7800 Multiframe Manual
7825DSK2-LG(-HD)(-3G) 3G/HD/SD Dual Downstream Keyer
RCP OPERATION
Revision 2.0
Page 5-11
5.6.2.
Setting the Video Output Timing With Respect To Reference
GENERAL
This menu item allows the user to set the reference type. The downstream
keyer can be referenced by the input video or by the source applied to the
GENLOCK
BNC.
Selecting GEN FRM 1 or GEN FRM 2 sets the frame genlock reference to
genlock (frame 1) or genlock (frame 2).
Frame genlock is where the genlock signal is connected to the 7800 frame
and run through the backplane to each board that is plugged in. It has the
same function as the genlock input, but it requires only one connector per
frame rather than one per card. There are two connectors on the 7800
frame for a choice of two genlock inputs. Therefore, the user can choose
either
In Video
(use input video signal's frame sync),
In Gen Backp
(backplate), Gen Frm
1
(frame, 1) or Gen Frm
2
(frame, 2).
Reference Timing
Type
In Video
In Gen Backp
Gen Frm 2
Gen Frm 1
!
The H and V Phase Offset adjustment is a REAL TIME ADJUSTMENT and will
affect the output video timing immediately. These settings should not be
adjusted when the output video is in the broadcast chain.
GENERAL
This menu item allows you to set the horizontal timing of the output video
with respect to the genlock reference input. Setting this control to 0 keeps
the output video in time with the genlock reference.
Increasing the value will delay the output video in one-sample increments.
In order to advance the horizontal timing of the output video with respect to
the genlock video, set the control to the maximum number of samples per
line for the output video standard minus the number of samples that you
wish to advance the output video. (E.g. for 1080i/59.94 output video the
total number of samples per line is 2200, so to advance the output video 5
samples set the value to 2195.)
Reference Timing
H: 0 to max samples
GENERAL
This menu item allows you to set the vertical timing of the output video with
respect to the genlock reference input. Setting this control to 0 keeps the
output video in time with the genlock reference.
Increasing the value will delay the output video in one-line increments. In
order to advance the vertical timing of the output video with respect to the
genlock video, set the control to the maximum number of samples per line
for the output video standard minus the number of samples that you wish
to advance the output video. (E.g. for 1080i/59.94 output video the total
number of samples per line is 2200, so to advance the output video 5
samples set the value to 2195.)
Reference Timing
V: 0 to max lines
Содержание 7825DSK2-LG-3G
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