Crystal Vision
Card-edge control
17
26/01/06
Removing NTSC setup (pedestal)
Before conversion to a SDI signal the 7.5% IRE setup (pedestal) applied to NTSC-M
waveform can be removed.
DIL 5
Function
UP
M
+7.5% IRE setup removed
DOWN
J
No setup removal
Vertical Blanking interval information
The information in the vertical blanking period of the analogue input video picture may
be blanked or passed unaltered. DIL switch 6 sets whether the VBI signal is passed or
blanked.
DIL 6
Function
UP
vbi
Sets analogue video picture VBI content to be blanked
DOWN
bln
Sets analogue video picture VBI content to be passed to the output
Selecting the operating Mode
There are two modes of operation, synchronisation and delay line. In Synchronisation
Mode the unit takes its timing from the analogue external reference. In Delay Mode,
timing is derived only from the analogue input video.
DIL 7
Function
UP
syc
Synchronisation mode
DOWN
del
Delay mode
