InFocus LP770, Руководство пользователя

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36
M a i n t e n a n c e & T r o u b l e s h o o t i n g
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
•
Adjust the brightness. See “Brightness” on page 21
•
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.