LG 55TNF5J - User Manual

Other manuals for LG 55TNF5J

Questions and Answers

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Spencer FloresSep 12, 2025
How to fix LG 55TNF5J when the screen is displayed abnormally?
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  Paul KellerSep 12, 2025
  If the screen on your LG Digital Signage is displaying abnormally, ensure that the signal cable matches the source input signal. If you've just powered on the product, the issue might disappear after a certain period. When connecting the panel and the Signage box, check that their serial numbers match. If they do, unplug the power cord and plug it back in to run the Clear Panel Noise feature, or run this feature through (Settings) [Display] [Advanced Settings] [OLED Panel Settings] [Clear Panel Noise] menu.
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Brady MurphyAug 25, 2025
What to do if my LG Digital Signage power suddenly turned off?
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  Lauren ThomasAug 25, 2025
  If your LG Digital Signage suddenly turned off, consider the following: * Check if the auto-off function is enabled in the time-related settings. * Ensure the power cord is properly connected, and the power source is adequately supplied. * 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. * Verify the fan is working correctly. * Check the fan status in (SETTINGS) [General] [System Information] [Fan Status].
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Timothy ReyesAug 25, 2025
What to do if touch does not respond on LG Digital Signage?
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  rickyburnsAug 26, 2025
  If the touch function isn't responding on your LG Digital Signage, try these steps: * If the USB cable between PC and product is not connected, remove the USB cable and connect it again 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. * If your PC and product are not connected using a signal cable, check the signal cable connection. * If the product is powered off, check the product power. * Always connect the power cord to a grounded outlet. * Check if the screen is currently on. * A break or touch error may occur as below case.
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Lance KiddSep 23, 2025
Why does an after-image appear on my LG Digital Signage when turned off?
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  Kimberly LeonardSep 23, 2025
  If an after-image appears when your LG Digital Signage is turned off, use the screen-saver function. This is normal for display products.
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Duane HarrisonSep 12, 2025
Why is the screen’s brightness dark on my LG 55TNF5J Digital Signage?
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  Julie SanchezSep 12, 2025
  If the screen of your LG Digital Signage appears dark, try adjusting the brightness and contrast settings first. If that doesn't help, the backlight may need repair. Also, make sure to periodically clean the heat exchanger or filter in the enclosure.
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Morgan CollinsSep 16, 2025
What does ‘Unknown Product’ mean on LG 55TNF5J?
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  Steven KnappSep 17, 2025
  If the ‘Unknown Product’ message appears when your LG Digital Signage is connected, check if the driver of your PC (graphics card) has been installed. Also, verify if the plug and play function is supported by the PC (graphics card) user manual.
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Martin KempSep 5, 2025
How to fix PC BIOS configuration screen not displayed correctly on LG 55TNF5J Digital Signage?
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  James AvilaSep 5, 2025
  On some PCs, the BIOS configuration screen may not display correctly because the atypical aspect ratio is not supported before the graphics card driver is configured. To access the PC BIOS configuration screen, please connect a standard aspect ratio (4:3 or 16:9) monitor, then perform the BIOS configuration.
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Donna BrownSep 5, 2025
How to correct touch location on LG Digital Signage?
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  John Sharp PhDSep 6, 2025
  If the location of a touch does not correspond to the touch coordinates on your LG Digital Signage, this may occur when the touch screen is not calibrated properly. Change your tablet PC settings.
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Mrs. Emily Hopkins MDSep 18, 2025
Why is multi-touch not responding on my LG 55TNF5J?
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  Patricia MyersSep 18, 2025
  If multi-touch is not responding on your LG Digital Signage, make sure that you are using content that supports multi-touch points. If the content supports multi-touch, remove the USB cable and reconnect it after 10 seconds. You can also try running the content again or restarting your PC.
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jennifergilbertAug 30, 2025
How to resolve unstable or mono-colored screen on LG 55TNF5J?
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  Stephen SnyderAug 30, 2025
  To resolve an unstable or mono-colored screen on your LG Digital Signage, check the connection status of the signal cable. Or, re-insert the PC graphics card.

LG 55TNF5J Specifications

General

Panel Technology	IPS
Brightness	500 cd/m²
Viewing Angle (H x V)	178 x 178
Response Time	8 ms
Operating Hours	24/7
Orientation	Landscape / Portrait
Speaker	10W x 2
Operating Temperature	0°C to 40°C
Operating Humidity	10% to 80%
VESA Mount	300 x 300 mm
Screen Size	55 inches
Native Resolution	3840 x 2160
Input	HDMI, USB
Output	HDMI, DisplayPort
External Control	RS-232C, RJ45
Power Supply	100-240V, 50/60Hz