Dell 7609WU Projector - Manual (Page 45)

Troubleshooting Your Projector 45
Partial, scrolling, or
incorrectly displayed image
1 Press the Auto Adjust button on the remote
control or the control panel.
2 If you are using a Dell™ portable computer,
set the resolution of the computer to WXGA
(1280 x 800) or XGA (1024 x 768):
a Right-click the unused portion of your
Windows desktop, click Properties and
then select Settings tab.
b Verify that the setting is 1280 x 800 or
1024 x 768 pixels for the external monitor
port.
c Press (Fn+F8).
If you experience difficulty in changing
resolutions or your monitor freezes, restart all
the equipment and the projector.
If you are not using a Dell™ portable
computer, see your documentation.
If problem persists, upgrade your computer
graphic card driver (video driver) to its latest
version and test again with projector.
The screen does not display
your presentation
If you are using a Dell™ portable computer,
press (Fn+F8).
Image is unstable or flickering Adjust the tracking in the OSD Display sub-
menu (in PC Mode only).
Image has vertical flickering
bar
Adjust the frequency in the OSD Display sub-
menu (in PC Mode only).
Image color is incorrect • If the display receives the wrong signal
output from the graphics card, please set the
signal type to RGB in the OSD Display tab.
• Use Test Pattern in the Others menu.
Ensure that the colors of the test pattern are
correct.
Image is out of focus 1 Adjust the focus ring on the projector lens.
2 Ensure that the projection screen is within
the required distance from the projector
(3.28 ft [1 m] to 39.37 ft [12 m]).
Problem (continued) Possible Solution (continued)