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9
Colours are impure.
Check the signal cable and connector pins. If there are bent or missing pins,
consult your place of purchase.
Adjust related settings. See Chapter 3, Adjusting the Monitor.
Move any sources of magnetic fields away from the monitor. These include
speakers and power supplies.
9
There are two horizontal damper lines visible on the screen.
These lines are damper lines required by the aperture grille technology, They
usually blend into background and are not noticeable. They are to maintain
the aperture grille's alignment and prevent vibration or distortion of the
screen image. On a lightly-coloured screen, they may be visible and cast a
slight shadow on the screen.
9
Faint black vertical lines are visible on the screen:
The aperture grille may be mis-aligned. Shock or vibration during transport
may, in some cases, cause the aperture grille to move out of alignment. The
problem will appear as one or more faint black lines down the screen. If this
problem occurs, it may be solved by either degaussing the screen or by lightly
tapping the front and sides of the monitor. Allow the monitor to warm up for
30 minutes before doing this.
However, if neither of the above methods work, attempt the following:
a.)
Display a black field over the unaffected areas and a bright white field over the
area where the black line(s) appear. Do so 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 the lines.
b.)
Set brightness and contrast to their maximum values. Keep the display
on
until the problem is solved. Try tapping (again, do not hit) the side of the
display lightly to expedite realignment. The white field will heat up the mis-
aligned area of the grille, returning it to proper alignment. Be sure to return
the brightness and contrast settings to their normal levels after doing this.
Summary of Contents for DV17NF
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