Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your LG 86UT640S0UA 86-inch UT640S Series UHD Commercial Signage TV. The UT640S Series is designed for diverse business environments, offering compatibility with AV control systems, Display Power Management (DPM), smart connectivity, a user-friendly interface, and Ultra High Definition (UHD) picture quality.

Figure 1: Front view of the LG 86UT640S0UA Commercial Signage TV.
Setup
Before beginning installation, ensure all components are present and undamaged. The LG 86UT640S0UA is designed for wall mounting or stand placement (stand sold separately). Due to its size, professional installation is recommended.
Unpacking
- Carefully remove the TV from its packaging.
- Inspect the TV for any signs of damage.
- Confirm all included components are present. The package includes one main unit.
Mounting and Placement
Ensure the mounting surface or stand can support the weight and dimensions of the 86-inch display. Refer to the separate mounting bracket or stand instructions for specific installation details.

Figure 2: Angled view of the TV, highlighting its slim design.

Figure 3: Side profile of the TV, showing its thinness.
Power and Network Connection
Connect the power cable to the TV and a suitable power outlet. For network connectivity, use an Ethernet cable or connect via Bluetooth. The TV supports Wake-on-LAN (WOL), allowing it to be turned on by sending messages through the network, simplifying installation and maintenance with a single wire for power and network.
Operating Instructions
Initial Power On and Basic Navigation
Upon first power-on, follow the on-screen prompts to complete the initial setup, including language selection, network configuration, and time zone settings. Use the provided remote control to navigate the user interface. The TV features a smart, user-friendly interface for easy access to various functions and applications.
Content Management
The embedded Content and Group Management System allows for direct editing and playback of content, scheduling of playlists and groups, and control of the signage display using a remote control, mouse, or mobile phone. This system eliminates the need for separate PC software, streamlining content updates.
- SuperSign Control: This basic control software can manage up to 100 displays from a single account and server. Functions include remote adjustment of power, volume, scheduling, and firmware updates.
- USB Data Cloning: For environments with multiple displays, USB data cloning simplifies setup. Configure one display, copy its settings to a USB device, and then easily transfer these settings to other displays by plugging in the USB.
Real-Time Remote Monitoring
The TV supports real-time remote care for efficient malfunction or error handling. Notifications can be sent via the SNMP (Simple Network Management Protocol) protocol when an error occurs, enabling prompt resolution.

Figure 4: The LG UT640S Series TV in a commercial environment, showcasing its visibility.
Maintenance
Regular maintenance ensures optimal performance and longevity of your LG Commercial Signage TV.
Cleaning the Display
- Always power off and unplug the TV before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a specialized screen cleaner.
- Do not spray cleaning solution directly onto the screen.
- Avoid using abrasive cleaners, waxes, or solvents.
General Care
- Keep the TV in a well-ventilated area to prevent overheating.
- Avoid exposing the TV to direct sunlight or extreme temperatures.
- Ensure cables are securely connected and not under strain.
Troubleshooting
If you encounter issues with your LG Commercial Signage TV, refer to the following common troubleshooting steps.
No Power
- Check if the power cord is securely plugged into both the TV and the power outlet.
- Verify the power outlet is functional by plugging in another device.
- Ensure the power button on the remote or TV is pressed.
No Picture or Distorted Image
- Confirm the correct input source is selected.
- Check all video cables (HDMI, etc.) for secure connections.
- If using an external device, ensure it is powered on and functioning correctly.
- Adjust display settings such as resolution and aspect ratio.
No Sound
- Increase the volume using the remote control.
- Check if the TV is muted.
- Verify audio cable connections if using external speakers.
- Check audio output settings on the TV.
For further assistance, refer to the support section or contact LG customer service.
Specifications
| Feature | Detail |
|---|---|
| Brand | LG |
| Model Number | 86UT640S0UA |
| Screen Size | 86 Inches |
| Display Technology | LED |
| Resolution | 4K (UHD) |
| Refresh Rate | 60 Hz |
| Aspect Ratio | 16:9 |
| Product Dimensions | 12 x 84 x 50 inches |
| Item Weight | 0.01 ounces (Note: This weight may be a placeholder or incorrect in source data for an 86-inch TV.) |
| Color | Black |
| Special Feature | Flat Panel |
| Wattage | 77 watts |
| Connectivity Technology | Bluetooth |
| Supported Internet Services | Browser |

Figure 5: Detail of the TV's frame, featuring a brushed metal appearance.
Warranty Information
LG provides a standard manufacturer's warranty for this product. Specific warranty terms and conditions, including coverage duration and service procedures, are detailed in the warranty card included with your product or available on the official LG website. Please retain your proof of purchase for warranty claims.
Support
For technical support, service inquiries, or additional product information, please contact LG customer support.
- Visit the official LG website for support resources, FAQs, and driver downloads.
- Refer to the contact information provided in your product documentation for phone or email support.