17
Balance
The Color Balance controls are labeled BALANCE on the front panel. RED and BLUE are primary functions. FILM
MD is a shift function below BLUE in italics. These controls are used to change the white balance of the processed
video signal on an installed TBC card. They can be used to correct for footage shot with improper white balance, or
used to add a color wash as a special effect.
RED
This button selects R-Y color balance control for the shaft encoder. Changing the R-Y color balance has the effect of
adding/subtracting red to the processed video signal. This adjustment is only valid for a TBC card.
BLUE
This button selects B-Y color balance control for the shaft encoder. Changing the B-Y color balance has the effect of
adding/subtracting blue to the processed video signal. This adjustment is only valid for a TBC card.
FILM MODE
This feature simulates the 3-2 pull down conversion technique from a 24 frame per second film standard to a 30 frame
per second video standard. This function is available for TBC IV cards only and is activated by holding in the BLUE
button for approximately one second. When this function is engaged, RED balance and Proc Amp functions are
available for adjustment. While in this mode, the BLUE and TAKE LEDs flash. To exit this mode, press the BLUE
button again.
Freeze Controls
TAKE and FRM/FLD are primary functions. STROBE is a shift function marked in italics under FRM/FLD.
TAKE
The TAKE button used to toggle between FREEZE and LIVE modes. Note that when the unit is in the FREEZE
FIELD mode and the freeze function is activated, the shaft encoder may be used to select one of the three fields
captured when the freeze function was actuated.
FRM/FLD
This button is used to select between FRAME (FRM) and FIELD (FLD) FREEZE modes. The FRAME mode is
normally used for static scenes (i.e. no motion) because it provides better vertical resolution. The FIELD mode is used
to freeze scenes that contain motion. When a TBC card is installed, the shaft encoder can be used to select field 1, field
2, or field 3.
STROBE FUNCTION
The strobe function is engaged by pressing and holding the freeze FRM/FLD button until the FRM LED begins to
flash. STROBE mode is then entered when the FREEZE TAKE button is selected. When the unit is in STROBE mode,
the shaft encoder may be used to select the desired strobe rate.
