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LG 43UD79 Service Manual

LG 43UD79 Service Manual

Chassis lm 6ob
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LED MONITOR
SERVICE MANUAL
SERVICE MANUAL
CHASSIS : LM 6OB
MODEL : 43UD79
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69406825(1702-REV00)
Internal Use Only

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Summary of Contents for LG 43UD79

  • Page 1 Internal Use Only LED MONITOR SERVICE MANUAL SERVICE MANUAL CHASSIS : LM 6OB MODEL : 43UD79 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69406825(1702-REV00)
  • Page 2: Table Of Contents

    SPECIFICATION ..................4 Firmware Upgrade Method ............... 8 BLOCK DIAGRAM ................. 14 EXPLODED VIEW .................. 15 DISASSEMBLY ..................16 TROUBLE SHOOTING GUIDE .............. 18 - 2 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 3: Safety Precautions

    When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 4: Specification

    SPECIFICATION Copyright © LG Electronics. Inc. All rights reserved. -4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 Copyright © LG Electronics. Inc. All rights reserved. -5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 In case of *2) Timing, HDMI1/2 port does not support. In case of HDMI 3,4 port can support *2) Timing , When select On the “HDMI ULTRA HD Deep Color” menu. Copyright © LG Electronics. Inc. All rights reserved. -6 - LGE Internal Use Only...
  • Page 7 3HDMI Video input(Refer to Manual) Factory support mode Horizontal Vertical Remarks (Preset Mode) Frequency(kHz) Frequency(Hz) 480p 31.5 720p 45.0 1080p 67.5 2160p -7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8: Firmware Upgrade Method

    How to download monitor Firmware How to do ISP Step1. Connect Realtek Jig to the monitor and PC. r and PC. Step2. Install like as attached file.
  • Page 9 How to download monitor Firmware Step3. Run “RTDToll” Step4. [ISP] Icon Click...
  • Page 10 How to download monitor Firmware Step5. Check “Access method”. LG Monitor JIG(P/N RAD33028001) [LG Monitor JIG: FTDIUsb]...
  • Page 11 How to download monitor Firmware Step6. Option Check Enter [ Communication Option ] menu and then uncheck the [ Check ACK] Set User data(FE2P) area select option...
  • Page 12 How to download monitor Firmware Step7. Following below step 1 Check the Bank 0 checkbox 2 Click [ … ] button 3 select the SW update file( *.bin or *. hex) and then click [ open ] button.
  • Page 13 How to download monitor Firmware Step8. ISP Click Thunder icon button you see the progress bar and the status window. after finishing SW update, you see the [success] message on status window.
  • Page 14: Block Diagram

    BLOCK DIAGRAM Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15: Exploded View

    Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. -15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 1ea fix Waring: use hand driver in the Tool Description bottom of joystick cover screw 2ea General drivers (Screw Torque : 4~6kgf) - 16 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 17: Disassembly

    2. Speaker bracket L/R screw 4ea disassemble 2. Disassemble LVDS cable 3. Disassemble PCB bracket Tool Description waring: disassemble LVDS cable when rear shield up General drivers - 17 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...
  • Page 18: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER Copyright © 2010 LG Electronics. Inc. All right reserved. -18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 2. NO SCREEN ON Copyright © 2010 LG Electronics. Inc. All right reserved. -19 - LGE Internal Use Only Only for training and service purposes...
  • Page 20 3. No Video Copyright © 2010 LG Electronics. Inc. All right reserved. -20 - LGE Internal Use Only Only for training and service purposes...