HD5050
SECTION 4
HD5050070999 Version 1 Issue 4
For Software Version Z5 onwards
4.5
Blanking
Input blanking width may be adjusted with these
controls. Adjustments to the left, right, top and
bottom of the picture, may be made in steps of
input samples/lines.
Input blanking is used where the source video
applied is known to have pixels/lines at the edge of
the picture that are not required to be displayed.
The HD5050 will then blank any output data that
has been generated by that input data, regardless
of the display control settings.
Top
Adjusts the top line of blanking. 0 equals no
blanking on any output lines that would normally be
visible, 1 equals blank the first active line, etc.
Bottom
Adjusts the bottom line of blanking. 576 (PAL) or
486 (NTSC) equals no blanking on any output lines
that would normally be visible. 575 (PAL) or 485
(NTSC) equals blank the last active line, etc.
Left
Adjusts the left-hand edge of blanking. 0 equals no
blanking on any output pixels that would normally
be visible. 1 equals blank the first active pixel.
Right
Adjusts the right-hand edge of blanking. 720 equals
no blanking of any output pixels that would
normally be visible. 719 equals blank the last active
pixel.
Preset values will vary with the input standard.
Loss
Input Loss!
In the event of the loss of the selected input signal,
the unit may be set to respond as follows:
Freeze
The output will become a frozen
picture as set in the Utils/Config
menus.
Black
The output will go to black.
