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7700 MultiFrame Manual
7737CE Composite Encoder with Image Enhancement
6.6.2. Line 21 Processing
Video
Video Processing
Line 21 setup
Off,
On,
Blank
6.6.3. Colour Bars
Video
Video Processing
Colour bars
On,
Off
6.6.4. Setting the Composite Display Mode – Colour or Monochrome
Video
Video
Processing
Composite
display mode
Colour
B/W
7737CE-22
Closed captioning has been defined to NOT have a 7.5 IRE pedestal,
but it is placed on the first active line of video where there may be a
pedestal. The upstream closed captioning encoder should not have
generated a setup pedestal. When encoding composite video with
properly keyed captioning, a pedestal must not be generated.
This control, when set to Off, will not create the 7.5 IRE pedestal on
line 21. This is the default state for properly generated captioning.
When set to On, the 7.5 IRE pedestal will be generated on line 21.
Use this state when there are no input captions.
Note: The On condition will only take effect if the NTSC Setup
Pedestal control is set to On.
Blank is used to remove captioning from line 21.
Note: The captions are Blanked from the main, high quality, output
only. This will allow the monitoring of upstream captioning on the
monitoring output even when it is not desirable to have them passed
downstream on the program video.
Internally generated colour bars may be turned on to aid in monitor
calibration. To make sure that this control is not left on accidentally,
this parameter is not included in the preset management.
Warning: You can not change the output phasing when the colour bars
are turned on. Be careful when adjusting genlock references when this
is turned on.
If monochrome operation is desired on the composite output, colour may be
turned off with this control.
Revision 1.0
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