Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.
1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.
WARNING
1-1-2. Servicing the LED TV
When servicing the LED TV, Disconnect the AC line cord from the AC outlet.1.
It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of this 2.
meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks:
Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the 1.
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and 2.
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check:3.
Disconnect the AC power and DC power jack before servicing.
(READING SHOULD)
DEVICE
UNDER
TEST
ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
NOT BE ABOVE 0.5mA
2-WIRE CORD
TEST ALL
EXPOSED METAL
SURFACES
LEAKAGE
CURRENT
TESTER
EARTH
GROUND
Do not use an isolation transformer during this test.
Use a leakage current tester or a metering system that complies with American National Standards
WARNING
Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL
Publication UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch rst 4.
in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.)
and all exposed metal parts, including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat the test.
1-1
Page 28
1-2
1. Precautions
1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual
inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,
wattage, etc. Parts that have special safety characteristics are identied by
replacement that does not have the same safety characteristics as the recommended replacement part might create
shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
on schematics and parts lists. A substitute
Page 29
1-3
1. Precautions
1-2. Servicing Precautions
An electrolytic capacitor installed with the wrong polarity might explode.
WARNING
Before servicing units covered by this service manual, read and follow the Safety Precautions section of
CAUTION
NOTE
1-2-1. General Servicing Precautions
Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before 1.
attempting to: (a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect
a test component in parallel with an electrolytic capacitor.
Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. 2.
The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements
to their original position.
After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that 3.
the area around the serviced part has not been damaged.
Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input 4.
terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect 5.
an insulation resistance meter (500 V) to theblades of the AC plug. The insulation resistance between each blade of the
AC plug and accessible conductive parts (see above) should be greater than 1 megohm.
Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; 6.
always remove the instrument’s ground lead last.
this manual.
If unforeseen circumstances create conict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.
Page 30
1-4
1. Precautions
1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your 1.
body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard,
be sure to remove the wrist strap before applying power to the monitor.
After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent 2.
accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.3.
Use only a grounded-tip soldering iron to solder or desolder ESDs.4.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate 5.
electrical charges sufcient to damage ESDs.
Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs 6.
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material 7.
to the chassis or circuit assembly into which the device will be installed.
Be sure no power is applied to the chassis or circuit and observe all other safety precautions.
CAUTION
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or 8.
lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.
Page 31
1-5
1. Precautions
1-4. Installation Precautions
For safety reasons, more than a people are required for carrying the product.1.
Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.2.
Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature 3.
may cause re.
Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed 4.
to moisture. Otherwise, it may cause a re or electric shock.
Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check 5.
the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric
shock.
Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the 6.
antenna falling over may cause re or electric shock.
When installing the product, leave enough space (0.4m) between the product and the wall for ventilation purposes. 7.
A rise in temperature within the product may cause re.
Environmental ConsiderationsOperating Temperature : 50˚F ~ 104˚F (10˚C ~ 40˚C)
Audio SpecicationsMAX Internal Audio Output Power : Each 10 W (Left/Right)
1209.6 (H) x 680.4 (V) mm
Vertical : 56 ~ 75 Hz
Vertical : 1080 Pixels
Operating Humidity : 10% ~ 80%, non-condensing
Storage Temperature : -4˚F ~ 113˚F (-20˚C ~ 45˚C)
Storage Humidity : 5% ~ 95%, non-condensing
Equalizer : 5 Band
Output Frequency : RF : 20 Hz ~ 15.4 kHz
AV/Componet/HDMI : 20 Hz ~ 20 kHz
Page 40
2-9
2. Product specications
2-3. Accessories
NOTE
The items’ colors and shapes may vary depending on the model.•
Check that there is no accessory hidden behind packing materials when you open the box.•
The part code for some accessories may differ depending on your region.•
ProductCode. NoProductCode. No
Remote Control• AA59-00790AWarranty Card• -
Batteries (AAA x 2)• 4301-000121Regulatory Guide• BN68-04972A
Power Cord• 3903-000849Samsung 3D Active Glasses• BN96-25614A
User Manual•
ImageProductCode. No
BN68-04881P (40", 46")
BN68-05566E (55")
Holder-Wire stand• BN61-08370A
Holder-Ring (Depending on the Model)• -
CI Card Adapter• 3709-001791
IR Extension Cable• BN96-26652B
Page 41
2-10
2. Product specications
2-4. Viewing the Functions
2-4-1. Auto Motion Plus 120Hz
Function Naming
120Hz FRC + MJC : Auto Motion Plus 120Hz -
Detail Specications
Function (OSD)120Hz FRC
Off
Clear
Standard
Smooth
Custom
Demo
(repeat)
(interpolation)
(interpolation)
(interpolation)
120Hz Motion Enhancement
Off
ON
ON
ON
Judder reduction
(only 24p source)
OffOff
OffHigh
MediumMedium
HighHigh
Level variable
(0~10)
Demo
(Standard / Off)
Blur reduction
OffLow / Mudium / HighDemo
Page 42
2-11
2. Product specications
2-4-2. Supported Formats
Supported Subtitle Formats
Exterminal
NameFile Extension
MPEG-4 Timed textTimed text .ttxt
SAMI.smi
SubRip.srt
SubViewer.sub
Micro DVD.sub or .txt
SubStation Alpha.ssa
Advanced SubStation Alpha.ass
Powerdivx.psb
Internal
NameContainer
XsubAVI
SubStation AlphaMKV
Advanced SubStation AlphaMKV
SubRipMKV
MPEG-4 Timed textMP4
Supported image resolutions
File ExtensionTypeResolution
*.jpg, *.jpegJPEG15360 x 8640
*.pngPNG4096 x 4096
*.bmpBMP4096 x 4096
*.mpoMPO15360 x 8640
Supported Music File Formats
File ExtensionTypeCodecComments
*.mp3MPEGMPEG1 Audio Layer 3
*.m4a
*.mpa
*.aac
*.acFLACFLACSupports up to 2 channel
*.oggOGGVorbisSupports up to 2 channel
*.wmaWMAWMA
*.wavwavwav
*.mid , *.midimidimiditype 0, type 1 are supported.
*.apeapeape
MPEG4AAC
WMA 10 Pro supports up to 5.1 channel. WMA lossless
audio is not supported. Supports up to M2 prole (except
LBR mode)
Page 43
2-12
2. Product specications
Video Codec
File
Extension
*.avi
*.mkv
*.asf
*.wmv
*.mp4
*.3gp
*.vro
*.mpg
*.mpeg
*.ts
*.tp
*.trp
*.mov
*.v
*.vob
*.svi
*.m2ts
*.mts
*.divx
*.webmWebMVP81920 x10806~3020Vorbis
ContainerVideo CodecResolution
Divx 3.11 / 4 / 5 / 6
1920 x 1080
1920 x 1080
(WMV
v7, v8,
MSMPEG4
v3:
1280x720)
AVI
MKV
ASF
MP4
3GP
MOV
FLV
VRO
VOB
PS
TS
SVAF
MPEG4 SP/ASP
H.264 BP/MP/HP
Motion JPEG640 x 480
Microsoft MPEG-4 v3
Window Media Video
v7,v8,v9
MPEG2
MPEG1
MVC24/25/3060
VP6640 x 4804
Frame rate
(fps)
6~30
Bit rate
(Mbps)
30
8
30
Audio Codec
AC3
LPCM
ADPCM(IMA,
AAC
HE-AAC
WMA
DD+
MPEG(MP3)
Other Restrictions
MS)
Codecs may not function properly if there is a problem with the content data.
Video content does not play or does not play correctly if there is an error in the content or container.
Sound or video may not work if they have standard bit rates/frame rates above the TV’s compatibility ratings.
If the Index Table is wrong, the Seek (Jump) function does not work.
When playing video over a network connection, the video may not play smoothly because of data transmission speeds.
Some USB/digital camera devices may not be compatible with the player.
Video Decorders
Supports up to H.264, Level 4.1 (does not support FMO/ASO/RS)•
VC1 AP L4 is not supported.•
All video codecs excluding WMV v7, v8, MSMPEG4 v3, MVC, and VP6:•
Below 1280 x 720: 60 frame max -
Above 1280 x 720: 30 frame max -
GMC is not supported.•
Supports SVAF top/bottom and left/right only.•
Supports Blu-ray/DVD MVC specs only.•
Audio Decorders
WMA 10 Pro supports up to 5.1 channels. Supports up to M2 prole.•
WMA lossless audio is not supported.•
QCELP, AMR NB / WB is not supported.•
Vorbis is supported for up to 2 channels.•
DD+ is supported for up to 5.1 channels.•
Page 44
2-13
2. Product specications
EnglishEnglish
Basic Features
Using the Remote Control
Learn where the function buttons are on your remote. Especially note these: SOURCE, MUTE, Y,
< P >, MENU, TOOLS, E, INFO, CH LIST, RETURN, GUIDEand EXIT.
✎
This remote control has Braille points on the Power, Chanel, and Volumebuttons and can be used by visually impaired persons.
Displays and selects the available video sources.
Turns the Set-top box on and off.
Returns to the previous channel.
Cuts off the sound temporarily.
Brings up Smart Hub applications. See the
e-Manual chapter, SMART TV Features > Smart Hub.
Changes channels.
Exits the menu.
Displays the EPG (Electronic Programme Guide).
Displays information on the TV screen.
Turns the TV on and off.
Gives direct access to channels.
Adjusts the volume.
Opens the OSD (Menu).
Quickly selects frequently used functions.
Returns to the previous menu.
Use these buttons according to the directions on
the TV's screen.
Use these buttons in a specific feature. Use these
buttons according to the directions on the TV's
screen.
Moves the cursor, selects the on-screen menu
items, and changes the values seen on the TV's
menu.
Displays channel lists on the screen.
Alternately select Teletext ON Double, Mix or OFF.
SEARCH: Support to recommendation search
word and search function. See the e-Manual
chapter, SMART TV Features > Smart Hub >
Searching.
STATUS: Display the status and notification banner
at the top of the screen.
MORE: Displays a virtual remote control on the
screen. See the e-Manual chapter, Controlling TV
> Using the Virtual Remote Control.
E-MANUAL: Displays the e-Manual.
RECOMMEND: Displays the recommended
programmes from among the programmes
currently being broadcast as well as recommended
applications are listed.
AD/SUBT.: Turns the audio description on and off
(not available in some locations). / Displays digital
subtitles. See e-Manual chapter TV Viewing >
Subtitles.
2-4-3. Remote Control
Learn where the function buttons are on your remote. Especially note these: SOURCE, MUTE, Y, < P >, MENU, TOOLS,
E, INFO, CH LIST, RETURN, GUIDE and EXIT.
NOTE
This remote control has Braille points on the Power, Chanel, and Volume buttons and can be used by visually impaired persons.
Page 45
2-14
2. Product specications
Universal Remote Control Setup
This TV has a universal remote control feature that lets you control cable boxes, Blu-ray players, home theatres, and other third-party external devices connected to the TV using the TV's remote control.
✎
Some or new models of the external device connected to the TV, may not be supported the Universal remote setup.
2-4-4. Universal Remote Control Setup
This TV has a universal remote control feature that lets you control cable boxes, Blu-ray players, home theatres, and
other third-party external devices connected to the TV using the TV's remote control.
NOTE
Some or new models of the external device connected to the TV, may not be supported the Universal remote setup.
Keep a distance of 5 cm at least between the IR Extender and the external device, as the illustration shows. Face the
IR Extender toward the external device’s remote control signal receiver. Note that it should be no obstacle between IR
Extender and external device. The presence of an obstacle will interfere with the transmission of the remote control
signal.
Add the External Device
Turn on the external device you wish to set up universal remote function for and then press 1. SOURCE to bring up the
Source screen.
Select 2. Universal remote setup from the top of the screen. This initiates the universal remote setup process.
Follow the on-screen instruction and set up the universal remote control. If it does not work, set up the remote control by 3.
entering the model number manually.
Page 46
2-15
2. Product specications
2-4-5. SMART HUB
This TV features Smart Hub, a multi-purpose entertainment and family center. With Smart Hub, users can surf the web,
download applications, and stay in touch with family and friends through social networking services. In addition, you can
enjoy photo, video, and music les stored on external storage devices.
5. Social
Social Content
4. Apps
Apps & Signature SVC
1. [HOME] On TV
Advaced EPG
Watching history baes
On TV
This functions is only available on U.S and Canada.
While you watch TV, a list of recommended programs on other
channels appears on the screen. You can use this list to change
the channel and nd out more information about the recommended
programs including how much time is left until they air.
Movies & TV Shows
2. Movies & TV Shows
P-VoD
3. Photos, Videos & Music
User EPG
From AllShare
Purchase and watch movies and series without a separate external device.
This functions is only available on U.S and Canada.
Users can buy movies and TV shows online.
Open Smart Hub and select Movies & TV Shows.
This service may be not available depending on the country or
region.
Photos, Videos & Music
Play back photo, video, and music les from an external storage device.
Open Smart Hub and select Photos, Videos & Music.
Enjoy photo, video and music les from an external storage device
directly on your TV. Back up important les before connecting
an external storage device to the TV. Samsung will not be held
responsible for damaged or lost les.
Page 47
2-16
2. Product specications
Social
Watch the latest YouTube videos and you and your friends' video
posts on Facebook and Twitter. You
can also make video calls to friends by connecting the TV to a
camera (sold separately).
Apps
Download and install applications such as WebBrowser and Family Tree.
Samsung Apps offers an extensive collection of free and paid news,
sports, weather, and gaming content you can directly download to
and enjoy on your TV. First, check the network and make sure the
TV is connected to the Internet. Your TV needs to be connected to
the Internet in order to use Apps.
Samsung Apps•
Samsung Apps offers various free and paid news, sports, weather, and gaming applications. Samsung Apps lets you
search for applications and install them directly on your TV. Read and agree to the terms and conditions of use and
then browse through the categories or directly search for applications.
Fitness•
Fitness is an application that helps you stay t. Create a prole, set up an exercise plan, and start exercising
according to a structured regimen. Read and agree to the terms and conditions before using Fitness.
Kids•
This is a quick launcher and recommended list for applications and content that is suitable for children and even
provides services not currently installed on your TV. Using Kids, you can download applications and content for your
children to your TV. Certain services, however, are fee-based.
WebBrowser•
WebBrowser is a web-browsing application. Using WebBrowser, you can browse the Internet on your TV as you
would on your computer and even watch TV while you surf the web. The browsing experience, however, may not be
the same as it is on your computer. Use a keyboard and mouse for a more convenient web browsing experience.
Social Networks•
Share your thoughts and comments about a program on the air through social networking services. Social Networks
displays social network services such as Twitter, Facebook, Google Talk, and NateOn on a single screen. You can
even post messages and comments in the same manner as you would using a computer. You must rst link your
Samsung account to the respective SNS accounts before you can access them using Social Networks.
Page 48
2-17
2. Product specications
2-4-6. 3D Display
What is 3D Display?
This mode is to enables users to view images on the TV/Monitor in 3D by
receiving the video signal in 3D format from sources such as 3D games
and titles. The human brain constructs a 3 dimensional image from the
two images entering both eyes. The depth of a 3 dimensional images is
determined by the horizontal difference between the images from both
the left and right eyes. 3D is displaysed two images alternately on screen
equivalent to left and right at TV, and embodies by doing to see each
relevant image in left eye and right eye through shutter glasses.
3D Function of Model Series
LCD / LED / PDP TVLED
Sub Items120Hz
Platform (Main)X12
Items
Platform (FRC / Formatter)
2D → 3D CoversionO
3D → 2DO
3D Feature
FRC FeatureAuto Motion PlusO
3D Input Format
3D PerspectiveO
3D DepthO
Auto View (Auto Format Detection)X
3D OptimizeO
ATV / AV, PC2D → 3DO
Component
HDMI
HDMI (PC / DVI)LL, VS, Check ker BD, FSX
HDMI (PC / DVI)
DTV
2D → 3DO
SS, TBO
2D → 3DO
SS, TBO
FP 1080P 24 / 25 / 30
FP 720P 50 / 60
FP 1080i 50 / 60
2D → 3DO
SS, TBO
MPOO
SVAF IES (SS, BT)O
MVC 1080P 24 / 25 /30
MVC 720P 50 / 60
MVC 1080i 50 / 60
MVC 720P 24 / 25 /30
2D → 3DO
SS, TBO
DVB_Phasel (SS, BT)O
ATSC_KR30O
Fox-FT1 (SDC)
Fox-FT2 (AUO / CMI)
Echo-Fs (Sharp 3D)
NT7231 2 (Sharp 2D)
O
O
Page 49
2. Product specications
Surpported 3D Resolutions
These specications apply to a display ratio of 16:9 only.
3D Format: L/R, T/B•
ResolutionFrequency (Hz)
1280 x 720p59.94 / 60
1920 x 1080i59.94 / 60
1920 x 1080p23.98 / 24 / 29.97 / 30 / 59.94 / 60
3D Format: Frame Packing•
ResolutionFrequency (Hz)
1280 x 720p59.94 / 60
1920 x 1080i59.94 / 60
1920 x 1080p23.98 / 24 / 29.97 / 30
Component•
ResolutionFrequency (Hz)
1280 x 720p59.94 / 60
1920 x 1080i59.94 / 60
1920 x 1080p23.98 / 24 / 29.97 / 30 / 59.94 / 60
Digital Channel•
ResolutionFrequency (Hz)
1280 x 720p59.94 / 60
1920 x 1080i59.94 / 60
3D Format Test
3D Format : There are several 3D formats existing on how to merge Left and Right images.
Format Input images Test Method
Frame Packin
(HDMI 1.4)
Top & Bottom
Side by Side
2D → 3D
Able to test only by HDMI 1.4 BD Player or MSPG-4600MT(Master Device)
Using Format_test.bmp
Check in the PC(HDMI) source. PC resolution and format resolution must be same•
Wearing 3D glass, left eye sees only ‘L’ letter, right eye sees only ‘R’ letter (close •
your eyes one by one)
Using Format_test.bmp
Check in the PC(HDMI) source. PC resolution and format resolution must be same•
Wearing 3D glass, left eye sees only ‘L’ letter, right eye sees only ‘R’ letter (close •
your eyes one by one)
Check in the normal 2D source. Check not in the test pattern but in the actual video.
Left/Right black region will grow more and more as the depth goes higher.•
2-18
Page 50
4. Troubleshooting
4-1. Troubleshooting
4-1-1. Previous Check
Check the various cable connections rst.1.
Check to see if there is a burnt or damaged cable. -
Check to see if there is a disconnected or loose cable connection. -
Check to see if the cables are connected according to the connection diagram. -
Check the power input to the Main Board.2.
4. Troubleshooting
Power Board
Main Board
How to distinguish if the problem is caused by 3. Main Board or T CON
No Video -
If the problem is No Video but BLU is on and Indication LED is blinking repeatedly and faster than nomal booting,
replace the T-CON board.
Distorted Picture -
Check the inner patterns.
For All mode•
X12FOX_FT1 FRC PostPictureProblem
OKOKNGMain Board or Signal Source
NGOKNGMain Board
NGNGNGMain Board or LVDS cable or T CON or Panel
Power Cable
LVDS Cable
Speaker
Only for HDMI mode (additional check)•
HDMIPictureProblem
OKNGThere is no problems after HDMI IC check HDMI source or HDMI jack.
NGNGThere is no problems before HDMI IC check X12 pattern or LVDS cable or T CON
4-1
Page 51
4-2
4. Troubleshooting
How to check inner pattern?
Enter the service mode 1. ⇢ Choose ‘SVC’ ⇢ Check the ‘internal pattern.’
Enter ‘Service Mode.’2.
If you do not have Factory remote control -
Power OFF MENU182Power On
If you have Factory remote control -
INFOFactory
Choose ‘SVC 3. ⇢ Test pattern’.
Option
Control
Debug
SVC
ADC/WB
Advanced
Check inner patterns.4.
Test PatternMstar Test Pattern
Page 52
4-1-2. Simple ow chart of malfunction
4-3
4. Troubleshooting
Does the TV turn on?
No
Check the Power Cord.
Yes
Is any sound of
TV when RF signal
connected?
No
Yes
Can you see anything
on the screen?
No
Yes
If necessary replace the
Yes
Check the LVDS
Cable connected.
T-CON Board.
Can you see
OSD menu running
on the screen?
No
Check LVDS cable
connected to Main Board.
If necessary, replace the
Main Board.
No
Change the Main Board.
Yes
Can you see Digital
Channel broadcast ?
No
Replace the Main Board.
A5V appear at
the pin 4 of CN201?
Yes
B13V appear at
the pin 11, 12, 13 of
CN201?
Yes
Please, contact Tech
support.
No
No
Check 20p Cable.
If necessary, replace the
SMPS Board.
Change the Main Board.
Page 53
4-4
4. Troubleshooting
4-2. How to Check Fault Symptom
4-2-1. NO Power
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
The LEDs on The front panel do not work when connecting The power cord.•
Symptom
Major
checkpoints
The SMPS relay does not work when connecting The power cord.•
The units appears to be dead.•
The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly
connected or the Main Board or SMPS is not functioning. In this case, check the following:
Check the internal cable connection status inside the unit.•
Check the fuses of each part.•
Check the output voltage of SMPS.•
Replace the Main Board.•
Diagnostics
Power indicator LED is on?
Yes
Check the backlight on, when 20 PIN
cable unconnected ?
Yes
Check ‘Stand-By 5V’ ?
BD207 : A5.3V
Yes
Check ‘Power input of Main Ass’y’ ?
BD206 / BD201 : B12VS -
BD214 / 209 : B13V -
BD208 / BD213 : B5V -
Yes
Check ‘Power IC output of Main Ass’y’ ?
IC202 : A3.3V -
L202 : B1.15V / L201 : B5V -
L203 : B3.3V / BD211 : B1.5V -
Yes
No
No
No
No
No
Check the power cord connection.
Change 20p cable.
Change Main Power Ass’y.
Change the Main Ass’y.
Check Input power of ‘T CON Board’ ?
F1(T CON) : B13V -
Yes
Check Power of ‘T CON Board’.
BD1(T CON) : Panel_12V -
B1.1V(T CON-TP) : FT1_1.1V_PW -
No
No
Reconnect or Change.
the LVDS cable.
Change the T CON Board.
Page 54
Yes
4-5
4. Troubleshooting
Diagnostics
Please, Contact tech support.
CautionMake sure to disconnect the power before working on the IP Board.
Page 55
4-6
4. Troubleshooting
Location of Parts
Main Board_Front
B
A
C
D
Detail
BD214 : B13V
BD209 : B13V
BD211 : B1.5V
A
C
BD206 : B12V
BD201 : B12V
BD213 : B5.3V
BD208 : B5.3V
L202 : B1.15V
BD207 : A5.3V
L201 : B5V
B
D
L203 : B3.3V
Page 56
4-2-2. No Video (HDMI 1, 2, 3, 4 - Digital Signal)
4-7
4. Troubleshooting
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
SymptomAudio is normal but no picture is displayed on the screen.•
Check the HDMI source.•
Major
checkpoints
Check the HDMI switch.•
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the HDMI source and check the
connection of HDMI cable ?
Yes
Check the signal at Input of Main Board ?
1
HDMI1 Clk -
Pin #10, #12 of CN602_H2
DATA •
Pin #7, #9, #4, #6, #1, #3 of
CN602_H2
HDMI2 Clk -
Pin #10, #12 of CN603_H3
DATA •
Pin #7, #9, #4, #6, #1, #3 of
CN603_H3
HDMI3 Clk -
Pin #10, #12 of CN604_H4
DATA •
Pin #7, #9, #4, #6, #1, #3 of
CN604_H4
HDMI4 Clk -
Pin #10, #12 of CN601_H1
DATA •
Pin #7, #9, #4, #6, #1, #3 of
CN601_H1
No
No
No
Check a set in the ‘Stand-by mode’.
Input the HDMI signal properly.
Check CN601~4.
Check HDMI cable.
Change the Main Ass’y.
or
Check IC1001(X12).
Change the Main Ass’y.
Yes
Check the LVDS clk signal at output of
2
Replace the T CON / LCD panel?
CautionMake sure to disconnect the power before working on the IP Board.
Main Board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP -
TX4_CLK : EVEN_TXCLK_DN/DP -
Yes
Check the LVDS cable?
No
No
Please, Contact tech support.
Check IC1001(X12).
Change the Main Ass’y.
Page 57
4-8
4. Troubleshooting
Location of Parts
Main Board_Front
A
B
Detail
CN604_H4 : HDMI3
CN603_H3 : HDMI2
A
CN602_H2 : HDMI1
CN601_H1 : HDMI4
B
Page 58
4-9
4. Troubleshooting
Waveforms
1HDMI input (RX_Data, RX_Clk)2LVDS output
Page 59
4-10
4. Troubleshooting
4-2-3. No Video (Tuner_CVBS)
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
SymptomAudio is normal but no picture is displayed on the screen.•
Check the Tuner CVBS source.•
Major
checkpoints
Check the Tuner.•
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the RF source and check the
connection of RF cable.
Yes
Check the Power of Tuner ?
1
2
2
Pin #4 of Tuner : B3.3V_Tuner -
Pin #1 of Tuner : B1.8V_Tuner -
Yes
Check the CVBS data out of IC1001 ?
C807 : Tuner CVBS
Yes
Check the LVDS clk signal at output of
Main board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP -
TX4_CLK : EVEN_TXCLK_DN/DP -
Yes
No
No
No
No
No
Check a set in the ‘Stand-by mode’.
Input the RF source properly.
Change the Main Ass’y.
Check IC1001(X12).
Change the Main Ass’y.
Check IC1001(X12).
Change the Main Ass’y.
Check the LVDS cable?
Replace the T CON / LCD panel?
CautionMake sure to disconnect the power before working on the IP Board.
No
Please, Contact tech support.
Page 60
4-11
4. Troubleshooting
Location of Parts
Main Board_Front
B
C
A
Detail
A
Pin #4 : B3.3V
Pin #1 : B1.8V
B
C807
C
Page 61
4-12
4. Troubleshooting
Waveforms
1CVBS OUT (Grey Bar)2LVDS output
Page 62
4-2-4. No Vido (Tuner DTV)
4-13
4. Troubleshooting
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
SymptomAudio is normal but no picture is displayed on the screen.•
Check the DTV source.•
Major
checkpoints
Check the Tuner.•
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the RF source and check the
connection of RF cable.
Yes
1
2
2
Check the ‘signal strength’ in Self
Diagnosis menu Strength is enough ?
Yes
Check the Power of Tuner ?
Pin #4 of Tuner : B3.3V_Tuner -
Pin #1 of Tuner : B1.8V_Tuner -
Yes
Check the LVDS clk signal at output of
Main board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP -
TX4_CLK : EVEN_TXCLK_DN/DP -
Yes
No
No
No
No
No
Check a set in the ‘Stand-by mode’.
Input the RF source properly.
Check the D-TV source.
Change the Main Ass’y.
Check IC1001(X12)
Change the Main Ass’y.
Check the LVDS cable?
Replace the T CON / LCD panel?
CautionMake sure to disconnect the power before working on the IP Board.
No
Please, Contact tech support.
Page 63
4-14
4. Troubleshooting
Location of Parts
Main Board_Front
B
A
Detail
A
Pin #4 : B3.3V
Pin #1 : B1.8V
B
Page 64
4-15
4. Troubleshooting
Waveforms
1CVBS OUT (Grey Bar)2CH_CLK, CH_VALID
2CH_CLK, CH_VALID
Page 65
4-16
4. Troubleshooting
4-2-5. No Video (Video AV)
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
SymptomAudio is normal but no picture is displayed on the screen.•
Major
checkpoints
Diagnostics
CautionMake sure to disconnect the power before working on the IP Board.
Check the Video CVBS source.•
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the video source and check the
connection of video cable?
Yes
Check the LVDS clk signal at output of
2
Replace the T CON / LCD panel?
Main board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP -
TX4_CLK : EVEN_TXCLK_DN/DP -
Yes
Check the LVDS cable?
No
No
No
No
Check a set in the ‘Stand-by mode’.
Input the video source properly.
Check IC1001(X12)
Change the Main Ass’y.
Please, Contact tech support.
Page 66
4-17
4. Troubleshooting
Location of Parts
Main Board_Front
A
B
Detail
A
R816 : COMP2_Y_CVBS
B
Page 67
4-18
4. Troubleshooting
Waveforms
1CVBS OUT (Grey Bar)2LVDS output
Page 68
4-2-6. No Video (COMPONENT)
4-19
4. Troubleshooting
Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
SymptomAudio is normal but no picture is displayed on the screen.•
Major
checkpoints
Diagnostics
Check the Component source•
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the component source and check
the connection of component cables ?
Y, Pb, Pr
Yes
Does the component data appear at ?
1
2
COMP2_Y_CVBS : R816 -
Pb : R817 -
Pr : R815 -
Yes
Check the LVDS clk signal at output of
Main Board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP -
TX4_CLK : EVEN_TXCLK_DN/DP -
No
No
No
No
Check a set in the ‘Stand-by mode’.
Input the component source properly.
Check CN502.
Change the Main Ass’y.
Check IC1001(X12).
Change the Main Ass’y.
Yes
Check the LVDS cable?
Replace the T CON / LCD panel?
CautionMake sure to disconnect the power before working on the IP Board.