HT-CT150, HT-CT350, SA-WCT150, SA-WCT350 - Sony Audio Service Manual (repair manual)

ht-ct150, ht-ct350, sa-wct150, sa-wct350 service manual
Model
HT-CT150 HT-CT350 SA-WCT150 SA-WCT350
Pages
71
Size
3.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-ct150-ht-ct350-sa-wct150-sa-wct350.pdf
Date

Read Sony HT-CT150 / HT-CT350 / SA-WCT150 / SA-WCT350 Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
SA-WCT150/WCT350
SPECIFICATIONS
ACTIVE SUBWOOFER
9-889-812-04
2010L05-1
© 
2010.12
US Model
Canadian Model
Singapore Model
SA-WCT150/WCT350
AEP Model
UK Model
Taiwan Model
Thai Model
SA-WCT350
E Model
SA-WCT150
Ver. 1.3  2010.12
•  SA-WCT150 is the amplifi er, HDMI and active 
subwoofer section in HT-CT150.
•  SA-WCT350 is the amplifi er, HDMI, tuner and 
active subwoofer section in HT-CT350.
• When the operation of the subwoofer (SA-
WCT150/WCT350) is confi rmed, it is necessary 
to connect subwoofer (SA-WCT150/WCT350) 
and satellite speaker (SS-CT150/CT350).
 Confi rm the subwoofer (SA-WCT150/WCT350) 
and satellite speaker (SS-CT150/CT350) are 
prepared beforehand when you repair.
* Linear PCM accepts sampling frequencies of no 
more than 48 kHz.
AUDIO POWER SPECIFICATIONS 
(SA-WCT350)
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
(FTC)
for the U.S. model
Front L + Front R:
With 4 ohms 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.
Format
Supported/Not supported
Dolby Digital
a
DTS
a
Linear PCM (2ch)*
a
Linear PCM (5.1ch, 
7.1ch)* (Only on 
HDMI)
a
Dolby Digital Plus
×
Dolby True HD
×
×
D
H
-
S
T
D
Amplifier section (SA-WCT350)
U.S. models:
POWER OUTPUT (reference)
Front L/Front R: 
100 W (per channel at 
4 ohms, 1 kHz)
Center: 
100 W (at 4 ohms, 5 kHz)
Subwoofer: 
100 W (at 4 ohms, 100 Hz)
Canadian, AEP, Russian, UK, Singapore, Taiwan and 
Thai models:
POWER OUTPUT (rated)
Front L / Front R:
65 W + 65 W
(at 4 ohms, 1 kHz, 1 % 
THD)
POWER OUTPUT (reference)
Front L/Front R:
100 W (per channel at 4 
ohms, 1 kHz)
Center: 
100 W (at 4 ohms, 5 kHz)
Subwoofer:
100 W (at 4 ohms, 100 Hz)
Inputs
TV, SA-CD/CD
Analog
TV, SAT/CATV
Digital (Optical)
VIDEO
Digital (Coaxial)
HDMI section
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
Formats supported by this 
system
Digital input formats supported by this system 
are as follows.
AUDIO POWER SPECIFICATIONS 
(SA-WCT150)
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
(FTC)
for the U.S. model
Front L + Front R:
With 4 ohms loads, both 
channels driven, from 180 - 
20,000 Hz; rated 50 Watts 
per channel minimum RMS 
power, with no more than 1 
% total harmonic distortion 
from 250 milli watts to 
rated output.
Amplifier section (SA-WCT150)
U.S. models:
POWER OUTPUT (reference)
Front L/Front R/Center: 
85 W (per channel at 
4 ohms, 1 kHz)
Subwoofer: 
85 W (at 4 ohms, 100 Hz)
Canadian, Chilean, Peruvian, Saudi Arabia and 
POWER OUTPUT (rated)
Front L/Front R: 
60 W + 60 W (at 4 ohms, 
1 kHz, 1 % THD)
POWER OUTPUT (reference)
Front L/Front R/Center:
85 W (per channel at 
4 ohms, 1 kHz)
Subwoofer: 
85 W (at 4 ohms, 100 Hz)
Inputs
TV, SA-CD/CD
Analog
TV, SAT/CATV
Digital (Optical)
VIDEO
Digital (Coaxial)
Singapore models:
– Continued on next page –
Photo: SA-WCT350
SA-WCT150/WCT350
2
This system incorporates Dolby* Digital and Pro Logic 
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.
** 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 the Symbol are 
registered trademarks & DTS Digital Surround and 
the DTS logos are trademarks of DTS, Inc. Product 
includes software. © DTS, Inc. All Rights Reserved.
This system incorporates High-Definition Multimedia 
Interface (HDMI™) technology.
HDMI, the HDMI Logo, and High-Definition 
Multimedia Interface are trademarks or registered 
trademarks of HDMI Licensing LLC in the United 
States and other countries.
“BRAVIA Sync” is a trademark of Sony Corporation.
“PlayStation” is a registered trademark of Sony 
Computer Entertainment Inc.
“x.v.Color” and “x.v.Color” logo are trademarks of 
Sony Corporation.
ENERGY STAR
®
 is a U.S. 
registered mark.
As an ENERGY STAR
®
 partner, 
Sony Corporation has determined that 
this product meets the ENERGY 
STAR
®
 guidelines for energy 
efficiency.
General
Power requirements
120 V AC, 60 Hz
Power consumption
On: 75 W (SA-WCT150)
Standby mode: 0.3 W or less (Control for HDMI 
is off.)
Power output 
(DIGITAL MEDIA PORT) DC OUT: 5 V, 700 mA 
Design and specifications are subject to change without 
notice.
s Standby power consumption 0.3 W or less.
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.
(US, Canadian models)
220 V –
 240 V AC, 50/60 Hz
(Other models)
On: 80 W (SA-WCT350)
Subwoofer
Speaker system
Subwoofer, Bass reflex
Speaker unit
130 mm (5 1/8 in) cone 
type
Rated impedance
4 ohms
Dimensions (approx.)
196 mm × 450 mm × 410 
mm (7 3/4 in × 17 3/4 in × 
16 1/4 in) (w/h/d)
Mass (approx.)
10.5 kg (23 lb 3 oz)
Antenna (aerial)
AM loop antenna (aerial)
Intermediate frequency
450 kHz
Tuning range
531 kHz - 1,602 kHz (with 
the interval set at 9 kHz)
AEP, Russian and UK models:
Tuner section (SA-WCT350 only)
System
PLL quartz-locked digital 
synthesizer
FM tuner section
Tuning range 
87.5 - 108.0 MHz 
(100 kHz step)
Antenna (aerial)
FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
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)
US and Canadian models:
Video inputs/outputs (3D) BD, DVD, SAT/CATV;
1280 × [email protected]/60 Hz 
Frame packing
1920 × [email protected]/60 Hz 
Frame packing
1920 × [email protected]/60 Hz 
Side-by-Side (Half)
1920 × [email protected]/60 Hz 
Side-by-Side (Half)
1280 × 720p@50 Hz 
Frame packing
1920 × 1080i@50 Hz 
Frame packing
1920 × 1080i@50 Hz 
Side-by-Side (Half)
1920 × 1080p@50 Hz 
Side-by-Side (Half)
1920 × 1080p@24 Hz 
Frame packing
Audio inputs
BD, DVD, SAT/CATV: 
Linear PCM 7.1ch/
Dolby Digital/DTS
120 V 
AC, 50/60 Hz
(Taiwan model)
Singapore, Taiwan and Thai models:
Tuning range
531 kHz - 1,602 kHz (with 
the interval set at 9 kHz)
530 kHz - 1,610 kHz (with 
the interval set at 10 kHz)
Ver. 1.3
SA-WCT150/WCT350
3
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.
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.
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 2 V AC range are suitable. (See 
Fig. A)
1.5 k
Ω
0.15 
μF
AC
voltmeter
(0.75 V)
To Exposed Metal
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 
 
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  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
  .............................................   4
2. DISASSEMBLY
2-1.  Disassembly  Flow ...........................................................  
6
2-2.  Top Panel Block ..............................................................   7
2-3.  Loudspeaker (13 cm) (SP151) ........................................   8
2-4.  AMP Block .....................................................................   9
2-5.  Case (Top) Block, Back Panel Block ..............................   10
2-6.  MAIN  Board ...................................................................   10
3. 
TEST  MODE 
 ............................................................   11
4. DIAGRAMS
4-1.  Block Diagram - HDMI Section - ...................................   13
4-2.  Block Diagram - MAIN Section - ...................................   14
4-3.  Block Diagram - AMP Section - .....................................   15
4-4.  Block Diagram - POWER SUPPLY Section - ................   16
4-5.  Printed Wiring Board - HDMI Board - ...........................   18
4-6.  Schematic Diagram - HDMI Board (1/3) - .....................   19
4-7.  Schematic Diagram - HDMI Board (2/3) - .....................   20
4-8.  Schematic Diagram - HDMI Board (3/3) - .....................   21
4-9.  Printed Wiring Board - IO ANALOG Board - ................   22
4-10.  Schematic Diagram - IO ANALOG Board - ..................   23
4-11.  Printed Wiring Board - IO DIGITAL Board - .................   24
4-12.  Schematic Diagram - IO DIGITAL Board - ...................   24
4-13.  Schematic Diagram - MAIN Board (1/5) - .....................   25
4-14.  Schematic Diagram - MAIN Board (2/5) - .....................   26
4-15.  Schematic Diagram - MAIN Board (3/5) - .....................   27
4-16.  Schematic Diagram - MAIN Board (4/5) - .....................   28
4-17.  Schematic Diagram - MAIN Board (5/5) - .....................   29
4-18.  Printed Wiring Board 
 
- MAIN Board (Component Side) - ................................   30
4-19.  Printed Wiring Board 
 
- MAIN Board (Conductor Side) - ..................................   31
4-20.  Printed Wiring Boards - SPEAKER Section - ................   32
4-21.  Schematic Diagram - SPEAKER Section - ....................   33
4-22.  Printed Wiring Boards - PANEL Section - .....................   34
4-23.  Schematic Diagram - PANEL Section - ..........................   35
4-24.  Printed Wiring Board - POWER Board - ........................   36
4-25.  Schematic Diagram - POWER Board - ..........................   37
5. 
EXPLODED  VIEWS
5-1.  Overall Section ...............................................................   53
5-2.  Cabinet  Section ...............................................................   54
5-3.  AMP  Section ...................................................................   55
5-4.  POWER Board section ...................................................   56
6. 
ELECTRICAL  PARTS  LIST
   ..............................   57
Accessories are given in the last of the electrical parts list.
TABLE  OF  CONTENTS
SA-WCT150/WCT350
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 
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 
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.
 
Soldering irons using a temperature regulator should be set to 
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.
• 
Usable with ordinary solder
 
It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.
MODEL  IDENTIFICATION
Bar cord
Model Number Label
– Rear View –
Part No.
Model
Part No.
WCT150: US and Canadian models
4-166-506-0
[]
WCT350: US and Canadian models
4-174-743-0
[]
WCT350: AEP model
4-174-931-0
[]
WCT350: UK model
4-174-933-0
[]
WCT350: Russian model
4-174-934-0
[]
WCT150: Saudi Arabia model
4-177-835-0
[]
WCT150: Chilean and Peruvian 
 
models
4-184-061-0
[]
WCT150: Singapore model
4-184-062-0
[]
WCT350: Singapore model
4-184-063-0
[]
WCT350: Taiwan model
4-184-064-0
[]
WCT350: Thai model
4-184-065-0
[]
ADVANCE  PREPARATION  WHEN  CONFIRMING  OP-
ERATION
When the operation of the subwoofer (SA-WCT150/WCT350) is 
confi rmed, it is necessary to connect subwoofer (SA-WCT150/
WCT350) and satellite speaker (SS-CT150/CT350).
Confi rm the subwoofer (SA-WCT150/WCT350) and satellite 
speaker (SS-CT150/CT350) are prepared beforehand when you 
repair.
NOTE  THE  IC3500  AND  IC3501  ON  THE  HDMI  BOARD  
REPLACING
IC3500 and IC3501 on the HDMI board cannot exchange with sin-
gle. When these parts are damaged, exchange the entire mounted 
board.
NOTE  OF  REPLACING  THE  IC340  AND  IC400  ON  THE  
MAIN  BOARD  AND  THE  COMPLETE  MAIN  BOARD 
When IC340 and IC400 on the MAIN board and the complete 
MAIN board are replaced, it is necessary to spread the compound 
(THERMAL COMPOUND G747) (Part No. J-2501-221-A) be-
tween the main board and the heat sink.
Spread the compound referring to the fi gure below.
– MAIN Board (Component Side) –
thermal compound G747
(J-2501-221-A)
IC400
IC340
CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING 
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).
800 
:/2 W
C903
– POWER Board (Conductor Side) –
• JIG
  When disassembling the set, use the following jig (for speaker 
removal).
  Part No. J-2501-238-A  JIG FOR SPEAKER REMOVAL
Ver. 1.3
Page of 71
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