Grass Valley Kameleon HD Multi-Function Modules v.2.5.0 User Manual
Page 49
Kameleon HD—Instruction Manual
49
Initial Configuration Process Overview
KAM-HDD-PA System Config Web Pages
The System Config web pages for the various configurations on the
KAM-HDD-PA are shown in the following figures:
•
KAM-HDD-PA with HD 24 input type selected (no down conversion)
–
•
KAM-HDD-PA with an HD 59.94 or HD 50 input type selected –
•
KAM-HDD-PA with SD input type selected –
.
KAM-HDD-PA Output Timing
Since the KAM-HDD module does not have a Frame Sync function, it
requires some special timing considerations as described here. Refer also to
the discussion on
Kameleon HD Timing Considerations on page 20
There are two output timing source selections available on the
KAM-HDD-PA System Config web page,
Input
and
Frame Reference
.
•
When the
Input
choice is selected, the video output will be in time with
the input video, not in time with any external frame reference or any
other modules in the frame. This can result in a delay of up to two
pixels, so this mode should only be used when timing to an external ref-
erence is not a consideration.
•
When
Frame Reference
is selected, the module is actually in a line sync
mode since there is no frame sync capability on this model. Instead of
locking to an external frame reference, the output signal will lock to the
start of the next internal horizontal line. Using this setting will put the
timing of the output signal to within a very accurate and predictable
delay of approximately one nanosecond. However, it will not put this
output signal in time with an external reference.
•
In order for the KAM-HDD output to be in time with an external house
reference, the input signal must already be in time with the external ref-
erence when it is input to the module and
Frame Reference
must be
selected as the Output Timing source. If this condition is not met, an
image break can occur when switching sources.