable. (See
Fig. A)
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 2 V AC range are suitable. (See
Fig. A)
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
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 PARTS
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.
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 FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
1.
SERVICING NOTES
.............................................
3
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 5
2-2. Rear Panel Block ............................................................ 5
2-3. Front LED Board, Top Panel Block ................................ 6
2-4. Top Plate Block, Fuse (F900) ......................................... 7
2-5. POWER
2-3. Front LED Board, Top Panel Block ................................ 6
2-4. Top Plate Block, Fuse (F900) ......................................... 7
2-5. POWER
Board
................................................................ 7
2-6. Power Cord (AC1) .......................................................... 8
2-7. Sub
2-7. Sub
AMP
Block
.............................................................. 9
2-8. Rear Plate Block ............................................................. 9
2-9. Sub MAIN Board ............................................................ 10
2-10. RF Modulator (SWA12-4V RX) (RF100) ...................... 11
2-11. Bottom Panel Block ........................................................ 12
2-12. Loudspeaker (16 cm) (SP100) ........................................ 13
2-9. Sub MAIN Board ............................................................ 10
2-10. RF Modulator (SWA12-4V RX) (RF100) ...................... 11
2-11. Bottom Panel Block ........................................................ 12
2-12. Loudspeaker (16 cm) (SP100) ........................................ 13
3. DIAGRAMS
3-1. Block
Diagram
................................................................ 15
3-2. Schematic Diagram - MAIN Section - ........................... 17
3-3. Printed Wiring Board - MAIN Section (1/2) - ................ 18
3-4. Printed Wiring Boards - MAIN Section (2/2) - .............. 19
3-5. Printed Wiring Board - POWER Board - ........................ 20
3-6. Schematic Diagram - POWER Board - .......................... 21
3-3. Printed Wiring Board - MAIN Section (1/2) - ................ 18
3-4. Printed Wiring Boards - MAIN Section (2/2) - .............. 19
3-5. Printed Wiring Board - POWER Board - ........................ 20
3-6. Schematic Diagram - POWER Board - .......................... 21
4.
EXPLODED VIEWS
4-1. Overall
Section
............................................................... 26
4-2. Sub
AMP
Section
............................................................ 27
4-3. Subwoofer Cabinet Section ............................................ 28
5.
ELECTRICAL PARTS LIST
.............................. 29
TABLE OF CONTENTS
Ver. 1.1
SA-WCT660
3
SECTION 1
SERVICING NOTES
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
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
• 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.
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
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 fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
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.
also be added to ordinary solder.
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
All of the units included in the HT-CT660 (SA-WCT660/SA-
CT660) are required to confi rming operation of SA-WCT660.
Check in advance that you have all of the units.
ERATION
All of the units included in the HT-CT660 (SA-WCT660/SA-
CT660) are required to confi rming operation of SA-WCT660.
Check in advance that you have all of the units.
NOTE OF REPLACING THE IC104 ON THE SUB MAIN
BOARD AND THE COMPLETE SUB MAIN BOARD
When IC104 on the SUB MAIN board and the complete SUB
MAIN board are replaced, it is necessary to spread the compound
between the SUB MAIN board and the heat sink.
BOARD AND THE COMPLETE SUB MAIN BOARD
When IC104 on the SUB MAIN board and the complete SUB
MAIN board are replaced, it is necessary to spread the compound
between the SUB MAIN board and the heat sink.
Part No.
Remarks
J-2501-221-A
THERMAL COMPOUND (G747)
Spread the compound referring to the fi gure below.
– SUB MAIN Board (Component Side) –
thermal compound G747
IC104
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C935 or
C936) to discharge the capacitor (C935 or C936).
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C935 or
C936) to discharge the capacitor (C935 or C936).
– POWER Board (Conductor Side) –
800
:/2 W
C935 (US, Canadian and Taiwan models)
C936 (AEP, Russian, UK, Australian
and Chinese models)
NOTE OF REPLACING THE RF MODULATOR
When the RF modulator (Ref. No. RF100) is exchanged, you must
perform linking between SA-CT660 and SA-WCT660.
When the RF modulator (Ref. No. RF100) is exchanged, you must
perform linking between SA-CT660 and SA-WCT660.
Linking method:
This operation requires a remote commander.
This operation requires a remote commander.
1
Press AMP MENU.
2
Select “WS” in with (select),
then press
then press
or (proceed).
3
Select “LINK,” then press
or
(proceed) .
4
“START” appears, then press
.
“SEARCH” appears, and the Sound
Bar searches for equipment that
can be used with Link. Proceed to
the next step within 1 minute.
To quit the Link function during a
search for equipment, press .
Bar searches for equipment that
can be used with Link. Proceed to
the next step within 1 minute.
To quit the Link function during a
search for equipment, press .
5
Press LINK on the rear of the
subwoofer with the point of a
pen, etc .
The
subwoofer with the point of a
pen, etc .
The
indicator on the
subwoofer lights up in green. “OK”
appears on the front panel display.
If “FAILED” appears, check to
ensure the subwoofer is turned
on, and perform the process again
from step 1.
appears on the front panel display.
If “FAILED” appears, check to
ensure the subwoofer is turned
on, and perform the process again
from step 1.
6
Press AMP MENU.
The AMP menu turns off.
The AMP menu turns off.
You can link the Sound Bar (SA-CT660)
and the subwoofer (SA-WCT660) again
to enable wireless transmission between
them.
and the subwoofer (SA-WCT660) again
to enable wireless transmission between
them.
Ver. 1.1
SA-WCT660
4
MODEL IDENTIFICATION
Distinguish by model number label stuck on the rear side of a main unit.
Distinguish by model number label stuck on the rear side of a main unit.
Note: The printed contents of following fi gure model number label may be different from the model number label of a main unit. Refer to the model number
label for the check of a part number.
MODEL NUMBER LABEL
US and Canadian models
AEP model
UK model
Australian model
– Rear side view –
Taiwan model
Chinese model
Russian model
4-453-073-0s
4-453-075-0s
4-461-079-0s
4-453-076-0s
4-461-078-0s
4-472-241-0s
4-461-080-0s
Ver. 1.1