Dell 7700HD Projector - Manual (Page 101)

4
Troubleshooting Your Projector
If you experience problems with your projector, see the following troubleshooting
tips. If the problem persists, contact Dell™ (see Contacting Dell™ on page 115).
Problem
No image appears on the
screen
Fn
F8
CRT/LCD
Possible Solution
• Ensure that the lens cap is removed and the
projector is turned on.
• Ensure that you have chosen the correct
input source on the INPUT SOURCE menu.
• Ensure the external graphics port is enabled.
If you are using a Dell™ laptop computer,
press (Fn+F8). For other
computers, see your respective
documentation. If images are not displayed
properly, please upgrade the video driver of
your computer. For Dell computers, see
support.dell.com.
• Ensure that all the cables are securely
connected. See "Connecting Your Projector"
on page 10.
• Ensure that the pins of the connectors are
not bent or broken.
• Ensure that the lamp is securely installed
(see "Changing the Lamp" on page 106).
• Use Test Pattern in the Projector Settings of
the Advanced Settings menu. Ensure that
the colors of the test pattern are correct.
Troubleshooting Your Projector 101