HT-CT380, HT-CT381, SA-CT380, SA-CT381 — Sony Audio Service Manual (repair manual)

Model
HT-CT380 HT-CT381 SA-CT380 SA-CT381
Pages
72
Size
5.12 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-ct380-ht-ct381-sa-ct380-sa-ct381.pdf
Date

View Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HT-CT380/CT381
SA-CT380/CT381
SPECIFICATIONS
HT-CT380/CT381
SOUND BAR
SA-CT380/CT381
ACTIVE SPEAKER SYSTEM
9-896-145-03
2015E33-1
© 
2015.05
US Model
Canadian Model
E Model
Australian Model
PX Model
HT-CT380/SA-CT380
AEP Model
UK Model
HT-CT380/CT381/SA-CT380/CT381
Ver. 1.2  2015.05
•  All of the units included in the HT-
CT380/CT381 (SA-CT380/CT381, 
SA-WCT380/WCT381, Remote con-
trol) are required to confi rming opera-
tion of SA-CT380/CT381. Check in 
advance that you have all of the units.
COMPONENT  MODEL  NAME
HT-CT380
HT-CT381
Bar Speaker (Active Speaker System)
SA-CT380
SA-CT381
Subwoofer (Active Subwoofer)
SA-WCT380
SA-WCT381
Amplifier section
U.S. models:
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
(FTC)
Front L + Front R:
With 4 ohms loads, both channels 
driven, from 200 Hz - 20,000 Hz; rated 
35 Watts per channel minimum RMS 
power, with no more than 1% total 
harmonic distortion from 
250 milliwatts to rated output.
POWER OUTPUT (reference)
Front L/Front R: 100 Watts (per 
channel at 4 ohms, 1 kHz)
Other models:
POWER OUTPUT (rated)
Front L + Front R:
50 W + 50 W (at 4 ohms, 1 kHz, 1% 
THD)
POWER OUTPUT (reference)
Front L/Front R: 100 Watts (per 
channel at 4 ohms, 1 kHz)
Inputs
HDMI IN* 1/2/3
ANALOG IN
DIGITAL IN (TV)
Outputs
HDMI OUT (ARC)
HDMI Section
Connector
Type A (19pin)
BLUETOOTH section
Communication system
BLUETOOTH Specification version 3.0
Output
BLUETOOTH Specification Power Class 
2
Maximum communication range
Line of sight approx. 10 m (33 ft)
1)
Maximum number of devices to be 
registered
9 devices
Frequency band
2.4 GHz band (2.4000 GHz - 
2.4835 GHz)
Modulation method
FHSS (Freq Hopping Spread Spectrum)
Compatible BLUETOOTH profiles
2)
A2DP 1.2 (Advanced Audio Distribution 
Profile)
AVRCP 1.3 (Audio Video Remote 
Control Profile)
Supported Codecs
3)
SBC
4)
, AAC
5)
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency 
44.1 kHz)
1)
The actual range will vary depending on 
factors such as obstacles between 
devices, magnetic fields around a 
microwave oven, static electricity, 
cordless phone, reception sensitivity, 
operating system, software application, 
etc.
2)
BLUETOOTH standard profiles indicate 
the purpose of BLUETOOTH 
communication between devices.
3)
Codec: Audio signal compression and 
conversion format
4)
Subband Codec
5)
Advanced Audio Coding
Front L/Front R speaker section
Speaker system
Full range speaker system, 
Acoustic suspension
Speaker
General
Power requirements
120 V AC, 60 Hz (US and Canadian models)
110 V - 240 V AC, 50 Hz/60 Hz
(PX and Latin American models)
220 V - 240 V AC, 50 Hz/60 Hz (Other models)
Power consumption
Dimensions (approx.) (w/h/d)
Mass (approx.)
2.4 kg (5 lb 4 
5
/
8
oz)
Supplied accessories
Remote control (1)
R03 (size AAA) batteries (2)
Optical digital cable (1)
Conversion  Adaptor (1)
(Latin American model only)
Wall mounting brackets (2) and screws (2)
Speaker pads for the subwoofer (4)
Startup Guide (1)
Operating Instructions (1)
Speaker system
Wireless Sound Specification version 
2.0
Frequency band
2.4 GHz (2.4000 GHz - 2.4835 GHz)
Modulation method
Pi / 4 DQPSK
Design and specifications are subject to 
change without notice.
Wireless transmitter section 
* The 1, 2, and 3 jacks are 
identical. Using any of them makes no 
difference.
900 mm × 51 mm × 117 mm (35
1
/
2
in × 
2
1
/
8
in × 4
5
/
8
in) (without wall 
mounting brackets)
900 mm × 120 mm × 72 mm (35
1
/
2
in × 
4
3
/
4
in × 2
7
/
8
in) (with wall mounting 
brackets)
60 mm (2 
3
/
8
 in) cone type
On: 37 W
Standby: 0.3 W or less
(at the Power saving mode)
Standby: 0.5 W or less
(When [S. THRU] is [ON]: 6 W or less)
•  Please refer to service manual separately issued for Subwoofer.
Note:
Be sure to keep your PC used for service and 
checking of this unit always updated with the 
latest version of your anti-virus software.
In case a virus affected unit was found during 
service, contact your Service Headquarters. 
Photo: SA-CT380
HT-CT380/CT381
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.
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.
This system incorporates Dolby* Digital 
and the DTS** Digital Surround System.
* Manufactured under license from 
Dolby Laboratories.
Dolby, and the double-D symbol are 
trademarks of Dolby Laboratories.
** For DTS patents, see http://
patents.dts.com. Manufactured 
under license from DTS Licensing 
Limited. DTS, DTS-HD, the Symbol, & 
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.
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.
The N Mark is a trademark or registered 
trademark of NFC Forum, Inc. in the 
United States and in other countries.
Android™ and Google Play™ are 
trademarks of Google Inc.
Copyrights and Trademarks
Apple, the Apple logo, iPhone, iPod, and 
iPod touch are trademarks of Apple Inc., 
registered in the U.S. and other 
countries. App Store is a service mark of 
Apple Inc.
“Made for iPod,” and “Made for iPhone” 
mean that an electronic accessory has 
been designed to connect specifically to 
iPod or iPhone, respectively, and has 
been certified by the developer to meet 
Apple performance standards. Apple is 
not responsible for the operation of this 
device or its compliance with safety and 
regulatory standards. Please note that 
the use of this accessory with iPod or 
iPhone may affect wireless 
performance.
Compatible iPod/iPhone models
The compatible iPod/iPhone models 
are as follows. Update your iPod/iPhone 
with the latest software before using 
with the system.
BLUETOOTH technology works with:
iPhone 6 Plus/iPhone 6/iPhone 5s/
iPhone 5c/iPhone 5/iPhone 4s/
iPhone 4/iPhone 3GS
iPod touch (5th generation)/iPod touch 
(4th generation)
“BRAVIA” logo is a trademark of Sony 
Corporation.
“DSEE” is a trademark of Sony 
Corporation.
“ClearAudio+” is a trademark of Sony 
Corporation.
“x.v.Color” and “x.v.Color” logo are 
trademarks of Sony Corporation.
“PlayStation
®
” is a registered trademark 
of Sony Computer Entertainment  Inc.
Other trademarks and trade names are 
those of their respective owners.
DTS and the Symbol together are 
registered trademarks of DTS, Inc. 
© DTS, Inc. All Rights Reserved.
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.
HT-CT380/CT381
3
1. 
SERVICING  NOTES 
 .............................................  
4
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   7
2-2. Cabinet 
Top 
Block 
..........................................................   8
2-3.  Loudspeaker (6 cm) (L-ch, R-ch) (SP1, SP2) .................   9
2-4.  NFC Module (NFC1) ......................................................   10
2-5. DISPLAY 
Board 
.............................................................  11
2-6. POWER 
Board 
................................................................  12
2-7.  Connection Cable with Speaker (L-ch, R-ch) 
(SPC1, SPC2) ..................................................................   13
2-8.  KEY Board Block ...........................................................   14
2-9.  Button, KEY Board .........................................................   15
2-10.  RF Modulator (RF1) .......................................................   16
2-11. MAIN Board ...................................................................   17
2-12.  Power Cord (AC1) ..........................................................   18
2-13.  Bluetooth Module (BT1) ................................................   19
2-14.  Chassis (Main) Block ......................................................   20
2-15. Service Position ..............................................................   21
3. 
TEST  MODE 
 ............................................................   22
4. TROUBLESHOOTING 
 ..........................................   27
5. DIAGRAMS
5-1.  Block Diagram - HDMI Section - ...................................   31
5-2.  Block Diagram - MAIN Section - ...................................   32
TABLE  OF  CONTENTS
5-3.  Block Diagram - AMP Section - .....................................   33
5-4. Block 
Diagram 
- PANEL/POWER SUPPLY Section - ............................   34
5-5.  Printed Wiring Boards - MAIN Section (1/2) - ..............   36
5-6.  Printed Wiring Board - MAIN Section (2/2) - ................   37
5-7.  Schematic Diagram - MAIN Section (1/6) - ...................   38
5-8.  Schematic Diagram - MAIN Section (2/6) - ...................   39
5-9.  Schematic Diagram - MAIN Section (3/6) - ...................   40
5-10.  Schematic Diagram - MAIN Section (4/6) - ...................   41
5-11.  Schematic Diagram - MAIN Section (5/6) - ...................   42
5-12.  Schematic Diagram - MAIN Section (6/6) - ...................   43
5-13.  Printed Wiring Board - DISPLAY Board - .....................   44
5-14.  Schematic Diagram - DISPLAY Board - ........................   45
5-15.  Printed Wiring Board - POWER Board - ........................   46
5-16.  Schematic Diagram - POWER Board - ..........................   47
6. 
EXPLODED  VIEWS
6-1. Overall 
Section 
...............................................................  57
6-2.  Top Cabinet Section ........................................................   58
6-3.  Bottom Cabinet Section ..................................................   59
6-4.  MAIN Board Section ......................................................   60
7. 
ELECTRICAL  PARTS  LIST 
 ..............................   61
Accessories are given in the last of the electrical parts list.
HT-CT380/CT381
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.
NOTE  OF  PERFORMING  THE  OPERATION  CHECK  IN  
THE  STATE  THAT  HEAT  SINK  WAS  REMOVED
When performing the operation check in the state that this unit was 
disassembled, it is possible to perform the operation check in the 
state that heat sink was removed. But don’t perform the operation 
check in the long time, and perform the operation check in the 
volume state as low as possible.
CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING 
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of capacitors to discharge the capaci-
tor as shown in the fi gure below.
Note 1: When the connector that connects the POWER board to the  MAIN 
board is disconnected before discharging, completely fi nish  dis-
charging both boards, and then reconnect the connector. If dis-
charging is not complete, sparking may occur when connecting the 
connector and cause a blown fuse.
Note 2: Be sure to discharge using a resistor of 800 Ω or higher.
 
    (Do not discharge with a 0 Ω resistor)
 
    Discharging at a point where excessive electric current fl ows 
through a fuse may cause the fuse to blow.
– MAIN Board (Side A) –
C3015
C3016
800 
:/2 W
800 
:/2 W
– POWER Board (Conductor Side) –
C967
800 
:/2 W
800 
:/2 W
C914 (US and Canadian models)
C915 (Except US and Canadian models)
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
MODEL  IDENTIFICATION
Distinguish by Part No. and destination code on the bottom side of the main unit.
– Bottom view –
MODEL LABEL
Part No.
Destination code
Model
Part No.
Destination code
SA-CT380: US, CND
4-559-882-0[]
UC2
SA-CT380: AEP
4-559-883-0[]
CEL/B
SA-CT380: EA3
4-564-730-0[]
EA3
SA-CT380: LA
4-564-731-0[]
LA9
SA-CT381: AEP
4-564-737-0[]
CEL/S
SA-CT381: UK
4-565-719-0[]
CEK/S
SA-CT380: UK
4-565-720-0[]
CEK/B
Ver. 1.2
Model
Part No.
Destination code
SA-CT380: PX
4-565-721-0[]
PX3
SA-CT380: SP
4-565-722-0[]
SP1
SA-CT380: TH
4-565-723-0[]
TH1
SA-CT380: RU
4-565-727-0[]
RU3
SA-CT380: AR
4-565-728-0[]
AR2
SA-CT380: E3
4-565-729-0[]
E3
SA-CT380: AUS
4-565-730-0[]
AU1
Page of 72
Display

Download Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual (Repair Manual)

Here you can view online or download Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Audio. Information contained in Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).