When using an oscilloscope to troubleshoot a digital system, the instrument should be triggered by_________.
A) line sync, in order to observe troublesome power line glitches
B) the AC line voltage
C) the A channel or channel 1
D) the system clock

Question

Quizplus · Accepted Answer

The system clock is often used as a trigger source when troubleshooting digital systems with an oscilloscope because it provides a stable reference that is synchronous with the digital signals being analyzed. This allows for consistent and accurate observation of the digital waveforms relative to the operation of the system.

When Using an Oscilloscope to Troubleshoot a Digital System, the Instrument