Fluke 54200, User Manual

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How to Use the Instrument
Description and Applications of the Test Patterns
4
4-43
Figure 4-64. Circle, Aspect Ratio 4:3 Figure 4-65. Circle, Aspect Ratio 16:9
Applications:
Circle on a black background is suited for checking the overall linearity and geometry of
the screen of a monitor or TV. The white circle on black is useful for checking
reflections. In 16:9 Aspect ratio format small circles are present in the corners of the
screen to check and adjust the geometric distortion of the complete 16:9 screen.
Center Cross with Border Castellations
Figure 4-66. Center Cross, Aspect Ratio 4:3 Figure 4-67. Center Cross, Aspect Ratio 16:9
Description:
This B/W pattern with color burst offers a white or black center cross with black/white
or white/black (respectively) border castellations on a selectable background. The center
cross is black on a white background but changes to white when a different background
color is selected, for example, combination with purity. 2% or 3% overscan indications
are selectable. The primary color signal levels are 100/0/75/0 for 625 line systems and
100/7.7/75/7.5 for 525 line systems. Further details and timing of the pattern are shown
below.
Figure 4-68. Center Cross, Timing
Line a
Line b
Line c
Line d
Line e
Line a
Line b
Line c
Line d
Line e