Why do black spots appear on the screen of my LG Monitor?
If black spots appear on the screen of your LG Monitor, this may be due to several pixels (red, green, white, or black color) which is attributable to the unique characteristics of the LCD panel and is not a malfunction.
Why is there no sound coming from my LG Monitor?
If there is no sound coming from your LG Monitor, ensure the audio cable is connected properly. Also, adjust the volume and verify that the sound settings are configured correctly.
Why does the screen image look abnormal on my LG Monitor?
If the screen image on your LG Monitor looks abnormal when using a D-Sub analog signal, press the "AUTO" button on the remote control to automatically select the optimal screen status. If the adjustment is not satisfactory, select [PICTURE] - [Screen] - [Position], [Size] or [Phase] in the OSD menu. Also, 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. Ensure the proper input signal is connected to the signal port by using a matching signal cable.
How to turn off 'Key Lock On' on LG 42LT55A Digital Signage?
If your LG Digital Signage displays a 'Key Lock On' message, the Lock function prevents the OSD settings from being changed inadvertently. To release the lock, go to Menu and Option and disable the Key Lock option.
How to turn off Key Lock on my LG Monitor?
If the 'Key Lock On' message appears when pressing the Menu button on your LG Monitor, the Lock function prevents the OSD settings from being changed. To release the lock, go to Menu and Option and disable the Key Lock option.
Why is touch location incorrect on LG 42LT55A?
If the location of a touch on your LG Digital Signage does not correspond to the touch coordinates, it may be that the touch screen is not calibrated properly. To resolve this, change your tablet PC settings (Windows 7) by going to Control Panel > Hardware and Sound > Tablet PC Settings > Display > Display options > Calibrate or Reset. Additionally, if using Windows XP, change the display setting to Full Screen. When using HDMI, set the Input Label to PC.
Why does 'Unknown Product' appear on my LG 42LT55A?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, see if the plug&play function is supported by referring to the video card user manual.
How to correct touch input on the wrong monitor with LG Digital Signage?
If a touch is applied to a monitor other than the one you intended with your LG Digital Signage, change your tablet PC settings (Windows 7). For Windows XP, set the monitor as the default monitor.
Why can't I start LG TDS on my LG 42LT55A Digital Signage?
If you cannot start LG TDS, check whether the operating system is Windows XP, as LG TDS is supported only in Windows XP. Please install .NET Framework 3.5.
How to fix the audio on my LG 42LT55A Digital Signage?
If the audio function on your LG Digital Signage does not work, check if the audio cable is connected properly. Also, ensure that the volume is appropriately adjusted and the sound settings are correctly configured.
General| Brand | LG |
|---|---|
| Model | 42LT55A |
| Category | Digital Signage |
| Language | English |
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