问题：
Why do I get a flat line signal in Vectorscope Display Mode when I apply a 75% or 100% Color Bar Composite Video signal to Channel 1 of my TDS3000 series scope with TDS3VID or TDS3SDI Video module?
答案：
The TDS3VID, or TDS3SDI Vectorscope feature only supports Component Video signals. You must apply a Color Difference Component Analog Video signal, for example; Y,Pb,Pr to two input channels on the TDS3000/B Scope which uses XY mode to produce the Vectorscope display.
此常见问题适用于：
产品系列： TDS3000C Digital Phosphor Oscilloscope (Discontinued) TDS3000C Digital Phosphor Oscilloscope (Discontinued) TDS3000C Digital Phosphor Oscilloscope (Discontinued) TDS3000C Digital Phosphor Oscilloscope (Discontinued) TDS3000C Digital Phosphor Oscilloscope (Discontinued) TDS3000C Digital Phosphor Oscilloscope (Discontinued)
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常见问题 ID 59016
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