Promax OS-782 Manual Del Usuario página 134

USER'S MANUAL. OS-782
6. There is no display on the screen when you push down RUN/STOP key
under the oscilloscope mode.
Check whether the trigger mode in the trigger mode menu is in normal or single
shot and whether the trigger level is out of the waveform range.
In such condition, adjust and make the trigger level in the middle or select the
non-auto trigger mode. Additionally, press the AUTO SET key and complete the
above setting
7. When select the average sampling in the sampling mode or select a
longer display time in the display mode under the oscilloscope, the
display speed is slow.
It is normal in the above case.
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