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HD9690 Series HDTV Graticule Generator Manual
DESKTOP CONTROL PANEL OPERATION
Revision 1.5
Page 4-15
4.5.1. Turning the Mask Object On and Off
To select the
mask
object press the
MASK
button. The
mask
object will blink momentarily (if the
mask
is
On and the
obj blink
item on the
setup
menu is enabled) and the
MASK
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
mask
object is On or Off. To turn the
mask
On or Off,
press the
MASK
button when it is blinking. The
mask
object will be automatically de-selected after two
minutes of inactivity on the front panel or when another object is selected. The
MASK
button will be
illuminated brightly when it is On but not selected.
4.5.2. Controlling the Aspect Ratio of the Mask
Auto Aspect ratio Off
1:1
4:3
14:9
16:9
1.67
1.85
2.35
The
AUTO ASPECT
button is used to control the aspect ratio of the
mask,
the
boxes
and the
ellipse
objects, and whether they are centred or not. The auto aspect ratio mode forces the
mask
object to be
centred and its size to follow one of the following fixed aspect ratios
: 1:1, 4:3(1.33), 14:9 (1.55), 16:9
(1.78), 1.67, 1.85:1, 2.35:1
. (The on screen display will show the aspect ratio as
fixed aspect
and the
centering as
centred
) When the
auto aspect ratio
mode is set to
Off
the
mask’s
dimensions are not
constrained to follow a fixed aspect ratio and the
setup menu force centre
item determines whether they
will be forced to the centre of the raster. (The on screen display will show the aspect ratio as
user aspect
and the centering as
not centred
) See section 4.3.1 for more information about
auto aspect ratio
mode.
4.5.2.1.
Centering the Mask on the Raster
When
auto aspect ratio mode
is On the
mask
object will always be centred on the raster. (The on screen
display will show the object centering as
centred
) When
auto aspect ratio
mode is Off the
SETUP
menu
item
force centre
controls whether the
mask
will be centred or not (see section 4.2.6.) When the
force
centre
item is Off it is possible to independently position and size the
mask
, using the
SIZE
and
POS
buttons and turning one of the shaft encoders as outlined in the following sections. (The on screen display
will show the centering as
not centred
)
4.5.2.2.
Controlling the Mask Colour
Press the
COLOUR
button to adjust the
mask
colour. The colour of the
mask
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.
4.5.3. Controlling the Mask Size
Press the
SIZE
button, when the
mask
button is blinking, to adjust the
mask
size. The size of the
mask
can be adjusted in one of three 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
mask
size while the
SIZE
button
is brightly illuminated. The On screen display will show the
mask
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.
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