20 4. TROUBLESHOOTING
Problems Points to check with possible solutions
Adjust the <Contrast> (Contrast and Brightness).
Some signal timing can be the cause of this problem. To
correct this, turn off the monitor, then hold down the
“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.
When the monitor is not fully warmed up, the screen may
look slightly colored, e.g. bluish or reddish. This
phenomenon is due to the unstableness of the electron gun
during its warm-up period. Wait for about 30 minutes
until the monitor stabilizes in order to gain its proper
color.
Adjust the <Degauss>.
Return the factory default setting by using <Reset>.
Note that all the ScreenManager parameters will be
returned to the factory default setting. (p. 22)
Adjust the <Uniformity>.
Try adjusting the <Convergence>. The <Convergence>
function adjusts the entire screen. It is not possible to
limit adjustment to specific screen areas.
The Auto sizing function is intended for use on the
Macintosh and on AT-compatible PC running Windows.
It may not work properly if either of the following cases.
• You are running an AT-compatible PC on MS-DOS
(Not windows).
• The background color for the “wall paper” or
“desktop”pattern is set to black.
Some signals from graphics board may not function
properly.
The Adjustment Lock is probably on.
To unlock: Turn off the monitor power, then hold down
the AUTO-SIZING button once again and turn the power
back on. (p. 17)
The AUTO-SIZING function may be set “Fine Contrast”
in the <Button Setting>. Change the setting to “Auto
Sizing”. (p. 15)
8. The entire screen appears
too dark or bright.
9. Color is abnormal.
• The entire screen appears
bluish or reddish.
• Color purity is not
uniform.
• Misconvergence of
colors(red, green, blue)
10. AUTO-SIZING button
does not work properly.
11. ScreenManager/AUTO-
SIZING button does not
operate.
