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4 TROUBLESHOOTING
E
•Whenever an error signal message appears, the signal frequency will be displayed
in red.
•Error messages will remain on the screen for 30 seconds, and then disappear. An
error message may not appear at all if the signal frequency is extremely high or
extremely low.
(Example)
Problems
7) “Out of range” error
message appears.
n Imaging problems
Problems
1)The screen is partially dark.
2)The entire screen is dark.
Points to check with possible solutions
Use the graphics board’s utility software to change
the frequency setting. (Refer to the manual of the
graphics board.)
Points to check with possible solutions
The CRT is not warmed up. Allow 30 minutes for
the monitor to stabilize.
Degauss the screen. (Use the degaussing feature in
the ScreenManager’s “Others” menu. See page
31.)
This problem may be caused by the earth's
magnetism. Adjust the uniformity in the
ScreenManager's “Screen” menu. See page 20.
Adjust the contrast and brightness using the
ScreenManager’s “Screen” menu. See page 19.
Some signal timings can be the cause of this
problem. To correct this, turn off the monitor,
then hold down the AUTO-SIZING button and
“down” arrow key while turning on the monitor
again. This will change the signal timing and
brighten the screen. If the above operation is
repeated, the screen becomes dark again.