LG 43TNF5J-B - User Manual

Questions and Answers

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Brittney DouglasSep 12, 2025
How to fix LG 43TNF5J-B when the screen is displayed abnormally?
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  michael58Sep 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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Jamie FreyAug 25, 2025
What to do if my LG Digital Signage power suddenly turned off?
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  Cheryl LeonardAug 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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James WebsterAug 25, 2025
What to do if touch does not respond on LG 43TNF5J-B?
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  Tina JohnsonAug 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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Amy ReynoldsSep 23, 2025
Why does an after-image appear on my LG 43TNF5J-B Digital Signage when turned off?
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  Russell BrownSep 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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bryan31Sep 12, 2025
Why is the screen’s brightness dark on my LG Digital Signage?
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  Lori StephensSep 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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christophergarciaSep 16, 2025
What does ‘Unknown Product’ mean on LG 43TNF5J-B Digital Signage?
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  Christopher ChandlerSep 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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jenna61Sep 5, 2025
How to fix PC BIOS configuration screen not displayed correctly on LG 43TNF5J-B?
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  Judy JamesSep 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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Sara SmithSep 6, 2025
How to correct touch location on LG 43TNF5J-B Digital Signage?
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  ylunaSep 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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David AguilarSep 18, 2025
Why is multi-touch not responding on my LG 43TNF5J-B?
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  Richard WhiteSep 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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Shawn NorrisAug 30, 2025
How to resolve unstable or mono-colored screen on LG 43TNF5J-B?
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  Amanda MontgomeryAug 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 43TNF5J-B Specifications

General

Panel Technology	IPS
Contrast Ratio	1200:1
Dynamic Contrast Ratio	500, 000:1
Viewing Angle (H x V)	178° x 178°
Life Time	50, 000 Hours
Operation Hours	24/7
Orientation	Landscape & Portrait
VESA Mount Standard	200 x 200 mm
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Standby Power Consumption	0.5W
Input Voltage	100-240V~, 50/60Hz
Frequency	50/60Hz
Screen Size	43 inch
Native Resolution	1920 x 1080 (FHD)
Surface Treatment	3H
Input	HDMI, DVI-D, USB
Output	Audio
External Control	RS232C, RJ45
Ports	HDMI, USB, RS-232C, RJ45
Response Time	12 ms (G to G)