Haier LE42U6500TF Service Manual
  1. Manuals
  2. Brands
  3. Haier Manuals
  4. LED TV
  5. LE42U6500TF
  6. Service manual
Haier LE42U6500TF Service Manual

Haier LE42U6500TF Service Manual

Msd6486 chassis
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
LED TV
LE42U6500TF
Model No.
Chassis
MSD6486
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.

Advertisement

Table of Contents
loading

Related Manuals for Haier LE42U6500TF

Summary of Contents for Haier LE42U6500TF

  • Page 1 SERVICE MANUAL LED TV LE42U6500TF Model No. Chassis MSD6486 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.

  • Page 2: Table Of Contents

    Service Manual Model No.: Chapter 1: General Information 1-1. Table of Contents 1. General Information................1-1. Table of Contents 1-2. General Guidelines 1-3. Important Notice 1-4. How to Read this Service Manual ..................3. Location of Controls and Components........... 3-1. Board Location 3-2.
  • Page 3 Service Manual Model No.: 8. Measurements and Adjustments..…………......8-1. How to enter into the factory model 8-2. How to update software 8-3. How to enter into the Hotel Model 9. Trouble-shooting………….............. 9-1. Simple Check 9-2. Main Board Failure Check 9-3. Panel Failure - 02 -...

  • Page 4: General Guidelines

    Service Manual Model No.: 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 Service Manual Model No.: 1-3-6 Safety Check after Repairment 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.
  • Page 6 Service Manual Model No.: 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 7: How To Read This Service Manual

    Service Manual Model No.: 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: each icon is described in the table below: Note:...
  • Page 8 Service Manual Model No.: Model LE42U6500TF Screen Size 2 inch Aspect Ratio 16:9 Resolution (GRAY TO Response Time (ms) GRAY) Angel of View 160°/150° Color Display 16.7M No. of Preset Channels 510(DTV);100(ATV) OSD Language English Color System PAL/NTSC/SECAM Audio System...

  • Page 9: Location Of Controls And Components

    Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location A Board Description A Board Mainboard Power Supply B Board 3-2 Main Board - 08 -...
  • Page 10 Service Manual Model No.: 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 Keypad and remote connector (CN508) Pin number Signal name Description KEY1 KEY0 POWER FOR REMOTE...
  • Page 11 Service Manual Model No.: 3-4. LED Panel - 10 -...
  • Page 12 Service Manual Model No.: 3-4-1.Connector de finition Symbol Description Symbol Description DC power supply R1B_P LVDS Signal + DC power supply Ground DC power supply R1C_N LVDS Signal - DC power supply R1C_P LVDS Signal + Ground Ground Ground R1CLK_N LVDS Clock - Ground R1CLK_P...

  • Page 13: Disassemble And Assemble

    Service Manual Model No.: 4. Disassemble and assemble 4-1 Remove the Pedestal faces upward 4-2Remove the Back Cover unit. 4-3. Remove the adhesive tape Remove the adhesive tape indicated on the - 12 -...

  • Page 14: Remove The Main Board

    Service Manual Model No.: 4-4 Remove the Main board CN601 CN508 CN202 PCN3 CN800 CN805 4-5 Remove the speaker Take out the speaker - 13 -...

  • Page 15: Remove The Remote Control Board

    Service Manual Model No.: 4-6 Remove the remote control take out the remote control board - 14 -...

  • Page 16: Installation Instructions

    Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Accessories Battery User GUIDE 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 17 INSTALLATION ANTENNA * The TV appearance subject to material object. Note: Aerial connections: IEC(female). Input impendance: 75 unbalanced. STEPS: Be sure both the TV and computer are Power off. 1.Connect VGA and audio cable 2.Connect power cord 3.Power on the TV, switch to PC mode 4.Power on the PC This sequence is very important.
  • Page 18 INSTALLATION SUPPORTED MODE (PC) V.Freq.(Hz) H.Freq.(KHz) RESOLUTION 640*480 31.47 800*600 37.88 1024*768 48.36 1366*768 47.71 1280*1024 63.98 1920*1080 67.5 (Only for 40") NOTE: PC V.Freq.(Hz) not more than 60Hz. PRESET MODE (HDMI) V.Freq.(Hz) H.Freq.(KHz) RESOLUTION 800*600 37.88 1024*768 48.36 1366*768 47.71 47.3 1280*768...
  • Page 19 Service Manual Model No.: Green (Y) Blue (Pb/Cb) W White(AUDIO-L ) Red (AUDIO-R, Pr/Cr) Y Yellow (VIDEO) CVBS, DVD Player or other machine with CVBS/S-Video. Amplifier AC-INPUT 100-240V~ 50/60Hz DIGITAL AUDIO OUTPUT VIDEO YPbPr SCART (COAXIAL) CVBS, DVD Player or other machine with YPbPr/YCbCr.

  • Page 20: Hdmi Connections

    Service Manual Model No.: 5-2 HDMI Connections When the source device(DVD player or Set Top Box) supports HDM How To Connect 1. Connect the source device to HDMI port of this TV with an HDMI cable(not supplied with this product). 2.
  • Page 21 Service Manual Model No.: 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) - 20 -...
  • Page 22 Service Manual Model No.: Power source TO USE AC POWER SOURCE Use the AC polarized line cord provided for operation on AC. Insert the AC cord plug into a standard polarized AC outlet. NOTES: Use the attached power cord only. electrician replace the obsolete outlet.

  • Page 23: Operation Instructions

    S e r v i c e M a n u a l M o de l N o. : 6. Operation Instructions 6-1 Front panel controls KEYBOARD Front panel SOURCE MENU V- CH- CH+ Standby 1．SOURCE： Display the input source menu. 2．MENU：...
  • Page 24 Service Manual Model No.: 6-3 Setting Up Your Remote Control SCREEN Press to change picture aspect ratio. Press to open the on-screen menu.In teletext mode,press to open the INDEX page. Press to navigate the on-screen menu. Press to confirm a selection. Press to return to the previous screen.In teletext mode,press to enter mix mode.
  • Page 25 Remote Control TELETEXT Teletext is an information system broadcast by certain channels which can be consulted like a newspaper. It also offers access to subtitles for viewers with hearing problems or who are not familiar with the transmission language(cable networks, satellite channels, etc.) Press: You will obtain : This is used to call or exit teletext modes.

  • Page 26: Wiring Connection Diagram

    Service Manual Model No.: 7-3 .Wiring Connection Diagram NO.Name Connection Wire(For Speaker) Connection Wire(Power For Panel) LVDS Wire Connection Wire(For Remote and Keyboard) - 36 -...

  • Page 27: Measurements And Adjustments

    Service Manual Model No.: Measurements and Adjustments Installation Guide Press "OK" to enter the next prompt menu The installation guide only appear when the TV first time turn on or reset to factory set. Shop mode is the most energy mode. Continue? Please select an OSD language Cancel...
  • Page 28 DTV Completed Initial Quick Setup. tuning. An installation reminder will appear the next time Enjoy your Haier TV you turn on the TV. Press OK to Exit 7). After tuning is complete, the channels are arranged in a 1.
  • Page 29 Operation 1.2 )Auto Tuning (DVB-C) 1). Press the MENU button and then press the▼▲ buttons Germany Italy Norway to select the CHANNEL menu and then press the OK button. 2). Press the▼▲buttons to select Auto Tuning and then Greece Poland Luxembourg press the OK button.
  • Page 30 Operation 2). Press the▼▲buttons to select DTV Manual Tuning 3). The CADTV Manual Tuning screen will pop up. and then press the OK button. Press the▼▲buttons to select(Frequency /Symbol (ks/s/QAM Type QAM) press the OK button to commence CHANNEL the search of that channel. When the signal has been Auto Tuning DTV Manual Tuning tuned, the picture and signal strength will be displayed...
  • Page 31 Operation Move: 3.SOUND MENU Use the Arrow Buttons to select the channel you wish to The third item of the MENU is the SOUND MENU. move. Then press the Yellow Button to select Move You can adjust the sound effect here such as function.
  • Page 32 Operation Automatic Power-down The default pass word is 0000, If you forget the 1.If after 4 hours from switch on and no changes have password, you can use the super password:9443. been made to the TV, for example no channel or volume Block program: Press ▼▲...
  • Page 33 Operation 8.PVR function 1.Prepare to record the program Select Disk PVR function only works in DTV. Check PVR File System Start From OPTION MENU enter into PVR File System USB Disk In “OPTION MENU”, please choose “check Format PVR File System”. Click “OK”, until Time Shift Size Speed “checking”change into “Success”.
  • Page 34 Operation 2.Record the program (Suggest to format the device by “High Speed Fs...”, As playing the DTV source, choose the channel and which can speed up the record.) ● ● click “ record”, the record frame will pop up. Click ” Format disk record”...
  • Page 35 Operation 9.Timeshift function Prepare to record the program This TV allows you to pause and record the Please do not unplug the USB storage device currently watched digital program to a USB when the Time Shift function is activated. storage device, and to resume to the point where it was paused.
  • Page 36 Operation Time Shift limitations: 1. When the Time Shift feature is activated, only the PLAY/PAUSE/STOP/FWD/REV/ VOL+/VOL-/MUTE keys and some basic operation keys (OK/EXIT/navigation keys) are available. 2. Video playback may not be smooth and skip if USB recording speed does not meet the minimum requirements .
  • Page 37 OK button to enter the USB menu. Pause Prev. Next Stop Repeat ALL Set A Haier Innovation Life ◀▶ Press to select the function icon, press OK button to confirm the function. ▼ Press or EXIT button to exit the control bar except for music.

  • Page 38: How To Enter Into The Factory Model

    Service Manual Model No.: 8 8 8 . . . 1 1 1 H H H o o o w w w t t t o o o e e e n n n t t t e e e r r r i i i n n n t t t o o o t t t h h h e e e f f f a a a c c c t t t o o o r r r y y y m m m o o o d d d e e e l l l 8.1 How to enter into the factory model 1.

  • Page 39: How To Update Software

    Service Manual Model No.: 8.2 How to update software Haier MSD308C F/W upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Prepare a USB memory . 1.2 Copy the software file (merg.bin) from your computer to the USB memory, and remove it from computer’s USB port!

  • Page 40: How To Enter Into The Hotel Model

    Service Manual Model No.: 8.3 How to enter into the hotel model 1. You can press "source-1-0-0-1" to go into the hotel model. Presse the key "exit" to shut the hotel model. Content: 1.Hotel Mode: Hotel mode switch Panel key lock 2.Panel Key Lock: Hotel mode can adjust the maximum volume 3.Max Volume:...

  • Page 41: Trouble-Shooting

    Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 51 -...

  • Page 42: Main Board Failure Check

    Service Manual Model No.: 9-2. Main board failure check No picture but have sound test if PU6 Pin5（3.3V）、 Pin9 normally （12V ） Check if there is +43V at Replace PU6 PEC8 Check if there is +12V at Pin35 in CN202 Check if PQ6 、...
  • Page 43 Service Manual Model No.: AV No sound but have picture Check if there is sound input signal Check the input source Check if there is signal at C245 and C247 Check if there is signal at C607 and C605 Change U201 Check if there is signal at LD5,LD7,LD8,LD9 Change UD3 Check LD3 voltage...
  • Page 44 Service Manual Model No.: No sound No picture NO LED indicate Check PD15(24V) Change Mainboard   Check PD3(12V) Change Mainboard Check LD22(3.3V) Change UD8 Check Q101(3.3V) Change Q101 Change U107 Check C138(1.15V) Check CD85(1.5V) Change UD7 Check R603(3.3) Change Q101 Still having  problems Change mainchip Change Mainboard...
  • Page 45 Service Manual Model No.: Poor sound Poor sound Verify if sound system is Change sound  correct . system For ease of use, recommend that customer format the picture and sound settings in the automatic option. Update the software and  Still having  make the reboot;          or  problems change the Mainboard - 55 -...
  • Page 46 Service Manual Model No.: No color for some channel program (black and white) No color for some channel program (blac k and white) Verify if the same Check out of picture and sound  problem exists in other system of this channel channels check out of picture Change the channel to the right sound  and sound system system (PAL‐M/N  NTSC‐M) Refer to relative instructions in the...
  • Page 47 Service Manual Model No.: How to know whether the Power board is broken? Check if the power cord Reconnect the power cord with the  connect well? outlet or Power board. EC805 whether have F800 or D803/D804/D805/D807 300V Power on and check Replace PD3 PD3 whether have 12V Still having  Check if Main board / LVDS wire / Panel are in  problems good condition ? - 57 -...
  • Page 48 Service Manual Model No.: the unit can not T2 signal receive Check C60 (1.2V) Change U7   Check C58 3.3V Change Change U4 Change mainchip Change Mainboard U201 Still having  change the maiboard problems - 58 -...
  • Page 49 Trouble Shooting • Mainboard not work Panel not work  • 1. check if there is +12V/+5V output  1. check if the voltage input and   on the power board output of voltage boost IC of the  • 2.Verify if the DC/DC convertors have  backlight is OK. the right output (5V,3.3V,1.5V,1.15V) 2.Verify if the Mainboard output the   • 3.Verify if the Mainchip(MSD308BEM),   right On/Off signal to power board;      AudioAMP…solder well; 3.Verify if the Mainboard output the   • 4.Verify if the FLASH(U6) has the right  LVDS singal to panel T‐con board software and work well; 4.Verify if the software is the right   • 5.Verify if the Y1(Crystal) has the right  version of this model. frequency 5.Change the LVDS wire to check if it’s  ...
  • Page 50 Trouble Shooting Power board not work  1.Verify if the power cord connect well?  2. check if +5Vstandby of the power board  part is functioning normally;  3. Check if voltage of the POWER ON/OFF of  the power board part is on the high level  voltage 4. +12V/+5V output ;check if there is  +12V/+5V output on the power board.  5.Check if Main board / LVDS wire / Panel  are in good condition ? - 60 -...

  • Page 51: Panel Failure

    Service Manual Model No.: 9-3. Pannel failure Failure Mode Part Name Description Phenomena Failure cause Block Defect :TCP cracking or cracking Dim or L/D :TCP Sunken V B/D Vertical bar :TCP lead cracking :ACF bonding short :Awful environment and something electric enter V Dim Vertal gray line into LCD...
  • Page 52 Service Manual Model No.: Part Name Description Phenomena Failure cause I n c o m i n g I n s p e c t i o n Standard Bright dot dark dot in Dot Defect pannel Bladder between Polarizer and top glass Polarizer Bubble Bladder in Polarizer...
  • Page 53 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause White Screen B/L normal, only white screen display M a y b e c a u s e d by surge current Black Screen B/L normal, and EDS only Black screen display FIIcker...
  • Page 54 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Mechanlcal When Caused Nolse turn panel,appear b y M e c h a n i c a cacophony noise of backlight unit Ripple Connectric circle Causeed by between mechanism and pannel B/L off...
  • Page 55 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Brightness B/L unit badness at bottom of LCM Light leakage brighter than normal B / L b r i g h t n e s s Sheet in B/L unit Mechanlcal or B/ is uneven asymmetric...
  • Page 56 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com Printed in China...

Table of Contents