Hitachi CP-TW2503 User Manual page 144

Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
The pen does
not operate.
Pen action is
unstable or pen
stops operating.
Lines cannot be
drawn properly
or are broken.
144
Cases not involving a machine defect
Is transmission between the pen and the projector
obstructed?
Make sure that the area between the sensor at the top
surface of the projector and the screen is not obstructed
(transparent and meshed objects are also not allowed). For
example, the Interactive Function does not function if the
projector is enclosed with only the lens exposed, such as
when a casing for theft prevention is used.
Is the camera lens dirty?
If the camera lens is dirty, wipe it off with a lens cleaning
cloth.
Other than those above
Remove and insert the USB cable.
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.
Has the battery run out?
Replace it with a new one.
Is driver software U-Pointer set to "Finger Touch
Mode"?
Set driver software U-Pointer to "Pen Mode" except when
using the optional part Finger Touch Unit (FT-01).
Other than those above
• Disconnect the power supply for the projector and connect
again.
• Restart Windows
Has the battery run out?
Replace it with a new one.
Is the tip of the pen worn out?
Replace the tip of the pen with a new one.
®
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