Haier LE40U5000TF User manual

SERVICE MANUAL
LED TV
Model No. LE40U5000TF
MSD3463 Chassis
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

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Chapter 1: General Information
1-1. Table of Contents
1. General Information...........................................................................1
1-1. Table of Contents 1
1-2. General Guidelines 3
1-3. Important Notice 3
1-4. How to Read this Service Manual 6
2. Specification .................................................................................... 6
3. Location of Controls and Components........................................... 8
3-1. Board Location 8
3-2. Main Board & AV Board 8
3-3. Power board 11
3-4. LCD Panel 13
4. Disassemble and Assemble ..........................................................
14
4-1 Remove the Pedestal 14
4-2 Remove the Back Cover 14
4-3 Remove the Adhesive Tape 14
4-4 Remove the Main Board 15
4-5 Remove the Speaker 15
4-6 Remove the Remote Control Board 16
4-6 Remove the Power board 16
5. Installation Instructions.. …....………………...........…………......... 17
5-1 External Equipment Connections 17
5-2 HDMI Connections 21
6. Operation Instructions.... …....………………...........…………......... 24
6-1 Front Panel Controls 24
6-2 Back Panel Controls 24
6-3 Universal Remote Control 25
7. Electrical Parts …....………………...........………….........................
26
7-1. Block Diagram 26
7-2. Circuit Diagram 27
7-3. Wiring Connection Diagram 35

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8. Measurements and
Adjustments ........…………............................
36
8-1. How to enter into the factory model 39
8-2. How to update software 40
8-3. How to enter into the Hotel Model 41
9. Trouble-shooting ………….............................................................. 42
9-1. Simple Check 42
9-2. Main Board Failure Check 43
9-3. Panel Failure 50

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1-2. General Guidelines
When servicing, observe the original lead dress. If a short circuit is found, replace all parts
which have been overheated or damaged by the short circuit.
After servicing, see to it that all the protective devices such as insulation barriers, insulation
papers shields are properly installed.
After servicing, make the following leakage current checks to prevent the customer from
being exposed to shock hazards.
1) Leakage Current Cold Check
2) Leakage Current Hot Check
3) Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive
1-3. Important Notice
1-3-1. Follow the regulations and warnings
Most important thing is to list up the potential hazard or risk for the service personnel to
open the units and disassemble the units. For example, we need to describe properly
how to avoid the possibility to get electrical shock from the live power supply or charged
electrical parts (even the power is off).
This symbol indicates that high voltage is present inside.It is dangerous to
make any king of contact with any inside part of this product.
This symbol indicates that there are important operating and maintenance
instructions in the literture accompanying the appliance.
1-3-2. Be careful to the electrical shock
To prevent the damage which might result in electric shock or fire,don ’t expose this TV set
to rain or excessive moisture. This TV must not be exposed to dripping or splashing water,
and objects filled with liquid,such as vases,must not be placed on top of the TV.
1-3-3. Electro static discharge (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically Sensitive (ES) Devices. The following
techniques should be used to help reduce the incidence of component damage caused by
electros static discharge (ESD).
1-3-4. About lead free solder (PbF)
This product is manufactured using lead-free solder as a part of a movement within the
consumer products industry at large to be environmentally responsible. Lead-free solder
must be used in the servicing and repairing of this product.
1-3-5.Use the genewing parts
(Specified Parts)
Special parts which have purposes of fire retardant (resistors), high-quality sound
(capacitors), low noise (resistors), etc. are used.
When replacing any of components, be sure to use only manufacture's specified parts
shown in the parts list.
Safety
Component
Component identified by mark specific characteristics important for safety.

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1-3-6 Safety Check after Repairment
Confirm that the screws,parts and wiring which were removed in order to service are put
in
the original positions, or whether there are the positions which are deteriorated around the
serviced places serviced or not. Check the insulation between the antenna terminal or
external metal and the AC cord plug blades. And be sure the safety of that.
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power source before;
a. Removing or reinstalling any component, circuit board module or any other receiver
assembly.
b. Disconnecting or reconnecting any receiver electrical plug or other electrical
connection.
c. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver.
CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic
capacitors may result in an explosion hazard.
2. Test high voltage only by measuring it with an appropriate high voltage meter or other
voltage measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage
probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its assemblies.
4. Unless specified otherwise in this service manual, clean electrical contacts only by
applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or
comparable non-abrasive applicator; 10% (by volume) Acetone and 90% (by volume)
isopropyl alcohol (90%-99% strength).
CAUTION: this is a flammable
mixture
Unless specified otherwise in this service manual,lubrication of contacts is not required
Capacitors may result in an explosion hazard.
5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this
service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless
all solid-state device heat sinks are correctly installed.
7. Always connect the test receiver ground lead to the receiver chassis ground before
connecting the test receiver positive lead.Always remove the test receiver ground lead last.
Capacitors may result in an explosion hazard.
8. Use with this receiver only the test fixture specified in this service manual.
CAUTION: Don’t connect the test fixture on the ground strap to any heat sink in this
receiver
9. Remove the antenna terminal on TV and turn on the TV.
10. Insulation resistance between the cord plug terminals and the eternal exposure metal
should be more than Mohm by using the 500V insulation resistance meter.
11. If the insulation resistance is less than M ohm, the inspection repair should be required.
If you have not the 500V insulation resistance meter, use a Tester. External exposure
metal: Antenna terminal Headphone jack

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Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily by static electricity.
Such components commonly are called Electrostatically Sensitive (ES) Devices.
Examples of typical ES devices are integrated circuits and some field-effect transistors
and semiconductor "chip" components. The following techniques should be used to help
reduce the ncidence of component damage caused by static by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-
equipped assembly, drain off any electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commercially available discharging wrist
strap device, which should be removed to prevent potential shock reasons prior to applying
power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly
on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or
exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static type solder removal device. Some solder removal devices not
Classified as “anti-static’
can generate can electrical charges sufficient to damage
ES devices.
5. Do not use freon -propelled chemicals,this can generate electrical charges
sufficient to damage ES devices
6. Do not remove a replacement ES device from its protective package until immediately
before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement
ES device, touch the protective material to the chassis or circuit assembly into which the
device will be installed.
CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other
safety precautions.
8. Minimiz e bodily motions when handling unpackaged replacement ES devices.
(Otherwise harmless motion such as the brushing together of your clothes fabric or the
lifting of your foot from a carpeted floor can generate static electricity sufficient to
damage an ES device.)
1-3-7. Ordering Spare Parts
Please include the following informations when you order parts. (Particularly the Version
letter)
1. Model number, Serial number and Software Version
The model number and Serial number can be found on the back of each product and the
Software Version can be found at the Spare Parts List.
2. Spare Part No. and Description
You can find th em in the Spare Parts List

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1-3-8. Photo used in this manual
The illustration and photos used in this Manual may not base on the final design of
products, which may differ from your products in some way.
1-4. How to Read this Service
Manual
Using Icons:
Icons are used to attract the attention of the reader to specific information.The meaning of
each icon is described in the table below:
Note:
A “note” provides information that is not indispensable, but may nevertheless be valuable
to the reader, such as tips and tricks.
Caution:
A “caution” is used when there is danger that the reader, through incorrect manipulation,
may damage equipment, loose data, get an unexpected result or has to restart(part of) a
procedure.
Warning:
A “warning” is used when there is danger of personal injury.
Reference:
A “reference” guides the reader to other places in this binder or in this manual, where he/
She will find additional information on a specific topic.

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2.
Specifications
Model LE40U5000TF
Screen Size 42 inch
Aspect Ratio 16:9
Resolution 1920*1080
Response Time (ms) 8.0 (GRAY TO
GRAY)(Typ.)
Angel of View 176o
Color Display 16.7M
No. of Preset Channels
Air: 2
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69
Cable: 1
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125
OSD Language English
Color System PAL/NTSC
Audio System DK, BG, I, M, L, L'
Audio Output Power
(Built-in) (W)
10W×2
Audio Output Power
(outer) (W)
No
Total Power Input (W) 175W
Voltage Range (V) AC 100-240V
Power Frequency (Hz) 50~60Hz
Net Weight (KG) 6.3
Gross Weight (KG) 8.4
Net Dimension (MM) 733x68.5x439mm
Packaged Dimension
(MM)
733x200x473mm

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3. Location of Controls and Components
3-1 Board Location
B Board A Board
No.
Description
A Board Mainboard
B Board
Power Supply
3-2 Main Board

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3-2-1 Function Description:
Main Board
Process signal which incept from exterior equipment then translate into signal that panel
can display.
3-2-2 Connector definition
Main boa rd connector
Power connectors ( J16)
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１
ＧＮＤ
２ＢＬ－ＡＤＪＵＳＴ
３ＢＬ－ＯＮ／ＯＦＦ
４ＧＮＤ
５ＰＷＲ－ＯＮ／ＯＦＦ
６＋５Ｖ＿Ｓｔａｎｄｂｙ
７＋５Ｖ＿Ｎｏｒｍａｌ
８
+5V_Normal
9
ＧＮＤ
１０
ＧＮＤ
１１
ＧＮＤ
１２
＋１２Ｖ＿Ｎｏｒｍａｌ
１３
＋１２Ｖ＿Ｎｏｒｍａｌ
Notes:
J16-Pin 3: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power
supply unit path.
J16-Pin 5: System power on / standby
System board will use this pin to control system power.
J16-Pin 2: Control the luminance of backlight
The system can generate the PWM signal to control the strength of TFT LCD Panel’ s
backlight through this connector

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Keypad and remote connector (J2)
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１ＧＮＤ
２ＮＣ
３ＫＥＹ０
４ＮＣ
５＋５Ｖ＿Ｓｔａｎｄｂｙ ＰＯＷＥＲ ＦＯＲ ＲＥＭＯＴＥ
６ＧＮＤ ＧＮＤ
７
ＩＲ ＲＥＭＯＴＥ ＣＯＮＴＲＯＬ
８NC
9 ＬＥＤ＿Ｇ
ＬＡＭＰ ＧＲＥＥＮ
１０
ＬＥＤ＿Ｒ
ＬＡＭＰ ＲＥＤ
Speaker connector (J17)
Pin number Signal name Description
1 RSPK+ RSPK+
2 RSPK- RSPK-
3 LSPK- LSPK-
4 LSPK+ LSPK+

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3-3. Power Board
3-3-1 Function Description:
Supply power for Main board, Panel.
3-3-2Connectorde?nition
ＣＯＮ２０１
Ｐｉｎ ｎｕｍｂｅｒ Ｓｉｇｎａｌ ｎａｍｅ
１＋１２Ｖ
２＋１２Ｖ
３ＧＮＤ
４ＧＮＤ
５ＧＮＤ
６＋５Ｖ
７ ＋５Ｖ
８ ＋５ＶＳＴＢ
９ ＰＯＷＥＲ ＯＮ／ＯＦＦ
１０ ＋５Ｖ
１１ ON/BK
１２ ADJ
１３ ＳＧＮＤ

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3-4. LED Panel
LSC550FN07

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3-4-1.Connector de finition
P
i
n
No
Symbol Description
P
i
n
No
Symbol Description
1 12V-PW
DC POWER SUPPLY
26
LOCKN
Lock detect
2 12V-PW
DC POWER SUPPLY
27
GND GROUND
3 12V-PW DC POWER
SUPPLY
28
VB0N V-by-
1 HSdata lane0
4 12V-PW
DC POWER SUPPLY
29
VB0P V-by-
1 HSdata lane0
5 12V-PW
DC POWER SUPPLY
30
GND GROUND
6 12V-PW
DC POWER SUPPLY
31
VB1N V-by-
1 HSdata lane1
7 12V-PW
DC POWER SUPPLY
32
VB1P V-by-
1 HSdata lane1
8 12V-PW DC POWER
SUPPLY
33
GND GROUND
9 NC INTER USE
34
VB2N V-by-
1 HSdata lane2
10 GND GROUND
35
VB2P V-by-
1 HSdata lane2
11 GND GROUND
36
GND GROUND
12
GND
GROUND
37
VB3N
V-by-
1 HSdata lane3
13 GND GROUND
38
VB3P V-by-
1 HSdata lane3
14 GND GROUND
39
GND GROUND
15 SCL_I SCL_I
40
VB4N V-by-
1 HSdata lane4
16 B_INT B_INT 41 VB4P V-by-
1 HSdata lane4
17 SDA_I SDA_I 42 GND GROUND
18 NC INTER USE 43 VB5N V-by-
1 HSdata lane5
19 NC INTER USE 44 VB5P V-by-
1 HSdata lane5
20 NC INTER USE 45 GND GROUND
21 NC INTER USE 46 VB6N V-by-
1 HSdata lane6
22 NC INTER USE 47 VB6P V-by-
1 HSdata lane6
23 NC INTER USE 48 GND GROUND
24 GND GROUND 49 VB7N V-by-
1 HSdata lane7
25 HTPDN Hot-plug detect 50 VB7P V-by-
1 HSdata lane7
51 GND GROUND

Service Manual
4. Disassemble and assemble
4-1 Remove the Pedestal
Lay down the unit so that rear cover
faces upward
Remove the three screw from the rear
cover indicated
Then remove the pedestal
4-2Remove the Back Cover
Remove the these screw indicated on figure above
Then re move the back cover from the unit.
4-3. Remove the adhesive tape
Remove the adhesive tape indicated on the
figure above.

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4-4 Remove the Main board
Disconnected the coupler
J2 J16 J17 CN22
Remove the Main board
4-5 Remove the speaker
Take out the speaker

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4-6 Remove the remote control
take out the Remote Control and Keypad Assembly
4-7 Remove the Power Supply

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5. Installation Instructions
5-1 External Equipment Connections
Accessories
Remote Control User GUIDE Battery
Antenna Connection
Connect one end of a coaxial cable (no t included) to the ANT IN jack on the back of
your TV/DV D combo, then connect the other end of the cable into the antenna or cable
TV wall outlet.
To improve picture quality from an antenna in a poor signa l area, install a signal
amplifier
.
If you need to split the antenna signal to connect two TVs, install a two-way splitter.

Service Manual
ANTENNA
＊TheTVappearancesubjecttomaterial object.
Note:
Aerialconnections: IEC(female).
Inputimpendance:75 unbalanced.
PC
STEPS:
Besureboth theTVand computerarePower off.
1.ConnectVGA and audio
cable
2.Connectpower cord
3.Poweron theTV, switch to PC mode
4.Poweron the PC
Thissequenceisvery important.
AV OUTPU T
HDMI
2
HDMI
1
US
B
VIDE
O
L
R
VG
A
R
F
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INS
T
ALL
A
TION
RESOLUTION V.Freq.(Hz) H.Freq.(KHz)
1640*480 60 31.47
2800*600 60 37.88
3 1024*768 60 48.36
41366*768 60 47.71
5 1280*1024 60 63.98
61920*1080 60 67.5
INSTALLATION
＊Subjecttomaterial
object.
AV IN
AC-INPUT VIDEO L R
100-240V~ 50/60Hz
AV OUT
VIDEO L R
SUPPORTED MODE (PC)
（Only for 40")
NOTE: PC V.Freq.(Hz) not more than
60Hz.
PRESET MODE (HDMI)
RESOLUTION V.Freq.(Hz) H.Freq.(KHz)
1800*600 60 37.88
21024*768 60 48.36
31366*768 60 47.71
41280*768 60 47.3
5 1920*1080 60 67.5
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