
LDP-8242 User Manual (Iss. 03)
Operating Instructions • 3–17
Framesync
Provides video frame sync/delay control and output control/loss of
program video failover selection controls.
Framesync Enable
Selects Frame Sync functions from the choices shown to the left and
described below.
•
Free Run
: Output video is locked to the card’s internal clock.
Output video is not locked to external reference.
•
Lock to Reference
: Output video is locked to external reference
received on the frame reference bus. Default uses Ext Ref 1 frame
bus, with failover to Ext Ref 2 in the event valid reference signal is
not present on Ext Ref 1. (External reference signals Reference 1
and Reference 2 are distributed to the card and other cards via an
8320 frame bus.)
Note
: If valid reference is not received, the
indication appears in the Card Info status
portion of DashBoard™, indicating invalid frame sync reference
error.
•
Lock to Input
: Uses the program video input video signal as the
reference standard.
Note
: If Lock to Input is used for framesync, any timing instability on
the input video will result in corresponding instability on the output
video.
Initial Startup Format Select
Selects a synthesized frame sync format/rate to be invoked (from the
choices shown to the left) in the time preceding stable lock to external
reference.
Set this control to that of the intended external reference to help ensure
smoother frame sync locking.
Program Video Output Mode Select
Provides a convenient location to select between card program video
output and other technical outputs from the choices shown to the left and
described below.
•
Input Video
– card outputs input program video (or loss of signal
choices described below).
•
Flat Field (Black)
– card outputs black flat field.
•
Freeze
– card outputs last frame having valid SAV and EAV codes.
•
Test
Pattern
– card outputs standard technical test pattern (pattern
is selected using the Pattern drop-down described below).
Loss of Input Signal Selection
In the event of program input video Loss of Signal (LOS), determines
action to be taken as follows:
•
Disable Outputs
: Disable program video SDI outputs.
•
Flat Field (Black)
– go to black flat field on program video output.
•
Freeze
– go to last frame having valid SAV and EAV codes on
program video output.
•
Test Pattern
– go to standard technical test pattern on program
video output (pattern is selected using the Pattern drop-down
described below).
Содержание LDP-8242
Страница 1: ...LDP 8242 Multi Definition Loudness Processor User Manual ...
Страница 26: ...1 18 Introduction LDP 8242 User Manual Iss 03 ...
Страница 94: ...4 4 Specifications LDP 8242 User Manual Iss 03 ...
Страница 98: ...Notes ...
Страница 99: ...Notes ...