19" LCD MONITOR
REV A
12
lights up.
4.3 Adjusting the image geometry
The display automatically recognizes the used standard, and set-up values for
each standard are preprogrammed. However, depending on the graphics card
used, it may still be necessary to align and size the picture for the selected
standard (see Section 6.1 "Picture adjustment"). Normally auto adjust will
work.
4.4 Adjusting the brightness and contrast
The brightness and contrast must be adjusted for the respective graphics card
(different output levels) in the system on site.
Note on adjustment
− Use the SMPTE test pattern.
− Adjust the brightness so that image sections with 5% and 0% blackness still
visibly contrast from one another.
− Adjust the contrast so that image sections with 95% and 100% whiteness
still visibly contrast from one another. To adapt the luminosity to the ambient
lighting, adjust the backlight brightness (note: 300 cd/m² factory setting is
then modified).
4.5 Screen saver
A screen saver function should be used in order to reduce "image sticking"
which can occur in TFT displays. It is high risk to display a static graphic
over half an hour. Image sticking is the effect where a faint image of the
previous screen contents can still be seen after the display contents have
changed. By using a screen saver with permanently changing screen contents,
unnecessary effects of the same image are avoided.
If the keyboard is locked, contact the servicing department in order to unlock
it. The guarantee is cancelled if you unlock it yourself!
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General