Tektronix Camcorder 2200 Manuel D’Utilisation

2-29

In normal operation, the switched preview output of the system 
may be set to monitor any of the M/E preview outputs, preview 
output, or preview primary bus.

The Auto Preview feature is activated by pressing one of the keyer 
delegate buttons (

,

,

, or

) for 1/2 

second or longer. When Auto Preview is active, the delegated key 
is inserted over the M/E preview output so that you may preview 
the key setup on the switched preview bus.

Holding down a keyer delegate button or turning the 

and/or 

controls prolongs the Auto Preview mode. The 

preview returns to normal after the delegate button is no longer 
held down and there is no activity on the 

or 

controls 

for a user-defined period of time. (User preferences are described 
in Section 2 of this manual.)

Pressing

 inhibits the key from being displayed 

wherever the mask is present. Pressing

 causes the 

key to be fully turned on where the mask is present, rather than 
suppressing the key. (Normally, the mask generator is used to 
define areas of the screen where the key is inhibited.) 

 is not intended for use with shaped video.

The

 and

 toggle buttons are 

illuminated when turned on, and can be turned on individually or 
together.

When either button is pressed, the masks subpanel is 
automatically delegated for adjusting the correct mask, if auto 
delegation is enabled.

The

 and

 buttons are inoperative for 

preset pattern keys. The background keyers (layered mode) do 
not have mask capabilities and the mask buttons are inoperative 
when the subpanel is delegated to a background keyer.