LG 86TN3F Owner's Manual page 25

I have a problem with touch response.
• Touch does not respond.
- This may occur when the USB cable between PC and product is not connected. Remove the USB cable and connect
it again in 10 seconds.
- Make sure that your PC's power cord is firmly plugged into a power outlet and restart your PC.
- Touch may not respond when the system is down due to the unstable network. Reconnect the LAN cable or restart
your PC.
- If your PC and product are not connected using a signal cable, touch does not respond. Check the signal cable
connection.
- Touch may not respond when the product is powered off. Check the product power.
- If you do not use a grounded outlet, it may cause a break or touch error. 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.
If touching the screen only with nail or fingertip
If holding the tip of the touch pen or near the tip of the touch pen
If using the touch pen while pressing it with strong force on the screen
- Touch pen will stop working when its battery is drained. In this case, please replace the battery.
- If the vertical frequency for screen resolution is not 60 Hz, the touch may not work properly.
• The location of a touch does not correspond to the touch coordinates.
- This may occur when the touch screen is not calibrated properly. Change your tablet PC settings.
• A touch is applied to a monitor other than the one I intended.
- This may occur if the monitor is not set as the default monitor when you are using multiple monitors. Set the
monitor as the default monitor.
- This may occur when the touch screen is not calibrated properly. Change your tablet PC settings.
• Multi-touch does not respond.
- The content played (e.g. Flash Player, Paint, etc.) may not support Multi-touch points. Make sure that you use a
content that supports Multi-touch point.
- Remove the USB cable and connect it again in 10 seconds.
- Run the content (e.g. Flash Player, Paint, etc.) again.
- Restart your PC.
- On the edge of the touch screen, multi-touch may work unstably.
- If the gap between two touch points is 20 mm or less, the touch error may occur.
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