Avtek TT-BOARD 3000 Gebrauchsanweisung Seite 16

5. Troubleshooting
Please refer to this list if your whiteboard uses standard USB connection:
Problem
Interactive whiteboard does
not work.
Calibration points do not
appear.
Cannot write.
Wireless pen can write, but
there is warp.
Wireless pen can write but
very slowly.
In case of further problems, it is recommended to contact the authorized Avtek whiteboards service.
Please contact your seller for more details.
Symptom
Automatic installation of
Human Interface Device
has failed.
Cannot see the calibration
points.
Can see the mouse pointer
move, but there is no stroke.
Under desk mode, can see
the mouse pointer move,
but under writing mode,
cannot write.
Only some area is warped.
The stroke is slower than
the pen tip.
Possible reason
Due to Windows OS
limitations, some versions
thereof may fail to detect
Human Interface Devices.
USB cable is damaged.
USB port on your computer
is damaged.
A part of the image
displayed by the projector
falls outside the whiteboard
projection area.
The software is not in
writing mode.
Stroke colour is same to
background colour.
Bad calibration.
The displayed image is
distorted.
Anti-virus software.
The computer is running
too many applications.
The computer is not
efficient enough.
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Solution:
Install an external driver.
Double check if your USB
cable does not have signs of
damage, and then check the
whiteboard using another
USB cable.
Connect USB cable to
another USB port on your
computer.
Make sure that the projector
does not display calibration
points outside the
whiteboard projection area.
If so, readjust the projector
settings and its position
towards the whiteboard.
Switch to writing mode.
Change stroke colour or
background colour.
Re-calibrate the whiteboard.
Change the projector
settings.
Close anti-virus software.
Close some applications
you do not use.
Upgrade your computer
hardware.