Read Sony SA-WCT500 / SS-CT500 Service Manual online
SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
SA-WCT500/SS-CT500
SPECIFICATIONS
9-889-498-02
2009H05-1
©
2009.08
US Model
Canadian Model
AEP Modell
UK Model
Saudi Arabia Model
Ver. 1.1 2009.08
• SA-WCT500 is the amplifi er, HDMI, tuner, video
and active subwoofer section in HT-CT500.
• SS-CT500 is the speaker system in HT-CT500.
• When the operation of the subwoofer (SA-
• When the operation of the subwoofer (SA-
WCT500) or satellite speaker (SS-CT500) is
confi rmed, it is necessary to connect both these
set.
confi rmed, it is necessary to connect both these
set.
Confi rm the subwoofer (SA-WCT500) and sat-
ellite speaker (SS-CT500) are prepared before-
hand when you repair.
hand when you repair.
Photo: SA-WCT500
Photo: SS-CT500
This system incorporates Dolby* Digital and Pro Logic
Surround and the DTS** Digital Surround System.
Surround and the DTS** Digital Surround System.
* Manufactured under license from Dolby
Laboratories.
“Dolby”, “Pro Logic”, and the double-D symbol are
trademarks of Dolby Laboratories.
“Dolby”, “Pro Logic”, and the double-D symbol are
trademarks of Dolby Laboratories.
** Manufactured under license under U.S. Patent #'s:
5,451,942; 5,956,674; 5,974,380; 5,978,762;
6,487,535 & other U.S. and worldwide patents
issued & pending. DTS and DTS Digital Surround
are registered trademarks and the DTS logos and
Symbol are trademarks of DTS, Inc. © 1996-2008
DTS, Inc. All Rights Reserved.
6,487,535 & other U.S. and worldwide patents
issued & pending. DTS and DTS Digital Surround
are registered trademarks and the DTS logos and
Symbol are trademarks of DTS, Inc. © 1996-2008
DTS, Inc. All Rights Reserved.
This system incorporates High-Definition Multimedia
Interface (HDMI™) technology.
Interface (HDMI™) technology.
HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing LLC.
Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing LLC.
The font type (Shin Go R) installed in this system is
provided by MORISAWA & COMPANY LTD.
provided by MORISAWA & COMPANY LTD.
These names are the trademarks of MORISAWA &
COMPANY LTD., and the copyright of the font also
belongs to MORISAWA & COMPANY LTD.
COMPANY LTD., and the copyright of the font also
belongs to MORISAWA & COMPANY LTD.
iPod is a trademark of Apple Inc., registered in the U.S.
and other countries.
and other countries.
All other trademarks and registered trademarks are of
their respective holders. In this manual, ™ and ® marks
are not specified.
their respective holders. In this manual, ™ and ® marks
are not specified.
The Bluetooth word mark and logos are owned by the
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.
Other trademarks and trade names are those of their
respective owners.
respective owners.
“M-crew Server” is a trademark of Sony Corporation.
“BRAVIA Sync” is a trademark of Sony Corporation.
“PLAYSTATION” is a trademark of Sony Computer
Entertainment Inc.
Entertainment Inc.
“S-AIR” and its logo are trademarks of Sony
Corporation.
Corporation.
“x.v.Color” and “x.v.Color” logo are trademarks of
Sony Corporation.
Sony Corporation.
Formats supported by this
system
system
Digital input formats supported by this system
are as follows.
are as follows.
* Linear PCM accepts sampling frequencies of no
more than 48 kHz.
AUDIO POWER SPECIFICATIONS (SA-WCT500)
for the U.S. model
for the U.S. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
DISTORTION:
With 4 ohm loads, both
channels driven, from 180 -
20,000 Hz; rated 60 watts
per channel minimum RMS
power, with no more than
1 % total harmonic
distortion from 250 milli
watts to rated output.
channels driven, from 180 -
20,000 Hz; rated 60 watts
per channel minimum RMS
power, with no more than
1 % total harmonic
distortion from 250 milli
watts to rated output.
Format
Supported/Not supported
Dolby Digital
a
DTS
a
Linear PCM (2ch)*
a
Linear PCM (5.1ch,
7.1ch)* (Only on
HDMI)
7.1ch)* (Only on
HDMI)
a
Dolby Digital Plus
×
Dolby True HD
×
×
D
H
-
S
T
D
Amplifier Section (SA-WCT500)
U.S. models:
Power output (reference): RMS output power
Power output (reference): RMS output power
FL/FR/C*: 100 watts (per
channel at 4 ohms, 1 kHz,
10 % THD)
Subwoofer: 100 watts (4
ohms, 100 Hz, 10 % THD)
channel at 4 ohms, 1 kHz,
10 % THD)
Subwoofer: 100 watts (4
ohms, 100 Hz, 10 % THD)
Canadian models:
Power output (rated):
Power output (rated):
FL/FR: 80 W + 80 W (at 4
ohms, 1 kHz, 1 % THD)
ohms, 1 kHz, 1 % THD)
Power output (reference): RMS output power
FL/FR/C*: 100 watts (per
channel at 4 ohms, 1 kHz,
10 % THD)
Subwoofer: 100 watts (4
ohms, 100 Hz, 10 % THD)
channel at 4 ohms, 1 kHz,
10 % THD)
Subwoofer: 100 watts (4
ohms, 100 Hz, 10 % THD)
Power output (rated)
Front L / Front R:
Front L / Front R:
80 W + 80 W
(at 4 ohms, 1 kHz, 1 %
THD)
(at 4 ohms, 1 kHz, 1 %
THD)
Power output (reference)
RMS output power
Front L / Front R:
RMS output power
Front L / Front R:
100 W/ch (per channel at 4
ohms, 1 kHz, 10 % THD)
ohms, 1 kHz, 10 % THD)
Center*:
100 W (at 4 ohms, 1 kHz,
10 % THD)
10 % THD)
Subwoofer:
100 W (at 4 ohms, 100 Hz,
10 % THD)
10 % THD)
AEP, Russian, UK and Saudi Arabia models:
* Depending on the sound field settings and the source,
there may be no sound output.
Inputs (Analog)
TV, VIDEO 1
TV, VIDEO 1
Sensitivity: 550 mV
Impedance: 33 kohms
Impedance: 33 kohms
Inputs (Digital)
TV, VIDEO 2
TV, VIDEO 2
Optical
VIDEO 3
Coaxial, optical
HDMI section (SA-WCT500)
Connector
HDMI™ connector
Video inputs/outputs
BD, DVD, SAT/CATV:
640 × 480p@60 Hz
720 × [email protected]/60 Hz
1280 × [email protected]/60 Hz
1920 × [email protected]/
60 Hz
1920 × [email protected]/
60 Hz
720 × 576p@50 Hz
1280 × 720p@50 Hz
1920 × 1080i@50 Hz
1920 × 1080p@50 Hz
1920 × 1080p@24 Hz
640 × 480p@60 Hz
720 × [email protected]/60 Hz
1280 × [email protected]/60 Hz
1920 × [email protected]/
60 Hz
1920 × [email protected]/
60 Hz
720 × 576p@50 Hz
1280 × 720p@50 Hz
1920 × 1080i@50 Hz
1920 × 1080p@50 Hz
1920 × 1080p@24 Hz
Audio inputs
BD, DVD, SAT/CATV:
Linear PCM 7.1ch/
Dolby Digital/DTS
Linear PCM 7.1ch/
Dolby Digital/DTS
Tuner section (SA-WCT500)
System
PLL quartz-locked digital
synthesizer
synthesizer
FM tuner section
Tuning range
Tuning range
87.5 MHz - 108.0 MHz
(100 kHz step)
(100 kHz step)
Antenna (aerial)
FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Tuning range
530 kHz - 1,710 kHz (with
the interval set at 10 kHz)
531 kHz - 1,710 kHz (with
the interval set at 9 kHz)
the interval set at 10 kHz)
531 kHz - 1,710 kHz (with
the interval set at 9 kHz)
Antenna (aerial)
AM loop antenna (aerial)
Intermediate frequency
450 kHz
US and Canadian models:
SA-WCT500
ACTIVE SUBWOOFER
SS-CT500
SPEAKER SYSTEM
– Continued on next page –
SA-WCT500/SS-CT500
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.
Speaker (SS-CT500)
Speaker system
Full range, Bass reflex
(front speaker part), Full
range, Acoustic suspension
(center speaker part)
(front speaker part), Full
range, Acoustic suspension
(center speaker part)
Speaker unit
50 mm (2 in) cone type
Rated impedance
4 ohms
Dimensions (approx.)
957 mm × 90 mm × 51 mm
(37
(37
3
/
4
in × 3
5
/
8
in × 2
1
/
8
in) (w/h/d)
Mass (approx.)
1.9 kg (4 lb 4 oz)
Speaker cords
3 m (118
1
/
8
in)
Subwoofer (SA-WCT500)
Speaker system
Subwoofer, Bass reflex
Speaker unit
130 mm (5
1
/
8
in) cone type
Rated impedance
4 ohms
Dimensions (approx.)
212 mm × 374 mm × 364
mm (8
mm (8
3
/
8
in × 14
3
/
4
in ×
14
3
/
8
in) (w/h/d)
Mass (approx.)
9.1 kg (20 lb 1oz)
General
Power requirements
Power consumption
On: 110 W
Standby mode: 0.3 W (when “CTRL: HDMI”
and “S-AIR STBY” are set to “OFF.”)
Standby mode: 0.3 W (when “CTRL: HDMI”
and “S-AIR STBY” are set to “OFF.”)
Power output
(DIGITAL MEDIA PORT) DC OUT: 5 V, 700 mA
(DIGITAL MEDIA PORT) DC OUT: 5 V, 700 mA
Design and specifications are subject to change without
notice.
notice.
US and Canadian models: 120 V AC, 60 Hz
AEP, Russian, UK and Saudi Arabia models:
AEP, Russian, UK and Saudi Arabia models:
220 - 240 V AC, 50/60 Hz
Video section (SA-WCT500)
Inputs
VIDEO: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
P
B
/C
B
, P
R
/C
R
: 0.7 Vp-p
75 ohms
FM tuner section
Tuning range
Tuning range
87.5 - 108.0 MHz
(50 kHz step)
(50 kHz step)
Antenna (aerial)
FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Tuning range
531 kHz - 1,602 kHz (with
the interval set at 9 kHz)
the interval set at 9 kHz)
Antenna (aerial)
AM loop antenna (aerial)
Intermediate frequency
450 kHz
System
PLL quartz-locked digital
synthesizer
synthesizer
AEP, Russian, UK and Saudi Arabia models:
s Standby power consumption 0.3 W.
s Halogenated flame retardants are not used in the
s Halogenated flame retardants are not used in the
certain printed wiring boards.
s Over 85 % power efficiency of amplifier block is
achieved with the full digital amplifier, S-master.
SA-WCT500/SS-CT500
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 6
2-2. AMP
Block
..................................................................... 6
2-3. Front Panel Block ........................................................... 7
2-4. Bracket
2-4. Bracket
(TOP)
................................................................. 9
2-5. S-AIR Board, Tuner (FM/AM) ....................................... 9
2-6. D-VIDEO
2-6. D-VIDEO
Board
............................................................. 10
2-7. MAIN
Board
................................................................... 11
2-8. POWER
Board
................................................................ 11
3.
TEST MODE
............................................................ 12
4. ELECTRICAL
ADJUSTMENTS
........................ 14
5. DIAGRAMS
5-1. Block Diagram - HDMI Section (SA-WCT500) - .......... 15
5-2. Block
5-2. Block
Diagram
- DIGITAL VIDEO Section (SA-WCT500) - ................. 16
5-3. Block Diagram - INPUT Section (SA-WCT500) - ......... 17
5-4. Block Diagram - DSP Section (SA-WCT500) - ............. 18
5-5. Block Diagram - AMP, PANEL Section - ....................... 19
5-6. Block
5-4. Block Diagram - DSP Section (SA-WCT500) - ............. 18
5-5. Block Diagram - AMP, PANEL Section - ....................... 19
5-6. Block
Diagram
- POWER SUPPLY Section (SA-WCT500) - ................ 20
5-7. Printed
Wiring
Board
- D-VIDEO Board (Side A) (SA-WCT500) - ................. 22
5-8. Printed
Wiring
Board
- D-VIDEO Board (Side B) (SA-WCT500) - ................. 23
5-9. Schematic
Diagram
- D-VIDEO Board (1/6) (SA-WCT500) - ....................... 24
5-10. Schematic Diagram
- D-VIDEO Board (2/6) (SA-WCT500) - ....................... 25
5-11. Schematic Diagram
- D-VIDEO Board (3/6) (SA-WCT500) - ....................... 26
5-12. Schematic Diagram
- D-VIDEO Board (4/6) (SA-WCT500) - ....................... 27
5-13. Schematic Diagram
- D-VIDEO Board (5/6) (SA-WCT500) - ....................... 28
5-14. Schematic Diagram
- D-VIDEO Board (6/6) (SA-WCT500) - ....................... 29
5-15. Schematic Diagram
- ANALOG-CSIRKE Board (1/2) (SA-WCT500) - ....... 30
5-16. Schematic Diagram
- ANALOG-CSIRKE Board (2/2) (SA-WCT500) - ....... 31
5-17. Printed Wiring Board
- ANALOG-CSIRKE Board (SA-WCT500) - ................ 32
TABLE OF CONTENTS
5-18. Printed Wiring Boards
- IO Section (SA-WCT500) - .......................................... 33
5-19. Schematic Diagram
- IO-DIGITAL Board (SA-WCT500) - ........................... 34
5-20. Schematic Diagram
- S-AIR Board (SA-WCT500) - ...................................... 35
5-21. Printed Wiring Board
- MAIN Board (Component Side) (SA-WCT500) - ....... 36
5-22. Printed Wiring Board
- MAIN Board (Conductor Side) (SA-WCT500) - ......... 37
5-23. Schematic Diagram
- MAIN Board (1/6) (SA-WCT500) - ............................. 38
5-24. Schematic Diagram
- MAIN Board (2/6) (SA-WCT500) - ............................. 39
5-25. Schematic Diagram
- MAIN Board (3/6) (SA-WCT500) - ............................. 40
5-26. Schematic Diagram
- MAIN Board (4/6) (SA-WCT500) - ............................. 41
5-27. Schematic Diagram
- MAIN Board (5/6) (SA-WCT500) - ............................. 42
5-28. Schematic Diagram
- MAIN Board (6/6) (SA-WCT500) - ............................. 43
5-29. Printed Wiring Boards
- KEY, SPEAKER Section - ........................................... 44
5-30. Schematic Diagram
- KEY, SPEAKER Section - ........................................... 45
5-31. Printed Wiring Board
- DISPLAY Board (SA-WCT500) - ................................ 46
5-32. Schematic Diagram
- DISPLAY Board (SA-WCT500) - ................................ 47
5-33. Printed Wiring Board
- POWER Board (SA-WCT500) - .................................. 48
5-34. Schematic Diagram
- POWER Board (SA-WCT500) - .................................. 49
6.
EXPLODED VIEWS
6-1. Cabinet Section (SA-WCT500) ...................................... 82
6-2. Front Panel Section (SA-WCT500) ................................ 83
6-3. AMP Section (SA-WCT500) .......................................... 84
6-4. Main section (SA-WCT500) ........................................... 85
6-5. Chassis Section (SA-WCT500) ...................................... 86
6-6. SS-CT500
6-2. Front Panel Section (SA-WCT500) ................................ 83
6-3. AMP Section (SA-WCT500) .......................................... 84
6-4. Main section (SA-WCT500) ........................................... 85
6-5. Chassis Section (SA-WCT500) ...................................... 86
6-6. SS-CT500
........................................................................ 87
7.
ELECTRICAL PARTS LIST
.............................. 88
Accessories are given in the last of the electrical parts list.
Ver. 1.1
SA-WCT500/SS-CT500
4
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
When the operation of the subwoofer (SA-WCT500) or satellite
speaker (SS-CT500) is confi rmed, it is necessary to connect both
these set.
Confi rm the subwoofer (SA-WCT500) and satellite speaker (SS-
CT500) are prepared beforehand when you repair.
ERATION
When the operation of the subwoofer (SA-WCT500) or satellite
speaker (SS-CT500) is confi rmed, it is necessary to connect both
these set.
Confi rm the subwoofer (SA-WCT500) and satellite speaker (SS-
CT500) are prepared beforehand when you repair.
NOTE OF CONFIRMING THE BOARDS (SA-WCT500)
Protecting is generated when energizing with the heat sink de-
tached. Fix the heat sink to the MAIN board by using the screw
and the nut without fail when you confi rm the board.
Protecting is generated when energizing with the heat sink de-
tached. Fix the heat sink to the MAIN board by using the screw
and the nut without fail when you confi rm the board.
CONFIRMING THE POWER BOARD (SA-WCT500)
The POWER board can be confi rmed by removing the bottom
plate of the active subwoofer.
plate of the active subwoofer.
NOTE THE IC3506 AND IC3508 ON THE D-VIDEO
BOARD REPLACING (SA-WCT500)
IC3506 and IC3508 on the D-VIDEO board cannot exchange with
single. When these parts are damaged, exchange the entire mount-
ed board.
BOARD REPLACING (SA-WCT500)
IC3506 and IC3508 on the D-VIDEO board cannot exchange with
single. When these parts are damaged, exchange the entire mount-
ed board.
MODEL IDENTIFICATION (SA-WCT500)
– Model Number Label –
Power
Voltage
Indication
Voltage
Indication
Model
Power Voltage Indication
US and Canadian models
-
120V 60Hz 100W
Except US and Canadian models
-
220-240V 50/60Hz 100W
NOTE OF REPLACING THE IC340 AND IC400 ON THE
MAIN BOARD AND THE COMPLETE MAIN BOARD
(SA-WCT500)
When IC340 and IC400 on the MAIN board and the complete
MAIN board are replaced, it is necessary to spread the compound
(OIL COMPOUND G777) (Part No. J-2501-335-A ) between the
main board and the heat sink.
Spread the compound referring to the fi gure below.
MAIN BOARD AND THE COMPLETE MAIN BOARD
(SA-WCT500)
When IC340 and IC400 on the MAIN board and the complete
MAIN board are replaced, it is necessary to spread the compound
(OIL COMPOUND G777) (Part No. J-2501-335-A ) between the
main board and the heat sink.
Spread the compound referring to the fi gure below.
oil compound G777
(J-2501-335-A)
(J-2501-335-A)
IC340
IC400
– MAIN Board (Component Side) –
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
(SA-WCT500)
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C903) to
discharge the capacitor (C903).
(SA-WCT500)
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C903) to
discharge the capacitor (C903).
C903
800
:/2 W
– POWER Board (Conductor Side) –
• JIG
When disassembling the set, use the following jig (for speaker
When disassembling the set, use the following jig (for speaker
removal).
Part No. J-2501-238-A JIG FOR SPEAKER REMOVAL