LG 255LG Manual

The LG 255LG is a versatile 25-inch LED monitor with Full HD resolution, multiple connectivity options including HDMI, DisplayPort, and VGA, built-in speakers, adjustable stand, blue light reduction technology, and energy-saving features. Below are key sections covering 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. Advanced Display Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LED panel with anti-glare coating, adjustable stand (tilt, swivel, height), built-in 2W speakers, multiple input ports, and on-screen display controls.

Feature	Description
HDMI Port	For high-definition video and audio connection
DisplayPort	For digital video and audio connection
VGA Port	For analog video connection
Audio Input	3.5mm jack for external audio devices
Headphone Jack	For private audio listening
AC Power Input	For power connection
Built-in Speakers	2W x 2 stereo speakers
Power Button	Turns monitor on/off
Menu Button	Accesses on-screen display settings
Input Select	Cycles through available input sources

Installation

Unpack and inspect contents. Place on stable, level surface.

Assemble stand: Attach base to monitor neck using provided screws.
Connect video sources: Use HDMI, DisplayPort, or VGA cable to connect to computer or other devices.
Connect audio: Use 3.5mm audio cable if using VGA connection.
Plug into AC power outlet.

WARNING! Monitor is heavy; lift with care to avoid injury. Ensure all connections are secure before powering on.

First-Time Setup

Power on monitor; follow on-screen prompts if available.

Select input source: Press INPUT button to select correct source (HDMI, DP, VGA).
Adjust display settings: Use OSD menu to set brightness, contrast, and color temperature.
Configure audio: Adjust volume and select audio source if multiple available.
Set energy saving: Enable power saving mode in OSD settings.

CAUTION! Ensure stable surface; avoid placing near heat sources or direct sunlight.

Specifications

Screen Size: 25 inches LED.
Resolution: 1920 x 1080 Full HD.
Response Time: 5ms.
Refresh Rate: 60Hz.
Brightness: 250 cd/m².
Contrast Ratio: 1000:1 (static).
Viewing Angles: 178°/178°.
Connectivity: HDMI, DisplayPort, VGA, Audio In, Headphone Out.
Speakers: 2W x 2 built-in.
Power Consumption: ≤ 30W typical.
Power Source: 100-240V AC, 50/60Hz.

Controls and Settings

Access OSD via Menu button on monitor bezel or remote control if included.

Front Controls: Power, Menu, Input Select, Volume Up/Down, Auto/Set.

OSD Menu Structure: Picture (Brightness, Contrast, Sharpness, Color Temp), Audio (Volume, Balance), Input Select, Setup (Language, OSD Timeout, Reset), Special Features (Blue Light Reduction, Game Mode, Reader Mode).

Picture Modes: Custom, Vivid, Standard, Eco, Game, Reader. Audio Settings: Volume control, mute, balance adjustment.

Connecting Devices

HDMI: For digital video and audio. DisplayPort: For digital video and audio. VGA: For analog video (requires separate audio).

Turn off monitor and devices before connecting.
Match cables to correct ports (HDMI to HDMI, etc.).
Select input source via INPUT button or OSD menu.
For VGA connection: Connect 3.5mm audio cable from computer to monitor audio input.

Tip: Use high-quality cables for best performance. Ensure cables are fully inserted.

Advanced Display Features

Blue Light Reduction: Reduces blue light emission for comfortable viewing. Game Mode: Optimizes response time for gaming. Reader Mode: Adjusts color temperature for reading comfort.

Access Special Features in OSD menu.
Select desired mode: Blue Light Reduction (Off, Low, Medium, High).
Game Mode: Enable for faster response time.
Reader Mode: Activates warmer color temperature.
Customize settings: Adjust individual parameters in Picture menu.

WARNING! Extended use at high brightness may cause eye strain. Take regular breaks.

Accessibility Features

High Contrast Mode: Enhances visibility for visually impaired users. OSD Timeout Adjustment: Controls how long OSD remains on screen. Audio Feedback: Beep sound when buttons pressed (can be disabled).

Care & Cleaning

Unplug monitor before cleaning. Use soft, dry cloth for screen; slightly damp cloth for bezel and stand. Do not use alcohol, ammonia, or abrasive cleaners.

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

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Energy Star certified. RoHS compliant. Copyright © LG Electronics Inc. All rights reserved. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cable not connected	Check power cable connection; ensure outlet has power.
No display	Wrong input selected	Press INPUT button to select correct source; check cable connections.
Blurry image	Incorrect resolution	Set computer resolution to 1920x1080; run auto-adjust.
No sound	Volume muted or wrong audio source	Check volume settings; ensure audio cable connected (for VGA).
Dead pixels	Manufacturing defect	Contact LG support if within warranty period.
Flickering display	Cable issue or refresh rate	Check cable connections; adjust refresh rate to 60Hz.

Reset: OSD Menu > Setup > Reset All Settings.

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