Tektronix Grass Valley 3000 - Manual (Page 46)

2-10
Section 2 — Startup & Configuration
Setting System Parameters
The System Parameters Menu allows you to set the video
standard (internal black level), to select the matte generator
chroma limiting algorithm, to adjust horizontal blanking and the
super black output level, and to set the system clock.
1. Press the SYSTEM PARAMS> soft button below the
Configuration Menu display to bring up the System
Parameters Menu:
2. With the INTERNAL BLACK LVL soft button, select either 7.5
IRE or 0 IRE. This sets the video standard (internal black level)
for operation on the NTSC standard used in the U.S.A. (Black
= 7.5 IRE) or the NTSC standard used in Japan (Black = 0 IRE).
3. Set the START HORIZONTAL BLANKING soft knob as desired.
This adjusts the start of H blanking over a range of -16.0 clocks
to +16.0 clocks. The default value is 0.0 clocks.
SYSTEM PARAMETERS MENU
FIELD 2
config / system params
FIELD
DOM
INTERNAL
BLACK LVL
MATTE
GEN LIM
H-BLANKING
DEFAULT
START HORIZONTAL BLANKING
= 0.0 clocks
END HORIZONTAL BLANKING
= 0.0 clocks
SET
CLOCK >
NONE 0 IRE
7.5 IRE
FIELD 1
SUPERBLACK OUTPUT
= -10.0 IRE
VALID RGB
NONE
XMITABLE
BOTH