Quantum Data 881, User Manual

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882 Video Test Instrument User Guide (Rev A.35) 47
characters which indicate the frame rate. The final character indicates the aperture, which
is used only if the aperture is not 1.33 (A). The following are examples of computer display
formats:
• VSC1275 for Viewsonic 1280 by 1024 at 75 Hz
• DMT0685 for Discrete Monitor Timing with 680 by 480 at 85 Hz
Viewing or modifying format parameters
You can use the Format image to view detailed information about formats in the 882.
You can also modify format parameters through the front panel, through the command line
interface, or through the Format Editor. These procedures are provided in “ Configuring
format parameters ” on page 153.
Selecting image
Once you have determined the format or formats appropriate for testing the display, you
will apply a series of images suitable for evaluating the display. Of primary importance is
determining what type of display you are testing (for example, CRT or digital flat panel
display). You must also determine if you are testing composite TV and use images
appropriate for these formats and video types.
Each image in the 882’s library is intended to test one or more attributes of a particular
display type and video type.
Rendering images
Use the following procedures to view primary images.
Once you have selected an image you can modify the image options if necessary. For
instructions on this refer to “ Viewing and modifying image options ” on page 219.
To select an image:
1. Identify the type of display (CRT or FPD) and the images that are used for testing this
type of display (see the table below).
2. Press the Content key. A list of images appears on the 882’s display as shown below.
Press the + and - keys to see all of the images.
Acer1 Acer2
Acer3 Acer4
Acer5 Acer6
Acer7 Acer8