LG 84WT70PS Owner's Manual page 58

58
TROUBLESHOOTING
I have a problem with touch response.
Problem
Touch does not respond.
The location of a touch does
not correspond to the touch
coordinates.
A touch is applied to a monitor
other than the one I intended.
I cannot use 10 touch points in
Windows 7 / 8 (Enterprise).
y Check the USB cable connection.
- This may occur when the USB cable between PC and monitor is not
connected. Check the USB cable and make it firmly connected.
* Check the connection on Windows 7 / 8 (Enterprise)
Control Panel > System and Security > System
- Check the number of touch-points supported under Pen and Touch.
y Check the PC power.
- This may occur when the PC is powered off. Make sure that your
PC's power cord is firmly plugged into a power outlet.
y 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.
y Check the signal cable connection.
- If your PC and monitor are not connected using a signal cable, touch
does not respond. Check the signal cable connection.
y Check the monitor power.
- Touch may not respond when the monitor is powered off. Check if
the power indicator turns red and the screen is displayed.
y Check if the screen is currently on.
y Change your tablet PC settings (Windows 7 / 8 (Enterprise)).
- This may occur when the touch screen is not calibrated properly.
Control Panel > Hardware and Sound > Tablet PC Settings > Display
> Display options > Calibrate or Reset
* For information about gestures and settings on Windows 7 / 8
(Enterprise), refer to the Windows Help.
y Set the monitor as the default monitor.
- This may occur if the monitor is not set as the default monitor when
you are using multiple monitors.
Go to Control Panel > Display > Settings tab > Select the monitor >
Use this device as the primary monitor (U) > Apply (A)
y Change your tablet PC settings (Windows 7 / 8 (Enterprise)).
- This may occur when the touch screen is not calibrated properly.
Go to Control Panel > Hardware and Sound > Tablet PC Settings >
Display > Display options > Calibrate or Reset
y Make sure that you use a content that supports up to 10 touch points.
- The content played (e.g. Flash Player, Paint, etc.) may not support
10 touch points.
y Remove the USB cable and connect it again in 10 seconds.
y Run the content (e.g. Flash Player, Paint, etc.) again.
y Restart your PC.
y If the gap between two touch points is 20 mm or less, the touch error
may occur.
y On the edge of the touch screen, 10 touch points may work unstably.
Resolution