Teledyne 804A User Manual page 112

804 Series Video Test Generator – User Guide
Table 17-1: Test Patterns
Pattern Name
including picture centering, size, pincushion and linearity.
Command examples:
IMGL crosshtch
IMGU
IMGL linearity
IMGU
IMGL overscan
IMGU
Needle Pattern
Application: To detect whether scan velocity modulation is
enabled on display.
Command example:
IMGL needle
IMGU
Window/Raster Pattern
Applications:
Window1 - To calibrate display drive chromaticity.
Window2 - To calibrate display cutoff chromaticity.
Raster – To check color purity and display chrominance uniformity.
Command example:
IMGL window1
IMGU
IMGL window2
IMGU
IMGL raster
IMGU
Page 112
Variant
Linearity
Overscan
N/A
Window1
Raster
Options Range of Values
White on

Color
Black
Black on

White
N/A N/A
N/A N/A
-5

IRE Level
 -1
 +1
+5

 Off
IRE Label
On

R

Color
G

 B
C

M

 Y
W

-5

IRE Level
 -1
+1

+5

Off

IRE Label
On

Revision B3