Tektronix Camcorder 2200 User Manual

2-98

The

 and

buttons select whether the Frame 

Store subpanel is assigned to the video channel or key channel. 
One of these buttons is always lit, and

 and

 

may be selected simultaneously.

Operations that can be independently set for video and key 
channels are as follows:

■

Freeze

■

Grab

■

Field 1 and Field 2

When

and

 are delegated simultaneously, the 

key channel settings are automatically aligned with the video 
channel settings.

The 

button provides a freeze/unfreeze function that 

toggles between states. Press once to freeze, press a second time to 
unfreeze. When enabled, this button stops data from being 
written to the frame store, resulting in a frozen image.

Pressing the

button updates the frame store with new input 

data and freezes the new data. If freeze is off (moving video is 
coming out of the frame store), pressing 

turns on freeze. 

Freeze can be turned off again by pressing the

button. If 

freeze is on and

 is pressed, the frame store is unfrozen for 

two fields and then frozen again. The

 button remains lit to 

indicate that freeze is still on. Since the

 GRAB

button initiates a 

single one-time action, it lights only while the button is pressed 
and for a short instant afterward.