LG RHT498H Manual

The LG RHT498H is a 4K Ultra HD Smart TV with HDR support, webOS smart platform, built-in Wi-Fi, Magic Remote, multiple HDMI inputs, USB ports, and voice control capabilities. 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. Using Smart Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4K UHD Display with HDR, Magic Remote, HDMI ports, USB ports, Ethernet port, Optical Audio Out, Headphone jack.

FeatureDescription
4K Ultra HD Display3840 x 2160 resolution with HDR10 support
webOS Smart PlatformAccess to streaming apps and smart features
Magic RemotePoint, click, scroll and voice control
HDMI Inputs (4 ports)For connecting external devices
USB Ports (3 ports)For media playback and recording
Built-in Wi-FiWireless internet connectivity
Voice ControlGoogle Assistant and Amazon Alexa compatible
AI Sound ProVirtual 5.1.2 surround sound
Game OptimizerEnhanced gaming settings and features
ThinQ AISmart home integration and control

Installation

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

  1. Connect antenna or cable: Attach coaxial cable to ANTENNA/CABLE input.
  2. Connect external devices: Use HDMI ports for gaming consoles, Blu-ray players, etc.
  3. Connect to internet: Use Ethernet cable or connect via Wi-Fi settings.
  4. Connect audio system: Use Optical Audio Out or HDMI ARC for soundbar.
  5. Plug into AC power.

WARNING! TV is heavy; use two people for handling. Ensure wall mount is VESA compatible and properly secured.

First-Time Setup

Power on TV; follow on-screen setup wizard.

  1. Select language: Choose preferred language for interface.
  2. Connect to network: Select Wi-Fi network or use Ethernet.
  3. Sign in to LG account: Required for full smart features access.
  4. Scan for channels: Auto-tune for digital and analog channels.
  5. Set up Magic Remote: Pair remote with TV following on-screen instructions.
  6. Configure voice assistants: Set up Google Assistant or Amazon Alexa.

CAUTION! Keep TV away from heat sources and ensure proper ventilation.

Specifications

Controls and Settings

Access settings via Home button on Magic Remote or Settings menu.

Magic Remote: Power, Home, Navigation wheel, Number buttons, Voice button, Quick Access buttons (Netflix, Prime Video, Disney+, etc.)

Picture Settings: Picture Mode (Standard, Vivid, Cinema, Game, Filmmaker Mode), Brightness, Contrast, Color, Sharpness, HDR Effect, AI Picture Pro.

Sound Settings: Sound Mode (Standard, Music, Cinema, Game), AI Sound Pro, Equalizer, AV Sync, Dolby Atmos.

Network Settings: Wi-Fi, Ethernet, Network Test, LG Connect Apps.

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

Connecting Devices

Multiple connectivity options for various devices.

  1. Gaming Consoles: Connect via HDMI for best quality (use HDMI 1 for eARC).
  2. Sound Systems: Use HDMI ARC or Optical Audio Out.
  3. Streaming Devices: Connect via HDMI or use built-in apps.
  4. PC/Laptop: Connect via HDMI for 4K display.
  5. USB Devices: Connect external storage for media playback.

Tip: Use high-speed HDMI cables for 4K HDR content. Enable HDMI Deep Color in settings for compatible devices.

Using Smart Features

Access smart features through webOS home screen.

  1. Launching Apps: Press Home button, navigate to app store or installed apps.
  2. Content Search: Use voice control or on-screen keyboard.
  3. Screen Share: Use Miracast or AirPlay 2 for mobile device mirroring.
  4. Multi-view: Watch two sources simultaneously (TV + HDMI or app).
  5. Smart Home Control: Use ThinQ app to control compatible devices.
  6. Sports Alert: Get notifications for favorite teams and games.
  7. Gallery Mode: Display artwork or photos when TV is not in use.

Note: Some features require LG account and internet connection. Keep software updated for latest features.

Accessibility Features

Multiple accessibility options for different needs.

Access through Settings > General > Accessibility.

Care & Cleaning

Proper maintenance ensures longevity and optimal performance.

  1. Unplug TV before cleaning.
  2. Use soft, dry microfiber cloth for screen.
  3. For stubborn marks, lightly dampen cloth with water only.
  4. Clean bezel and stand with soft cloth.
  5. Never use chemicals, solvents, or abrasive materials.
  6. Ensure proper ventilation around TV.

CAUTION! Never spray liquids directly on screen. Avoid pressure on screen surface.

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC Rules. Operation is subject to two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received.

Energy Star: This TV meets Energy Star guidelines for energy efficiency.

Manufacturer: LG Electronics Inc.

Support: For assistance, visit www.lg.com or contact LG Customer Service at 1-800-243-0000.

Copyright © 2023 LG Electronics. All rights reserved. LG, webOS, and Magic Remote are trademarks of LG Electronics.

Troubleshooting

SymptomPossible CauseCorrective Action
No powerPower cord not connectedCheck power connection; ensure outlet is working
No pictureInput source incorrectPress Input button; select correct source
No soundVolume muted or lowCheck volume; unmute; check audio settings
Remote not workingBatteries dead or pairing neededReplace batteries; re-pair Magic Remote
Wi-Fi not connectingNetwork issuesCheck router; re-enter password; restart TV
Apps not loadingInternet connection or app issueCheck internet; update app; restart TV
Poor picture qualitySignal or settings issueCheck signal strength; adjust picture settings
Voice control not workingMicrophone off or network issueEnable microphone in settings; check internet

Factory Reset: Settings > General > Reset to Initial Settings (will erase all settings and accounts).

Software Update: Settings > Support > Software Update > Check for Updates.

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

LG RHT498H Manual © - All Rights Reserved 2025