LG 55SJ850T User Manual

The LG 55SJ850T is a 55-inch 4K Ultra HD Smart LED TV with webOS platform, HDR Pro, Active HDR, Quad Core Processor, Magic Remote support, built-in Wi-Fi, Bluetooth connectivity, multiple HDMI and USB ports, Dolby Atmos audio, 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. Smart TV Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4K Ultra HD LED display, webOS Smart TV platform, Magic Remote, multiple connectivity ports, built-in speakers with Dolby Atmos.

Feature	Description
Screen Size	55-inch 4K Ultra HD LED Display
Resolution	3840 x 2160 pixels
HDR	HDR Pro with Active HDR
Processor	Quad Core Processor
Smart Platform	webOS with Magic Remote
Audio	Dolby Atmos, 20W Output
Connectivity	Wi-Fi, Bluetooth, 4x HDMI, 3x USB
Voice Control	Google Assistant, Amazon Alexa compatible
Gaming Features	Game Optimizer, ALLM, VRR
Energy Rating	Energy Star certified

Installation

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

TV Placement: Choose stable surface or use VESA 300x300 wall mount.
Connect antenna or cable: Use RF input for terrestrial/cable signals.
Connect external devices: Use HDMI ports for gaming consoles, streaming devices.
Network connection: Connect via Wi-Fi or Ethernet cable.
Plug into AC power outlet.

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

First-Time Setup

Power on TV; follow on-screen setup wizard.

Language selection: Choose preferred language for interface.
Network setup: Connect to Wi-Fi or wired network.
Channel setup: Auto-tune for terrestrial/cable channels.
LG account: Sign in or create LG account for smart features.
Magic Remote pairing: Follow on-screen instructions to pair remote.
Picture settings: Calibrate picture mode (Standard, Cinema, Game, etc.).

CAUTION! Handle TV carefully during setup to avoid damage to screen.

Specifications

Screen Size: 55 inches LED
Resolution: 4K Ultra HD (3840 x 2160)
HDR: HDR10, HLG, Dolby Vision
Processor: Quad Core Processor
Smart Platform: webOS 6.0
Audio: Dolby Atmos, 2.0CH 20W
Connectivity: Wi-Fi 5, Bluetooth 5.0, 4x HDMI 2.0, 3x USB 2.0
Voice Control: Built-in microphone for voice commands
Power Consumption: 110W (typical), 0.3W (standby)
Dimensions: 1228 x 712 x 46.9mm (without stand)

Controls and Settings

Access settings via Magic Remote or physical buttons. Front Panel: Power button, joystick control for basic functions.

Magic Remote: Power, Navigation wheel, Voice button, Number buttons, Quick Access buttons (Netflix, Amazon Prime, etc.), Settings button.

Picture Settings: Picture Mode, Brightness, Contrast, Color, Sharpness, HDR Effect, Color Gamut, Gamma. Audio Settings: Sound Mode, Equalizer, AV Sync, Dolby Atmos. Network: Wi-Fi, Ethernet, Bluetooth. General: System, Time, Accessibility, Voice Recognition.

Connecting Devices

Multiple connectivity options: HDMI, USB, Component, Composite, Ethernet, RF input.

Turn off TV and devices before connecting.
HDMI devices: Connect gaming consoles, streaming devices to HDMI ports.
USB devices: Connect storage devices, webcams to USB ports.
Audio devices: Connect soundbars via HDMI ARC or optical audio.
Select input via INPUT button or Home Dashboard.

Tip: Use HDMI 2.0 ports for 4K HDR content. Enable HDMI-CEC for device control.

Smart TV Features

webOS platform with streaming apps, web browsing, and smart features.

Home Dashboard: Access all connected devices and apps.
Streaming Apps: Netflix, YouTube, Amazon Prime, Disney+ pre-installed.
Magic Remote: Point and click navigation, voice control.
Screen Share: Mirror smartphone/tablet screen.
ThinQ AI: Voice control with Google Assistant and Amazon Alexa.
Game Optimizer: Access game-specific settings and modes.
Multi-view: Watch two sources simultaneously.
Content Store: Download additional apps and games.

WARNING! Keep software updated for optimal performance and security.

Accessibility Features

Closed Captions: Multiple subtitle options and styles. Audio Description: For visually impaired users. Voice Guidance: Audio feedback for menu navigation. High Contrast: Enhanced visibility for low vision. Energy Saving: Automatic power-off and brightness adjustment.

Care & Cleaning

Unplug before cleaning. Use microfiber cloth for screen; avoid chemicals and abrasive materials.

CAUTION! Do not use liquid cleaners directly on screen. Never spray liquids on TV surface.

Regulatory Information

FCC compliant: Class B digital device. Energy Star certified. RoHS compliant. Copyright © 2023 LG Electronics. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000. Model: 55SJ850T. Serial number located on back panel.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord, outlet issue	Check power connection; try different outlet; ensure power button is on.
No picture/sound	Input selection, cables	Check input source; verify cable connections; test with different device.
Wi-Fi not connecting	Network issues, settings	Restart router; check password; move closer to router; update software.
Remote not working	Batteries, pairing	Replace batteries; re-pair Magic Remote; ensure line of sight to TV.
Apps not loading	Internet, app issues	Check internet connection; clear app cache; reinstall app; update software.

Reset: Settings > General > Reset to Initial Settings if issues persist.

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