43
Symptom
Possible Cause
Solution
The handwriting
cannot be shown or
no touch signal is
detected.
The color of the pen is
the same as or similar to
the background color.
Change the color of the pen.
Your hand or other
objects are on the screen
when you are writing.
You are advised to use the pen
rather than a finger to write. Hold
the pen as far to the nib as possible.
The angle between the pen and
screen needs to be greater than 60
degrees. Do not touch the screen
with your sleeve or wrist.
Strong light or infrared
interference
Remove the interference source or
change the using environment.
The writing method is
incorrect.
You are advised to use the pen
rather than a finger to write. Hold
the pen as far to the nib as possible.
The angle between the pen and
screen needs to be greater than 60
degrees. Do not touch the screen
with your sleeve or wrist.
Not sound is played
and no image is
displayed.
●
Check whether the power plug is inserted into the power
socket and whether the screen is powered on.
●
Check whether the rocker switch on the interactive touch
screen is switched on.
●
Check whether the
Standby
button on the remote controller
is pressed.
●
Check whether the video and audio input cables are connected
correctly.
●
Check whether the screen is switched to the right signal source.
●
Check the settings on image brightness and contrast.
●
Check the volume.
Image is displayed
properly, but no
sound is played.
●
Check the volume.
●
Check whether the
Mute
button on the remote controller is
pressed.
●
Check whether the audio cable between the PC and interactive
touch screen is connected correctly.
No image is displayed
or the image is black
and white.
●
Modify the color settings.
●
Check the color system.
The image or sound
is interrupted.
●
Find out the electric appliance that causes the interference
and move it away from the interactive touch screen.
●
Do not share the power socket of the screen with the electric
appliance that causes interference.