Tektronix Camcorder 2200 User Manual

2-80

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 FRZE

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.

 and

determine the field, or fields, that are read out 

while the image is frozen. Either field may be selected, or both 
may be selected at the same time. (When unfrozen, the Field 
buttons have no effect.)

A full frame is always frozen, regardless of the state of these 
buttons. This method of storage allows the operator to decide 
between fields and frames after the image is frozen. 

When an image is read from the frame store in field mode, the 
“other” field is replicated from the selected field (indicated by the 
illuminated

 button), if 

 mode is selected in the 

Video Store menu. If 

 mode is selected in the menu, 

the “other” field is interpolated from the selected field.