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Dukane 8039B Guida Utente

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LCD Projector—User Manual 
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3.  Ensure the projector-to-screen distance is within the range 
specified. 
4.  Check that the projector lens is clean. 
Problem: The image is wider at the top or bottom (trapezoid effect)  
1.  Position the projector so it is as perpendicular to the screen 
as possible.  
2.  Use the Keystone button on the remote control or projector 
to correct the problem. 
Problem: The image is reversed or upside down 
1.  Check the Projection setting on the Setup menu of the 
OSD. 
Problem: The image is streaked  
1.  Set the Frequency  and Tracking settings on the Setup 
menu of the OSD to the default settings. 
2.  To ensure the problem is not caused by connected PC’s 
video card, connect to another computer.  
Problem: The image is flat with no contrast  
1.  Adjust the Contrast setting on the Main menu of the OSD. 
Problem: The color of the projected image does not match the 
source image. 
1.  Adjust the Color Temp. and Gamma settings on the 
ColorMgr menu of the OSD. 
Lamp Problems 
Problem: There is no light from the projector  
1.  Check that the power cable is securely connected. 
2.  Ensure the power source is good by testing with another 
electrical device. 
3.  Restart the projector in the correct order and check that the 
power LED is green.