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Maintenance and Troubleshooting
10.Q: Why is the cursor not at the position pointed?
A: The possible reasons for this are:
(1).The system not been well calibrated. Try to point to the "center" of green
cross target when you running calibration.
(2).The position of the projector, screen or projection size has been changed
(3).The image resolution been changed
Run the calibration procedure again will solve the problem.
11.Q: Why is the lightpen not working?
A: The reasons for this are:
(1).When using lightpen device, writing in shadow area won't work as the
signal can't be received by the sensor.
(2).Lightpen battery is low or battery cap is loose.
(3).Strong ambient light interference.
(4).USB cable not well connected.
12.Q: Why is the cursor jumping?
A: This is caused by strong ambient light interference.
strong ambient light interference especially strong sun light directly
projection on the screen.
13.Q: Why is the lightpen not working after the computer wake up from
standby?
A: In some cases if the computer goes into standby mode, the computer will
shot the USB port.
it again.
Remarks
1.The lightpen is working on light signal. Strong ambient light interference will
cause it to work abnormally.
(ex. Sunlight or Tungsten lamp directly projection to the screen or the sensor.
2.When using lightpen device, writing in shadow area won't work as the signal
can't be received by the sensor.
3.The operation system must be Windows 2000 service pack 2 and above.
USB port must support USB2.0.
4..It is required to use USB cable shorter than 1.5m
For more longer requirement such as ceiling application, please contact with your
dealer to purchase proper USB extension cable.
In this case, close the light pen program and then run
Make sure there is not strong ambient light
Try to avoid
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