NEC MultiSync LCD1550ME Service Manual page 28

Image is unstable, unfocused or swimming
is apparent
• Signal cable should be completely attached to the computer.
• Use the OSM Image Adjust controls to focus and adjust display by
increasing or decreasing the fine total. When the display mode is
changed, the OSM Image Adjust settings may need to be readjusted.
• Check the monitor and your display card with respect to compatibility
and recommended signal timings.
• If your text is garbled, change the video mode to non-interlace and
use 60 Hz refresh rate.
Message "OUT OF RANGE" is displayed (screen is
either blank or shows rough images only)
• OSM warning "OUT OF RANGE" is displayed on a blank screen:
Signal frequency is out of range. Choose one of the supported
modes.
LED on monitor is not lit (no green or amber colour
can be seen)
• Power Switch should be in the ON position and power cord should be
connected.
• Make certain the computer is not in a power-saving mode (touch the
keyboard or mouse).
Display image is not sized properly
• Use the OSM Image Adjust controls to increase or decrease the
H.Size.
• Check to make sure that a supported mode has been selected on the
display card or system being used. (Please consult display card or
system manual to change graphics mode.)
Selected resolution is not displayed properly
• Use OSM Display Mode to enter Information menu and confirm that
the appropriate resolution has been selected. If not, select
corresponding option.
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