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When the brightness and contrast are adjusted correctly, you should be able to
see the 1 IRE and 2 IRE above black bars on the black background and the 1
IRE and 2 IRE below white bars should be visible on the white background.
When the brightness is adjusted correctly, black objects should appear ‘black’
with the details still intact and lighter areas should be ‘light’, not gray, with the
details still intact. When the contrast is adjusted correctly, white objects will
appear ‘white’ with the details still intact. Because the contrast settings can
affect brightness settings we recommend that you check the brightness setting
after making this adjustment.
Checker board
When the Checkerboard test pattern is displayed correctly, close up you should
be able to see a 1- pixel checkerboard and at proper viewing distance the
image should appear as an even gray. If your display is CRT-based you will not
see this checkerboard, but your screen should be an even gray. When this test
pattern is displayed incorrectly, the resulting image does not look like a fine
checkerboard and may have irregular patterns. If this is the case then the
chosen output resolution may not be the native resolution of your display or
your display may scale all input signals even if the input resolution is already at
native resolution. Check to make sure that the output resolution selected on the
DMS-AV is the correct output resolution for your display.
Vertical Lines
The ‘Vertical Lines’ test pattern should appear as one pixel wide black and
white columns. If you see any irregular pattern(s) in the image then you know
that the display is scaling the signal horizontally.
Horizontal Lines
The ‘Horizontal Lines’ test pattern should appear as one pixel tall black and
white rows. If you see any irregular pattern(s) in the image then you know that
the display is scaling the signal vertically.
Judder
The ‘Judder’ test pattern displays a bar that bounces back and forth at the
chosen output resolution. When this test pattern is displayed correctly, the bar
will move smoothly across the screen and bounce from side to side. When this
pattern is displayed incorrectly, this bar may ‘tear’ as it moves across the screen.
DMS-AV H
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