Quantum Data 881 User Manual

Page 71

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881/882 Video Test Generator User Guide (Rev A.22)

53

2. Choose the

VGA item by pressing the adjacent soft key. The interface is activated and

the port outputs the currently selected image and format. An asterisk is shown beside
the selected interface.

Alternatively, to select the interface through the command line interface, enter the
following commands:

XVSI

9

// Selects the VGA interface

ALLU

// Applies the interface setting to the generator

If you are using the 882D you select the DVI-A interface.

To verify the test set-up:

1. Press the

Source key to access the list of formats.

2. Choose a standard format (for example, DMT0660) by pressing the adjacent soft key.

Alternatively, you can load the format with the following command:

FMTL

DMT0660

FMTU

3. Press the

Content key to access the list of images.

4. Choose a suitable image (for example, ColorBar) by pressing the adjacent soft key.

Alternatively, you can load the image with the following command:

IMGL

ColorBar

IMGU

5. Verify that the image appears on the display under test.

To test the display:

1. Press the

Source key and select the first test format.

Alternatively, you can load the format with the following command:

FMTL

format_name

FMTU

2. Press the

Content key and select the first test image.

Alternatively, you can load the image with the following command:

IMGL

image_name

IMGU

3. Repeat steps 1 and 2 for all formats and test images. Use the following guidelines to

verify proper operation:

When testing geometry with the Hatch images (for example,

Hatch20

) look for

distortion with concave or convex lines near the periphery of the display. Look for
irregular spacing on the cross hatch patterns.

When testing photometry such as chrominance, use the

ColorBar

,

SMPTE133

, or

SMPTEbar

images. Look for missing bars which may indicate a dead or

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