lg 55ls75c manual

The LG 55LS75C is a 55-inch LED Smart TV with 4K Ultra HD resolution, built-in digital tuner, webOS smart platform, integrated streaming apps, multiple HDMI inputs, USB ports, Ethernet and Wi-Fi connectivity, voice control capabilities, HDR support, built-in speakers with AI Sound, and energy-saving features. 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: 55-inch 4K LED display, Magic Remote, webOS smart platform, multiple connectivity options, and AI-enhanced features.

FeatureDescription
4K Ultra HD Display3840 x 2160 resolution with HDR support
webOS Smart PlatformAccess to streaming apps and services
Magic RemoteVoice control and pointer functionality
HDMI InputsMultiple HDMI 2.0 ports for external devices
USB PortsFor media playback and recording
Wi-Fi & EthernetDual-band Wi-Fi and wired internet connectivity
AI Sound ProEnhanced audio processing for clear dialogue
Voice ControlBuilt-in microphone for voice commands
Energy SavingAuto brightness adjustment and power saving modes
Screen ShareMiracast and screen mirroring capabilities

Installation

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

  1. Connect antenna or cable: Attach coaxial cable to antenna input.
  2. Connect external devices: Use HDMI ports for gaming consoles, streaming devices.
  3. Connect to internet: Use Ethernet cable or set up Wi-Fi connection.
  4. Connect audio system: Use optical audio out or HDMI ARC.
  5. Plug into AC power.

WARNING! TV is large and heavy; use two people for installation. Ensure wall mount is properly secured.

First-Time Setup

Power on TV; follow on-screen setup wizard.

  1. Select language: Choose preferred interface language.
  2. Connect to network: Set up Wi-Fi or wired internet connection.
  3. Scan for channels: Auto-tune digital and analog channels.
  4. Sign in to LG account: Access additional features and services.
  5. Configure voice assistant: Set up Google Assistant or Amazon Alexa.
  6. Adjust picture settings: Choose picture mode (Standard, Vivid, Cinema, etc.).

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

Specifications

Controls and Settings

Access settings via Home button or Settings menu. Front controls: Power, Volume, Channel, Input.

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

Picture Settings: Picture mode, Brightness, Contrast, Sharpness, Color, Tint, Backlight, Local Dimming. Sound Settings: Sound mode, Equalizer, AI Sound Pro, Volume leveling. Network: Wi-Fi setup, Ethernet, Network status. General: Language, Time, Safety, Reset.

Connecting Devices

HDMI: Connect gaming consoles, Blu-ray players, soundbars. USB: Media playback and recording. Network: Internet connectivity.

  1. Turn off TV and devices before connecting.
  2. Use high-speed HDMI cables for 4K content.
  3. Select input via Input button (HDMI 1-4, Live TV, USB).
  4. For audio systems: Use HDMI ARC or optical audio out.

Tip: Label HDMI inputs for easy identification of connected devices.

Using Smart Features

Access streaming services, web browsing, and smart home control.

  1. Press Home button to access webOS launcher.
  2. Navigate apps using Magic Remote pointer.
  3. Install new apps from LG Content Store.
  4. Use voice control: Press microphone button and speak commands.
  5. Screen mirroring: Use Screen Share for mobile devices.
  6. Smart home control: Integrate with Google Home or Amazon Alexa.
  7. Live Plus: Access additional information while watching TV.
  8. Multi-tasking: Run multiple apps simultaneously.

WARNING! Keep software updated for security and performance improvements.

Accessibility Features

Closed Captions: Enable in Accessibility settings. Voice Guidance: Audio descriptions for visually impaired. High Contrast: Improved visibility. Audio Description: Narrative descriptions of visual elements.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for screen; slightly damp cloth for cabinet. Avoid chemicals and abrasive materials.

CAUTION! Do not use liquid cleaners directly on screen; never spray liquids onto TV surface.

Regulatory Information

FCC compliant; Energy Star certified. Copyright © 2024 LG Electronics. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000. This device complies with part 15 of the FCC Rules.

Troubleshooting

SymptomPossible CauseCorrective Action
No powerPower cord disconnectedCheck power connection; ensure outlet is working
No pictureInput selectionCheck input source; ensure device is powered on
No soundVolume/mute settingsCheck volume level; disable mute; check audio output settings
Wi-Fi not connectingNetwork issuesCheck router; re-enter password; restart TV and router
Remote not workingBatteries/obstructionsReplace batteries; ensure line of sight to TV sensor
Apps not loadingInternet connectionCheck network connection; restart app; update software
Picture quality issuesSignal/settingsCheck signal strength; adjust picture settings; update firmware

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

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

LG 55LS75C User Manual © - All Rights Reserved 2025