Quantum Data 701 Spécifications télécharger pdf (Page 21)

the entire screen, in a large portion of the screen, or localized in a very small area.

Raster

Description - Black display (nothing being displayed).

Application - Useful for centering the raster on a CRT. Many monitor applications require that the dis-

played image or text t completely within a bezel that surrounds the CRT. This usually requires that you

rst center the blank raster on the face of the CRT, and then center the image within the raster.

Cutoff

Description - The entire active video area is lled with a shade of gray.

Application - Useful for testing chrominence and contrast.

Window

Description - Single white box in the center of active video. The size of the box is one-third the width

and height of the active video area.

Application - Use for brightness control adjustment.

Focus

Description - This image lls the screen with white M characters.

Application - Used for testing focus.

ColorBar

Description - The image has 7 full-height vertical color bars.

Application - Useful for verifying that none of the video channels are bad or connected incorrectly.

GrayBar

Description - The image has 16 full-height vertical graybars. The intensity of the bars iincreases from left

to right. All bars are untined gray at all levels.

Application - Useful for testing brightness control adjustment and brightness uniformity tests.

Pattern Descriptions

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Quantum Data 701 Spécifications Page 21