The X2 Multi Screen modules incorporate special controls to compensate for
losses incurred within long cable links. Using these controls you can adjust the
picture sharpness and brightness to improve your remote picture quality. The
controls allow you to either affect all of the video channels collectively, or where
losses are inconsistent, select and adjust channels individually.
The need for image control adjustment is best discovered when viewing high
contrast images with vertical edges, such as black lines on a white background.
When doing so, if you notice that the screen image is ‘fuzzy’ or ‘dark’ then the
image controls may be able to solve this condition.
Note: If the high contrast images exhibit shadows with separate colours, then
there may be a skew problem which requires a different image adjustment - see
the ‘Skew adjustment’ section for details.

High contrast
black character
on white
background

Black or bright
white shadow
on the right
indicates
the need for
sharpness
adjustment

To display a suitable high contrast image
The best way to clearly view the effect of sharpness and brightness adjustments
is to display a high contrast image, with vertical edges, on the screen.

• Open a word processor, type the capital letter

‘H’, or ‘M’ and increase the point size to 72 or
higher. For best results, the background should
be white and the character should be black.

• A BLACK shadow on the right of the character

indicates UNDER compensation.

• A WHITE shadow on the right of the character

indicates OVER compensation.

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