OPERATION
Geometry ➤ Functions
GEOM 1
GEOM 2
GEOM 3
Geometry functions are accessed through the Geometry menu. To display this menu, press GEOM .
Note: It is usually easier to adjust display geometry while a test pattern ( 
) is displayed.
Size
The Size function is used to adjust the horizontal and vertical size of the display image. (This adjustment is also available through the Picture menu).
To adjust size, select Size from the Geometry menu. Two slidebars are dis- played: a Horizontal Size slidebar and a Vertical Size slidebar. Press 
or 
to adjust vertical size, and 
or 
to adjust horizontal size until the objects within your picture have the proper shape. For example, if there is a circle in your picture, size should be adjusted so that the circle is round, not oval.
Note: The Size function should not be used to compensate for aspect ratio mis- matches between source images and the projection screen. Not all sources use the same aspect ratio therefore it may not always be possible to fill the entire screen. (“Aspect Ratio” is defined in Appendix A).
Keystone
The Keystone function adjusts side keystone geometry distortion. Adjust keystone to change the width at the top of the display in relation to the width at the bottom. The displays below demonstrate keystone adjustment.
To adjust keystone, select Keystone from the Geometry menu then press 
or 
to adjust the top and bottom widths of the display as desired.
Side Pin
The Side Pincushion function adjusts pincushion of the sides of the display image.
The two displays shown below demonstrate side pincushion adjustment.
To adjust side pincushion, select Side Pin from the Geometry menu then press
or 
until the sides of the image are as curved or as straight as desired.
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