16
Calibration Operation Guide
Initial function of projected image correction
Step 3:
Use the exclusive electronic pen to touch the top left
corner, top right corner, central, bottom left corner, and
bottom right corner positions on the screen successively
as shown in the diagrams below:
IWB-770
‧
Please touch the central point of the top
left cross
‧
Please touch the central point of the top
right cross