Phenomenon Cases not involving a machine defect
Reference 
page
Pen action is 
unstable or pen 
stops operating.
Is the power supply for the projector used at the 
same time for other electrical products that require a 
measurable amount of power? 
Use a separate power supply for other electrical products 
with a high power consumption.
14
Is dust accumulated on the two horns of the pen sensor?
Check the horns of the pen sensor, and remove any dust 
accumulated on them using a vacuum cleaner.
107
The “StarBoard Software” les may be corrupted, or 
installation may not have completed successfully.
Uninstall the “StarBoard Software” and reinstall it.
86
Has the battery run out?
Replace it with a new one.
19
Other than those above
・
 Disconnect the power supply for the projector and connect 
again.
・
 Restart Windows
®
 and “StarBoard Software”.
14
Lines cannot be 
drawn properly 
or are broken.
Has the battery run out?
Replace it with a new one.
19
Is dust accumulated on the two horns of the pen sensor?
Check the horns of the pen sensor, and remove any dust 
accumulated on them using a vacuum cleaner.
107
Is the tip of the pen worn out?
Replace the tip of the pen with a new one.
19
The tip of the 
pen does not 
coincide with 
the pen cursor.
Is calibration of the pen position correctly performed?
Perform calibration of the pen position.
For more details, refer to the manual for the “StarBoard 
Software” in the bundled DVD-ROM.
–
Is the projector inclined?
Install the projector correctly and horizontally before 
performing calibration of the pen position.
–
(continued on next page)
Phenomena that may be easy to be mistaken for machine defects (continued)
Troubleshooting