Infocus LP770 参照ガイド

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Problem: Image is too wide or narrow for screen
Adjust the zoom or projector placement.
Adjust the resolution of your video card if it’s greater than 
1280x1024.
Problem: Image is out of focus
Use the 
Focus/Zoom
 button to focus the image.
Make sure the projection screen is at least 5 feet (1.5 m) from 
the projector.
Check the projection lens to see if it needs cleaning.
Problem: Image and menus are reversed left to right
Rear projection mode is probably selected. Turn Image 
Reverse off in the Installation menu. The image should imme-
diately return to forward projection. See “Image Reverse” on 
page 24
Problem: the projector displays vertical lines, “bleeding” or 
spots
Check the projection lens to see if it needs cleaning.
Problem: no sound
Adjust volume.
Verify audio/input connections.
Adjust audio source.
Make sure Mute is not active.
Problem: Image is “noisy” or streaked
Try these steps in this order.
1
Deactivate the screen saver on your computer.
2
Adjust the synchronization and tracking manually to find an 
optimal setting. See “Fine Sync” on page 27 and “Tracking” on 
page 28
.
The problem could be with your computer’s video card. If 
possible, connect a different computer.