Eizo CuratOR LX491W Instructions For Use Manual page 25

RGB video sources (via 15-pin D-sub or DVI-I connector) supply analog signals that are ba-
sically intended for conventional CRT monitors and that are processed directly by them.
In contrast, the analog signals must be converted into digital signals for the LCD monitor by
a video digitizer. Depending on the video source, cable length, and video mode (e.g. VGA,
SVGA, XGA), this conversion may cause certain deviations that cannot be fully corrected by
the monitor automatically.
• Perform a manual fine adjustment to obtain the optimum image display with an analog
input signal (VGA/DVI-I). During the manual fine adjustment, fine tune the monitor (or
video digitizer to be more precise) to the respective video source.
Adjusting the monitor for optimum performance with a graphics card
In order to optimize the monitor settings for the installed graphics card and guarantee that
all gray scales can be distinguished, we recommend only adjusting the brightness and con-
trast for the analog inputs.
Please note that these settings have no impact on the calibration in the look up table: EIZO
GmbH monitors are calibrated at the factory and maintain these settings:
• To reduce the brightness using the OSD operator controls, use a picture with 0 % gray
scale (black) and a suitable measuring instrument.
Reduce the brightness until the measuring instrument displays constant values: the mea-
sured value no longer changes.
Then increase the brightness slightly until the monitor is just above the lowest black level
(one step is generally sufficient).
• To set the white value, use a test pattern with 100 % gray value (white) and a suitable
measuring instrument.
To ensure the black value remains unchanged, set the contrast only.
• Increase the contrast until the measuring instrument no longer registers an increase in
luminance.
Then adjust the contrast regulator setting 1 or 2 steps back until the measured brightness is
just under the maximum value.
• Make sure once again that the black value has not changed.
The black value can change if significant corrections were made to the contrast. In this
case, repeat the steps above.
Result
The monitor is now configured for optimum performance with the installed graphics card. If
the luminance is still not satisfactory, you can increase the black and white values further by
adjusting the backlight in the OSD menu.
CAUTION
Permanently higher setting for backlight
The permanently higher setting for backlight reduces the service life and brightness perfor-
mance.
CuratOR LX491W
Instructions for Use, 02/2018
6.5 Adjustment of monitor and video source
Commissioning
25