User's Manual

11 Common Faults and Solutions
Symptom Possible Cause Solution
The service
program fails to be
connected.
The drive program is not
correctly installed.
Install the drive program correctly.
The USB port (lead) is not
connected or is faulty.
Change the USB lead or check if
the USB port is faulty.
The infrared tube is blocked.
Ensure that the surrounding infrared
tubes are not blocked.
Repositioning is
required every time
the panel is
switched on.
The computer is equipped
with a recovery card.
Disable computer protection and
perform the positioning again.
The positioning is
inaccurate.
The positioning is not
performed properly.
Press Auto on the remote controller
to show the full screen, and use the
pen provided with the panel to
perform positioning again.
The cursor of the
pen is unstable
when the pen is
used.
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.
Strong light or infrared
interference exists.
Remove the interference source or
change the using environment.
The handwriting is
discontinuous. (Part
of the handwriting
cannot be
displayed.)
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.