5.3.1. Adjusting The Timing Of The Output Video With Respect To The Genlock Input - evertz 7700 Manual

7700 MultiFrame Manual
7751SRG-HD HD-SDI Tri-Level Sync Generator

5.3.1. Adjusting the Timing of the Output Video with Respect to the Genlock Input

The toggle switch and pushbutton are used to set the timing of the output signals to the Genlock
Reference. Individual V and H phase adjustments allow you to control the timing of the outputs with
respect to the beginning of the Genlock reference frame. (0 time of line 1 field 1 for PAL references or 0
H H
time of line 4 field 1 for NTSC References). The 0 time of line 1 of output 1 is aligned to this point when
H
the factory default phasing is used.
The V phase adjust provides a coarse adjustment of timing and sets the line number of the output video
that will be aligned with the beginning of the reference frame. The H phase adjust provides a fine
adjustment of timing and sets the pixel number of the line on the output video set by the V parameter that
will be aligned with the beginning of the reference frame. If adjustments to the H parameter cause it to roll
through the pixel number at the start of a new line (the EAV) then the V parameter will change to the next
higher or lower line. The factory default is to align the EAV of Line 1 of the output video with the beginning
of the reference frame.
The three position, return to center toggle switch is used in conjunction with a momentary pushbutton to
adjust the phase of the outputs with respect to the genlock reference. Four LEDs located on the lower end
of the module (opposite the DIP switch) are used to indicate when the module is in phase adjust mode.
The Output 1 Phase adjust LED is located closest to the center of the module. The LED will be On or
flashing, indicating that you are adjusting the V or H phase of the specific output respectively.
To enter the phase adjust mode, press the pushbutton. The Output 1 Phase adjust LED will come on
solid, indicating that the toggle switch can be used to adjust the V phase of output 1. Pressing the toggle
switch up will advance the phase and pressing the toggle switch down will delay the phase. Press the
pushbutton again to adjust the horizontal phase of output 1. The Output 1 Phase adjust LED will come on
flashing, indicating that the toggle switch can be used to adjust the H phase of output 1. Pressing the
toggle switch up will advance the phase and pressing the toggle switch down will delay the phase. Press
the pushbutton again to adjust the phase of the next output, or to exit the phase adjust mode if only one
output can be phase adjusted.
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Revision 1.5.2