Chroma Coring
Specifies whether or not to disable chroma coring of the video signal.
Valid Settings: Normal, Disable
Default Setting: Normal
Chroma coring should only be disabled when multiple generational passes of the
same video signal are being processed through the unit. Disabling chroma coring
reduces “chroma contamination” that can occur after four or five recursive passes
(Analog -Digital - Analog - Digital, etc.).
Note that disabling chroma coring may have a slight effect on chroma gain, as units
are factory-calibrated with the Chroma Coring option in the Normal setting.
VITS/Blanking Fld1
Specifies blanking and Vertical Interval Test Signal insertion options for field 1 of the
video.
In 525-line mode (NTSC), the first 9 lines of field 1 are always blanked. The Narrow
Blanking option sets lines 10 through 20 of field 1 to Bypass, so they are unchanged
from the input. Wide Blanking sets lines 10 through 20 of field 1 to Blank, so they
are blanked. Enable Source ID inserts the text specified in the Source ID option into
lines 10 through 20.
In 625-line mode (PAL), the first 5 lines of field 1 are always blanked. The Narrow
Blanking option sets lines 6 through 22 of field 1 to Bypass, so they are unchanged
from the input. Wide Blanking sets lines 6 through 22 of field 1 to Blank, so they are
blanked. Enable Source ID inserts the text specified in the Source ID option into
lines 6 through 22.
These options can be overriden on a line-by line basis with the remaining settings of
this option. Each of lines 10 through 22 can be individually configured. Each of lines
10 through 20 can be set to:
• Blank: the line will be blanked
• Bypass: the line will be sampled from the input video, then passed through a
notch filter before output. This mode assumes that color information may be
present in the line.
• Data: the line will be sampled from the input video, and output without any
processing. This mode should be used for high-speed signals that may be
corrupted by filtering.
• Source ID: the text specified in the Source ID option is inserted
• a Vertical Interval Test Signal
In 625-line mode, lines 21and 22 can each be set to any of the above values. In 525-
line mode, lines 21 and 22 can each be set to either Bypass or Blank.
Related Setting: Source ID, VITS/Blanking Fld2
VITS/Blanking Fld2
Specifies blanking and Vertical Interval Test Signal insertion options for field 2 of the
video.
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DPS-475/575 Service Manual
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