OD1402 - Lesson 1/Learning Event 1
Slope Switch. Selects the portion of the trigger signal that
starts the delayed sweep. The + (IN) position provides that the
delayed sweep is triggered from the positivegoing portion of the
trigger signal. The (OUT) position provides that the delayed
sweep is triggered from the negativegoing portion of the signal.
Coupling Switch. Selects the method of coupling the trigger signal
to the delayed trigger circuits. The AC (IN) position rejects DC
signals, AC signals below 30 hertz are attenuated.Signals between
30 hertz and 50 megahertz are accepted intact. The DC (OUT)
position provides that all signals from DC and AC to 50 megahertz
are accepted intact.
Source Switch. Selects the source of the delayed trigger signal
and determines the function of the DLY'D TRIG IN connector. The
INT (IN) position provides that the delayed trigger signal is
provided by the vertical amplifier. The EXT (OUT) position
provides that the delayed trigger signal is obtained from an
external source, through the DLY'D TRIG IN connector.
Delay Time Mult Knob. Provides for selecting a variable sweep
delay between 0 and 10 times the delay indicated by the TIME/DIV or
DLY TIME switch setting.
Main Trig In or Amp In Connector. Provides for connecting a cable
to the Dual Time Base for an external triggering signal input.
Also, when the Main Triggering Amplifier Source is EXT or EXT 10,
and the TIME/DIV or DLY TIME switch is set to AMPL, this connector
can be used for an external horizontal input.
Dly'd Trig In Connector. Provides for connecting a cable to the
Dual Time base for external delayed triggering signal input.
Now we have covered the functions of all the controls and
connectors on the front of the oscilloscope. Let's begin preparing
the oscilloscope for operation.
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