What to do if the 'Unknown Product' message appears when my LG Monitor is connected?
If the 'Unknown Product' message appears when your LG Monitor is connected, check if the Plug & Play function is supported by referring to the video card user manual.
Why is the screen color abnormal on my LG Monitor?
If the screen color on your LG Monitor appears abnormal, and the color resolution is poor (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 and try re-inserting the PC video card. Note that the appearance of several pixels (red, green, white, or black) is not a malfunction of the LCD.
Why does my LG Monitor display no image?
If your LG Monitor is not displaying an image, ensure the power cord is correctly plugged into the power outlet and that the signal cable between your PC and the monitor is securely connected. Also, make sure to check the input signal by pressing the INPUT menu on the remote control. If the signal from the PC is out of the vertical or horizontal frequency range, adjust the frequency range by referring to the Specifications in this manual. The maximum resolution is 1920 x 1080 (60Hz).
What to do if the 'Unknown Product' message appears when connecting LG 42LS55A Digital Signage?
Check if the Plug & Play function is supported by referring to the video card user manual.
Why does an after-image appear on my LG 42LS55A Digital Signage?
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; use the screen-saver function to prevent this. 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.
Why did the power suddenly turn off on my LG 42LS55A?
If your LG Digital Signage suddenly turned off, check if the Timers are set. You should also review the power control settings and make sure there wasn't a power interruption.
How to fix abnormal screen color on LG 42LS55A?
If the screen color on your LG Digital Signage is abnormal, set the number of colors to more than 24 bits (true color) by selecting Control Panel - Display - Settings - Color Table menu in Windows. Also, check the connection status of the signal cable and re-insert the PC video card. 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.
Why does the screen image look abnormal on my LG Digital Signage?
If the screen image on your LG Digital Signage looks abnormal, verify that the video card resolution and frequency are supported by the product. If the frequency is out of range, set it to the recommended resolution in the Control Panel Display Setting menu. Also, ensure the correct input signal is connected to the signal port by connecting the signal cable that matches the source input signal.
How to fix 'Unknown Product' message on LG 42LS55A?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the Plug & Play function is supported by referring to the video card user manual.
Why after-image appears on LG 42LS55A Digital Signage?
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. Use the screen-saver function to prevent this. Also, when a dark image is displayed after an image with high contrast, image sticking may occur, which is normal for LCD screens.
General| Screen Size | 42 inches |
|---|---|
| Display Type | LCD |
| Resolution | 1920 x 1080 |
| Aspect Ratio | 16:9 |
| Brightness | 450 cd/m² |
| Contrast Ratio | 5000:1 |
| Viewing Angle (H/V) | 178°/178° |
| Output | Audio Out |
| Speaker | 10W + 10W |
| VESA Mounting | 200 x 200 mm |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
| Standby Power Consumption | 0.5W |
| Response Time | 8 ms |
| Input | HDMI, Composite, Component, USB |
Lists all included items in the product box.
Step-by-step guide on how to attach the monitor stand.
Instructions for attaching and connecting external speakers to the monitor.
Safety warnings and procedures for installing the monitor on a wall.
Additional instructions and critical safety warnings for securing the monitor to a wall mount.
Instructions for connecting a computer to the monitor using various ports.
Steps to connect USB drives and tips for their use during media playback.
Adjusting picture quality parameters like brightness, contrast, and color modes.
Adjusting audio modes, effects, volume, and AV sync.
Troubleshooting steps for no image, unknown product messages, and abnormal screen display.
Solutions for after-images, color abnormalities, and screen defects.
Troubleshooting no sound, dull sound, and unexpected power-offs.
Instructions for connecting multiple monitors via RS-232C and pinout details.
A comprehensive list of commands and their data for controlling the monitor.
Details the format and structure of commands and acknowledgments for communication.
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