Video Products MONTEST-HD4K, Operation Manuals

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22. Diagonal 1
The Diagonal 1 pattern is a set of 3 diagonal colored lines (red, white
and blue) within a white square in the middle of the screen. This
pattern is used to check for distortion and alignment issues in the
center of the screen.
23. Diagonal 2
The Diagonal 2 pattern is 2 diagonal lines that travel from the corners
to the exact center of the display. This can be used to check for
alignment and geometry issues, particularly with projectors. The outer
border of the screen also has a white outline to verify that the full
image is being displayed.
24. Dot
The Dot pattern is a full field black & white pattern with a repeating
pattern of single-pixel (resolutions below 4K) or 4-pixel (at 4K) white
dots surrounded by single pixels of black. This pattern is ideal for testing
the signal path/display for bandwidth issues, interference, cross-talk or
scaling issues.