Dell 3400MP Manuel Du Propriétaire page 23

Troubleshooting Your Projector
If you experience problems with your projector, see the following troubleshooting
tips. If the problem persists, contact Dell.
Problem
No image appears on the
screen
Possible Solution
• Ensure that the lens cap is removed and the
projector turned on.
• Ensure the external graphics port is enabled.
If you are using a Dell portable computer,
press . For other computers, see your
documentation.
• Ensure that all the cables are securely
connected. See "Connecting Your Projector"
on page 7."
• 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 26").
• Run Self-diagnostic test. See "Self-diagnostic
for Video" on page 26. Ensure that the colors
of the test pattern are correct.
Troubleshooting Your Projector
4
23