Specifications

To analyze video waveforms with Option 005
The combination of the TV trigger, delayed sweep, and automatic
measurements allow this oscilloscope to precisely analyze video waveforms.
There is no need for external clamping to obtain a stable trigger when you
are viewing unclamped video signals. This is because the TV sync separator
in the oscilloscope has an internal clamp circuit in the trigger path. Because
there is no clamp in the vertical path of the HP 54600–Series Oscilloscopes,
you will be able to observe any DC level shifts in the video on the oscilloscope
display. To eliminate this position shifting as the DC component of the video
changes, select AC coupling.
For this exercise, we connect the oscilloscope to the video output terminals
on a television. We set up the oscilloscope to view the second vertical
interval with delayed sweep windowed on the vertical interval test signals
(VITS). Then we make windowed measurements with the delayed sweep.
1
Connect a TV signal to channel 1, and select channel 1 as your trigger
source.
2
Press
Slope/Glitch
in the
TRIGGER
section of the front panel,
then press the
TV
and
TV Menu
softkeys.
3
Select the desired TV Standard, such as NTSC, PAL, or SECAM.
Use NTSC instead of PAL-M
To trigger on a PAL-M signal, use NTSC. The line and field rates are identical.
4
Press
Slope/Glitch
, then press the
Video Autoscale
softkey.
Using Option 005 Enhanced TV/Video Trigger (HP 54645A)
To analyze video waveforms with Option 005
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