GRASS VALLEY 1200, Installation And Service

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Section 2 Ñ Installation
Define Inputs Menu
From the Configuration menu select
[INPUTS>]
to display the Define Inputs
menu (Figure 2-15). This menu is typically configured during switcher
installation. However, you may want to change configurations for different
types of production sessions. The Inputs menu allows you to do the
following:
■
Give each physical input a descriptive name which is carried forward
into several other menu levels.
■
Attach characteristics to each physical input, such as bit resolution of
the source, identification of the signal type, and association of key
cutters with fills. The signal type tells the switcher whether the input is
to be treated as video, shaped video, key, or key with depth.
■
Designate a video/key pair as the return inputs in systems where an
effects send and return will be used. This information is needed by the
switcher for automatic switching of the effects loop.
■
Select 4:2:2 chroma key inputs or full-bandwidth 4:4:4 chroma key
inputs. Two physical inputs are needed to accommodate a full-
bandwidth chroma key signal. The Inputs/4:4:4 CK Sources sub-menu
designates those two physical inputs.
■
Associate a four-character legend with each physical input. These
legends appear in the Inputs menus and also in the LED displays that
may be installed between the Key and Aux crosspoint pushbutton
rows.
Define Inputs
Using the Inputs menu, define each input as follows:
1. Select a Physical Input using the
(PHYSICAL INPUT)
soft knob. The
physical input numbers are the same as the jack numbers on the back
of the electronics frame.
2. Assign an Auto Select key input to a video fill input using the
(AUTO SEL
KEY SRC)
soft knob. Auto Select provides automatic selection of the
associated key input when you select the fill input on the Key
crosspoint bus.
3. Enter a Signal Name by pressing the
[CLEAR NAME]
soft button, typing a
name on the keyboard, and pressing the
[ENTER NAME]
. soft button.
4. Using the
[BITS]
soft button, identify the input as either an 8 or 10 bit
signal.
5. Using the
[TYPE SELECT]
soft button, identify the input type:
DEPTH
(depth key signal from a digital picture manipulator),
KEY
,
SHAPED
(video shaped by a key), or
VIDEO
(unshaped).