Dell 1550 Projector 1650 - User Guide - Page 19

3 Troubleshooting Troubleshooting Tips 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 F8 CRT/LCD Fn Possible Solution • 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 www.dell.com/support. • Ensure that all the cables are securely connected. See "Adjusting Projector Image" on page 12. • 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 24). • Use the Test Pattern in the Projector Settings of the Advanced Settings menu. Ensure that the colors of the test pattern are correct. Troubleshooting 19