Why do black spots appear on my LG 75UL3J-E Digital Signage?
Some pixels (red, green, blue, black) are visible on the screen of your LG Digital Signage due to the unique characteristics of the display panel. This is not a malfunction of the product.
Why is the screen brightness dark on my LG 75UL3J-E Digital Signage?
If the screen’s brightness seems dark on your LG Digital Signage, try adjusting the brightness and contrast settings. If this doesn't help, the backlight may need repair. Also, if the internal temperature of the enclosure rises, the screen’s brightness may darken, so clean the heat exchanger or filter in the enclosure periodically.
What to do if touch does not respond on LG Digital Signage?
If the touch function does not respond on your LG Digital Signage, remove the USB cable and reconnect it after 10 seconds. Ensure your PC’s power cord is firmly plugged into a power outlet and restart your PC. If the system is down due to an unstable network, reconnect the LAN cable or restart your PC. Check the signal cable connection between your PC and the product, and make sure the product is powered on. Always connect the power cord to a grounded outlet to avoid breaks or touch errors. Also, check if the screen is currently on.
How to resolve 'No signal' or 'Invalid Format' message on LG 75UL3J-E?
If your LG Digital Signage displays a message saying ‘No signal’ or ‘Invalid Format’, check that the signal cable is securely connected between the PC and the product. Also, make sure the input signal is correctly selected in the input menu. If the signal from the PC is out of the product's vertical or horizontal frequency range, adjust the frequency range by referring to the specifications in the manual.
Why did my LG 75UL3J-E power suddenly turn off?
If the power suddenly turned off on your LG Digital Signage, check if the auto-off function is activated in the time-related settings. Ensure the product power cord is properly connected to a power source. Review the power control settings. If the internal temperature of the enclosure rises, the power may shut down; clean the heat exchanger or filter periodically. Also, check if the fan is working properly.
How to increase low sound on LG 75UL3J-E Digital Signage?
If the sound is too low on your LG Digital Signage, adjust the volume of the product or any external device connected to it.
How to fix dull sound on LG Digital Signage?
If the sound is too dull on your LG Digital Signage, select the appropriate equalizer sound setting.
How to improve color resolution on LG 75UL3J-E?
If your LG Digital Signage screen has poor color resolution (16 colors), use PC settings to set the color to 24 bits (True Color) or above.
Why is multi-touch not responding on my LG 75UL3J-E Digital Signage?
If multi-touch does not respond on your LG Digital Signage, the content played (e.g., Flash Player, Paint, etc.) may not support multi-touch points. Ensure you are using content that supports multi-touch. Remove the USB cable and reconnect it after 10 seconds. Try running the content again or restarting your PC. Note that multi-touch may work unstably on the edge of the touch screen, and touch errors may occur if the interval between two touches is too short.
Why are images flickering on my LG 75UL3J-E Digital Signage?
If images are flickering or fluttering on the screen of your LG Digital Signage, it may be normal if you turned the monitor on when it was cold. Also, ensure that the current resolution and frequency settings of the graphics card are supported by the monitor.
Safety guidelines for using the AC adapter and power cord to prevent hazards.
Instructions and warnings related to safely moving the display unit.
Guidelines for proper and safe installation of the product to prevent damage or injury.
Recommended methods for cleaning the product safely to avoid damage or electrical shock.
Essential safety measures and warnings for the general operation of the product.
Safety advice for handling and using the remote control, including battery precautions.
Advice on preventing image retention and screen damage from static images.
Guidelines for the proper and environmentally responsible disposal of the product.
Explanation of how to use the remote control, including battery installation.
Instructions on how to connect the monitor to a PC via USB or USB-C.
Guidance on connecting external devices like HD receivers, DVDs, or VCRs.
Steps and methods for connecting multiple monitors in a daisy-chain configuration.
Overview of the Home screen and its main functions like Global Buttons and Dashboard.
Detailed explanation of various configuration options within the Ez Setting menu.
Configuration options related to language, system info, Set ID, and time settings.
Features for managing and playing content, including player, continuous play, and export options.
Tools for controlling the display and managing Picture ID settings.
Connecting a PC via USB or USB-C for touch screen control of the product.
Understanding the prioritized tasks performed when touching the screen with a PC connected.
Step-by-step guide to executing smart calibration for color and brightness adjustment.
Table listing IR codes for various remote control functions and their hex values.
Instructions and diagrams for connecting multiple products using RS-232C cables.
Safety guidelines for using the AC adapter and power cord to prevent hazards.
Instructions and warnings related to safely moving the display unit.
Guidelines for proper and safe installation of the product to prevent damage or injury.
Recommended methods for cleaning the product safely to avoid damage or electrical shock.
Essential safety measures and warnings for the general operation of the product.
Safety advice for handling and using the remote control, including battery precautions.
Advice on preventing image retention and screen damage from static images.
Guidelines for the proper and environmentally responsible disposal of the product.
Explanation of how to use the remote control, including battery installation.
Instructions on how to connect the monitor to a PC via USB or USB-C.
Guidance on connecting external devices like HD receivers, DVDs, or VCRs.
Steps and methods for connecting multiple monitors in a daisy-chain configuration.
Overview of the Home screen and its main functions like Global Buttons and Dashboard.
Detailed explanation of various configuration options within the Ez Setting menu.
Configuration options related to language, system info, Set ID, and time settings.
Features for managing and playing content, including player, continuous play, and export options.
Tools for controlling the display and managing Picture ID settings.
Connecting a PC via USB or USB-C for touch screen control of the product.
Understanding the prioritized tasks performed when touching the screen with a PC connected.
Step-by-step guide to executing smart calibration for color and brightness adjustment.
Table listing IR codes for various remote control functions and their hex values.
Instructions and diagrams for connecting multiple products using RS-232C cables.
General| Display Size | 75 inches |
|---|---|
| Resolution | 3840 x 2160 (UHD) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
| Viewing Angle (H x V) | 178° x 178° |
| Response Time | 8 ms (G to G) |
| Operating System | webOS |
| Contrast Ratio | 1200:1 |
| Connectivity | HDMI, USB, RS232C, RJ45 |
| Bezel Width | 11.9mm |
| Color Gamut | 72% |
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