Tektronix WFM7020 User Manual

Checking Chroma
/Luma Delay (Lightning Display)
10. Determine wher
e transitions intersect the
delay scales and derive the timing error
in nanoseconds, as deflected from the
center mark:
The center mar
k of the nine marks
spanning each green-magenta
transition is the zero error point.
Alignment to a mark towards black
means the col
or-difference signal
lags with respect to luma.
Alignment to a mark towards white
means the color-difference signal
leads the lu
ma signal.
The upper h
alf of the display
measures the Pb to Y timing; the
bottom half measures the Pr to Y
timing.
The + tic m
arks on the graticule indicate the following timing errors:
Tic mark SD timing error (ns) HD timing error (ns)
1080p 50,
59.94, 60, 3Gbps (3 Gb/s
and d ual link formats) timing error
(ns)
0marks 0 0 0
1st 20 2 1
2nd 40
5
2.5
3rd 74
1
13.5 6.75
4th 148
2
27 13.5
1
Luma sample
2
Chroma sample
Waveform Monitors Quick Start User Manual 43

Tektronix WFM7020 Specifications

General

Brand	Tektronix
Model	WFM7020
Category	Monitor
Language	English