LG 55UF6430 Owner's Manual

The LG 55UF6430 is a 55-inch Ultra HD 4K LED TV with 3840 x 2160 resolution, built-in digital tuner, webOS smart TV platform, built-in Wi-Fi, multiple HDMI inputs, USB ports, component/composite inputs, Ethernet port, and advanced picture technologies including HDR Pro and Tru-ULTRA HD Engine. Powered by 120V AC, 60Hz. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Smart TV Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 55-inch 4K UHD LED panel, Magic Remote, webOS smart platform, multiple connectivity options.

Feature	Description
Screen Size	55-inch Ultra HD 4K LED Display
Resolution	3840 x 2160 pixels
Smart TV	webOS platform with built-in apps
Connectivity	Built-in Wi-Fi, Ethernet, Bluetooth
HDMI Inputs	3 x HDMI ports (HDCP 2.2 compliant)
USB Ports	2 x USB 2.0 ports
Component Input	Component video with audio inputs
Digital Audio Out	Optical digital audio output
RF Input	For antenna/cable connection
Magic Remote	Point, click, scroll, and voice control

Installation

Unpack and inspect contents. Place on stable surface or mount on wall.

Connect antenna or cable: Attach coaxial cable to RF input connector.
Connect external devices: Use HDMI ports for modern devices; component/composite for legacy devices.
Connect to network: Use Ethernet cable or built-in Wi-Fi for smart features.
Connect audio system: Use optical audio out for external sound systems.
Plug into AC power.

WARNING! TV is large and heavy; use two people for handling and installation. Ensure wall mount is rated for TV weight.

First-Time Setup

Power on TV; follow on-screen setup wizard.

Initial setup: Select language, country, and time zone.
Network connection: Connect to Wi-Fi or wired network.
Channel setup: Auto-program digital and analog channels.
LG account: Create or sign in to LG account for full smart features.
Picture calibration: Use picture wizard for optimal settings.

CAUTION! Ensure proper ventilation around TV; do not block vents.

Specifications

Screen Size: 55 inches LED.
Resolution: 3840 x 2160 (4K Ultra HD).
Smart Platform: webOS 3.0.
Sound: 20W output (10W x 2) with Clear Voice Pro.
Connectivity: 3x HDMI, 2x USB, Component, Composite, Ethernet, Wi-Fi.
HDR: HDR Pro support.
Processor: Tru-ULTRA HD Engine.
Power Source: 120V AC, 60Hz.
Energy Consumption: Energy Star certified.

Controls and Settings

Access settings via Home button on remote or physical buttons on TV.

Physical Controls: Power, Volume, Channel, Input, Menu.

Magic Remote: Power, Home, Navigation wheel, Voice recognition, Number buttons, Quick access buttons.

Picture Settings: Picture Mode, Backlight, Contrast, Brightness, Sharpness, Color, Tint. Advanced: Dynamic Contrast, Super Resolution, Color Gamut, Gamma. Sound Settings: Sound Mode, Equalizer, AV Sync, Sound Effect. Network: Wi-Fi, Wired, Network Test. General: Language, Time, Safety, Reset.

Connecting Devices

Multiple input options for various devices and sources.

Turn off TV and devices before connecting.
HDMI devices: Connect gaming consoles, streaming devices, Blu-ray players to HDMI ports.
USB devices: Connect storage devices for media playback.
Legacy devices: Use component/composite inputs for older equipment.
Select input via Input button or Home menu.

Tip: Use high-speed HDMI cables for 4K content and HDR support.

Smart TV Features

webOS platform provides access to streaming services and smart features.

Home Dashboard: Press Home button to access apps and inputs.
Apps: Netflix, Amazon Prime Video, YouTube, Hulu, and more available in LG Content Store.
Magic Remote: Point and click navigation, voice search, wheel scrolling.
Screen Share: Mirror compatible mobile devices.
Live Plus: Access to live TV information and recommendations.
Web Browser: Built-in browser for internet access.

Note: Internet connection required for smart features. Some services may require subscriptions.

Accessibility Features

Closed Captions: Digital CC and analog caption support. Audio Description: For visually impaired. High Contrast: Enhanced visibility. Voice Guidance: Audio feedback for menu navigation.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for screen. For stubborn stains, lightly dampen cloth with water. Do not use chemicals.

CAUTION! Never spray liquids directly on screen. Avoid abrasive materials that may scratch surface.

Regulatory Information

FCC Part 15: Class B digital device compliant. Energy Star certified. Copyright © 2025 LG Electronics. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000. EPEAT registered where applicable.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No picture/sound	Power/connections	Check power connection; ensure TV is on; verify input selection.
Poor picture quality	Settings/source	Adjust picture settings; check source quality; verify HDMI cable.
No network connection	Wi-Fi/router	Check router; re-enter password; use wired connection.
Remote not working	Batteries/obstacles	Replace batteries; ensure line of sight; pair Magic Remote.
Apps not loading	Network/server	Check internet connection; restart app; update software.

Reset: Settings > General > Reset to Initial Settings.

Support: 1-800-243-0000; www.lg.com