Grass Valley M-2100 - Manual (Page 57)

MMCP Installation/Operation Manual 2-33
Keyer Controls and Operation
Setting Matte Configurations
The following matte settings are configured at the MMCP:
■ Matte Crosspoints,
■ Transition Matte, and
■ LOS (loss of signal) Matte.
Configuring Matte Crosspoints
A crosspoint must first be configured to be a matte source type crosspoint
in Configuration Manager to allow the matte values to be set with the matte
controls. If it has been defined as a matte crosspoint, the matte definition
for that crosspoint can be set from the MMCP in the following way:
1. The MMCP must be assigned to a channel. The current configuration
must have crosspoint(s) configured for mattes.
2. Press and hold the PST button corresponding to the configured matte-
crosspoint. The matte output of this crosspoint can be viewed on the
Preset monitor (default is black).
PST tallies high.
3. Continue holding the PST button. Use the Brightness , Hue , and Sat knobs
in the Keyer Control subpanel to adjust the matte (while holding down
the
Mode/Function button. There is no effect on any of the keys.
Note PGM buttons do not have this functionality.
Configuring the Transition Matte
A transition matte is where the Program video is held between transitions,
that is, between where the old video is transitioning out, and the new video
is transitioning in. The
PreRoll/Transition button is used to setup the Transi-
tion Matte, using the following procedure.
1. Select a Fade-type of transition.
2. Press and hold the PreRoll/Transition button. The transition will proceed
to Transition Matte and be held there as long as the PreRoll/Transition
button is held down.
3. While viewing the Program monitor, adjust the Transition Matte with
the Keyer subpanel
Brightness , Hue , and Sat potentiometers (while
holding down the Mode/Function button).
Note Transition Matte values are reported as read-only values in the General
Parameters form in Configuration Manager.