Visioneer DP1011 - Manual (Page 30)

Xerox DP1011 User’s Guide 25
Maintenance
Problem: The image is flickering or otherwise unstable
Try one of these possible solutions:
• On the On-screen display, go to the Computer Mode page
and select Tracking. Change the tracking until the image
stabilizes.
• Change the color setting of your computer monitor.
Change the number of colors that your computer displays on its
monitor.
Problem: Image has vertical flickering bar.
Try one of these possible solutions:
• On the On-screen display, go to the Computer Mode page
and select Frequency. Change the frequency to match the
frequency of the video card in your computer.
• Reset the display mode of your graphic card to make it
compatible with the projector. See “Setting the Screen
Resolution” on page 28 for details.
Problem: Image is our of focus.
Try one of these possible solutions:
• Adjust the focus ring on the projector. Turn the focus ring
until the image comes into focus.
• Make sure the distance between the projector and the
screen is between 3.94 ft (1.2m) and 32.81 ft (10.0m). See
“Adjusting Projection Image Size” on page 11 for details.
Problem: The screen is outstretched when displaying
16:9 DVD.
The projector automatically detects 16:9 DVD and digitally adjusts
the image aspect ratio to full screen with a 4:3 default setting.
If the screen is still outstretched, try one of these possible
solutions:
• Reset your DVD player to display at a 4:3 aspect ratio. See
the DVD player user’s guide for the steps to adjust its aspect
ratio.
• On the projector’s On-screen display, go to the Computer/
Video Mode page and select Aspect ratio. Change the
aspect ratio to 4:3.