RIGOL  Chapter 5 To Trigger the Oscilloscope 
5-26  MSO2000A/DS2000A User’s Guide 
Tips 
  For a better observation of the waveform details in the video signal, you can 
set a larger memory depth first. 
  In the trigger debugging process of video signals, the frequency in different 
part of the signal can be reflected by different brightness as RIGOL digital 
oscilloscopes provides the multi-level gray scale display function. 
Experienced users can quickly judge the signal quality and discover 
abnormalities. 
 
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