Nortel Networks 822p - Manual (Page 84)

84 Solving Problems
You see vertical stripes 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 one or more vertical
stripes or bands, or some of the characters may look heavy or
blurred. Press the
Enter/Auto button on the remote control to
automatically reset the projector’s tracking and sync settings.
■ If necessary, you can manually adjust the Tracking and Sync
settings on the Signal menu as described on page 55.
To help you adjust these settings, fill the screen with a detailed
image, such as a desktop background pattern or black text on a
white background. Adjust the
Tracking setting to eliminate
vertical stripes; adjust the Sync setting to increase the sharpness.
The colors of the image are not right.
■ Try selecting a different Color Mode. See page 53 for
instructions.
■ If you’re displaying video, adjust the Color Saturation and Tint
settings on the Image menu. See page 53 for instructions.
■ Adjust the Brightness , Contrast , and Color Adjustment
settings on the Image menu. See page 53.
■ Make sure the input signal setting on the Signal menu matches
the signal from the connected device. See page 54 for details.
If the image is too purple and you’ve connected a computer or
RGB video device to the
Computer1 or Computer2 port, select
Computer as the input source. If you’ve connected a component
video device to one of these ports, select Component Video .
If you’re projecting from a composite video or S-Video source,
select the correct
Video Signal is selected on the Signal menu.
■ Check your computer display settings to correct the color balance.
■ If the image seems dark, the lamp may be nearing time for
replacement. Check the lamp hours as described on page 60 and
replace it, if necessary, as described on page 72.
note
Because of the different
technologies used, your
projected image may not
exactly match the colors on
your laptop or computer
monitor.