Sony HT-NT3 User manual

SERVICE MANUAL
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
HT-NT3
SA-NT3
SPECIFICATIONS
HT-NT3
SOUND BAR
SA-NT3
ACTIVE SPEAKER SYSTEM
9-890-666-02
2015E81-1
© 2015.05
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Ver. 1.1 2015.05
• All of the units included in the HT-NT3 (SA-NT3/SA-
WNT3) are required to confirming operation of SA-NT3.
Check in advance that you have all of the units.
COMPONENT MODEL NAME
HT-NT3
Bar Speaker (Active Speaker System) SA-NT3
Subwoofer (Active Subwoofer) SA-WNT3
– Continued on next page –
Photo: SA-NT3
Amplifier section
US model only:
POWER OUTPUTAND TOTAL HARMONIC
DISTORTION:
(FTC)
Front L + Front R:
With 4 ohms loads, both channels driven, from
300 Hz – 20,000 Hz; rated 50 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:
133 W (per channel at 4 ohms, 1 kHz)
Except US model:
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:
133 W (per channel at 4 ohms, 1 kHz)
Inputs
HDMI IN 1*/2/3
TV (DIGITAL IN)
ANALOG IN
Output
HDMI OUT* (ARC)
* HDMI IN 1 and HDMI OUT jacks support HDCP2.2
protocol. HDCP 2.2 is newly enhanced copyright
protection technology that is used to protect content
such as 4K movies.
HDMI section
Connector
Type A (19pin)
USB section
(USB) port:
Type A (For connecting USB memory, memory
card reader, and digital still camera)
LAN section
LAN (100) terminal
100BASE-TX Terminal
Wireless LAN section
Standards Compliance
IEEE 802.11 a/b/g/n
Frequency band
2.4 GHz, 5 GHz
BLUETOOTH section
Communication system
BLUETOOTH Specification version 3.0
Output
BLUETOOTH Specification Power Class 1
Maximum communication range
Line of sight approx. 30 m (98.4 ft)1)
Frequency band
2.4 GHz
Modulation method
FHSS (Freq Hopping Spread Spectrum)
Compatible BLUETOOTH profiles2)
A2DP 1.2 (Advanced Audio Distribution Profile)
AVRCP 1.5 (Audio Video Remote Control Profile)
Supported Codecs3)
SBC4), AAC, LDAC
Transmission range (A2DP)
20 Hz – 20,000 Hz (Sampling frequency 44.1 kHz,
48 kHz, 88.2 kHz, 96 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, antenna’s performance, 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
Front L/Front R speaker section
Speaker system
2-way speaker system, Acoustic suspension

HT-NT3
2
Speaker
Woofer: 65 mm (2 5/8 in) cone type, magnetic fluid speaker ×2
Tweeter: 18 mm (23/32 in) dome type ×2
General
Power requirements
LA9 model only:
110 V – 240 V AC, 50/60 Hz
US, CND, TW models only:
120 VAC, 60 Hz
EA model only:
127 V – 240 V AC, 50/60 Hz
Except LA9, US, CND, TW, EA models:
220 V – 240 V AC, 50/60 Hz
Power consumption
On: 55 W
Standby:
0.3 W
5.5 W (EXCEPT US, CND, LA9)
Dimensions (w/h/d) (approx.)
1,070 mm × 86 mm × 65 mm.
(42 1/4 in × 3 1/2 in × 2 5/8 in) incl.
projecting parts
Mass (approx.)
3.1 kg (6 lb 14oz)
Wireless transmitter section
Communication system
Wireless Sound Specification version 3.0
Frequency band
US, CND, AEP, UK, AUS, EA, E3 models only: 5.2 GHz, 5.8 GHz
SP, TW, LA9 models only: 5.8 GHz
RU model only: 5.2 GHz
* 5.2 GHz or 5.8 GHz may not be available in some countries/regions.
Modulation method
DSSS
Video formats supported by the system
Input/Output (HDMI Repeater block)
Format 2D 3D
Frame
packing Side-by-Side (Half) Over-Under (Top-and-Bottom)
4096 × 2160p @ 59.94/60 Hz*1 a–– –
4096 × 2160p @ 50 Hz*1 a–– –
4096 × 2160p @ 23.98/24 Hz*2 a–– –
3840 × 2160p @ 59.94/60 Hz*1 a–– –
3840 × 2160p @ 50 Hz*1 a–– –
3840 × 2160p @ 29.97/30 Hz*2 a–– –
3840 × 2160p @ 25 Hz*2 a–– –
3840 × 2160p @ 23.98/24 Hz*2 a–– –
1920 × 1080p @ 59.94/60 Hz a–aa
1920 × 1080p @ 50 Hz a–aa
1920 × 1080p @ 29.97/30 Hz aa a a
1920 × 1080p @ 25 Hz aa a a
1920 × 1080p @ 23.98/24 Hz aa a a
1920 × 1080i @ 59.94/60 Hz aa a a
1920 × 1080i @ 50 Hz aa a a
1280 × 720p @ 59.94/60 Hz aa a a
1280 × 720p @ 50 Hz aa a a
1280 × 720p @ 29.97/30 Hz aa a a
1280 × 720p @ 23.98/24 Hz aa a a
720 × 480p @ 59.94/60 Hz a–– –
720 × 576p @ 50 Hz a–– –
640 × 480p @ 59.94/60 Hz a–– –
*1 YCbCr 4:2:0/Supported 8-bit only
*2 Supported 8-bit only
Supplied accessories
Remote control (1)
R03 (size AAA) batteries (2)
High Speed HDMI cable (1) (EXCEPTAEP, UK)
Optical digital cable (1) (AEP, UK)
Stands (2)
AC plug adaptor (2) (LA9)
Design and specifications are subject to change without notice.
• Abbreviation
AUS : Australian model
CND : Canadian model
E3 : 240V AC area in E model
EA : Saudi Arabia model
LA9 : Latin-American model
RU : Russian model
SP : Singapore model
TW : Taiwan model
Copyrights and Trademarks
• 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, & DTS and the Symbol together are registered trademarks of DTS,
Inc. © DTS, Inc. All Rights Reserved.
• 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.
• “BRAVIA” is a trademark of Sony Corporation.
• “PlayStation” is a registered trademark of Sony Computer Entertainment Inc.
• Wi-Fi®, Wi-Fi Protected Access®, Wi-Fi Alliance®and Wi-Fi CERTIFIED
Miracast®are registered trademarks of Wi-Fi Alliance®.
• Wi-Fi CERTIFIED™, WPA™, WPA2™, Wi-Fi Protected Setup™ and Miracast™
are trademarks of Wi-Fi Alliance®.
• The N Mark is a trademark or registered trademark of NFC Forum, Inc. in the
United States and in other countries.
• Android™ is a trademark of Google Inc.
• Google Play™ is a trademark of Google Inc.
• Google Cast™ is a trademark of Google Inc.
• Google Cast™ Ready and the Google Cast Ready badge are trademarks of Google
Inc.
• “Xperia” is a trademark of Sony Mobile Communications AB.
• 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. Other trademarks and trade names are those of their respective owners.
• LDAC™ and LDAC logo are trademarks of Sony Corporation.
• “DSEE HX” is a trademark of Sony Corporation.
• MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS
and Thomson.
• Windows Media is either a registered trademark or trademark of Microsoft
Corporation in the United States and/or other countries.
This product is protected by certain intellectual property rights of Microsoft
Corporation. Use or distribution of such technology outside of this product is
prohibited without a license from Microsoft or an authorized Microsoft subsidiary.
• Opera®Devices SDK from Opera Software ASA. Copyright 1995-2013 Opera
Software ASA. All rights reserved.
• “ClearAudio+” is a trademark of Sony Corporation.
• “x.v.Colour” and “x.v.Colour” logo are trademarks of Sony Corporation.
• Apple, the Apple logo, iPhone, iPod, iPod touch, and Retina 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
iPhone 6 Plus/iPhone 6/iPhone 5s/iPhone 5c/iPhone 5/iPhone 4s/iPhone 4/
iPhone 3GS
– iPod touch
iPod touch (5th generation)/iPod touch (4th generation)
• All other trademarks are trademarks of their respective owners.
• Other system and product names are generally trademarks or registered trademarks
of the manufacturers. ™ and ® marks are not indicated in this document.
Notice on GNU GPL/LGPL applied software and other Open Source
Softwares
This product contains software that is subject to the GNU General Public License
(“GPL”) or GNU Lesser General Public License (“LGPL”). These establish that
customers have the right to acquire, modify, and redistribute the source code of said
software in accordance with the terms of the GPL or the LGPL.
For details of the GPL, LGPL and other software licenses, please refer to [Software
License Information] in [System Settings] of the [Setup] menu on the product.
The source code for the software used in this product is subject to the GPLand LGPL,
and is available on the Web. To download, please access the following:
URL:
http://oss.sony.net/Products/Linux
Please note that Sony cannot answer or respond to any inquiries regarding the content
of this source code.
Ver. 1.1

HT-NT3
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. Acommercial 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-operatedAC 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 VAC range are suitable. (See
Fig. A)
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.

HT-NT3
4
1. SERVICING NOTES ............................................. 5
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 9
2-2. Front Panel (Left, Right, Center) Section-1.................... 10
2-3. Front Panel (Left, Right, Center) Section-2.................... 11
2-4. CARD WLAN/BT COMBO........................................... 12
2-5. KEY Board, IR TXL Board, IR TXR Board, WS CHUKEI
Board, RC-S730 (WW)................................................... 13
2-6. Loudspeaker (6 cm)-080-12 (L-ch, R-ch),
Mounted Board (Left, Right).......................................... 14
2-7. Power Cord, MB-1407 Board Section............................ 15
2-8. Switching Regulator (3L405W), AUDIO IO Board....... 16
2-9. AMP Board..................................................................... 17
2-10. MB-1407 Board.............................................................. 18
3. TEST MODE ............................................................ 19
4. TROUBLESHOOTING .......................................... 27
5. DIAGRAMS
5-1. Block Diagram - HDMI/USB/NETWORK Section -..... 28
5-2. Block Diagram - MEMORY/AUDIO/AMP Section -.... 29
5-3. Block Diagram - PANEL/POWER SUPPLY Section - .. 30
5-4. Printed Wiring Board - MB-1407 Board
(suffix 12 (EXCEPTAEP, UK, RU, AUS)) -.................. 32
5-5. Printed Wiring Board - MB-1407 Board
(suffix 23 (AEP, UK, RU, AUS)) - ................................. 33
5-6. Schematic Diagram - MB-1407 Board (1/12) -.............. 34
5-7. Schematic Diagram - MB-1407 Board (2/12) -.............. 35
5-8. Schematic Diagram - MB-1407 Board (3/12) -.............. 36
5-9. Schematic Diagram - MB-1407 Board (4/12) -.............. 37
5-10. Schematic Diagram - MB-1407 Board (5/12) -.............. 38
TABLE OF CONTENTS
5-11. Schematic Diagram - MB-1407 Board (6/12) -.............. 39
5-12. Schematic Diagram - MB-1407 Board (7/12) -.............. 40
5-13. Schematic Diagram - MB-1407 Board (8/12) -.............. 41
5-14. Schematic Diagram - MB-1407 Board (9/12) -.............. 42
5-15. Schematic Diagram - MB-1407 Board (10/12) -............ 43
5-16. Schematic Diagram - MB-1407 Board (11/12) -............ 44
5-17. Schematic Diagram - MB-1407 Board (12/12) -............ 45
5-18. Printed Wiring Board - AMP Board - ............................. 46
5-19. Schematic Diagram - AMP Board -................................ 47
5-20. Printed Wiring Board - AUDIO IO Board -.................... 48
5-21. Schematic Diagram - AUDIO IO Board - ...................... 48
5-22. Printed Wiring Board - WS CHUKEI Board -................ 49
5-23. Schematic Diagram - WS CHUKEI Board -.................. 49
5-24. Printed Wiring Board - OLED CHUKEI Board -........... 50
5-25. Schematic Diagram - OLED CHUKEI Board -.............. 50
5-26. Printed Wiring Board - IR TXL Board -......................... 51
5-27. Schematic Diagram - IR TXL Board -............................ 51
5-28. Printed Wiring Board - IR TXR Board -......................... 51
5-29. Schematic Diagram - IR TXR Board - ........................... 51
5-30. Printed Wiring Board - KEY Board -.............................. 52
5-31. Schematic Diagram - KEY Board - ................................ 52
6. EXPLODED VIEWS
6-1. Overall Section ............................................................... 78
6-2. Front Panel Section......................................................... 79
6-3. Cabinet Section 1............................................................ 80
6-4. Cabinet Section 2............................................................ 81
6-5. MB-1407 Board Section................................................. 82
7. ELECTRICAL PARTS LIST .............................. 83
Accessories are given in the last of the electrical parts list.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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 0SUR
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.
Ver. 1.1

HT-NT3
5
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 flow)
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.
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
All of the units included in the HT-NT3 (SA-NT3/SA-WNT3) are
required to confirming operation of SA-NT3. Check in advance
that you have all of the units.
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.
NOTE OF REPLACING THE IC101, IC102, IC103,
IC301, IC302, IC303, IC410, IC3004 AND IC5010 ON
THE MB-1407 BOARD
IC101, IC102, IC103, IC301, IC302, IC303, IC410, IC3004 and
IC5010 on the MB-1407 board cannot replace with single. When
these parts are damaged, replace the complete mounted board.
NOTE OF REPLACING THE IC1501 ON THE WS
CHUKEI BOARD
IC1501 on the WS CHUKEI board cannot replace with single.
When this part is damaged, replace the complete mounted board.
NOTE OF REPLACING THE IC102 AND IC103 ON
THE MB-1407 BOARD
Replacement of IC102 and IC103 on the MB-1407 board used in
this unit requires a special tool.
“PRTECT (PROTECT)” APPEARS ON THE DISPLAY OF
THE BAR SPEAKER
qPress the ÒÄÆ (on/standby) button to turn off the system. After the
indicator disappears, disconnect the AC power cord (mains lead)
then check that nothing is blocking the ventilation holes of the
system.
NOTE OF REPLACING THE IC6001 ON THE AMP
BOARD AND THE COMPLETE AMP BOARD
When IC6001 on theAMP board and the completeAMP board are
replaced, it is necessary to spread the compound between theAMP
board and the heat sink.
Spread the compound (THERMAL COMPOUND (G747)) refer-
ring to the figure below.
– AMP Board (Component Side) –
IC6001
thermal compound (G747)
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C201 and
C207) to discharge the capacitor (C201 and C207).
– SWITCHING REGULATOR (3L405W) Board
(Conductor Side) –
C207
C201
800 :/2 W 800 :/2 W
BOND FIXATION OF ELECTRIC PARTS
When SWITCHING REGULATOR (3L405W) board or AMP
board is replaced or the following object parts are replaced, it is
necessary to fix parts to the boards by using a specified bond with-
out fail.
• Object boards
SWITCHING REGULATOR (3L405W) board
Complete AMP board
• Object parts
Board Ref. No.
SWITCHING
REGULATOR
(3L405W)
C101, C102, C103, C201, C207, C211,
C402, C408, C461, C465, L101, L102,
L401, NR101, R208, T201
AMP C6078, C6079, L6007, L6008
• Use bond
Part No. Description
7-600-020-70 ADHESIVE (SC608Z2) 180ML

HT-NT3
6
• Parts position
1. SWITCHING REGULATOR (3L405W) board (page 6)
2. AMP board (page 6)
1. SWITCHING REGULATOR (3L405W) board
– SWITCHING REGULATOR (3L405W) Board
(EXCEPT AEP, UK, RU, AUS) (Component Side) –
*The portion which applies bond:
L401 C402 T201
T201
C211C207
C201
C101
C102
C103
NR101
R208
– SWITCHING REGULATOR (3L405W) Board
(AEP, UK, RU, AUS) (Component Side) –
*The portion which applies bond:
T201C211R208
C207C101
C201NR101
L401
C408 C461 L102 C103
C465 C402 T201 L101 C102
2. AMP board
– AMP Board (Component Side) –
*The portion which applies bond:
L6007
L6008
C6078
C6079
Ver. 1.1

HT-NT3
7
MODEL IDENTIFICATION
Distinguish by Part No. on the rear side of a main unit.
– Rear view –
Part No.
Model Part No.
US, CND 4-558-893-1[]
AEP 4-558-893-3[]
UK 4-558-893-4[]
RU 4-558-893-5[]
E3 4-558-893-6[]
EA 4-558-893-7[]
SP 4-558-893-8[]
AUS 4-558-894-0[]
TW 4-558-894-2[]
LA9 4-558-894-6[]
SERVICE POSITION
panel, front (right)
panel, front (left)
REGULATOR, SWITCHING (3L405W)
MOUNTED PWB (left)
IR TXL board
IR TXR board
RC-S730 (WW)
RF MODULATOR
(WS001)
KEY board
CARD WLAN/BT COMBO
OLED CHUKEI board
MOUNTED PWB (right)
AMP board
AUDIO IO board
WS CHUKEI board
MB-1407 board
Ver. 1.1
• Abbreviation
AUS : Australian model
CND : Canadian model
E3 : 240V AC area in E model
EA : Saudi Arabia model
LA9 : Latin-American model
RU : Russian model
SP : Singapore model
TW : Taiwan model

HT-NT3
8
NOTE OF REPLACING THE COMPLETE MB-1407
BOARD OR CARD WLAN/BT COMBO
When the complete MB-1407 board or CARD WLAN/BT COM-
BO are replaced, please execute the below service mode.
Procedure:
[Home menu → Setup → Resetting → Reset to Factory Default
Settings → All Settings]
Next, go to service menu and execute “[1] Bluetooth Enable” and
“[3] Write Bluetooth device address to Registry”.
Finally check one touch NFC listening function at normal power
on.
Note: The operation in this mode must use a remote commander
and TV monitor.
1. Connect this unit with TV monitor.
2. Press the [?/1] button to turn the power on.
3. Press button in order of the [
x
] → [DISPLAY] →[X] →[ M ] on
the remote commander.
(Make the interval when each button is pressed within two
seconds)
4. Enter the SVC service mode. The OSD menu on TV monitor
can be operated by remote commander.
5. Press [m] and Enter Diag.
6. Press [,] and Enter Bluetooth Device Test (Screen 1).
7. Enter [1] Bluetooth Enable, wait until the display show
“ Status : Bluetooth Enable Successful ” (Screen 2).
8. Enter [3] Write Bluetooth device address to Registry, wait until
the display show “Bluetooth Device Address” and “Status :
Write Successfull” (Screen 3).
9. Press the [RETURN] button on the remote commander to
select “Wireless LAN Test”. (Screen 4)
10. Press the [ ] button on the remote commander to select
“[5] Write P2P address to Registry”.
11. Press the [ ] button on the remote commander, wait until the
display show “Status: Write Successful!” (Screen 5).
12. Press the [m] button on the remote commander to select
“[6] P2P Registry Check”.
13. Press the [ ] button on the remote commander to check the
P2P devise address is the same as shown in Screen 5.
(Displayed chracters/values in the following figure are ex-
ample)
14. Press the [BACK] button on the remote commander and
select Factory Initialize. (go to Screen 7)
15. The set will turn off automatically.
Diag
Category: Bluetooth Device Test
Diag
Category: Bluetooth Device Test
[1] Bluetooth Enable
[2] Bluetooth Disable
[3] Write Bluetooth device address to Registry
[4] Bluetooth Inquiry Test
Status : Bluetooth Enable Successful!
HELP: [UP][DOWN][ENT][RET]
(Screen 1)
(Screen 2)
NOTE OF REPLACING THE CARD WLAN/BT COMBO
When the CARD WLAN/BT COMBO is exchanged, the MAC
address has been changed.
Please print and cut out the following explanations, and return it
with the unit that complete the repair.
MAC address of this receiver has been changed by
this repair.
The customer who use the MAC address filtering
function of connected access point equipment please
set it again.
MAC address is possible to confirm on the System
Information screen of this unit.
Please refer to “Settings and Adjustments” --->
“System Settings” ---> “System Information” on the
Instruction Manual for details.
Please check the basic operation for wired LAN, Wireless
LAN and USB after the repair completed.
NOTE OF DELETING THE PRODUCT REGISTRATION
ON SEN (INTERNET MUSIC SERVICES)
It is needed to delete the product registration on SEN (Internet
Music Services) by checking the “Device ID” which have 12 digits
hexadecimal number. The procedure of checking “Device ID” can
be followed as below:
1. Press [HOME] button of the remote commander, the message
“HOME” appears.
2. Select “Setup” and press [ ] button.
3. Select “System Settings” and press [ ] button .
4. Select “System Information” and press [ ] button.
5. Device ID will shown on the display.
Device ID: XXXX XXXX XXXX (12 digits hexadecimal
number).
If it is needed to delete the customer’s registration, please contact
the Service Headquarter with Device ID information.

HT-NT3
9
Diag
Category: Wireless LAN Test
Diag
Category: Wireless LAN Test
[1] Show WLAN HwInfo
[2] Connect to AccessPoint
[3] Start Display RSSI Value
[4] Start Ping Test
[5] Write P2P address to Registry
[6] P2P Registry Check
P2P device address : xx:xx:xx:xx:xx:xx
Status : Write Successful!
Status : Write Fail!
Diag
Category: Wireless LAN Test
[1] Show WLAN HwInfo
[2] Connect to AccessPoint
[3] Start Display RSSI Value
[4] Start Ping Test
[5] Write P2P address to Registry
[6] P2P Registry Check
P2P device address : xx:xx:xx:xx:xx:xx
HELP: [UP][DOWN][ENT][RET]
(Screen 4)
(Screen 5)
(Screen 6)
(Screen 7)
(Screen 3)
Diag
Category: Bluetooth Device Test
[1] Bluetooth Enable
[2] Bluetooth Disable
[3] Write Bluetooth device address to Registry
[4] Bluetooth Inquiry Test
Bluetooth device address : 00:01:36:23:FD:CF
Status : Write Successful!
HELP: [UP][DOWN][ENT][RET]
* Service Mode Menu
[1] Diag
[2] Log
[4] Network --> Not Support In This Model
[5] Version Up
[6] System InformaƟon
[7] EMC Test Mode
[8] Drive --> Not Support In This Model
[9] HDD mode
[10] RF Test Mode
HELP: [DOWN][ENT]
[3] Factory Initialize

HT-NT3
10
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SET
2-4. CARD WLAN/BT COMBO
(Page 13)
2-5. KEY BOARD, IR TXL BOARD, IR TXR BOARD, WS CHUKEI BOARD, RC-S730 (WW)
(Page 14)
2-7. POWER CORD, MB-1407 BOARD SECTION
(Page 16)
2-8. SWITCHING REGULATOR (3L405W),
AUDIO IO BOARD
(Page 17)
2-9. AMP BOARD
(Page 18)
2-10. MB-1407 BOARD
(Page 19)
2-6. LOUNDSPEAKER (6.5 cm)-080-12 (L-CH, R-CH),
MOUNTED BOARD (LEFT, RIGHT)
(Page 15)
2-2. FRONT PANEL (LEFT, RIGHT, CENTER) SECTION-1
(Page 11)
2-3. FRONT PANEL (LEFT, RIGHT, CENTER) SECTION-2
(Page 12)

HT-NT3
11
Note: Follow the disassembly procedure in the numerical order given.
2-2. FRONT PANEL (LEFT, RIGHT, CENTER) SECTION-1
• Continued on next page.
1six screws ((+) P TAPPING SCREW 3.5)
1two screws ((+) P TAPPING SCREW 3.5)
1six screws
((+) P TAPPING SCREW 3.5)
2 four screws (+BVTP 3 x 8)
3
– Bottom view –
– Rear view –

HT-NT3
12
2-3. FRONT PANEL (LEFT, RIGHT, CENTER) SECTION-2
1frame, grille assy
2four catcher, rubber
9two catcher, rubber
9two catcher, rubber
3four screws
((+) P TAPPING
SCREW 3.5)
0two screws (+BVTP 3 x 8)
qa two screws
((+) P TAPPING
SCREW 3.5)
5terminal (wide side)
4hemilon, 45X25X0.45
5terminal (narrow side)
6panel, front (left)
7wire (flat type) (14 core) (CN3004)
8panel, front (center)
qs wire (flat type)
(26 core) (CN1502)
qf terminal
(wide side)
qg panel, front (right)
qf terminal
(narrow side)
qd hemilon,
45X25X0.45
(wide side) (narrow side)
:LUHVHWWLQJ
:LUHVHWWLQJ
top side
(wide side)
(narrow side)
top side
70mm±5mm
35mm±5mm
50mm±5mm
65mm±5mm

HT-NT3
13
2-4. CARD WLAN/BT COMBO
:LUHVHWWLQJ top side
cushion, seal
acoustic tape cushion, seal
cushion, seal
:LUHVHWWLQJ top side
A
A
4CN502 (5P)
1cushion, seal
5one screw (+BVTP 3 x 8)
6one screw (+BVTP 3 x 8)
8CARD WLAN/BT COMBO
3acoustic tape
7cushion, seal
2acoustic tape
7cushion, seal
–%RWWRPYLHZ–

HT-NT3
14
2-5. KEY BOARD, IR TXL BOARD, IR TXR BOARD, WS CHUKEI BOARD, RC-S730 (WW)
:LUHVHWWLQJ top side
:LUHVHWWLQJ top side
Note: Make sure both wires do not contact to each other after paste the acoustic tape.
qh windows,
IR (rear)
wa cushion, seal
qg one screw
(+BVTP 3 x 8)
qj IR TXR board
1CN3003 (9P)
3three screws
(+BVTP 3 x 8)
4two screws
(+BVTP 3 x 8)
8one screw
(+BVTP 3 x 8)
0IR TXL board
7acoustic, absorbent
6KEY board
5button
9windows, IR (rear)
–%RWWRPYLHZ–
wg two screws
(+BVTP 3 x 8)
wh WS CHUKEI board
qf acoustic, absorbent
w; filter, clamp
(ferrite core)
wj Peel off the
tape, NFC
wk RC-S730 (WW)
wf CN1561 (6P)
qd cushion,
seal
ws CN501(5P)
qk CN3005 (6P)
wd CN706
(11P)
2cushion, seal
cushion, seal
A
A
B
B
cushion, sealacoustic tape
cushion, seal cushion, seal
qs acoustic tape
qa cushion, seal
$(38.58$86
ql cushion, seal
$(38.58$86
• Abbreviation
AUS :
Australian model
RU : Russian model
Ver. 1.1

HT-NT3
15
2-6. LOUDSPEAKER (6.5 cm)-080-12 (L-CH, R-CH), MOUNTED BOARD (LEFT, RIGHT)
:LUHVHWWLQJ
top side
(narrow side)
(wide side)
loudspeaker (6.5 cm)-080-12 (L-CH)
:LUHVHWWLQJ top side
(narrow side) (wide side)
:LUHVHWWLQJ
top side
(narrow side)
(wide side)
loudspeaker (6.5 cm)-080-12 (R-CH)
MOUNTED PWB
(left)
:LUHVHWWLQJ
top side
(narrow side) (wide side)
MOUNTED PWB
(right)
2loudspeaker (6.5 cm)-080-12
(L-CH)
1terminal (narrow side)
1terminal (wide side)
3terminal (wide side)
3terminal (narrow side)
4two screws (+BVTP 3 x 8)
5MOUNTED PWB (left)
2loudspeaker (6.5 cm)-080-12 (R-CH)
1terminal (wide side)
1terminal (narrow side)
3terminal
(narrow side)
3terminal
(wide side)
5MOUNTED PWB (right)
4two screws (+BVTP 3 x 8)
–%RWWRPYLHZ–
6one screw (+BVTP 3 x 8)
7holder, wire

HT-NT3
16
2-7. POWER CORD, MB-1407 BOARD SECTION
1Remove the MB-1407 board
section in the direction of the arrow.
4Remove the bushing (FBS001), cord
in the direction of the arrow.
2Remove the cord, power
from stopper, wiring
5two claws
6bushing (FBS001), cord
3CN1 (2P)
7Draw out the cord, power from the hole.
8cord, power
9MB-1407 board section – Rear view –
REGULATOR, SWITCHING (3L405W)
top side
:ire VeWWiQJ
stopper, wiring

HT-NT3
17
2-8. SWITCHING REGULATOR (3L405W), AUDIO IO BOARD
:LUHVHWWLQJ
top side
:LUHVHWWLQJ
AUDIO IO board
acoustic tape
cushion, saranet
top side
AMP boardstopper, wiring
REGULATOR, SWITCHING
(3L405W)
1CN101
(9P)
3stopper, wiring
4stopper, wiring
5REGULATOR,
SWITCHING
(3L405W)
8wire (flat type)
(9 core) (CN705)
2four screws (+BVTP 3 x 8)
7cushion, saranet
6acoustic tape
9two screws (+BVTP 3 x 8)
0one screw (+BVTP 3 x 8)
qa AUDIO IO board

HT-NT3
18
2-9. AMP BOARD
:LUHVHWWLQJ
:LUHVHWWLQJ
top side
stopper, wiring
AMP board
top side AMP board
stopper, wiring
4heat sink, AMP
Note: When you install the heat sink, AMP
spread the compound referring to “NOTE
OF REPLACING THE IC6001 ON THE
AMP BOARD AND THE COMPLETE
AMP BOARD” on page 5.
qa stopper, wiring
0stopper, wiring
IC6001 qs AMP board
5CN6001 (5P) 6CN6002 (4P)
8wire (flat type) (24 core) (CN6004)
7CN6007 (4P)
2wire holder PWB
1one screw (+BVTP 3 x 8)
9four screws (+BVTP 3 x 8)
3two screws (+BVTP 3 x 10)

HT-NT3
19
2-10. MB-1407 BOARD
A
A
3two screws (+BVTP 3 x 8)
4heat sink, MB
6shield, MB
2sheet, copper
1cushion tw-side
7three screws (+B 3 x 5)
8two screws (+B 3 x 5)
9MB-1407 board
5six screws (+BVTP 3 x 8)
(AEP, UK, RU, AUS)
(AEP, UK, RU, AUS)
(AEP, UK, RU, AUS)
• Abbreviation
AUS :
Australian model
RU : Russian model
Ver. 1.1

HT-NT3
20
SECTION 3
TEST MODE
COLD RESET
The cold reset clears certain data in this system without initialize
Personal Information and some operation data.
Execute this mode when returning the unit to the customers.
Procedure:
1. Press the [?/1] button on the main unit to turn the power on.
2. Press the [?/1] button and [VOL -] button on the main unit
simultaneously for five seconds.
3. The message “WAIT” appears and then “RESET” appears on
the fluorescent indicator tube, then becomes standby states.
PANEL TEST
Procedure:
1. Press the [?/1] button on the main unit to turn the power on.
2. Press button in order of the [x] → [DISPLAY] → [m] → [M]
on the remote commander.
(Make the interval when each button is pressed within two sec-
onds).
3. All segments in fluorescent indicator tube are lighted up and
then is dimmed after a second.
4. In the state of step 3, press the [INPUT +] button on the remote
commander and “K 0” is displayed on the fluorescent indicator
tube.
5. In the state of step 4, press the [VOL +] button on the remote
commander and “SZ_A” is displayed on the fluorescent indi-
cator tube.
6. In the state of step 5, press the [VOL -] button on the remote
commander and all segments in fluorescent indicator tube are
lighted up and then is dimmed after a second.
7. In the state of step 6, press the [x] button on the remote com-
mander and “1 24” is displayed on the fluorescent indicator
tube.
Releasing method:
To release from this mode, press the [?/1] button on the main unit
or press the [?/1] button on the remote commander.
AMP TEST
Procedure:
1. Touch the [?/1] touch key on the main unit to turn the power
on.
2. Press button in order of the [x] → [DISPLAY] → [VOL -] →
[M] on the remote commander.
The messsage “MSURE” is displayed on the fluorescent indi-
cator tube.
3. In the state of step 2, press [DIMMER] button on the remote
commander.
The message will appear in order of the “FULL” →“THRU”
→“F2S” →“F2SB” →“F2CW” on the fluorescent indicator
tube.
4. In the state of step 3, press [m] button on the remote com-
mander.
The message will appear in order of the “A.OFF” →“A.ON”
on the fluorescent indicator tube.
5. In the state of step 4, press [%] button on the remote com-
mander.
The message will appear in order of the “V.N” →“V.MSM” on
the fluorescent indicator tube.
6. In the state of step 5, press [CLEARAUDIO+] button on the
remote commander.
The message will appear in order of the “VAON” →“VAOFF”
on the fluorescent indicator tube.
7. In the state of step 6, press [VOICE] button on the remote com-
mander to adjust the volume gain.
It can be adjusted between -3.0 to +3.0 (increase everytime 0.1
step).
Eg: When gain +1.0 dB by pressing the [VOICE] button, the
message “G +1.0” will appear on the fluorescent indicator
tube.
8. In the state of step 7, press [NIGHT] button on the remote
commander to adjust the volume gain.
It can be adjusted between +3.0 to -3.0 (decrease everytime 0.1
step).
Eg: When gain -1.0 dB by pressing the [NIGHT] button, the
message “G -1.0” will appear on the fluorescent indicator tube.
WIRELESS SOUND TEST MODE
It can display the μ-com version of Subwoofer (SA-WNT3).
Note :More than one item may be displayed on the fluorescent indicator
tube, but it is not used for the servicing other than “VER”.
Preparation:
•Prepare the remote commander attached to this unit.
Remote commander:
RM-AH110U (US and Canadian models)
RM-AH110E (Except US and Canadian models)
•Connect the Bar Speaker (SA-NT3) and the Subwoofer (SA-WNT3)
by wireless.
Procedure:
1. Press button in order of the [x] → [DISPLAY] → [CLEAR
AUDIO+] → [M] on the remote commander.
2. The message “FACTR” is displayed on the fluorescent indica-
tor tube and enter the wireless sound test mode.
3. Press the [M]/[m] buttons on the remote commander, select the
“VER”, and press the [ ] button on the remote commander.
4. The μ-com version of Subwoofer (SA-WNT3) is displayed on
the fluorescent indicator tube. For example, 0.12A.
5. When [M]/[m] buttons on the remote commander is pressed
while the μ-com version of Subwoofer (SA-WNT3) is dis-
played on the fluorescent indicator tube, year, month and day
of the creation is displayed on the fluorescent indicator tube.
For example, 41027.
When [M]/[m] buttons on the remote commander is pressed
again, the display returns to the μ-com version of Subwoofer
(SA-WNT3) display.
Releasing method:
Press the [?/1] button to release the test mode menu.