LG 31MU97 Manual

The LG 31MU97 is a 31-inch professional 4K monitor with 4096x2160 resolution, IPS display technology, wide color gamut covering 99.5% of Adobe RGB color space, Thunderbolt 2 connectivity, USB 3.0 hub, hardware calibration support, and professional-grade color accuracy. 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. Color Management 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 31-inch 4K IPS panel, Thunderbolt 2 ports, USB 3.0 hub, hardware calibration support, wide color gamut.

Feature	Description
Display Size	31-inch 4K UHD (4096x2160)
Panel Technology	IPS with wide viewing angles
Color Gamut	99.5% Adobe RGB, DCI-P3 compatible
Thunderbolt 2	High-speed data and video transfer
USB 3.0 Hub	Multiple USB ports for peripherals
Hardware Calibration	Professional color accuracy support
Inputs	DisplayPort, HDMI, Thunderbolt 2
POWER	Turns monitor on/off
MENU	Accesses OSD controls
INPUT	Switches between video sources

Installation

Unpack and inspect contents. Place on stable surface.

Attach stand: Align stand with monitor base, secure with provided screws.
Connect video sources: Use DisplayPort, HDMI, or Thunderbolt 2 cables.
Connect USB devices: Use USB 3.0 ports for peripherals.
Plug into AC power using provided power cord.

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

First-Time Setup

Power on monitor; follow on-screen prompts.

Select input source: Press INPUT button to choose between DisplayPort, HDMI, Thunderbolt.
Adjust display settings: Use OSD menu for brightness, contrast, color temperature.
Set color mode: Choose between sRGB, Adobe RGB, or custom color spaces.
Configure USB hub: Connect peripherals to USB 3.0 ports.

CAUTION! Ensure stable surface; use two people for handling.

Specifications

Screen Size: 31 inches
Resolution: 4096x2160 (4K UHD)
Panel Type: IPS
Color Gamut: 99.5% Adobe RGB
Brightness: 350 cd/m² typical
Contrast Ratio: 1000:1
Response Time: 14ms (GTG)
Inputs: DisplayPort, HDMI, Thunderbolt 2
USB: USB 3.0 hub with multiple ports
Power Consumption: 150W maximum

Controls and Settings

Access OSD via front panel buttons or remote control. Front Panel: POWER, MENU, INPUT, navigation buttons.

OSD Menu: Picture mode, Color settings, Input selection, System settings, USB configuration.

Picture: Brightness, Contrast, Sharpness, Color Temperature, Gamma. Color: Color Space (sRGB, Adobe RGB, Custom), 6-Axis Color Control, Hardware Calibration. System: Input Selection, OSD Settings, Power Saving, Factory Reset.

Connecting Devices

Multiple input options: DisplayPort, HDMI, Thunderbolt 2.

Turn off monitor and computer before connecting.
Match cables to ports (DisplayPort to DisplayPort, etc.).
Select input source via INPUT button or OSD menu.
Connect USB devices to USB 3.0 hub ports.

Tip: Use Thunderbolt 2 for daisy-chaining multiple displays.

Color Management

Professional color accuracy features for graphic design, photography, and video editing.

Hardware Calibration: Use compatible calibration software for precise color accuracy.
Color Spaces: Select between sRGB, Adobe RGB, DCI-P3, or custom profiles.
6-Axis Color Control: Adjust individual color channels (Red, Green, Blue, Cyan, Magenta, Yellow).
Gamma Settings: Choose from multiple gamma curves (1.8, 2.2, 2.4, L*).
Uniformity Compensation: Ensures consistent brightness and color across entire screen.

WARNING! Use proper calibration equipment for professional color work.

Accessibility Features

OSD Language: Multiple language support. Quick Access: Customizable shortcuts for frequently used settings. High Contrast Mode: Enhanced visibility options.

Care & Cleaning

Unplug before cleaning. Use microfiber cloth only; no liquids or aerosols.

CAUTION! Do not spray liquids directly on screen; keep away from heat and moisture.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © LG Electronics; all trademarks property of their respective owners. For support, visit www.lg.com or contact LG customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Power/cable connection	Check power cord; ensure proper input selection; verify cable connections.
Poor image quality	Resolution/color settings	Set correct resolution (4096x2160); calibrate color settings; check cable quality.
USB devices not working	Hub power/connections	Ensure monitor is powered on; reconnect USB devices; check computer USB drivers.
Color accuracy issues	Calibration/profile	Perform hardware calibration; check color profile settings in operating system.
Thunderbolt not detected	Cable/computer settings	Use certified Thunderbolt cable; check computer Thunderbolt settings; update drivers.

Reset: OSD Menu > System > Factory Reset if available.

Service: Contact LG customer support; visit www.lg.com for service locations.