Eizo FlexScan F520 User Manual page 17

Problems
10) Moiré patterns are
distracting.
Flicker
The term "flicker" refers to noticeable shimmering that occurs when the image on the
screen is redrawn ("refreshed") too slowly. A refresh rate of 80 Hz means the image is
redrawn 80 times per second. Most people will notice flicker at image refresh rates as high
as 60 or 70 Hz, whereas refresh rates of 72 Hz or above usually is not noticeable. Flicker
is known to be the cause of visual fatigue.
11)The image is flickering.
12)• The entire screen appears
bluish or reddish.
• Color purity is not
uniform.
• Misconvergence of colors.
(red, green, blue)
Explanation of the Characteristics of CRTs
When the monitor is not fully warmed up, the screen may look slightly colored, e.g.
reddish or bluish. This phenomenon is due to the unstableness of the electron gun during
its warm-up period. Please wait for about 30 minutes until the monitor stabilizes in order
to gain its proper color.
13)Control Pad "ENTER key"
does not operate.
Points to check with possible solutions
Reduce the moiré using the ScreenManager's "Moiré"
adjustment menu following the procedure below.
1) Set the desktop to an every-other-dot pattern so that
moiré will be visible.
2) Go to the ScreenManager's "Moiré" menu and adjust
so that moiré becomes almost unnoticeable. See page
11.
3) Change to a different desktop background to reduce
moiré even further.
Change the horizontal and vertical dimensions of the
desplay area.
Change the selected desktop or wallpaper pattern to
any solid color pattern. For detailed information on
how to change these patterns, refer to the
documentation for the PC and operating system.
Flicker will occur with interlaced scanning, or
non-interlaced scanning with a low refresh rate. All
EIZO monitors are capable of reproducing high refresh
rates for non-interlaced scanning. If a problem occurs
when using a non-interlaced signal, try adjusting the
graphics board to increase the refresh rate (if possible).
Refer to the graphics board manual for information.
The CRT is not warmed up. Allow 30 minutes for the
monitor to stabilize.
The Adjustment Lock is probably on. To unlock: switch
off the monitor power, then hold down the down arrow
key of the control pad and switch the monitor back on.
See page 14.
3 TROUBLESHOOTING
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