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OWNER'S MANUAL
LED TV*
* LG LED TVs are LCD TVs with LED backlighting.
Please read this manual carefully before operating your set
and retain it for future reference.
MT55*
www.lg.com

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Table of Contents
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Summarization of Contents

Licenses and Software Notices
Licenses Information
Details about supported licenses and how to access further information.
Open Source Software Notice
Instructions for obtaining open source code and license terms.
Assembling and Preparing Your TV
Unpacking and Initial Check
Checking product box contents and reporting missing accessories.
Identifying TV Components and Controls
Overview of TV screen, speakers, sensors, and touch buttons for operation.
Safe Handling and Moving Procedures
Precautions for preventing damage to the TV during lifting and transportation.
Attaching the TV Stand
Step-by-step instructions for securely attaching the TV stand to the unit.
Table Mounting Instructions
Guidance for placing the TV upright on a table with proper ventilation requirements.
Wall Mounting Guidelines
Procedures and considerations for securely mounting the television on a wall.
Making Connections to Your TV
Antenna and Satellite Signal Connections
Connecting the TV to broadcast or satellite signals via RF cables for reception.
External Device Connectivity
Guides for Scart, HDMI, Component, and other external device hookups for input.
PC Connection and Optimization
Steps for linking a computer to the TV and optimizing display settings for PC input.
Remote Control Operation
Remote Control Functions and Operation
Comprehensive explanation of all buttons and their functions for TV operation.
Network Settings
Wired Network Connection Setup
Step-by-step guide to connecting the TV to a network using a LAN cable.
TV Settings and Customization
Picture Quality Adjustments
Customizing visual output via Picture Wizard, modes, and advanced picture controls.
Audio Output Configuration
Setting up sound output for TV speakers, external devices, or headphones.
System and Feature Management
Configuring AV sync, SIMPLINK, security, resets, and USB device handling.
Media File Compatibility
Details on compatible USB storage devices and supported media file formats.
Accessing the Online User Manual
Instructions for retrieving detailed user guide information from the LG website.
Maintenance and Care
Cleaning and Screen Care Procedures
Instructions for safely cleaning the TV screen, frame, cabinet, and power cord.
Preventing Screen Burn-in Issues
Guidance on avoiding permanent image retention on the TV screen.
Troubleshooting Common Issues
Common TV Issues and Solutions
Troubleshooting common problems like remote control, display, sound, and connectivity errors.
Technical Specifications
Model and Hardware Specifications
Details on dimensions, weight, power requirements, and adapter specifications for various models.
Supported Display and Connectivity Standards
Information on supported TV systems, PC/HDMI resolutions, frequencies, and port connectivity.

Table of Contents