To Trigger On All Tv Line Sync Pulses - HP 54645A User's And Service Manual

To trigger on all TV line sync pulses

To quickly find maximum video levels, you could trigger on all TV line sync
pulses. When All Lines is selected as the TV trigger mode, the oscilloscope
will trigger on the first line that it finds when the acquisition starts.
Select the TV display, TV as the trigger mode, and the appropriate TV
1
standard as described in the previous section, "To autoscale on a
video signal."
Press
2
panel, then press the
Vertical Interval can be Blocked
The 21 lines in the Vertical Interval can be blocked from this display if the Vert
Rej On mode is selected. The three color sync bursts being displayed inside the
white bars are on vertical interval lines. These could be removed by selection of
Vert Rej On.
Figure 6-2
Triggering on All Lines
Using Option 005 Enhanced TV/Video Trigger (HP 54645A)
in the TRIGGER section of the front
Slope/Glitch
and
TV TV Menu softkeys. Press All Lines
To trigger on all TV line sync pulses
.
6-7