Cleaning and Troubleshooting 37
Calibrating the Cameras
Digital cameras in the corners of the interactive screen track objects like your finger or a
stylus. Each camera is calibrated to recognize the position of a pen tray tool or your finger on
the screen’s surface and to send this information to the SMART Board software. The software
then interprets the information as mouse clicks or electronic ink in the appropriate location.
Here’s how the system works: The cameras constantly scan the screen surface. When a
camera detects a target, its processor identifies the affected pixel and calculates the angle at
which it occurs. The cameras are all carefully calibrated before they leave the factory so that
these angles will intersect.
If the cameras become misaligned for any reason, those angles will no longer intersect at all
points, targets will not be detected, and you may experience “broken ink” (gaps in your writing)
or an area of the screen that’s unresponsive to touch.
Fortunately, this problem is easily fixed by performing a simple calibration procedure, as
described below.
1. Press the SMART Board icon in the system tray (Windows computers) or in the Dock
(Macintosh computers), and select Control Panel.
2. Press SMART Board Settings.
3. From the Hardware Info & Settings drop-down list, select Advanced Settings.
The Edit Advanced Board Settings dialog appears.
4. In DViT Settings, press the Calibrate button.
The 4-point calibration screen appears.
5. Press the center of each target and hold until the target moves.
After you press the final target, the orientation screen appears.
6. Complete the 4-point orientation.
7. Press OK.
To calibrate the cameras
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