Miranda FRS-111i, Manual To Installation And Operation

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3.4 Timing Adjustments
When the FRS-111i operates without a reference signal, it operates in Frame
Delay/Frame Buffer mode: the timing adjustment sets the processing delay between
the input signal and the output signal. However, when a valid reference signal is
installed, the FRS-111i is in Frame Synchronizer mode: the timing adjustment sets
the processing delay between the reference signal and the output signal. When the
vertical and the horizontal timing is set to zero (0), the output is vertically and
horizontally phased with the reference. Note that when the reference is not present
and the FRS-111i is locked to the input, a zero phasing (vertical timing and horizontal
timing set to 0) is not possible because of the minimum processing delay of the card.
Timing has several levels of adjustment which include vertical timing (video lines),
horizontal timing (
µ
s), and frame phasing (frames).
3.4.1 Frame Phasing
Frame phasing allows a super coarse adjustment in frame increments, from 0 to 1
frames. When a reference is present (
Frame Sync mode), the frame adjustment
allows additional frames to be added after/before the frame sync.
When there is no reference and the phasing is done on the video, the frame phasing
adjustment adds a delay in frame increments between the input and output video
(
Frame Delay/Frame Buffer mode). A zero phasing (H & V) is not possible because
of the processing delay of the card.
To adjust frame phasing perform the steps below:
1. Press SELECT to enter the menu. TIMG is displayed.
2. Press SELECT to enter the Timing menu. FRAM is displayed.
3. Press SELECT to enable the frame phasing menu. The current value is
displayed.
4. Use the “+” or “–“ push-button to set the required frame phasing value. Press the
“+“ and “–“ push-buttons simultaneously to set frame phasing to default.
5. Press SELECT to store the new frame phasing value.
6. Press ESC to return to
TIMG .
7. To return to normal mode, press ESC.
3.4.2 Vertical Timing Delay
The vertical timing delay adjustment is made in increments of 1 video line up to 524
lines in 525-lines format and 624 lines in 625-lines format. Follow these steps in
order to adjust vertical timing delay:
1. Press SELECT to enter the menu. TIMG is displayed.
2. Press SELECT to enter the Timing menu. FRAM is displayed. Press “+” until
VERT is displayed.
3. Press SELECT to enable the vertical timing delay menu. The current timing delay
in video lines is displayed.
4. Use the “+” or “–“ push-button to set the required vertical timing delay. Press the
“+“ and “–“ push-buttons simultaneously to set vertical timing delay to 0 video
lines.
5. Press SELECT to store the new vertical timing delay.