HP 54600A - Page 53

Figure 28
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Operating Your Oscilloscope
To aaaly1e video wavefor•s
10 Change the time base to 2.00 ms/div, then center the signal on
the display with the delay knob (delay about 9.24 ms).
I I I I I I I I I I 0 I 1 I I I I I I I I I
I I I I 0 o I I I I I I I I I 1 I I o 1 I o 1 0 1 1 I 1 o 1 o I 1 o 1 1 I o 1 o o I o o o 1
Display of a full field
TV trigger operatlag lllats
The color burst never really changes phase, it just looks doubled triggered because
its frequency is an odd multiple of one haH the line frequency.
When looking at live video (usually a field), use peak detect to improve the
appearance of the display.
When making cursor measurements, use Autostore since you are usually looking
for pulse flatness and extremes.
When using line trigger, use minimum holdoff to display all the lines. Due to the
relationship between the horizontal and vertical sync frequencies the display looks
like it is untriggered, but it is very useful for lV waveform analysis and adjustment
because all of the lines are displayed.
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