Haier L22C360 Service Manual
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Haier L22C360 Service Manual

Haier L22C360 Service Manual

Mst 6m48 chassis
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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
WARNING
©2009 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
Model No. L22C360
MST 6M48
LCD TV
Chassis

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Summary of Contents for Haier L22C360

  • Page 1: General Information

    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.: 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.: 9. Trouble-shooting………….............. 9-1. Simple Check 9-2. Main Board Failure Check 9-3. Panel Failure - 02 -...

  • Page 4: Table Of Contents

    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.: L22C360 Model Screen Size 21.5inch Aspect Ratio 16:9 Resolution 1366*768 6.5 (GRAY TO Response Time (ms) GRAY) Angel of View Color Display 16.7M No. of Preset Channels 99 OSD Language English Color System Audio System DK, BG, I Audio Output Power 3W×2...

  • Page 9: Location Of Controls And Components

    Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location B Board A Board Part Number Description A Board DC1KK0M0101M Main Board B Board 514C2411M14 Power Board 3-2 Main Board & AV 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 Power connectors (CN101) CN101 Pin number Signal name BRIGHT BL ON POWER ON/OFF +5VSTB +12V +12V...
  • Page 11 Service Manual Model No.: remote connector (CN201) Pin number Signal name Description LED_R LAMP RED LED_G LAMP GREEN REMOTE CONTROL POWER FOR REMOTE Keypad and connector (CN202) Pin number Signal name Description KEY1 KEY0 Speaker connector CN701 Pin number Signal name Description RSPK+ RSPK+...

  • Page 12: Power Board

    Service Manual Model No.: 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. CON5 BL ON +12V +12V +5VSTB POWER ON/OFF - 11 -...

  • Page 13: Lcd Panel

    Service Manual Model No.: 3-4. LCD Panel MTC216TVM-C14H(CMO:V216B1-P13) - 12 -...
  • Page 14 Service Manual Model No.: 3-5 Interface Connections Pin No. Symbol Description Note No Connection No Connection No Connection Ground RX0- Negative transmission data of pixel 0 RX0+ Positive transmission data of pixel 0 Ground RX1- Negative transmission data of pixel 1 RX1+ Positive transmission data of pixel 1 Ground...

  • Page 15: Disassemble And Assemble

    Service Manual Model No.: 4. Disassemble and assemble 4-1 Remove the Pedestal faces upward 4-2Remove the Back Cover Remove the eight screw indicated on unit. - 15 -...

  • Page 16: Remove The Terminal Bracket

    Service Manual Model No.: 4-4 Remove the Terminal Bracket 4-5 Remove the power module 4-6 Remove the Main board CN201,CN202,CN205,CN101 CN701,CN403,CN102 - 16 -...

  • Page 17: Remove The Speaker

    Service Manual Model No.: 4-7 Remove the speaker Take out the speaker 4-8 Remove the remote control Remove the screw, take out the remote control board - 17 -...

  • Page 18: 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 19 Service Manual Model No.: AV EQUIPMENT This TV provides two groups of AV, one group of YPbPr for convenient connection to VCR, DVD or other video equipment. Please refer to the owner's manual of the equipment to be connected as well. You can use the input terminals on TV set rear as follows.
  • Page 20 Service Manual Model No.: 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. AC-INPUT HDMI1 INPUT HDMI2 INPUT...

  • Page 21: 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 22 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) - 22 -...
  • Page 23 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 24: Operation Instructions

    Service Manual Model No.: 6. Operation Instructions Basal information 6-1 Front panel controls SOURCE MENU VOL+ VOL- STANDBY 1 SOURCE: Display the input source menu. 2 MENU: Display main MENU. 3 CH+/CH- In TV mode, press "CH+" or "CH-" to change the channel up and down. In MENU mode, press "CH+"...

  • Page 25: Universal Remote Control

    Service Manual Model No.: 6-3 Setting Up Your Remote Control 1:POWER To set the TV to standby or power on. 2:NUMBER KEY For direct access to channels. 3:MENU To display the menu. 4:CURSOR To move within the menu. 5:CH. LIST To display the channel list.

  • Page 26: Electrical Parts

    Service Manual Model No.: 7. Electrical parts 7-1. Block diagram Schematics BlockDiagram LED PANNEL BACKLIGHT flash Antenna in TUNNER lvds HDMI YPbPr MST6M48 SCART TPA3113 SPEAKER POWER DDR2 512M TITLE: Cover page Design: SuHaoFeng MODEL:MST6M48 Checked: PART NO.: DWG NO.: MST3208-YL01-01 Apprd: SHEET: 0 pages 8 VER: 1.0...

  • Page 27: Circuit Diagram

    Service Manual Model No.: 7-2. Circuit Diagram - 27 -...
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  • Page 34: Tv Operation

    Service Manual Model No.: 8.TV OPERATION 1. CHANNEL MENU Delete Delete The first item of the MENU is channel menu ( for Press teletext red button, it will shows red delete TV source only) . cursor. You can search channels and edit programs here. Press to choose the program.
  • Page 35 3. SOUND MENU The third item of the MENU is the SOUND MENU. OSD Language English You can adjust the sound effect here such as Restore Factory Default treble, bass, balance etc. Press to move, press OK button to confirm, and press to adjust.
  • Page 36 Service Manual Model No.: Press to select the function icon, press OK button to confirm the function. Press or EXIT button to exit the control bar. NOTE: You can adjust the audio track, subtitle, or program in the Info menu while Playing the video file. Choose the Info icon and press OK can display the Info MENU.
  • Page 37 Service Manual Model No.: How to update software Haier MST6M48 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 38 Service Manual Model No.: 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. content: 1: ADC setup: set ADC value of YUV,VGA. It can also be auto-set. Adopt 100% color bar to yuv and Checkerboard signal to vga.
  • Page 39 Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 39 -...
  • Page 40 Service Manual Model No.: 9-2. Main board failure check State: No Sound No Sound (All Mode) fail Check the input Change Source input Source pass fail Check Re-soldering or change IC U705 input/output IC U13 pass fail Check Re-soldering or change input/output IC U706 IC U55...
  • Page 41 Service Manual Model No.: 1) Black creen Is power LCD normal? CN101 CN101 Check and the Q101,Q107 U102 for U10 U102 2) White screen on VCC pins of CN205 Check if is working Q102 Signal on CN205 Check if Q102 -41 -...
  • Page 42 Service Manual Model No.: 3) Panel display abnormally connector is at normal level CN205 - 42-...
  • Page 43 Service Manual Model No.: 4) No sound No sound Check the input Check if there is sound input source signal Check if the volume control is Reset at 0 level or muted volume Check the Check if there is output at CN701 speakers Check if the power supply...
  • Page 44 Service Manual Model No.: 5 TV failure TV no channel Fix the RF Check if there is RF signal input Check the power Check if there is supply circuit to +5V at PIN7 of this PIN7 TUNER1 Check if there is I2C signal at PIN4 &...
  • Page 45 Service Manual Model No.: 6) HDMI no picture or picture abnormal CN302 RX357,RX358,RX359 RX342,RX343,RX344,RX345 Q303 - 45 -...
  • Page 46 Service Manual Model No.: 7) PC no picture or picture abnormal - 48 -...
  • Page 47 Service Manual Model No.: 8) YPBPR, AV, SCART no picture or picture abnormal Check Y - 49 -...
  • Page 48 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 49 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 50 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 51 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 52 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/ asymmetric is uneven...
  • Page 53 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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