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Haier HL42XK1 Service Manual

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COLOR TV
Model No. : HL42XK1
HL32P1
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 b electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the
product deal with in this service information by anyone else could result in serious injury or death.
limited company
2009 (Qingdao Electronics
)
All rights reserved. Unauthorized copying and distribution is a violation of
law.
1

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Summary of Contents for Haier HL42XK1

  • Page 1 COLOR TV Model No. : HL42XK1 HL32P1 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 b electricity should be serviced or repaired only by experienced professional technicians.

  • Page 2: Table Of Contents

    CONTENTS Table of conents ………………....…………………………….2 1. General Information …………....…………………………..3 1-1. General Guidelines...…………………………………………………..3 1-2. Important notice………………………………………………………...3 1-3. How to read this Service Manual……………………………………..4 2. Specifications ……………………………………………....6 3. Location of Controls and Components ......7 3-1.Board Location…………………………………………………………..7 3-2. Main Board & AV Board………………………………………………..7 3-3.
  • Page 3 ............37 8-1-1.How to enter into Service Mode ..................37 8-1-2.How to exit 8-2. Measurements and Adjustments ..........37 9. Trouble shooting ..............43 9-1. Simple check ................43 9-2. Power Supply Board failure check ..........44 9-3. Main board failure check ..............45 9-4. Pannel failure ................47...

  • Page 4: General Information

    1. General Information 1-1 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: How To Read This Service Manual

    1-2-6. Take Care to Deal With The Cathode-Ray Tube In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is se-cured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock.

  • Page 6: Specifications

    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.

  • Page 7: 3-1.Board Location

    3-1 Board Location Parts number Description A Board Main Board B Board Power Board 3-2 Main Board & AV Board 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 board connector Power connectors (CNA1)
  • Page 8 Pin number Signal number +5VSB +12V +12V Notes: CNA1-Pin1:System power on / standby System board will use this pin to control system power. Pin number Signal number Dimming ON/OFF SELECT(NC) Notes: CN1-Pin2: Backlight on/off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path.

  • Page 9: Power Board

    Pin number Signal number ADIN1-K0 ADIN2-K1 Speaker connector(CNC1) Pin number Signal number SPEA_L+ SPEA_L- SPEA_R_ SPEA_R+ Other connectors: CNB2 to Upgrade the program of MTK5380L (U13) AND FLASH (U17) 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. 3-3-2Connectordefinition CON2...
  • Page 10 CON3 CON4 CON5...

  • Page 11: Lcd Panel

    3-4. LCD Panel AU/T420HW02 3-4-1 Function Description: Display the signal. 3-4-2 Connector definition...

  • Page 12: Disassemble And Assemble

    4.Disassemble and assemble...

  • Page 13: Remove The Pedestal

    4-1 Remove the Pedestal Remove the speaker 4-3. Remove the two screw from the speaker indicated on figure above by blue line. 4-4 Remove the Terminal Bracket Remove the four screw from the rear cover indicated with blue line. 4-2Remove the Back Cover Remove the seventeen screw indicated Remove the six screw indicated on the on figure above by blue line.

  • Page 14: Remove The Power Module

    4-5 Remove the power module 4-8 Remove the keypad control Remove the four screw indicated on the figure above by Then remove the power module Remove the two screw indicated on the figure 4-6 Remove the Main board above by blue line. Then remove the keypad module.

  • Page 15: Installation Instructions

    5.installation instruction E x t e r n a l E q u i p m e n t C o n n e c t i o n s Accessories CABLE PICTURE AUDIO HDMI TFT-LCD TV OWNER S MANUAL INPUT MUTE RECALL...
  • Page 16 E x t e r n a l E q u i p m e n t C o n n e c t i o n s NOTE: All cables shown are not included with the TV. Choose Y our Connection There are several ways to connect your television, depending on the components you want to connect and...

  • Page 17: Connecting A Dvd Player

    External A/V Source Setup How to connect Connect the audio and video cables from the external equipment's output jacks to the TV input jacks, as shown in the figure. When connecting the TV to external equipment, match the DVI AUDIO DVI AUDIO jack colors (Video = yellow, Audio Left = white, and Audio Right = red).

  • Page 18: Connecting A Digital Audio Output

    Connecting a DTV(digital TV) This TV can receive Digital Over-the-air/Cable signals without an external digital set-top box. However, if you do receive Digital signals from a digital set-top box or other digital external device, refer to the figure as shown below. This TV supports HDCP (High-bandwidth Digital Contents Protection) protocol for Digital Contents (480p,720p,1080i).

  • Page 19: Connecting A Computer

    Connecting a computer How to connect 1. To get the best picture quality, adjust the VGA graphics card to 1024x768 . 2. Use the TV`s VGA or DVI (Digital Visual Interface)Audio IN port for audio connections, depending on your computer connector.

  • Page 20: Hdmi And Dvi Input

    HDMI and DVI input When the source device(DVD player or Set Top Box) supports HDMI How To Connect 1. Connect the source device to HDMI port of this TV with an HDMI cable(not supplied with this product). 2. No separated audio connection is necessary. How To Use If the source device supports Auto HDMI function, the output resolution of the source device will be automatically set to 1280x720p.

  • Page 21: Cable Sample

    Cable sample HDMI Cable (not supplied with the product) HDMI to DVI Cable (not supplied with the product) Analog Audio Cable (Stereo to RCA type) (not supplied with the product)

  • Page 22: Connecting Headphones

    Connecting Headphones You can connect a set of headphones to your set if you wish to watch a TV programme without disturbing the other people in the room. Plug a set of headphones into the 3.5mm HDMI3 IN HDMI4 IN mini-jack socket on the side panel of the set.

  • Page 23: Operation Instructions

    6. Operation Instructions Basal information TV Side panel controls and connections HL26R1/HL32R1/HL42XR1 HL26K1/HL32K1/HL32XK1/HL42XK1 1.MENU: Menu display. Press to access the on-screen menu display 2.INPUT: Press to access the input source mode. Press repeatedly to change the source to the one you want to watch.

  • Page 24: Back Panel Controls

    Back panel connections DVI AUDIO DVI AUDIO VGA AUDIO VGA AUDIO AUDIO AUDIO VIDEO VIDEO AUDIO AUDIO S-VIDEO S-VIDEO AUDIO AUDIO AUDIO AUDIO Connect various types of digital audio equipment. 1. Digital Audio Output: NOTE: In standby mode, these ports will not work. When using a DVI to HDMI adapter, connect the audio signal to these jacks.

  • Page 25: Setting Up Your Remote Control

    6-3 Setting Up Your Remote Control The remote control cannot be operated unless the batteries are properly loaded. When using the remote control, aim it at the remote sensor on the TV. 1.POWER Function introduction Press to turn on and off the TV. 2.TV DVD SETBOX CABLE VCR To select one of the system modes in which the remote control can be used.

  • Page 26: Electrical Parts

    7. Electrical parts 7-1. Block diagram MTK5380L MT8292 TPA3101 7-2. Circuit Diagram...

  • Page 43: Measurements And Adjustments

    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. 8-1-2.How to exit IF want to exit this factory menu,please press the botton”Exit”...
  • Page 44 8-2-2 Video Auto Color The option could only be used in the VGA and Component model. When we found the color in the two models was abnormal. Then we can use the function to adjust it automatically. Color Temperature The function could adjust the Color Temperature., used when debugging. 8-2-3 Audio Dolby Banner: When turn it “ON”, the model will be in Dolby authentication state.
  • Page 45 Compression: Compression style. RF atv line AV/S-Video/YPbPr/VGA Compression Factor: Compression state. Downmix: output model. MTS System: used when debugging. The parameters only used when debugging, no need to be modified. 8-2-4 Channel Range Scan: The function could make it to search the channels by differentiation the analog and digital channels.
  • Page 46 Factory Scan: According to ANTENNA-ANALOG--- ANTENNA-DIGITAL--- CABLE- ANALOG--- CABLE- DIGITAL to search channels, used only in project debugging. Tuner Diagnostic: Project debugging setting, used to inspect the audio function. 8-2-5Gamma Gamma: Bright GAMMA0.8 Middle default settings in the program Dark GAMMA1.2...
  • Page 47 8-2-6 Backlight Backlight: adjust the backlight . 8-2-7 Function Burning Mode: Turn it “ON” to enter the aging model, This is for factory run-in testing. The screen would display red, green, blue and black screen repeatedly. Each color screen could be exam at that time.
  • Page 48 Clean Storage The function could make the model turn back to the factory default setting.

  • Page 49: Trouble Shooting

    Remark: The date of the chart only is a example, please don’t adjust the factory mode base on it. 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged No Picture,no sound Verify if the television is properly supplied power Verify if electricity is available Verify if correct signals are input Press INPUT button to change signal input to TV input...

  • Page 50: Power Supply Board Failure Check

    Horiaontal/vertical bars Check for local interference such as an electrical appliance or picture shaking power tool. Disconnect the television from power supply and 10 seconds later, connect the television to the power supply. If the problem still exists, contact authorized after-sales service for technical Television out of control assistance.

  • Page 51: Main Board Failure Check

    9-3. Main board failure check State: No Sound No Sound (All Mode) Fail Check the input Change Source input Source Pass Fail Check the input/output Re-soldering or change Of IC U13 of Main B/D IC U13 Pass Fail Check the input/output Re-soldering or change Of IC U55 of Main B/D IC U55...
  • Page 52 State No picture No Raster on Panel Fail Check the backlight B/D Change the backlight B/D Pass Re-soldering or change Fail Check the input/output of IC UA1 and RNA1-17 jack CN3 of Main B/D Pass Fail Check the input/output of Re-soldering or change Jack CN4 of Main B/D IC U13...

  • Page 53: Pannel Failure

    9-4. Pannel failure Failure Mode Part Name Description Phenomena Failure cause Block Defect :TCP cracking or cracking V B/D Vertical bar Dim or L/D :TCP Sunken :TCP lead cracking :ACF bonding short Vertal gray :Awful environment and something electric enter into V Dim line :Mis-align between TCP and Panel...
  • Page 55 wire Without backlight Operation abnormal or systemic noise open shut B/L shutdown in Short bitween lamp housing and wire, Because down sometime consume power too much ,white,balck F/M in B/L unit Rotundity wirelike Failure Mode Part Name Description Phenomena Failure cause Brightness Light bottom of LCM...
  • Page 56 Sincere Forever...

This manual is also suitable for:

Hl32p1Hl32xk1Hl26k1

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