Samsung UN40HU6950F Schematic
LED TV
Chassis : U8JA
Model : UN40HU6950F
UN50HU6950F
UN55HU6950F
SERVICE
LED TV Contents
1. Precautions
2. Product specications
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagram
Manual
UN**HU6950F
Contents
1. Precautions ...................................................................................................................1-1
1-1. Safety Precautions ..............................................................................................................1-1
1-1-1. Warnings ...................................................................................................................1-1
1-1-2. Servicing the LED TV ...............................................................................................1-1
1-1-3. Fire and Shock Hazard .............................................................................................1-1
1-1-4. Product Safety Notices .............................................................................................1-2
1-2. Servicing Precautions ..........................................................................................................1-3
1-2-1. General Servicing Precautions ................................................................................. 1-3
1-3. Static Electricity Precautions ...............................................................................................1-4
1-4. Installation Precautions .......................................................................................................1-5
2. Product Specications.................................................................................................2-1
2-1. Product information .............................................................................................................2-1
2-2. Product specication ...........................................................................................................2-2
2-2-1. Detailed Specications ............................................................................................. 2-2
2-2-2. Feature & Specications ........................................................................................... 2-6
2-3. Accessories .........................................................................................................................2-7
2-4. Viewing the Functions .........................................................................................................2-8
3. Disassembly and Reassembly ....................................................................................3-1
3-1. Disassembly and Reassembly ............................................................................................3-1
4. Troubleshooting ...........................................................................................................4-1
4-1. Troubleshooting ...................................................................................................................4-1
4-1-1. Previous Check ........................................................................................................4-1
4-1-2. Simple ow chart of malfunction ...............................................................................4-3
4-2. How to Check Fault Symptom .............................................................................................4-4
4-2-1. NO Power .................................................................................................................4-4
4-2-2. No Video (HDMI 1, 2, 3, 4 - Digital Signal) ...............................................................4-7
4-2-3. No Video (Tuner_CVBS) ........................................................................................ 4-10
4-2-4. No Video (Tuner DTV) ............................................................................................4-13
4-2-5. No Video (Video AV) ...............................................................................................4-16
4-2-6. No Video (COMPONENT) ......................................................................................4-19
4-2-7. No Sound (1.Speaker 2.Monitor_out 3.Optical)_NT14U .................................... 4-22
4-3. Factory Mode Adjustments ................................................................................................4-25
4-3-1. Detail Factory Option ..............................................................................................4-25
4-3-2. Entering Factory Mode ........................................................................................... 4-26
4-3-3. Factory Data ...........................................................................................................4-27
4-4. White Balance ...................................................................................................................4-43
4-4-1. Calibration ..............................................................................................................4-43
4-4-2. Service Adjustment ................................................................................................. 4-43
4-4-3. Adjustment .............................................................................................................. 4-44
4-5. RS-232C ............................................................................................................................4-45
4-6. AV Control Tabe ................................................................................................................. 4-46
4-7. Software Upgrade ..............................................................................................................4-52
4-7-1. How to Check the Software Version .......................................................................4-52
4-7-2. How to Upgade Software ........................................................................................ 4-53
5. Wiring Diagram .............................................................................................................5-1
5-1. Wiring Diagram ....................................................................................................................5-1
5-2. Connector ............................................................................................................................5-2
5-3. Connector Functions ...........................................................................................................5-5
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© 2014 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
1. Precautions
1. Precautions
1-1. Safety Precautions
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
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 on schematics and parts lists. A substitute
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.
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.
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.
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.
If an equipment is provided with a replaceable battery, and if replacement by an incorrect type could result in an 8.
explosion (for example, with some lithium batteries), the following applies:
Risk of explosion if battery is replaced by an incorrect type dispose of used batteries according to •
the instructions.
Do not dispose of batteries in a re.•
Do not short circuit, disassemble or overheat the batteries.•
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent •
type.
Do not be exposed to excessive heat such as sunshine, re or the like.•
2. Product Specications
2-1. Product information
Model UN**HU6950F
2. Product specications
W
Front View
Detail View
Front Color Clear / Black
Dimensions
(W x H x D)
40"
50"
55"
40"
With stand 916.9 X 585.9 X 258.0 mm
With stand 1127.9 X 703.1 X 275.1 mm
With stand 1239.7 X 765.0 X 275.1 mm
With stand 11.4 kg
H
* W : Width H : High D : Depth
Body 916.9 X 538.4 X 68.4 mm
Body 1127.9 X 657.2 X 69.0 mm
Body 1239.7 X 719.2 X 69.0 mm
Body 8.7 kg
D
Weight
Panel Type Black
Internal Memory 4GB
DDR 2GB
Feature
50"
55"
Body 14.0 kg
With stand 17.0 kg
Body 16.8 kg
With stand 19.8 kg
Instant On, TTS/Zoom, History Digital Clean View, PIP, USB HID,
TV soundConnect, One Connect (Ready)
2-1
2-2
2. Product specications
2-2. Product specication
2-2-1. Detailed Specications
NOTE
Design and specications are subject to change without prior notice.
Item UN**HU6950FXZA
General Information
Display
Video
Audio
Product LED
Series 6
Country UNITED STATES
Inch 40" / 50" / 55"
Resolution 3,840 x 2,160
Ultra Clear Panel Yes
Clear Motion Rate 240
Micro Dimming Micro Dimming Pro
Precision Black (Local Dimming) N/A
Wide Color Enhancer (Plus) Yes
Color Accuracy N/A
Auto Depth Enhancer N/A
Auto Motion Plus 60HzHz
Film Mode Yes
Dolby MS10 / MS110 MS11
DTS Studio Sound / DNSe+ DTS Studio Sound
DTS Premium Sound / DTS Premium Sound 5.1 DTS Premium Sound 5.1
Smart TV
3D Sound N/A
Auto Volume Leveler Yes
Sound Customizer No
Sound Output (RMS) 20W (Left 10W, Right 10W)
Speaker Type Down Firing
Woofer N/A
HD Audio N/A
Smart Hub Yes
Samsung SMART TV Yes
On TV Yes
Movies & TV Shows Yes
Multimedia Yes
Apps Yes
Game Yes(US)
Multi-Screen (Dual / Quad Screen) Quad
Web Browser Yes
2-3
2. Product specications
Item UN**HU6950FXZA
Smart Interaction
Smart Convergence
Tuner/Broadcasting
Connectivity
Voice Interaction Yes
Camera Built-in N/A
Motion control Ready
Contents Streaming Yes
Screen Mirroring Yes
ISP Bound Service No
RUI No
RVU Yes (US Only, DIRECTV Ready)
Samsung SMART View Yes
Smart Home Yes
DTV Tuner ATSC / Clear QAM
Analog Tuner Yes
HDMI 4 (HDMI 2.0 / HDCP2.2)
USB 3
Component In (Y/Pb/Pr) 1
Composite In (AV) 2(1Common Use for Component Y)
Ethernet (LAN) Yes
Design
Headphone No
Audio Out (Mini Jack) Yes
Digital Audio Out (Optical) 1
PC In (D-sub) N/A
PC/DVI Audio In (Mini Jack) N/A
RF In (Terrestrial / Cable input) 1/1(Common Use for Terrestrial)/0
Ex-Link ( RS-232C ) 1
One Connect (Jack) Yes
WiFi Direct Yes
MHL Yes
HDMI 1.4 3D Auto Setting N/A
HDMI 1.4 A/Return Ch. Support Yes
Wireless LAN Built-in Yes
Anynet+ (HDMI-CEC) Yes
Design T-shape
Bezel Type NNB
Light Effect (Deco) N/A
Stand Type T-Shape
Additional Feature
Swivel (Left/Right) No
Camera Type N/A
Samsung 3D N/A
2-4
2. Product specications
Item UN**HU6950FXZA
Additional Feature
3D Converter N/A
Instant On Yes
Quad Core+ No
Digital Clean View Yes
Auto Channel Search Yes
Auto Power Off Yes
Clock&On/Off Timer Yes
Sleep Timer Yes
BD Wise Plus Yes
Caption (Subtitle) Yes
AC/DC TV N/A
Embeded POP Yes
EPG Yes
Game Mode Yes
History N/A
IP Video Closed Caption Yes
OSD Language English, Spanish, French
Eco Feature
Accessory
Picture-In-Picture Yes
Multi Tasking Yes
BT HID Built-in Yes
USB HID Support Yes
Smart Evolution Support Yes
TV SoundConnect Yes
Teletext (TTXT) No
Time Shift No
V-Chip Yes
Eco Label N/A
Eco Sensor Yes
3D Active Glasses (Included) N/A
Remote Controller Model TM1460A
Batteries (for Remote Control) Yes
Samsung Smart Touch Control (Included) Yes
Ultra Slim Wall Mount Supported Yes
Mini Wall Mount Supported Yes
Vesa Wall Mount Supported Yes
IR Extender Cable (Included) Yes
Wireless Keyboard (Included) No
User Manual Yes
2-5
2. Product specications
Item UN**HU6950FXZA
Accessory
E-Manual Yes
Power Cable Yes
Slim Gender Cable N/A
2-6
2. Product specications
2-2-2. Feature & Specications
Feature
Digital-TV, RF, 4-HDMI, 1-Component,1-A/V, 3-USB (2-USB 2.0, 1-USB3.0) : Media Play, LAN, WIFI•
PIP(in HDMI 1, 2, 3, 4 Component and Sub picture is available only in TV mode(DTV/ATV))•
CMR 240•
Dolby MS11, DTS Premium Sound 5.1, DTS Studio Sound•
Specications
Model UN**HU6950F
Item Description
Screen Size (Diagonal) 40 inch 50 inch 55 inch
LCD Panel UHD 60Hz
Scanning Frequency Horizontal : 60 kHz ~ 136 kHz
Vertical : 56 Hz ~ 75 Hz
Display Resolution 3840 X 2160
Input Signal Analog 0.7 Vp-p ± 5% positive at 75Ω , internally terminated
Input Sync Signal H/V Separate, TTL, P. or N.
Maximum Pixel Clock Rate 138 MHz
AC Power Voltage & Frequency AC110-120V 50/60Hz
Environmental Considerations Operating Temperature : 50˚F ~ 104˚F (10˚C ~ 40˚C)
Operating Humidity : 10% ~ 80%, non-condensing
Storage Temperature : -4˚F ~ 113˚F (-20˚C ~ 45˚C)
Storage Humidity : 5% ~ 95%, non-condensing
Sound (Output) 10W X 2
Note : AllShare, SMART Guide, Web Browser, USB HID, IR Blaster, Smart Control
2-7
2. Product specications
2-3. Accessories
NOTE
The items’ colors and shapes may vary depending on the model.•
Cables not included in the package contents can be purchased separately.•
The part code for some accessories may differ depending on your region.•
Product Code. No Product Code. No
Samsung Smart Control• BN59-01185F Power Cord• 3903-000853
Batteries (AA x 2)• 4301-000101 User Manual• BN68-06501A
Image Product Code. No
IR Extender Cable• BN96-31644A
2. Product specications
RETURN
EXIT
GUIDE
CH.LIST
SMART HUB
KEYPAD
SOURCE
VOL
CH
VOICE
P.SIZE CC INFOMTS
MENU
M.SCREEN
SEARCH
MIC
TV
G
G
G G G
2-4. Viewing the Functions
Samsung Smart Control
MUTE: Cuts off the sound
temporarily.
Microphone: Use the microphone with the Voice
Control and Voice functions.
The • Voice Control function can be affected
by unclear pronunciation, voice level, or
surrounding noise.
Turns the TV on and off.
SEARCH: Launches the Search function.
KEYPAD: Displays the On-Screen Remote. See the
e-Manual chapter, Using the Remote Control and
Peripherals > Using the Samsung Smart Control >
Displaying and Using the On-Screen Remote.
SOURCE: Displays and lets you select video sources.
VOICE: Takes your voice commands and lets you
enter text using your voice.
Changes channels.
Adjusts the volume.
Touch pad
Place a nger on the touch pad and move the
Samsung Smart Control. The pointer on the screen
moves in the direction you moved the Samsung
Smart Control.
Press the touch pad to run the focused item.
Press and hold the touch pad to display the Context-
Sensitive Menus.
: Moves the cursor, selects the on-screen
menu items, and changes the values seen on the
TV's menu.
RETURN: Returns to the previous menu.
SMART HUB: Brings up Smart Hub applications. See
the e-Manual chapter, Smart Features > Smart Hub.
To exit an application quickly, press the •
GUIDE: Displays the EPG (Electronic Program Guide).
Use these buttons with a specic feature and
according to the directions on the TV's screen.
MENU: Displays the menu on the screen.
M.SCREEN: You can split the TV screen and enjoy multiple activities - such as watching
TV, surng the web, and watching a video - all at the same time.
button.
P.SIZE: Lets you choose the picture size.
MTS: Press to choose stereo, mono, or Separate Audio Program (SAP broadcast).
CC: Controls the caption decoder and displays captions on the screen.
INFO: Displays information on the TV screen.
2-8
3. Disassembly and Reassemble
3. Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the LED TV.
This UHD TV contains electrostatically sensitive devices. Use caution when handling these components.
WARNING
3-1. Disassembly and Reassembly
Disconnect the UHD TV from the power source before disassembly.1.
Follow these directions carefully; never use metal instruments to pry apart the cabinet.2.
CAUTION
40" / 50" / 55"
Remove screws from the Stand.
If there is no additional coment, it is same for all inches.3.
Description Picture Description Screws
1
Remove stand.
Torque :
9~11Kgf.cm.
6003-001208
3-1
3-2
3. Disassembly and Reassemble
Description Picture Description Screws
Remove the screws of rear-cover.
2
(In this step, Two types of screws are
used.)
40" : 11EA / 2EA•
50" : 16EA / 2EA •
55" : 16EA / 2EA•
Remove the Main Board and the Power
3
Board.
Torque :
7~8Kgf.cm.
6001-002755
Torque :
9~11Kgf.cm.
6003-001782
NOTE
Applied to Double locking.
Flip up the locking tab on top of the 1.
connector.
Squeeze the edge of the connector 2.
to release the second tab lock and
gently pull the connector away.
3-3
3. Disassembly and Reassemble
Description Picture Description Screws
Remove the screws of main board.
4
Remove the screws of IP board.
Remove the IP board.
Torque :
7~8Kgf.cm
6001-003016
Remove the BT Module.
5
3-4
3. Disassembly and Reassemble
Description Picture Description Screws
Remove the Wi-Fi module.
6
Remove the Speakers.(R/L)
7
Remove the screws of T-con.
8
Unlock the locking of T-con cable.
T-con Board
Torque :
7~8Kgf.cm
6001-003016
3-5
3. Disassembly and Reassemble
Description Picture Description Screws
Completed disassembly.
9
Reassembly procedures are in the reverse order of disassembly procedures.
Panel•
NOTE
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
Main Board
Power Cable
LVDS Cable
T-con Board
Speaker
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•
NT14U NT72323BG FRC Picture Problem
Power Board
OK OK NG Main Board or Signal Source
NG OK NG Main Board
NG NG NG Main Board or LVDS cable or T CON or Panel
Only for HDMI mode (additional check)•
HDMI Picture Problem
OK NG There is no problems after HDMI IC check HDMI source or HDMI jack.
NG NG There is no problems before HDMI IC check X12 pattern or LVDS cable or T CON
4-1
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 INFO MENU MUTE Power On
If you have Factory remote control -
INFO Factory
Choose ‘SVC 3. ⇢ Test pattern’.
Option
Control
Debug
SVC
ADC/WB
Advanced
Check inner patterns.4.
Test Pattern Test Pattern Sel.
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
Yes
Can you see
anything on the
screen?
No
Check the LVDS
Cable connected.
If necessary replace the
T-CON Board.
Yes
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 24p Cable.
If necessary, replace the
SMPS Board.
Change the Main Board.
Loading...