Extron electronic ISS 408, ISS 108 manual Setting up a DVD source, Controls to position the image

1.	If you are using a digital display, such as an LCD or DLP projector, use the
	alternating pixels test pattern as a reference to adjust the phase and dot clock
	on the display devices. Proceed to step 3.
2.	If you are using a CRT display, use the cross hatch test pattern as a reference
	to converge the display.
3.	Set the ISS to output either the crop test pattern for 4:3 video or the
	appropriate aspect ratio test pattern. Use the display’s positioning controls to
	position the image so that you can see all sides of the test pattern on the
	display.
		For the best results of this optimizing procedure, do not use the ISS’s center
		controls to position the image.
4.	Select an input. Use the ISS’s size and center functions to fill the crop or
	aspect ratio test pattern.
		If the input source is a DVD, set the DVD player to output a 16:9 aspect ratio
		before sizing the image using the ISS’s size function to correct the aspect ratio.
		See Setting up a DVD source below.
		When sizing and centering a letterbox movie video source, increasing the
		brightness on the ISS makes it easier to see the top and bottom of the active
		video.
5.	If the input source is RGB, use the horizontal and vertical detail adjustments
	to increase the sharpness.
6.	For S-video and composite video inputs, set the ISS to output blue-only
	video and to output the Color Bars test pattern. Using the blue Color Bars as
	a reference, use the ISS’s color and tint controls to adjust the video’s color and
	tint.
7.	For RGB video inputs, set brightness and contrast levels. See Picture
	adjustments, earlier in this chapter.
8.	Save this setting into one of the user memories using the User Presets menu.

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 ISS.

All sizing adjustments to correct aspect ratio should be done using the ISS.

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.

Integration Seamless Switcher • Operation 3-21