LG 22SM3B - User Manual

Questions and Answers

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Christopher PollardAug 18, 2025
Why does my LG 22SM3B display no image?
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  Heather WoodwardAug 19, 2025
  There are several possible reasons why your LG Monitor might not be displaying an image. First, ensure that the power cord is correctly plugged into the power outlet. Also, check that the signal cable between your PC and the monitor is securely connected. The issue could also be due to the signal from the PC (video card) being out of the vertical or horizontal frequency range of the product. If this is the case, adjust the frequency range by referring to the Specifications in this manual, noting that the maximum resolution is 1920 x 1080 (60 Hz). Finally, press the INPUT menu in the remote Control to check the input signal.
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Alexandria WhiteAug 21, 2025
Why does the audio function not work on my LG 22SM3B?
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  mathisnicoleAug 21, 2025
  If the audio function on your LG Monitor isn't working, make sure the audio cable is connected properly. Also, adjust the volume and ensure the sound is set correctly. Try selecting the appropriate equalizer sound and adjusting the volume again.
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John RobertsonAug 23, 2025
Why is the screen color abnormal on my LG 22SM3B Monitor?
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  qwilsonAug 23, 2025
  Abnormal screen color on your LG Monitor can be due to several reasons. If the screen has poor color resolution (16 colors), set the number of colors to more than 24 bits (true color) via Control Panel - Display - Settings - Color Table menu in Windows. Also, check the connection status of the signal cable. Note that several pixels (red, green, white, or black color) may appear on the screen, which is attributable to the unique characteristics of the LCD panel and is not a malfunction.
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Samantha SmithAug 26, 2025
What to do if no image is displayed on LG Digital Signage?
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  Connie WadeAug 26, 2025
  If no image is displayed on your LG Digital Signage, first ensure the power cord is properly connected to the power outlet. If the connection is correct, check the signal cable between your PC and the signage, and verify the input signal in the input menu. Also, the signal from the PC (video card) may be out of the vertical or horizontal frequency range of the product. In this case, adjust the frequency range by referring to the Specifications, ensuring you are within the maximum resolution of 1920 x 1080 (60 Hz).
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Adam TrevinoAug 28, 2025
Why is the screen color abnormal on my LG Digital Signage?
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  Stephanie BarrettAug 28, 2025
  If the screen color on your LG Digital Signage is abnormal, set the number of colors to more than 24 bits (true color) via Control Panel ? Display ? Settings ? Color Table menu in Windows. Also, verify the connection status of the signal cable, and if necessary, re-insert the PC video card. Note that several pixels (red, green, blue, white, or black color) may appear on the screen; this is attributable to the unique characteristics of the LCD panel and is not a malfunction.
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Timothy DiazAug 30, 2025
Why does the screen image look abnormal on my LG Digital Signage?
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  Harold RiveraAug 30, 2025
  If the screen image on your LG Digital Signage looks abnormal, check if the video card resolution and frequency are supported by the product. If the frequency is out of range, set to the recommended resolution in the Control Panel Display Setting menu. Also, ensure that you connect the signal cable that matches the source input signal.
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Christine WongSep 1, 2025
How to fix the audio function if it does not work on LG Digital Signage?
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  umercadoSep 1, 2025
  If the audio function on your LG Digital Signage does not work, check if the audio cable is connected properly. Also, make sure that the volume is adjusted appropriately and that the sound is set correctly. You may also want to select the appropriate equalizer sound and adjust the volume again.
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tarawrightSep 4, 2025
What to do if after-image appears on the LG Digital Signage?
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  nthomasSep 4, 2025
  If an after-image appears on your LG Digital Signage, and you've been using a fixed image for a long time, the pixels may be damaged. To prevent this, use the screen-saver function. Also, when a dark image is displayed on the screen after an image with high contrast (black and white or gray), this may cause image sticking, which is normal for LCD screen products.
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Richard JonesSep 6, 2025
What to do if the operation does not work normally on LG Digital Signage?
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  Alexander DennisSep 6, 2025
  If the operation of your LG Digital Signage does not work normally, first check if the Timer is set. Also, examine the power control settings to ensure power is not interrupted.
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melissamitchellSep 8, 2025
What to do if the 'Unknown Product' message appears on LG Digital Signage?
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  Christopher EstradaSep 8, 2025
  If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the Plug and Play function is supported by referring to the video card user manual.

Summary

Important Safety Precautions

Electrical Power Safety

Guidelines for safe electrical connection and power usage to prevent hazards.

Product Installation Safety

Safety measures to ensure proper and secure installation of the product.

Safe Product Handling

Precautions to take when moving or handling the monitor to prevent damage or injury.

Usage and Cleaning Safety

Advice on safe product operation, cleaning procedures, and environmental considerations.

Assembly and Setup

Wall Mount Plate Installation

Wall Installation Requirements

Wall Mounting Safety Warnings

Remote Control Functions

Detailed Button Operations

Connecting External Devices

PC Connection Guide

External Media Device Setup

Troubleshooting and Solutions

Audio, Color, and Operation Fixes

Solutions for issues related to sound, screen color abnormalities, and operational malfunctions.

Preventing Screen Burn-In

Recommendations and best practices to avoid image sticking or screen burn-in on the LCD panel.

LG 22SM3B Specifications

General

Resolution	1920 x 1080
Panel Type	IPS
Brightness	250 cd/m²
Contrast Ratio	1000:1
Response Time	5 ms
Connectivity	HDMI, VGA
Viewing Angle (H x V)	178° x 178°
Aspect Ratio	16:9
Refresh Rate	60 Hz
Input Ports	1 x HDMI, 1 x VGA
Screen Size	22 inches
VESA Mount Compatible	Yes
Power Consumption	25W (typical)