AJA KONA 4 Installation & Operation Manual page 41

Default Output
This is where you select what the KONA card will output as a default when no application
has control of the board, such as when the Mac Finder or Windows Navigation Pane is
active. Since KONA can be controlled by software applications as well as its own control
panel, the output can change dynamically. When you select many video applications,
they will take control of the KONA inputs and outputs. However, when an application
that doesn't take control is active, these settings determine what KONA will output.
The following are the Default Output Choices and their meanings:
Black This selection directs the KONA card to output video black whenever an application isn't
controlling the card.
Input Pass through This selection directs KONA to route video from its selected input through the card for
processing and output. When this selection is chosen, all Primary/Secondary Format
selections are available for selection in controlling the output. This in effect makes the
KONA card a converter. No applications other than the AJA Control Panel need be open
to convert audio and video from one format to another. For example, if you have KONA
3G or LHi and need to dub an SD source tape needs to an HD tape, the signal can be
routed from the SD VTR to the KONA card configured for up-conversion in the AJA
Control Panel and then passed through to the HD VTR for recording. (Note: LHe Plus
performs down-conversion only.)
Test Pattern This selection directs the KONA card to output a choice of preset pattern when no other
application is using the KONA card. You can choose from:
Black, Color bars (75% or 100%), Ramp, Multiburst, Line Sweep, Multi Pattern, or Flat Field.
In addition to the preset test pattern choices, a "Load File... " selection at the bottom of the
menu allows you to load any standard RGB graphics file (.tif,.psd, etc.) into the frame
buffer for display.
While in Test Pattern mode, you can select RGB or YUV output via a pulldown menu.
NOTE: The graphic file will not be scaled to fit. If it's smaller than the current frame buffer format,
KONA will center it in the frame. If it's larger than the current frame buffer format, it will be
cropped on the right and bottom. Also some graphics formats and bit depths may not be
supported. Once a graphic file is loaded into the frame buffer it will be retained until it is
overwritten by another graphic or test pattern, or when power is turned off. Graphic file
names are only "remembered" in the menu until the AJA Control Panel application closed.
Hold Last Application This selection directs KONA to hold and output the last frame of video from the last
application to control KONA. This can be helpful when operating in an environment
where you're switching back and forth between multiple application windows.
Playback Timing
Use these controls to set Genlock and Timing adjustment.
Genlock Selects how KONA will synchronize program video:
Freerun: In this mode, KONA generates sync without an external reference source
Ref In: Directs KONA to use the Ref Video source for sync (usually an analog black burst
video signal)
Video In: Directs KONA to use whichever video input source has been selected in the
Inputs Screen for sync
Timing (Horiz and Vert): These two pull-downs allow output timing adjustment with reference to the Ref Video
source selected:
• Horizontal selects a number of pixels (clocks) to offset
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