52
Symptom Possible Cause Solution
The handwriting is
discontinuous. (Part of
the handwriting cannot be
displayed.)
Strong light or infrared
interference exists.
Remove the interference
source or change the
using environment.
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 display 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
display needs to be greater
than 60 degrees. Do not
touch the display 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
display needs to be greater
than 60 degrees. Do not
touch the display with your
sleeve or wrist.
No sound is played and no
image is displayed.
•
Check whether the power plug is inserted into the
power socket and whether the display is powered on.
•
Check whether the rocker switch on the interactive
display 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 display 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 display is connected correctly.
11 COMMON FAULTS AND SOLUTIONS
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