Extron Electronics IN1700 - Manual (Page 15)

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IN1700 Operation Manual - Preliminary 06/23/00 © 2000 - INLINE, INC.
screen that cannot be changed (i.e. viewing a document or spreadsheet with small text) use the
ZOOM Button to enhance visibility.
Don’t Go Near the Edge - Remember that conventional
video monitors, since they overscan by at least 5% to
Entire Video Image
10%, usually don’t display the entire picture from edge to
edge. This means that anything located at the extreme
edge of the screen may be cut off. Since the amount of
overscan varies from monitor to monitor, it is generally
best to avoid the outer edges of the screen when placing
important headlines, logos and other critical items. Be
sure to view the display on your conventional monitor
before the presentation to ensure that you are staying
Safe
Title
Area
within the safe title area.
Avoid Thin Lines and Gray Fill Patterns Made of Thin Lines - When making on-screen
graphics, create lines that are at least two pixels thick. Lines and patterns containing single pixels
tend to create flicker problems. You may also lessen or avoid the problem if you use lines that
are an even number of pixels wide (2, 4, 6, 8 etc.).
Experiment With the Six Flicker Settings - The flicker filter has six settings, each step
affecting both the flicker and the sharpness of the image. The “B” level setting is best for most
applications but you may need to change to a different setting depending on the type of material
displayed on the screen. We recommend that you experiment with the flicker / sharpness settings
(before your presentation) to find the best one for each application and screen.
More Tips for Flicker Reduction:
•
Try setting your computer to a higher refresh rate (i.e. 72 Hz instead of 60 Hz).
•
Set your computer to 16 bit or 24 bit mode (65,000 colors or 16.7 million colors). The
High Color and True Color modes feature a wider color palette, which creates color
directly. Sixteen color and 256 color modes use dithering patterns to create many colors,
which may cause flicker. An added benefit of the high color modes is the elimination of
palette snaps and flashes.
•
Reduce the brightness and contrast control on your video display.
•
Try different room lighting. You may wish to turn off fluorescent lights as they may
interact with the video display, causing more flicker.
•
Use the IN1700 overscan mode. The flicker reduction filter is more effective in this setting.
•
Use the ARROW Buttons to move the picture up / down or side-to-side. Some screen
positions are more solid that others.
Set the IN1700 to Overscan - The IN1700 provides the best quality image when in the overscan
mode. If part of your picture is off the screen while showing your presentation in overscan mode,
you may use the ARROW Buttons on the front panel to move the image around as needed.
Hint: For best results, avoid using the areas along the outer edge of the screen when you create
your presentation.
Use Good Quality Tape - If you are recording the output of your scan converter use a good
quality videotape and record in the SP mode. Standard VHS machines only provide about 220
lines of resolution. While this is adequate for recording on-screen slide presentations and
multimedia shows with large type, it generally does not provide enough resolution to record