PowerLite 1705c, Руководство пользователя

Страница: 161 / 198

Solving Problems
161
■
The video signal may be split between the computer and the
projector. If you notice a decline in the projected image quality
when the image is displayed simultaneously on your notebook
computer and the projector, turn off the notebook’s LCD display.
■
Make sure the correct input signal is selected in the Signal menu
(see page 119).
The image is blurry.
■ There may be dirt or smears on the lens. Clean the lens as
described on page 146.
■ Adjust the focus using the focus ring (see page 23).
■ Make sure the lens is not fogged by condensation. You may need
to wait before using the projector after moving it from a cold
environment to a warm environment.
■ Adjust the
Sharpness
setting on the Image menu (see page 117).
When you change video settings, you should be able to see the
effect on the screen immediately. If you’re projecting from a
computer, you may also need to adjust the tracking and sync as
described in the next section. If you don’t like the new settings,
you can always select
Reset
to return to the factory default
settings.
You see vertical bands or the image still looks blurry after
trying the solutions in the previous section.
■
If you’re projecting from a computer and displaying an image that
contains a lot of fine detail, you may notice vertical bands or some
of the characters may look heavy or blurred. Press the
Auto
button on the remote control to reset the projector’s tracking and
sync settings.
■
If further adjustment is needed, you can fine-tune the
Tracking
and
Sync
settings manually using the Signal menu, as described
on page 119.
1. Fill the screen with an image containing fine detail, such as a
pattern to appear as your desktop background, or try
projecting black text on a white background.