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4.4.
CONTROLLING THE GRID OBJECT
The grid object consists of two horizontal lines and two vertical lines that intersect the horizontal lines.
The lines are shaped to avoid sharp transitions in the video. Line width may be adjusted using the Line
Width attribute. The locations of the grid lines shown is the centre of the line.
4.4.1. Turning the Grid Object On and Off
To select the grid object press the GRID button. The grid object will blink momentarily (if the grid is On
and the obj blink item on the setup menu is enabled) and the GRID button will blink indicating that the
object is selected. The on screen display will be automatically turned on if the OSD TIMER item on the
SETUP menu is not set to Off and will indicate it the grid object is On or Off. To turn the grid On or Off,
press the GRID button when it is blinking. The grid object will be automatically de-selected after two
minutes of inactivity on the front panel or when another object is selected. The GRID button will be
illuminated brightly when it is On but not selected.
4.4.2. Centering the Grid on the Raster
When auto aspect ratio mode is On the grid object will always be centred on the raster. (The OSD will
show centred.) When auto aspect ratio mode is Off the SETUP menu item force centre controls whether
the grid will be centred or not (see section 4.2.6 for more information about auto aspect ratio mode).
When the force centre item is Off it is possible to independently position and size the grid, using the SIZE
and POS buttons and turning one of the shaft encoders as outlined in the following sections. (The OSD
will show not centred.)
4.4.2.1.
Controlling the Grid Colour
Press the COLOUR button to adjust the grid colour. The colour of the grid object can be adjusted in the
range of "0" through "14", in single digit increments, using either shaft encoder. The colours that will be
displayed for each value are shown in Table 4-2.
4.4.3. Controlling the Grid Size
Press the SIZE button, when the grid button is blinking, to adjust the grid size. The size of the grid can be
adjusted in one of two modes, depending on the setting of the Setup menu Force Centre item and the
Auto aspect ratio mode. The remote panel display will show the grid size while the SIZE button is brightly
illuminated. The On screen display will show the grid size as pixels and lines and as a percentage of its
reference aperture. The size adjust function will be deselected after 3 minutes of panel activity, or when
another button is pressed.
4.4.3.1.
Controlling the Grid Size (Objects centred or Aspect Ratio mode On)
Setup menu
Or
Auto Aspect ratio
When Force Centre is On or auto aspect ratio mode is On, the left shaft encoder is used to adjust the
height and the right shaft encoder is used to adjust the width about the centre of the raster when the SIZE
button is selected.
DESKTOP CONTROL PANEL OPERATION
HD9690 Series HDTV Graticule Generator Manual
Yes
Force centre
1:1
4:3
14:9
16:9
1.67
1.85
2.35
Revision 1.5
Page 4-13
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