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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 : MFL71804647 (2308-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 © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes.
LM22G
24CQ650N
24CQ651N
24CQ650I
24CQ651I
24CQ650N-6N
24CQ651N-6N/ 6P
24CQ650I-6N
24CQ651I-6N/ 6P
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Table of Contents
Related Manuals for LG 24CQ651I
Summarization of Contents
Safety Precautions
General Guidance
General safety advice for servicing, including isolation transformers and component handling.
AC Leakage Current Checks
Procedures for checking AC leakage current (cold and hot) to ensure user safety.
Specifications
General Specifications
Details on model, chassis, features, inputs, sound, power, and accessories.
Engineering Specifications
Technical specifications for operating frequency, resolution, and power input.
Signal Timing
Video and Sync Signal Timing
Details timing parameters for various video resolutions over HDMI.
HDMI Video Input Modes
Lists factory supported video input modes and their frequencies for HDMI.
Block Diagram
System Architecture Overview
Visual representation of the main components and their interconnections.
Exploded View
Component Identification
Diagram showing the physical layout and part numbers for assembly/disassembly.
Trouble Shooting Guide
No Power On Troubleshooting
Step-by-step guide for diagnosing and resolving power-on issues.
No Screen On Troubleshooting
Diagnostic steps for issues where the screen remains blank.
No Video - HDMI Troubleshooting
Troubleshooting guide for problems with video signal via HDMI.
Disassemble Guide
Disassembly Procedures
Illustrated steps for taking apart various components like the stand, back cover, and modules.
Software Update
BIOS Update
Instructions for checking and updating the system's BIOS version.
DMI String Update
Procedures for modifying DMI information such as serial number and product name.
Windows Image Installation
Guide for installing the operating system image onto the thin client.
Firmware Update
Steps for updating the monitor's firmware using specific tools.
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