Quantum-data 801GC Manual do Utilizador descarregar pdf (Página 64)

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4-26 Chapter 4: Built-In Images

Model 801GC, 801GF & 801GX¥Rev. X1

Focus_H

Description In the primary version, the screen is filled with

white H characters on a black background. A bit

map of a single character is shown here.

The secondary version is drawn with black

characters on a white background.

Test Focus adjustment(s)

Purpose An out-of-focus monitor displays fuzzy graphic

images and poorly formed, hard-to-read text

characters.

Method On monitors with a single (static) focus adjustment,

adjust the control for the best average focus over

the entire screen. The focus at certain locations of

the screen should be within specified limits.

Some monitors have a static and one or more

dynamic focus controls. The sequence for adjusting

them and the areas of the screen that they affect

depend on the monitor you’re testing.

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