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Haier HL40XSL2 Service Manual

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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.

SERVICE MANUAL

Model No.
Service mode HL40XSL2a
WARNING
©2009 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
LED LCD TV
HL40XSL2
MTK5305
Chassis

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Table of Contents
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  Summary of Contents for Haier HL40XSL2

  • Page 1: Service Manual

    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. ©2009 Qingdao Haier Electronics Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2: Table Of Contents

    Service Manual Model No.: LEA40T3 CONTENTS Chapter 1.General Information 1-1. Document Information ............... 3 1-2. General Guidelines ................3 1-3. Important Notice ................... 3 1-3-1. Follow the regulations and warnings ............. 3 1-3-2. Be careful to the electrical shock ............3 1-3-3.
  • Page 3 Service Manual Model No.: LEA40T3 4-3-1. Function description:................14 4-3-2. Connector defi nition: ................14 4-4. LCD Panel ..................... 15 4-4-1. Function Description: Display the signal..........16 4-4-2. Connector defi nition: ................16 Chapter 5. Installation Instructions 5-1. External Equipment Connections ..........
  • Page 4: Chapter 1.General Information

    Service Manual Model No.: LEA40T3 Chapter 1.General Information 1-1. Document Information Document format: Adobe PDF Author: Compiler: 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.
  • Page 5: About Lead Free Solder (Pbf)

    Service Manual Model No.: LEA40T3 techniques should be used to help reduce the incidence of component damage caused by electros static discharge (ESD). 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"...
  • Page 6 Service Manual Model No.: LEA40T3 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.
  • Page 7: Ordering Spare Parts

    Service Manual Model No.: LEA40T3 13. Use only an anti-static type solder removal device. Some solder removal devices not classifi ed as "anti-static" can generate electrical charges suffi cient to damage ES devices. 14. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
  • Page 8: How To Read This Service Manual

    Service Manual Model No.: LEA40T3 1-4. How to Read this Service Manual 1-4-1. 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”...
  • Page 9: Chapter 2. Specifi Cation

    Service Manual Model No.: LEA40T3 Chapter 2. Specifi cation 2-1. Specifi cation list Model LEA40T3 Screen size 40 inch Aspect ratio 16:9 Resolution 1920*1080 Response Time(ms) 6 ms Angel of view Contrast 5000:1 Brightness 450cd/m2 OSD language English etc. Color system ATSC Audio system BTSC...
  • Page 10: External Pictures (Four Faces)

    Service Manual Model No.: LEA40T3 2-2. External pictures (four faces) Front Side Left Side...
  • Page 11: Chapter 3. Disassemble And Assemble

    Service Manual Model No.: LEA40T3 Back Side Chapter 3. Disassemble and Assemble 3-1. Remove the Stand 1. Lay down the unit so that back cover faces upward 2. Remove the Five screws from the back cover which are indicated with the circles in the picture above.
  • Page 12: Remove The Power Cord

    Service Manual Model No.: LEA40T3 3-2. Remove the Power Cord 2. Then remove the back cover from the unit. Remove the screw indicated by the red circles in below picture. Then remove the power cord. 3-4. Remove the Mainboard Remove the five screws indicated by the red circles in below picture.
  • Page 13: Remove The Keypad

    Service Manual Model No.: LEA40T3 3-8. Remove the Stand backstop Remove the six screws indicated by the red circles in below picture. Take out the stand backstop. 3-6. Remove the Keypad The Keypad is conglutinated with front frame , just uncover the keypad gently. Then remove the keypad.
  • Page 14: Chapter 4. Location Of Controls And Components

    Service Manual Model No.: LEA40T3 Chapter 4. Location of Controls and Components 4-1. Board Location Parts number Description A Board PANEL B Board Power Board C Board Mainboard 4-2. Main Board CND4 CND5 CND3 CON2 CNA1 CNE2 CNE1...
  • Page 15: Function Description

    Service Manual Model No.: LEA46T3 4-2-1. Function Description: Main Board Process signal which incept from exterior equipment then translate into signal that panel can display. 4-2-2. Connector defi nition Main board connector Speaker connector (CON2) Keypad Connector (CNE2) Pin number Signal name Pin number Signal name...
  • Page 16: Lcd Panel

    Service Manual Model No.: LEA40T3 CNM801 Pin number Signal name +12V +12V +12V +5VSB EXT_DIM PS-ON INT_DIM BL_ON 4-4. LCD Panel...
  • Page 17: Function Description: Display The Signal

    Service Manual Model No.: LEA40T3 4-4-1. Function Description: Display the signal. 4-4-2. Connector defi nition: CN1 Connector Pin number Symbol Description DC Power Supply DC Power Supply DC Power Supply DC Power Supply DC Power Supply Ground Ground Ground Rx1[0]N LVDS Signal - Rx1[0]P LVDS Signal +...
  • Page 18 Service Manual Model No.: LEA40T3 Pin number Symbol Description Rx3[0]N LVDS Signal - Rx3[0]P LVDS Signal + Rx3[1]N LVDS Signal - Rx3[1]P LVDS Signal + Rx3[2]N LVDS Signal - Rx3[2]P LVDS Signal + Ground Rx3CLK- LVDS Clock - Rx3CLK+ LVDS Clock + Ground Rx3[3]N LVDS Signal -...
  • Page 19 Service Manual Model No.: LEA40T3 CN2 Connector Pin number Symbol Description DC Power Supply DC Power Supply DC Power Supply DC Power Supply DC Power Supply Ground Ground Ground Rx2[0]N LVDS Signal - Rx2[0]P LVDS Signal + Rx2[1]N LVDS Signal - Rx2[1]P LVDS Signal + Rx2[2]N...
  • Page 20 Service Manual Model No.: LEA40T3 Pin number Symbol Description Rx4[1]P LVDS Signal + Rx4[2]N LVDS Signal - Rx4[2]P LVDS Signal + Ground Rx4CLK- LVDS Clock - Rx4CLK+ LVDS Clock + Ground Rx4[3]N LVDS Signal - Rx4[3]P LVDS Signal + Rx4[4]N LVDS Signal - Rx4[4]P LVDS Signal +...
  • Page 21: Chapter 5. Installation Instructions Ch

    Service Manual Model No.: LET40T3 Chapter 5. Installation Instructions 5-1. External Equipment Connections Accessories User's Guide Batteries Remote Control Antenna Connection: Connect one end of a coaxial cable (not included) to the ANT IN jack on the back of your TV/DVD combo, then connect the other end of the cable into the antenna or cable TV wall outlet.
  • Page 22: Choose Your Connection

    Service Manual Model No.: LET40T3 If you need to split the antenna signal to connect two TVs, install a two-way splitter. Choose Your Connection There are several ways to connect your television, depending on the components you want to different ways to connect your TV with different input sources. Choose the connection which is best for you.
  • Page 23 Service Manual Model No.: LET40T3 Connecting a VCR with an S-Video cable An S-Video connection provides better video than a standard AV connection. To connect a VCR with an S-Video cable: 1. Make sure that your TV/DVD combo and the VCR are turned off; 2.
  • Page 24: Chapter 6. Operation Instructions Ch

    Service Manual Model No.: LEA32T3 Chapter 6. Operation Instructions 6-1. Front Panel Controls...
  • Page 25: Hdmi Connections 5-2

    Service Manual Model No.: LEA32T3 6-2. Back Panel Controls...
  • Page 26: Setting Up Your Remote Control

    Service Manual Model No.: LEA32T3 6-3 Setting Up Your Remote Control After being setting up properly, your remote control can operate in six different modes: TV, VCR, CABLE, DVD, SETBOX or AUDIO. Pressing the corresponding button on the remote control allows you to switch between these modes, Note: The remote control might not be compatible with all DVD Players, VCRs and Cable boxes.
  • Page 27: Chapter 7. Electrical Parts Ch

    Service Manual Model No.: LEA32T3 Chapter 7. Electrical Parts 7-1. Block Diagram...
  • Page 46: Wiring Connection Diagram 7-3

    PANEL POWER Speaker Wire SUPPLY Connection CNM801 Wire(12V/5V ) PD801 CN10 CN27 Power Cord LVDS Wire Mainboard LVDS Wire Assembly CNB3 Connection Wire ( Control ) CNB4 Remote Control Board Assembly CNE2 CNE3 Connection Wire(Lamp ) Connection Wire(Remote ) Speaker Connection Wire(Lamp) 0090402750 Connection Wire(Remote )...
  • Page 47: Service Mode

    Service Manual Model No.: LEA40T3 Chapter 8. Measurements and Adjustments 8-1. Service Mode 8-1-1.How to enter into Service Mode The way to the factory mode menu: 1st, press menu, 2en, input 8893, Finished these operations ,system will be into the factory mode menu. At the end of the main factory menu, you can see the edition of the software, like this”...
  • Page 48: Video

    Service Manual Model No.: LEA40T3 8-2-2. Video Color Temperature This page is control the Color Temperature, and the picture size. Picture Mode This page is control the picture effect , like Brightness,contrast,color,sharpness.
  • Page 49: Audio

    Service Manual Model No.: LEA40T3 8-2-3. Audio This page is control the sound effect ,from 100Hz to 10KHz. 8-2-4. Software UpDate NOTE : After software update ,turn to the Factory In this page , you just consider the software Setting 1 page reset all. update function.Plug USB into the 1st USB port ,select "SOFTWARE UPDATE"...
  • Page 50: Chapter 9. Trouble Shooting Ch

    Service Manual Model No.: LEA40T3 Chapter 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged Verify if the television is properly supplied power No picture/ No sound Verify if electricity is available. Verify if correct signals are input Press INPUT button to change signal input to TV input Blank screen Restart the television of power supply is interrupted...
  • Page 51: Mainboard Failure Check

    Service Manual Model No.: LEA40T3 9-3. Mainboard Failure Check Symptom: No Sound No Sound (All Mode) Fail Check the input Change Source input Source Pass Fail Check Re-soldering or change input/output IC U13 Pass Fail Check Re-soldering or change input/output IC U55 Pass Fail...
  • Page 52: Pannel Failure

    Service Manual Model No.: LEA40T3 9-4. Pannel Failure Failure Mode...
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