ADDER AdderLink X100 User Manual - Page 13
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Video compensation (sharpness and brightness)
Using the in-built X100 controls you can adjust the picture sharpness and
brightness to improve the remote picture quality.
Video compensation is best carried out 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 not
be able to solve this condition.
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.
Note: The Word processor method is accurate and quick. However, for the very
finest video compensation, use the latest Adder "skew" test pattern program
which shows both the skew pattern and a section of mixed size Hs (black on
white and white on black).
To apply remote user video compensation
High contrast
Black or bright
black character
white shadow
on white
on the right
background
indicates
the need for
sharpness
adjustment
1 On the keyboard that is connected to the X100 remote module,
simultaneously, press the hotkeys (by default,
enter configuration mode.
The three keyboard indicators ('Num Lock', 'Caps
Lock' and 'Scroll Lock') will now begin to flash in
sequence. The speed of the sequence indicates the
level of the sharpness adjustment currently applied:
the slower the rate, the lower the level of sharpness
being applied.
2 While viewing the displayed screen image, use the following keys to adjust
the controls:
Sharpness:
for fine adjustment,
There are 255 sharpness levels (one coarse step jumps 10 levels).
To autoset sharpness: Press
calculate and apply an automatic compensation level - you can
use this as a starting point for your fine tuning.
Note: If the monitor goes blank and switches off (due to oversetting
the sharpness adjustment) press the Home key to restore.
Brightness:
for adjustment. There are 255 brightness levels.
Restore default
sharpness and
brightness
settings
Exit image
controls
and save
settings
3 When no shadows are visible and the displayed images have crisp edges,
press
to exit configuration mode and permanently save all settings.
The new compensation settings will be stored, even when power is removed
or if a complete reset is initiated. These settings should not require further
changes unless the cabling arrangements are altered.
and
) along with
to
for coarse adjustment.
to make the module
Sharpness
increase
(coarse)
Sharpness
decrease
(coarse)
Sharpness
increase
(fine)
Brightness
increase
Sharpness
decrease
Brightness
(fine)
decrease