LG 79UX340C User Manual

The LG 79UX340C is a 79-inch 4K Ultra HD Smart TV with webOS platform, HDR support, built-in Wi-Fi, Magic Remote control, AI ThinQ technology, multiple HDMI inputs, USB ports, Ethernet connectivity, and voice control capabilities. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: 79-inch 4K UHD display, webOS Smart TV platform, Magic Remote, multiple HDMI inputs, USB ports, built-in Wi-Fi, AI ThinQ technology.

Feature	Description
Display	79-inch 4K Ultra HD (3840 x 2160) with HDR
Smart Platform	webOS with built-in apps and streaming services
Magic Remote	Point, click, scroll and voice control functionality
HDMI Inputs	4 x HDMI 2.0 ports with HDCP 2.2
USB Ports	3 x USB 2.0 ports for media playback
Network Connectivity	Built-in Wi-Fi and Ethernet port
Audio	20W stereo speakers with Dolby Digital
Voice Control	Built-in microphone for voice commands
AI ThinQ	Smart home integration and AI features
Energy Saving	Energy Star certified with auto power saving

Installation

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

1. TV Placement: Place on sturdy stand or mount securely on wall using VESA 400x400 mount.
2. Connect antenna or cable: Use coaxial cable input for TV signal.
3. Connect external devices: Use HDMI ports for gaming consoles, streaming devices, etc.
4. Network connection: Connect via Wi-Fi or Ethernet cable.
5. Plug into AC power: Use included power cord and wall outlet.

WARNING! TV is very heavy; use two people for installation. Ensure wall mount can support weight.

First-Time Setup

Power on TV; follow on-screen setup wizard.

1. Language selection: Choose preferred language for interface.
2. Network setup: Connect to Wi-Fi or wired network.
3. Channel setup: Auto-program TV channels for your location.
4. LG account: Sign in or create LG account for smart features.
5. Magic Remote pairing: Follow prompts to pair Magic Remote.
6. Voice recognition: Set up voice control features if desired.

CAUTION! Ensure stable surface; professional installation recommended for wall mounting.

Specifications

• Screen Size: 79 inches diagonal
• Resolution: 4K Ultra HD (3840 x 2160)
• HDR: HDR10, HLG support
• Smart Platform: webOS
• Processor: Quad Core Processor
• Audio: 20W (10W x 2) with Dolby Digital
• Connectivity: 4 x HDMI, 3 x USB, Ethernet, Wi-Fi, Bluetooth
• Voice Control: Built-in microphone with AI ThinQ
• Power Consumption: 150W typical, 0.3W standby
• Dimensions: With stand: 69.9" x 42.3" x 14.2", Without stand: 69.9" x 40.2" x 3.5"
• Weight: With stand: 97.4 lbs, Without stand: 92.6 lbs

Controls and Settings

Access settings via Home button on Magic Remote or physical buttons on TV.

Magic Remote: Power, Home, Navigation wheel, Number buttons, Volume, Channel, Voice control, Quick access buttons.

Picture Settings: Picture Mode, Backlight, Contrast, Brightness, Sharpness, Color, Tint, Color Temperature, Advanced settings.

Sound Settings: Sound Mode, Volume, Balance, Equalizer, AI Sound Pro, Clear Voice, Auto Volume.

Network Settings: Wi-Fi, Wired, Network status, LG Connect Apps.

General Settings: Language, Time, Safety, Accessibility, Reset.

Connecting Devices

Multiple connectivity options for various devices and services.

1. HDMI Devices: Connect gaming consoles, Blu-ray players, soundbars to HDMI ports.
2. USB Devices: Connect external storage for media playback or recording.
3. Network: Connect via Wi-Fi or Ethernet for smart features and updates.
4. Audio: Connect to soundbar or home theater system via HDMI ARC or optical audio.
5. Antenna/Cable: Connect coaxial cable for live TV.

Tip: Use HDMI 1 port for ARC (Audio Return Channel) when connecting sound systems.

Smart Features

webOS platform provides access to streaming services and smart home control.

1. Home Dashboard: Access all apps and settings from one screen.
2. Streaming Apps: Netflix, YouTube, Amazon Prime Video, Disney+, etc.
3. Magic Remote: Point and click navigation, voice control, scroll wheel.
4. AI ThinQ: Control compatible smart home devices, get content recommendations.
5. Screen Share: Mirror smartphone or tablet screen to TV.
6. Multi-view: Watch two sources simultaneously (TV + app).
7. Sports Alert: Get notifications for favorite teams and games.

WARNING! Keep software updated for best performance and security.

Accessibility Features

Closed Captions: Enable in Accessibility settings. Voice Guidance: Audio description of on-screen elements. High Contrast: Improved visibility for visually impaired. Audio Description: Narration for visual content.

Care & Cleaning

Unplug before cleaning. Use dry, soft cloth only; no liquids or chemicals.

CAUTION! Do not use water, chemicals, or abrasive materials. Avoid pressure on screen.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Energy Star certified. Copyright © 2024 LG Electronics. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord, outlet	Check power cord connection; try different outlet; check circuit breaker.
No picture	Input source, settings	Check input source; adjust brightness/backlight; reset picture settings.
No sound	Volume, mute, connections	Check volume level; disable mute; verify audio connections.
Wi-Fi not connecting	Network, password	Check router; verify password; restart TV and router.
Remote not working	Batteries, pairing	Replace batteries; re-pair Magic Remote; check for obstructions.
Apps not loading	Internet, updates	Check internet connection; update webOS software; restart TV.

Reset: Settings > General > Reset to Initial Settings if available.

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