36
Troubleshooting
Keep the light pen and project screen
at an angle of 25 degree or more
against each other
Avoid writing in shadowy areas.
(2) The ambient lighting may be too bright to work properly. Please
keep the projection screen and sensors from direct ambient lights.
Strong ambient light is usually caused by the following:
(2-1) Sunlight through the windows near the screen.
(2-2) Light source working close to the sensor or the screen.
Please quit the SPDriver and execute again, if you see the window
shown as Q5. Please take the light out until you can't see any light in
Window
.
Q3: How come the cursor is not located where the light pen is
pointed to?
A: It may be caused by the following:
(1) Poor system calibration. Try to point to the "center" of circle target when
you run calibration.(See Page 11~12 or Page 26, Page 34)
(2) The project location, projection size, or projection distance may be
changed.
(3) The projection resolution may have been changed.
Please calibrate again to solve this problem.
Q4: How come the cursor jumps around?
A:
The ambient lighting may be too bright to work properly. Please keep
the projection screen and sensors from ambient light interference,
especially direct sun light.(Please refer to Q2.)