3.2.3 Adjusting to Video Sources
Video adjustments are quite a bit like the controls on a television receiver.
Adjusting the picture
1.Select a video source in the Picture menu. When the VIM option is installed (Video Input Module) Margay has available
a.one composite video,
b.one
c.one component (YPbPr) input.
2.Press LEVEL on the remote.
These controls are also used for analog sources when you chose YPbPr Colorspace.
Now you have two choices.
•Adjust using any picture from the video source.
•Adjust using a standard color bar pattern from the source.
Adjusting with any picture
This procedure must be done after you adjust color balance (page 52).
1.Choose pictures that have blacks and whites rep- resented as well as a variety of colors.
2.Adjust Contrast, Brightness, Saturation and Hue on one Margay until it looks satisfactory.
3.Adjust all the other Margays in the wall so they have the same values for Contrast, Brightness, Saturation and Hue as the first Margay.
Adjusting with color bars
1.If possible, use a color bar pattern from the video source you will use for the program material. You cannot use the color bar from the Test Patterns menu.
2.In the Picture menu, check Blue Only. You should see only the alternate color bars, all of them blue.
3.Adjust Saturation to make the outer two color bars match. Match them in brightness; they will already match in color.
4.Adjust Hue to make the inner two color bars match.
5.Uncheck Blue Only
When a video source is selected, Auto Setup Options is not available. Adjustments must be made manually.
6.If the color bar pattern has a pluge, you can use it to adjust Brightness.
Pluge 
Adjust Brightness so you cannot 
see the different between these 
two marks,
but you can see the difference between these two marks.
50
