Operation, cont’d
Front panel security lockout
The front panel security lockout limits the operation of the IN1508 from the front panel. When the switcher’s front panel is locked out, all of the front panel image adjustment functions are disabled. You can still select inputs.
To toggle executive mode on or off, simultaneously press and hold the Color/Tint and Center buttons (figure
No
menu
display
Simultaneously press and hold both buttons.
COL/
CENTER TINT
Front Panel Locked
Timeout
2 seconds.
Release both buttons.
Figure 3-21 — Toggle front panel lockout on or off
Optimizing the Video
Setting up a DVD source
To get the best results when using a DVD as a video source, Extron recommends that the DVD player itself be set up to output an aspect ratio of 16:9 and not 4:3. Because all DVDs are mastered as 16:9, having them set up for anything else causes the player to internally scale and compress the signal. The DVD player’s scaling and compression defeats the advantage of having 3:2 pulldown detection in the IN1508.
All sizing adjustments to correct the aspect ratio should be done using the IN1508.
To change the output aspect ratio of most DVD players:
1.Enter the DVD player’s setup or action menu while the disc is stopped.
2.Select the 16:9 aspect ratio.
Resolution and refresh rates
Resolution and refresh rate are probably the most crucial variables for optimum image quality. Every display has an optimal or native resolution and an optimal refresh rate. These vary, depending on:
•The type of display technology
•Whether the display has a fixed number of pixels (a native resolution)
•The size of the pixels
•The size of the display or screen
•The distance of the viewer from the screen
For best results, set the switcher’s output resolution and refresh rate to match the capabilities of your display.
