Checking Chroma/Luma Delay (Lightning Display)
3.
Use the arrow keys and the
SEL
button
to set the menu in the steps that follow.
4.
Set the Display Type to
Lightning
.
5.
Set
BAR TARGETS
to match your input
signal.
6.
Select
Center Waveform
, and press
SEL
if you want to center the waveform.
7.
Press the
VECT
button to close the
pop-up menu.
8.
Determine where transitions intersect the
delay scales and derive the timing error
in nanoseconds, as de
fl
ected from the
center mark:
The center mark of the nine marks
spanning each green-magenta
transition is the zero error point.
Alignment to a mark towards black
means the color-difference signal
lags with respect to luma.
Alignment to a mark towards white
means the color-difference signal
leads the luma signal.
The upper half of the display
measures the Pb to Y timing; the
bottom half measures the Pr to Y
timing.
30
WFM4000 and WFM5000 Waveform Monitors User Manual
