Haier LE22T1F Service Manual
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Haier LE22T1F Service Manual

Haier LE22T1F Service Manual

Msd3391 chassis
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SERVICE MANUAL
LED TV
Model No.
LE22T1F
MSD3391
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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Summary of Contents for Haier LE22T1F

  • Page 1 SERVICE MANUAL LED TV Model No. LE22T1F MSD3391 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.

  • 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 LE22T1F Screen Size 21.5 inch Aspect Ratio 16:9 Resolution 1920*1080 5.0 (GRAY TO Response Time (ms) GRAY) Angel of View 176o Color Display 16.7M No. of Preset Channels Cable :1-135/ Air: 2-69(ATV&DTV) OSD Language Korea...

  • 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 Integration Mainboard DH1KM0M0201M 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. Main board connector Keypad andremote connector (CN203) Pin number Signal name Description LAMP RED LED_R LED_G LAMP GREEN STANDBY REMOTE CONTROL...

  • Page 11: Lcd Panel

    Service Manual Model No.: 3-3. LED Panel MTC215LED-C04F(M215HGE-P02) - 10 -...
  • Page 12 Service Manual Model No.: 3-4-1.Connector de finition Name Description RXO0- Negative LVDS differential data input. Channel O0 (odd) RXO0+ Positive LVDS differential data input. Channel O0 (odd) RXO1- Negative LVDS differential data input. Channel O1 (odd) RXO1+ Positive LVDS differential data input. Channel O1 (odd) RXO2- Negative LVDS differential data input.

  • 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 CN203 CN807 CN204 CN800 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 Service Manual Model No.: ANTENNA Note: Aerial connections:IEC(female). Input impendance:75 unbalanced. STEPS: Be sure both the TV and computer are set to Power off. 1.Connect VGA and audio cable. 2.Connect the power cord. 3.Power on the TV, switch to PC mode. 4.Power on the PC.
  • Page 18 INSTALLATION PRESET MODE V.Freq.(Hz) H.Freq.(KHz) RESOLUTION 31.47 720*400 640*480 31.47 37.50 640*480 800*600 37.88 800*600 46.88 1024*768 48.36 56.48 1024*768 1024*768 60.02 1280*1024 63.98 1280*1024 80.00 - 17 -...
  • Page 19 INSTALLATION AV EQUIPMENT You can use the input terminals on TV set rear as follows. PC AUDIO HEADPHONE COAXIAL HDMI1 HDMI2 HDMI VIDEO EQUIPMENT with YPbPr Yellow (video) White(audio L) Red(audio R or Pr) Blue(Pb) Green(Y) VIDEO VIDEO EQUIPMIENT TO VIDEO OUTPUTS TO AUDIO OUTPUTS It can be connected to the following appliances: VCR, multi disc player, DVD, camcorder,...

  • 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

    Service Manual Model No.: 6. Operation Instructions 6-1 Front panel controls KEYBOARD SOURCE MENU VOL+ VOL- STANDBY 1 SOURCE ． ： Display the input source menu.In YPbPr YPbPr STRENGTH STRENGTH HDMI HDMI CH LIST CH LIST “ ” MENU mode,press SOURCE to DISPLAY DISPLAY confirm the selected item.

  • Page 24: Universal Remote Control

    Service Manual Model No.: 6-3 Setting Up Your Remote Control POWER Press to power ON/OFF (standby) the TV. NUMBER KEY Press to enter the TV channel number and select a channel (Press " " to choose the sub-channel). Press to display the on screen display (OSD) menu or return to the previous menu.

  • Page 25: Electrical Parts

    Service Manual Model No.: 7. Electrica l p arts Circuit Diagram Circuit Diagram Circuit Diagram 7-1. - 24 -...

  • Page 26: Wiring Connection Diagram

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  • Page 31 Service Manual Model No.: 7-2 .Wiring Connection Diagram Name Connection Wire(For Speaker) Connection Wire(Power Wire) LVDS Wire Connection wire(Blacklight ) Connection Wire(For Keyboard and Remote) - 30 -...

  • Page 32: Measurements And Adjustments

    Service Manual Model No.: Measurements and Adjustments 1. PICTURE MENU Note: In this menu,you can adjust the picture options here, Audio language is available in ATSC/TVmode only. such as contrast, brightness, etc. Auto volume is available only when the input signal volume is too Press to select, press OK to adjust.
  • Page 33 OPERATION OPERATION Content 1). CC Mode: Switch the closed caption mode. 2). Advanced selection: only available in ATSC. Rating Content (Fantasy (Violence) (Sexual (Adult (Sexually 3). Option: Used to edit the CC font. violence) situation) language) suggestive dialog) Note: TV-Y (All 1).
  • Page 34 OPERATION OPERATION Description Rating Air/Cable Cable Auto Scan Exempt: Includes news, sports, documents and other information Favorite programming: talk shows, music videos, and variety programming. Show/Hide Children: Intended for younger children under the age of 8 years. < < DTV Signal Channel Pays careful attention to themes that could threaten their sense of securityand well-being.

  • Page 35: How To Enter Into The Factory Model

    Service Manual Model No.: 8.1 How to enter into the factory model 8.1 How to enter into the factory model 8.1 How to enter into the factory model 1. You can press "source-2-5-8-0" to go into factory setting. Presse the key "exit" to shut the factory setting.

  • Page 36: How To Update Software

    Service Manual Model No.: 8.2 How to update software Haier MSD3391 F/W upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Prepare a USB memory . it from computer’s USB port! Step 2: F/W Upgrade 2.1 AC ON 2.2,then input USB , press "MENU"...

  • Page 37: 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 38: Trouble-Shooting

    Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 37 -...

  • Page 39: Main Board Failure Check

    Service Manual Model No.: 9-2. Main board failure check No picture but h ave sound Chcek if U3 Pin20(3.3V) Pin11(5V) Pin19(5v) Replace U3 or Check if there is U5 Pin2(0.72V) Pin3(5V) +30V at C931 Pin6(5.7V) is normal Pin4(12V) Check if there is +5V at Pin35 in CN204 Check if Q103 、...
  • Page 40 Service Manual Model No.: No sound but have picture Check if there is Check the input source sound input signal check the signal input Check if there is signal at L203 and L205 circuit of L203,L205 Check the signal input Check if there is input at C738 、...
  • Page 41 No sound No picture Check if there is voltage pressure in the pad of the CHANGE L806（12V），L2 Q810 （5V） Check if the voltage Change U1 pressure of J7 Pin2 is high voltage pressure (More than 3V) Change Mainboard - 40 -...
  • Page 42 No sound No picture No light Connect the Check if the power cord power cord to the is correctly connected socket Check if there is voltage Replace D806 or pressure in J3(12V)、 J5(5Vstb) Check if L101（1.32V）、 L102（1.8V）、L103（ Replace 3.3V）、D101（2.5V）is Remote working Control Board Chang U101 OR U102 OR U105...
  • Page 43 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; problems or change the Mainboard...
  • Page 44 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 system of this channel other channels Change the channel to the right check out of picture sound system (PAL-M/N PAL-D/ K ) and sound system...
  • Page 45 How to know whether the Power board is broken? Reconnect the power cord with Check if the power cord the outlet or Power board. connect well? Power on and check if 5V standby on the Replace U1 Power board exists ? Check if there is high Replace U1 level (2.5V-5.0V) at...

  • Page 46: 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 47 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 48 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 49 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 50 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 51 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com Printed in China...

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