Why does pressing the “AUTO SET” button change the oscilloscope settings?

amy

I think the oscilloscope AUTOSET function may be more aimed at unknown signals and display real signals. All waveforms need to be included in the screen. Users adjust according to their needs.
In addition, the ratio of the power ripple to its own voltage is too small. The oscilloscope should judge that the signal is DC, and can not more accurately judge the ripple signal.