DOWNLOAD Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual ↓ Size: 5.12 MB | Pages: 72 in PDF or view online for FREE

Model
HT-CT380 HT-CT381 SA-CT380 SA-CT381
Pages
72
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5.12 MB
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PDF
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Service Manual
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Device
Audio
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ht-ct380-ht-ct381-sa-ct380-sa-ct381.pdf
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Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual ▷ View online

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
HT-CT380/CT381
5
DESTINATION  ABBREVIATIONS
The following abbreviations for model destinations are used in this 
service manual.
• Abbreviations
 AR  : 
Argentina 
model
 AUS : 
Australian 
model
  CND  : Canadian model
  E3 
: African and Iranian models
  EA3  : Saudi Arabia, UAE, Kuwait, Iraqi, Kenyan, Tanzanian and 
Nigerian models
  LA 
: Latin American model (Except for Brazilian and Argentina)
  RU 
: Russian model
  SP 
: Singapore model
 TH  : 
Thai 
model
ADVANCE  PREPARATION  WHEN  CONFIRMING  OP-
ERATION
All of the units included in the HT-CT380/CT381 (SA-CT380/
CT381, SA-WCT380/WCT381, Remote control) are required to 
confi rming operation of SA-CT380/CT381. Check in advance that 
you have all of the units.
NOTE  OF  REPLACING  THE  KEY  BOARD
When the KEY board is defective, replace the complete mounted 
board.
NOTE  OF  REPLACING  THE  IC1009,  IC1010,  IC1012,  
IC2008,  IC2009  AND  IC3109  ON  THE  MAIN  BOARD
IC1009, IC1010, IC1012, IC2008, IC2009 and IC3109 on the 
MAIN board cannot replace with single. When these parts are 
damaged, replace the complete mounted board.
NOTE  OF  REPLACING  THE  IC3001  ON  THE  MAIN  
BOARD  AND  THE  COMPLETE  MAIN  BOARD
When IC3001 on the MAIN board and the complete MAIN board 
are replaced, it is necessary to spread the compound between the 
MAIN board and the heat sink.
Spread the compound referring to the fi gure below.
– MAIN Board (Side A) –
IC3001
compound
NOTES  ON  THE  WIRELESS  CONNECTION (LINK)  AFTER  
REPAIRS  ARE  COMPLETE
When the parts below is replaced, the wireless connection (LINK) 
of the Bar speaker and Subwoofer will be disconnected.
Before returning repaired products to the customer, follow the pro-
cedure below to LINK the Bar speaker and Subwoofer.
Also, if only the Bar speaker or Subwoofer is brought in for repair 
and the parts below are replaced, be sure to inform the customer 
when returning the repaired products that the customer must LINK 
the Bar speaker and Subwoofer.
(Indicate that the LINK procedure is described in the operating 
instructions)
Parts in which the LINK will be disconnected due to re-
placement:
• 
Complete MAIN board
• 
IC1002 on the MAIN board (microprocessor)
• 
RF modulator (SWA12-4V TX) (Ref. No. RF1)
Linking the system (Link to the Subwoofer)
Set up the wireless subwoofer 
connection again.
1
Press MENU.
2
Select [WS] with j „ (select), then 
press ENTER.
3
Select [LINK] with j „ (select), then 
press ENTER.
4
When [START] appears on the 
display, press ENTER.
[SEARCH] appears, and the Bar 
Speaker searches for a device that 
can be used with Link. Proceed to 
the next step within 1 minute.
To quit the Link function while 
searching for a device, press BACK.
5
Press LINK on the subwoofer.
The on/standby indicator on the 
subwoofer lights up in green. [OK] 
appears on the display of the Bar 
Speaker.
If [FAILED] appears, check to ensure 
the subwoofer is turned on and 
perform the process again from 
step 1.
6
Press MENU.
The menu turns off.
IF  “PRTECT (PROTECT)”  APPEARS  ON  THE  FRONT  
PANEL  DISPLAY  OF  THE  BAR  SPEAKER
‚ Press the Ò/Æ (on/standby) button 
on the Bar Speaker to turn off the 
system. After the display stops 
flashing, disconnect the AC power 
cord (mains lead) then check that 
nothing is blocking the ventilation 
holes of the Bar Speaker.
Ver. 1.2
Page of 72
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Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual ▷ Download

  • DOWNLOAD Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual ↓ Size: 5.12 MB | Pages: 72 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 in PDF for free, which will help you to disassemble, recover, fix 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) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.