LC2000/LC2000-IQ/LC4000/LC4000-IQ
System Setup Menus
Issue 1 Rev 6
Page 40
© 2015 SAM
7.5 Genlock
The Genlock controls lock 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.
7.5.1 Source Ch 1 & 2
The Source Ch 1 & 2 menus enable you to select options for a genlock source.
•
Ref Lock:
Locks to the incoming reference.
•
Ch 1 Input:
Locks the output video to the channel 1 input.
•
Ch 2 Input:
Locks the output video to the channel 2 input.
•
Free Run:
Locks the output video to an internal reference clock.
7.5.2 Source Ch 3 & 4 (LC4000/LC4000-IQ Only)
•
Ref Lock:
Locks the output video to the incoming reference.
•
Ch 3 Input:
Locks the output video to the channel 3 input.
•
Ch 4 Input:
Locks the output video to the channel 4 input.
•
Free Run:
Locks the output video to an internal reference clock.
7.5.3 Reference Status
Reference Status shows the standard of the reference signal. If reference has been assigned
using the controls but an input signal is not detected on the assigned reference input, Current
reference standard shows “Invalid input”.
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.
