LG 55LH40 Owner's Manual

The LG 55LH40 is a 55-inch LCD HDTV with 1080p Full HD resolution, built-in ATSC/NTSC/QAM tuners, HDMI inputs, USB port for media playback, component/composite inputs, PC input, digital audio output, built-in speakers, remote control, picture/sound modes, energy saving features, and various connectivity options. 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. Media Playback 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 55-inch LCD panel with Full HD 1080p resolution, Magic Remote, HDMI inputs, USB port, Component/Composite inputs, PC input, Digital audio output.

Feature	Description
HDMI inputs	For HD devices like Blu-ray players, gaming consoles
USB port	For media playback from USB storage devices
Component inputs	For HD component video sources
Composite inputs	For standard definition video sources
PC input	For computer connection
Digital audio output	For connection to home theater systems
Power button	Turns TV on/off
Input select	Switches between connected devices
Menu button	Accesses TV settings and options
Volume controls	Adjusts audio level

Installation

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

Connect antenna or cable: Attach coaxial cable to antenna input.
Connect HD devices: Use HDMI ports for best quality connection.
Connect audio system: Use digital audio output for external sound.
Connect PC: Use PC input for computer display.
Plug into AC power outlet.

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

First-Time Setup

Power on TV; follow on-screen setup wizard.

Select language: Choose preferred language for menus and guides.
Channel scan: Auto-program digital and analog channels.
Network setup: Configure internet connection if available.
Picture settings: Adjust brightness, contrast, and picture mode.
Sound settings: Configure audio output and sound modes.

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

Specifications

Screen Size: 55 inches LCD.
Resolution: 1920x1080 Full HD.
Tuner: ATSC/NTSC/QAM digital/analog.
Sound: Built-in speakers with various sound modes.
Connectivity: 4 HDMI, 2 USB, Component, Composite, PC input, Ethernet.
Media Playback: Supports photos, music, videos via USB.
Power Source: 120V AC, 60Hz.
Energy Rating: Energy Star compliant.

Controls and Settings

Access settings via Menu button or Magic Remote. Front controls: Power, Input, Menu, Volume.

Remote: Power, Input, Menu, Navigation arrows, Volume, Channel, Number pad, Smart features.

Picture: Picture mode (Standard, Vivid, Cinema, Game), Backlight, Contrast, Brightness, Color, Tint. Sound: Sound mode (Standard, Music, Cinema, Sports), Equalizer, Balance. Channel: Auto program, Manual program, Favorite channels. Network: Wired/Wireless setup, Software update.

Connecting Devices

HDMI: For HD devices. Component: For HD analog sources. Composite: For standard definition. USB: For media playback.

Turn off TV and devices before connecting.
Use appropriate cables for each connection type.
Select correct input source using Input button.
Configure device settings if necessary.

Tip: Use HDMI cables for best picture and sound quality.

Media Playback

Supports photos, music, and video files via USB.

Insert USB device into USB port.
Select USB input from source menu.
Navigate through files using remote control.
Play media files; use playback controls.
Supported formats: JPEG, MP3, MPEG, DivX, Xvid.

WARNING! Safely eject USB devices before removal. Do not remove during playback.

Accessibility Features

Closed Captions: Digital and analog caption support. Audio Description: For visually impaired. Energy Saving: Automatic brightness adjustment. Sleep Timer: Automatic power off.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for screen. For stubborn stains, use screen cleaner specifically for LCD displays.

CAUTION! Do not use chemicals or abrasive cleaners. Never spray liquid directly on screen.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No picture	Power/input selection	Check power connection; ensure correct input selected.
No sound	Volume/mute settings	Check volume level; ensure mute is off; check audio cables.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to TV sensor.
Poor picture quality	Signal/settings	Check signal source; adjust picture settings; use better cables.
USB not recognized	Format/compatibility	Ensure USB is formatted correctly; check supported file formats.

Reset: Menu > Settings > Reset to Initial Settings.

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