Is it possible to measure the relative timing of two serial component signals with the WFM601M?
Because many digital video systems are buffered, video sources may be out of time by several lines without causing a problem. Exact timing is less of an issue than with analog systems. Buffers, however, have a limited range and it is important that signals be timed close enough together to avoid buffer overflow. Relative timing between two synchronous serial component video signals is easily measured with the WFM601M. To measure relative timing between two serial component signals, connect a synchronous analog reference to the WFM601M and use EXT REF mode. Select SERIAL A, Y-PB-PR waveform display, display CH1 only, CONFIG-WFM/VEC-EAV-PASS on, 1H, LIN SEL. Center the SAV pulse on the display and turn on MAG sweep. Watch for the SAV pulse to change shape between lines 19 and 20 as the V bit changes to indicate start of active video (the line number may read something else because the instrument is locked to the external reference signal). Also note that the SAV pulse and the ringing aro
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- Is it possible to measure the relative timing of two serial component signals with the WFM601M?
