IQUDC30/IQUDC31/IQUDC32/IQUDC33
Operation Using the RollCall Control Panel
Issue 1 Rev 4
Page 76
© 2016 SAM
5.11 Genlock
The Genlock screen provides controls for locking the output video clock to the genlock source
(input or reference) regardless of the video standard. If the genlock source and the video
output are the same frame rate, for example, 50 Hz or 59.94 Hz, Genlock locks the output to
the vertical phase of the genlock source, giving consistent and repeatable delay.
When attempting to pass non-PCM audio, ensure that Genlock is enabled. If using an
external reference, it must be clock-locked to the input video.
5.11.1 Source Ch 1 and Ch 2
One genlock circuit applies to channel 1 and channel 2 output video signals. The Source
menu enables you to select options for a genlock source.
•
Module Reference:
Locks the output video to the incoming rear-panel reference.
•
Chassis Reference A:
Locks the output video to incoming chassis reference A.
•
Chassis Reference B:
Locks the output video to incoming chassis reference B.
•
Ch1 input:
Locks the output video to the channel 1 input.
•
Ch2 input:
Locks the output video to the channel 2 input.
•
Free Run:
Locks the output video to an internal reference clock.
Note:
Lock to input wherever possible. Only lock to an external reference if necessary.
Note:
If Genlock is set to Free Run, non-PCM audio will always be corrupt.
Note:
The Source Ch2 and Timing Ch2 controls are only applicable to the IQUDC31 and
IQUDC33.
