LG 24CQ650N Service Manual
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LG 24CQ650N Service Manual

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LG Cloud Device
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL71804621 (2203-REV00)
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.
Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
LM22G
24CQ650N
24CQ651N
24CQ650W
24CQ651W
24CQ650N-6N
24CQ651N-6N
24CQ650W-AC/ AP
24CQ651W-BP/ BR

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Summary of Contents for LG 24CQ650N

  • Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

  • Page 2: Table Of Contents

    SPECIFICATION ..................4 BLOCK DIAGRAM ................... 7 EXPLODED VIEW ..................8 TROUBLE SHOOTING GUIDE ..............9 DISASSEMBLE GUIDE ............APPENDIX SOFTWARE UPDATE GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics Inc. All rights reserved. Only 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 training and service purposes.

  • Page 4: General Specification

    56 - 75 Hz Max. 1920x1080 @ 75Hz Resolution HDMI Recommend 1920x1080 @ 60Hz Power Input Voltage Voltage: AC 100 - 240Vac, 50-60Hz, 1.5A - 4 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 5 1050 H(Pixels) 148.5 67.5 2200 1920 1920 x 1080 V(Lines) 1125 1080 H(Pixels) 174.5 83.89 2080 1920 1920 x 1080 V(Lines) 74.97 1119 1080 - 5 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 6 Factory support mode Horizontal frequency Vertical frequency HDMI (Preset Mode) (KHz) (Hz) 480P 31.5 576P 31.25 720P 37.5 720P 1080P 56.25 1080P 67.5 (Recommend Mode) - 6 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 7: Block Diagram

    BLOCK DIAGRAM - 7 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 8: Exploded View

    It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 9: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE First of all, Check whether there is SVC Bulletin in GSCS System for these model. 1. No Power On Cold-Boot Power Sequence - 9 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 10 - 10 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 11 2. xxCQ65- No Screen On - 11 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 12 3. xxCQ65- No Video - HDMI - 12 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 13: Disassemble Guide

    DISASSEMBLE GUIDE Copyright ⓒ 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 14: Back Cover

    Disassemble 1. Stand 2. Back Cover 3. Cable 4. Side USB Copyright ⓒ 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 15 Disassemble 5. Webcam 6. Speaker 7. Rea Shield 8. Control 9. Module Copyright ⓒ 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 16 Disassemble 10. W-LAN, Memory, SSD, Main B’d Copyright ⓒ 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 17: Software Update

    SOFTWARE UPDATE 1. Subject : SW Upgrade Guide 2. Applied Model : xxCQ650 / xxCR650 / xxCR670 3. Check the BIOS Version -Press the Power button and press the [F2] Key to enter the “Setup Menu” -Choose the “main > System Information”, it will be shows the below screen. -Check the BIOS Version 4.
  • Page 18 SOFTWARE UPDATE 5. DMI String Update -Use the same tool for update the BIOS to update the DMI String -Run the CMD by run with administrator in the folder of BIOS Flash File Serial Number Update -If want to insert the Serial Number such as “1234567890”, please refer the below to update it. -In CMD dialog, run the [WinFlash64.exe /patch /dss “1234567890”] Product Name Update -If want to insert the Product name such as “CQ600”, please refer the below to update it.
  • Page 19 SOFTWARE UPDATE 7. How to install the windows image 3) Go to the image directory and run image write script file (ex. cd CQ6_LG_IMAGE\24CQ650_19044IE_EN08\ 24CQ650_19044IE_EN08.bat)
  • Page 20 SOFTWARE UPDATE...
  • Page 21 SOFTWARE UPDATE...
  • Page 22 SOFTWARE UPDATE 8. How to check the windows image version...
  • Page 23 SOFTWARE UPDATE 9. Firmware Version Check -After power On, Change to HDMI Mode on the Input Menu -DC power off(by Power button) -Press the Power button and Menu Key at the same time during 3 sec -After Screen On, press the Menu Key to shows the OSD button 10.

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