Tektronix 2200 Manual Do Utilizador

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Section 4— Switcher Operations
Layered Mode Operations
The M/E Keyers may be used in a Layering Mode. In Layered 
mode, the A and B buses function as keyers rather than 
background buses.This mode is selectable on the M/E Mode 
Menu. To set up Layered Mode:
1.
Access the M/E Mode Menu, or double press the 
BKG B
 
button on the Transition Panel.
2.
Select 
M/E 1
.
3.
Select 
LAYERED
 Mode.
4.
Adjust the 
KEY OPACITY
 soft knobs to adjust the opacity of 
each layer as required. (These adjustments can help control 
excessive video levels that may occur in this mode.)
NOTE:  
To keep levels to acceptable limits, set the matte generator 
chroma limiting (
MATTE GEN LIM
) to 
BOTH
 in the Configuration/
System Parameters Menu.
5.
Verify Layered mode operation.
When this mode is active, the A and B buses can perform “simple 
keys.” That is, they can do linear, luminance, video, and external 
keys. They can also do Preset-Pattern keys.
The A and B buses cannot do Chroma Keys, Bordered Keys, or 
Mask Keys. However, they can do Split Keys.
They are treated like any other key, and can be individually 
transitioned, or tied together with other keys within a transition.