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26 5. TROUBLESHOOTING
The aperture grille may be misaligned. Shock or
vibration during transport may, in some cases, cause the
aperture grille to fall out of alignment. The problem will
appear as one or more faint black lines across the screen.
If this problem occurs, it may be solved by:
1. Degaussing the screen.
2. Lightly tapping (do not hit) the side of the monitor.
If neither of these methods works, try executing the
following procedure.
1. Display a bright white field over the area where the
black line(s) appear, with a black field over the
unaffected areas. (Do this by opening a bright-white
window on top of a black desktop or wallpaper
background. Position the window so that it just covers
the area of misalignment.)
2. Set brightness and contrast to maximum values, and
keep the display ON until the problem is corrected.
Try tapping the side of the display lightly to help
expedite realignment. The white field will heat up the
misaligned area of the grille, returning it to proper
alignment.
Problems Points to check with possible solutions
15. Faint black vertical lines
are visible on the screen.
16. USB function cannot be
setup.
Check that the USB cable is correctly connected.
Check that the PC and OS are USB compliant. (Please
consult the manufacturer of each device about USB
support.)
When using the Windows 98/Me/2000, check the BIOS
setting of the PC for the USB. (Refer to the PC manual
for details.)