Fluke 54200, User Manual

Page: 127 / 386

How to Use the Instrument
Description and Applications of the Test Patterns
4
4-61
Table 4-7. Color Temperature Adjustment (continuous)
Color Temperature Adjustment 625 Line System 525 Line System
CTA_Size Medium (for 28" picture tubes)
•
Width
•
Height per frame
17%
of active picture area
32.44 µs
156 lines
17%
of active picture area
33.04 µs
132 lines
CTA_Size Large (for 36" picture tubes)
•
Width
•
Height per frame
17%
of active picture area
42.37 µs
120 lines
17%
of active picture area
42.82 µs
102 lines
Figure 4-92. Color Temperature Adjustment
Applications:
This pattern is used for checks and adjustments of the standard white of CRTs. Most
television systems have standardized on 'Color White D6500 Kelvin' or '3200 Kelvin' as
the correct white reference necessary for a natural color reproduction. Three white
windows with a different size are selectable to adapt the measurement equipment for
picture tubes in the 14" through 36" range.