User's Manual

41
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Before you contact the technical support staff, please identify a fault according
to the following table. If the fault cannot be restored based on the solutions,
contact the local distributor for help. For your safety, please do not repair the
product by your own.
Failure 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 calibration is
inaccurate.
The positioning is not
performed properly.
Press $872 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
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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.