12
In order to recall the default value of the H CENTER, you must enable manual
calibration by depressing the SELECT push-button until the the H CENTER LED
lights up. Finally, depress the +/- push-buttons simultaneously. This action will
erase any changes made to the the H CENTER parameter by the user.
3.7 Vertical Ancillary Data Masking
Any vertical ancillary data found on the CAV input signal lines listed in Table 3.2 may
be masked by the V ANC jumper. Perform the following steps in order to mask
vertical ancillary data or to allow it to pass through the ASD-111i.
1.
Locate the V ANC jumper situated on the left side of the ASD-111i (refer to figure
3.2 for location).
2.
To buffer through any vertical ancillary data set the jumper in the
ON
position. To
mask vertical ancillary data set the jumper in the
OFF
position.
Table 3.2
Masked video lines for 525 and 625 line formats
Masked
Lines
525 Line
format
10 to 19 and 273 to
281
625 Line
format
6 to 22 and 319 to
335
3.8 Sync Selection
The ASD-111i can be synchronized to external equipment using an external
reference signal or sync information on the G/Y CAV input. In order to select
between the two modes of synchronization, refer to the following steps.
1.
Locate the SYNC jumper (LK1) situated at the top right corner of the module
(refer to figure 3.2 for location).
2.
If you are planning to use the studio reference signal to synchronize the ASD-
111i, set the jumper in the
REF
position. Make sure the studio reference signal
is connected to the REF IN connector on the rear panel.
3.
In order to synchronize the ASD-111i to the G/Y CAV input signal set the jumper
to the
G
position. Make sure the G/Y input signal contains sync information.
3.9 Coring Selection
Coring reassigns any digital data points situated about the blanking level of the B/B-Y
and R/R-Y inputs, which do not have exact blanking levels, to true blanking levels.
This prevents any unwanted color modulation throughout the video signal during
reconstruction of the 4:2:2 output into NTSC or PAL.
