Basic Operation
QC1936 Digital Storage Oscilloscope 9
2. SYNC/TRIG: Output the Sync signal, or input trigger signal on DDS interface.
3. CH1, CH2: Input connectors for waveform display, through which to connect and input the
signal to be measured.
4. GEN AMP: Power amplifier output.
5. EXT.TRIG: Input connector for an external trigger source, though with to connect and input
the external trigger signal.
6. Probe Compensation: Voltage probe compensation output and ground, used to electrically
match the probe to the oscilloscope input circuit. The probe compensation ground and BNC
shields connect to earth ground and are considered to be ground terminals. To avoid
damages, do not connect a voltage source to any of these ground terminals.
2.4 Oscilloscope Setup
While operating the oscilloscope, you may often use three features: Autoset, saving a setup and
recalling a setup. Hereinafter they are introduced one by one.
Autoset: This function can be used to adjust the horizontal and vertical scales of the oscilloscope
automatically and set the trigger coupling, type, position, slope, level and mode, etc., to acquire a
stable waveform display.
Saving a Setup: By default, the oscilloscope will save the setup each time before being closed,
and automatically recall the setup once being turned on. (Note: If you modify the setup, please
wait for more than 5 seconds before turning off the oscilloscope to ensure the proper
storage of new settings.) You can save 10 settings permanently in the oscilloscope and reset
them as necessary.
Recalling a Setup: The oscilloscope can recall any of your saved setups or the default factory
setup.
Default Setup: The oscilloscope is preset for normal operations when it is shipped from the
factory. This is the default setup. You may recall this setup at any time for your requirements.
2.5 Default setups
The default setups represent some option parameters that are set before the oscilloscope leaves
factory for normal operations.
When you push “UTILITY->Default” button, the oscilloscope will display the CH1 waveform and
remove all the others. The table below gives the options, buttons and controls that change settings
at default setup.
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