LESSON 3
DESCRIBE THE APPLICATION OF GRATING GENERATOR, DOT BAR
GENERATOR, AND VIDEO SWEEP MARKER GENERATOR
TASK
Describe the theory and terminology of maintenance with the application of video
sweep marker generator, grating generator, and dot bar generator.
CONDITIONS: Given information and illustrations about terms and theory relating to
the application of video sweep marker generator, grating generator, and dot bar
generator.
STANDARDS
Demonstrate competency of the task, skills and knowledge by correctly responding to
80 percent of the multiple-choice test covering theory and terminology of the
application of video sweep marker generator, grating generator, and dot bar
generator.
REFERENCES
None
Learning Event 1:
DESCRIBE THE USE AND PURPOSE OF A WAVEFORM MONITOR
1.
The waveform monitor is a specialized oscilloscope which provides detailed or
varied video information.
It can present many video combinations from a complete
television frame to a single segment of a desired line or even a single pulse shape
or edge.
Consequently, the waveform monitor is much more adaptable to television
testing than the average scope. Its uses are much more suitable for system tests
than for individual circuit or circuit component troubleshooting.
2.
The major difference between the waveform monitor and the oscilloscope is the
measuring scale. Examples of three of the scales for waveform monitors are shown
in Figure 3-1.
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