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Maintenance and Troubleshooting
4.Q: Why can't install the program?
A: You might need to log in as "administrator" to be able to install program to
your computer.
In addition, program will be deleted if you install twice due to the setting of
program. In this case, please install again.
5.Q: Why is it showing "No lightpen found"?
A: The possible reasons for this might be:
(1).USB cable not well connected
Please check and make sure the cable is well connected between PC and
Projector.
* Some Anti-virus program will disable the USB port.
anti-virus program and start the "LightPen" program again.
(2).USB driver is not well installed
(3).The length of USB cable is too long. The USB cable should be shorter
than 1.5M. If you would like to require longer cable then please
purchase proper USB extension cable from your dealer.
(4).USB port on computer malfunction
Please check if the USB port is functioning. If not, please consult with
I/T engineer.
Some note book computer will disable USB ports when the battery is low.
Please try to use AC power. Some note book computers do not
provide standard 500mA to the USB ports or the USB converter is not
working properly, in this case please use our standard USB cable.
6.Q: Why the green cross target does not appear after running lightpen
calibration?
A: This is signaling too weak caused by using USB cable either poor quality or
too long. Try a better quality USB cable or use proper USB extension cable.
7.Q: Why can't I make the green cross target turn into black in calibration
procedure?
A: Possible reasons are the wand or light pen is out of battery or the system
not working properly caused by strong ambient light interference.
8.Q: Why the green cross target turns into black itself?
A: This is caused by strong ambient light interference. Try to control the
ambient light.
9.Q: What is considered as "strong ambient light interference"?
A: Strong ambient light is usually caused by the following:
(1).Sun light direct projection on the screen. You can use curtain to avoid this.
(2).Tungsten lamp working close to the sensor. Try to move the tungsten
lamp away from the sensor or switch it off.
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Consult with your I/T engineers to help you in this case.
Please close the
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