Timing a Studio
5.
Press
MAIN
to display the Main pop-up
menu and select the Timing display for
the tile selected in step 1.
6.
If only one circle is displayed, adjust
the timing offset of the black generator
to match the timing to the external
reference. Adjust for a perfect
coincidence of the circle around the
reference target (circle turns green at
coincidence) and null values of the
vertical and horizontal timing readouts.
7.
If multiple circles are displayed, the
timing is complex, and you must choose
which circle you want. The measurement
that is closest to zero offset is displayed
with emphasis and appears in the
readouts.
NOTE.
For additional information on
complex timing displays, see the previous
discussion for information on this display and
its elements. (See page 73, Timing Displays
for Simple Versus Complex Timing.)
8.
Repeat step 6 or 7 for any other signals.
NOTE.
As you adjust timing, the circle representing the input timing may jump occasionally. This is because the color frame
detection circuit can be temporarily disrupted as the signal shifts. The jump is often a multiple of the
fi
eld time. The circle
will settle back to the correct location in a second or so.
Usage Notes
The resolution of the timing display for Composite and SD signals is one 27 MHz clock cycle or 37 ns. For HD signals, it
is one clock at 74.25 MHz, which equates to about 13.5 ns. To get the greater accuracy needed for a composite
signal, first use the timing display to get close, then use a vector display for the final burst phase alignment. Since the
waveform monitor can display both the timing display and a vector display simultaneously (each in its own tile), this
process can still be easy and quick.
98
Quick Start User Manual
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