Dell 4210X Projector - Manual (Page 63)

Troubleshooting Your Projector 63
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 XGA
(1024 x 768):
a Right-click the unused portion of your
Microsoft
®
Windows
®
desktop, click
Properties and then select Settings tab.
b Verify that the setting is 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. The
output signal from the computer may not be
according to industry standards. Should this
happen, upgrade the video driver of the
computer. For a Dell computer, see
support.dell.com.
The screen does not display
your presentation
If you are using a 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
(3.94 ft [1.2 m] to 32.81 ft [10 m]).
Problem (continued) Possible Solution (continued)