Instructions

Digital Storage Oscilloscope 56
The Auto Scale function examines all channels for signals and displays corresponding
waveforms. Auto Scale determines the trigger source according to the following
conditions.
 If multiply channels get signals, the oscilloscope will use the channel with
the lowest frequency signal as the trigger source.
 If no signals are found, the oscilloscope will use the lowest-numbered
channel displayed in Auto Scale as the trigger source.
 If no signals are found and no channels are displayed, the oscilloscope will
display and use Channel 1 as the trigger source.
When you use the Auto Scale function and the oscilloscope determines that the signal
is similar to a sine wave, the oscilloscope displays the following options.
Wave Options Details
Multi-Period
Display multiple periods that have appropriate vertical and
horizontal scales.
Single-Period
Set the horizontal scale to display about one period of the
waveform.
Autoscale
Autoscale setting.
Source
Select the source: only display the current source or all
sources.
Cancel
Let the oscilloscope recall the previous setup.
2.13.2 Default Setup
When you push the DEFAULT SETUP button, the oscilloscope will display the CH1
waveform and remove all the others. When you are at the default setup, press F1 to
Undo Preset. Then the oscilloscope returns to the status before default setup. The
table below gives the options, buttons and controls that change settings at default
setup.
Menu or System Option, Button or Knob Default Setting
Acquire
(Three mode options)
Normal
Averages 16
Run/Stop Run
Cursor
Type
Off
Source CH1