NEC NP-PA600 Series User Manual page 24

First: Completely black image
Third: Image of dots (Five dots at screen center)
Test images for the number of projectors connected will be sent and projected.
* The web camera photographs the screen on which the test image is projected, and this is used as
the calculation data for stacking/tiling correction.
When an error message is displayed at the time of sending the test image, and calibration cannot be
completed, please see "Calibration" (
There will be a return to the Multi Screen Tool screen upon completion of the calibration.
8. Click [OK]
This completes stacking/tiling correction.
• The computer and web camera used for calibration can be disconnected after calibration is completed.
Note
• When GEOMETRIC CORRECTION is set, KEYSTONE and CORNERSTONE cannot be selected.
• Hold down the 3D REFORM button for 2 seconds or longer to clear the GEOMETRIC CORRECTION data that has
been set.
• GEOMETRIC CORRECTION performs an electrical correction and as such there may be a resultant drop in
brightness or deterioration of picture quality.
• Exceeding the limits of the correction or other factors may result in distortion of the picture or correction not being
applied at all.
Reference
• After correction, fine adjustment is permitted with lens shift or lens zoom focusing.
• The images on the screen may slip out of position due to changes in conditions after installation, etc.
Perform stacking/tiling correction periodically to maintain precision.
5. Performing Stacking/Tiling Correction
Second: Completely white image
Fourth: Image of dots (Screen full of dots)
Page 25), and "Error Message List" (
24
Page 27).