Tektronix Grass Valley 3000 User Manual
Page 47
2-11
Setting System Parameters
4.
Set the
END HORIZONTAL BLANKING
soft knob as desired.
This adjusts the end of H blanking over a range of -16.0 clocks
to +16.0 clocks. The default value is 0.0 clocks.
Pressing the
H-BLANKING DEFAULT
button resets the
horizontal blanking start and end values to Grass Valley
default settings (0.0 clocks).
5.
Set the
SUPERBLACK OUTPUT LEVEL
soft knob as desired.
This adjusts the super black output level over a range of -20.0
IRE to +7.5 IRE for U.S.A. NTSC, or -20.0 IRE to 0.0 IRE for the
Japanese NTSC.
6.
Set the
FIELD DOM
to
FIELD 1
,
FIELD 2
, or
NONE
. Refer to
7.
Select the desired matte generator chroma limiting algorithm
with the
MATTE GEN LIM
button. The selections are as follows:
XMITABL
— Prevents the total signal (luminance and
chrominance) from exceeding the NTSC transmission
standard.
VALID RGB
— Limits colors to those which generate red,
green, and blue values within the 0 to 100% range.
BOTH
— Selects a valid RGB color limiter that also
prevents the encoded signal envelope from exceeding
NTSC transmission level. (This is the system default
mode.)
NONE
— Turns off all algorithm methods for matte
generator limiting.
8.
The
SET CLOCK>
selection opens the Set Clock Menu, which
allows you to set the date and time for the system.