Epson EMP-7700 - XGA LCD Projector, Руководство пользователя

Страница: 78 / 116

72
Solving Problems
The image isn’t square, but trapezoid-shaped.
■
Make sure the projector isn’t placed off to one side of the screen,
at an angle, or the image won’t be square. Place the projector
directly in front of the center of the screen, facing the screen
squarely.
■
If you’ve tilted the projector upward by extending the legs, the
image will be broader at the top. Hold down the
+
or
–
side of the
Keystone
button on top of the projector until the image is
square.
The image is blurry or poor.
■ There may be dirt or smears on the lens. Clean the lens as
described on page 58.
■ Adjust the focus using the focus ring.
■ Adjust the settings on the Video menu (see page 44). When you
change video settings, you should be able to see the effect on the
screen immediately. If you don’t like the new settings, you can
always select
Reset
to return to the factory default settings.
■ If you’re using a computer cable longer than 6 feet, or an
extension cable, the image quality may be reduced.
■ 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 laptop
computer and the projector, turn off the laptop LCD display.
The image is flickering or “noisy,” or you see vertical lines.
If you’re projecting from a computer, try pressing
Auto
on the remote
control or
Enter
on the control panel. This resets the computer
display settings automatically.
If that doesn’t work, you may need to adjust the
Tracking
and
Sync
settings manually using the buttons on the control panel. Hold down
each button to change the setting until your image looks correct. It is
best to project a gray screen (or the screen you see when you exit
Windows) when you adjust these settings.
note
Images will be projected more
vividly if you adjust the
Tracking
before the
Sync
.
7700.book Page 72 Wednesday, November 1, 2000 6:15 PM