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Triggering
3-82
CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
To see the state and setup of the triggering circuit, use the trigger status lights,
readout, and screen.
Overview To check trigger status Control elements and resources
T rigger status
from trigger sta-
tus lights
1. To quickly determine trigger status, check the three
status lights TRIG’D, READY, and ARM in the Trigger
control area.
H TRIG’D on: the instrument has recognized a valid
trigger and is filling the posttrigger portion of the
waveform.
H READY on: the instrument can accept, and is
waiting for, a valid trigger to occur.
H ARM on: the trigger circuitry is filling the pretrigger
portion of the waveform record.
H TRIG’D and READY on: valid A trigger recognized,
waiting for a delayed trigger. When a delayed
trigger is recognized, the posttrigger portion of the
delayed waveform will fill.
H ARM, TRIG’D, and READY off: the digitizer is
stopped.
T rigger status
from acquisition
readout
2. To quickly determine the settings of some key trigger
parameters, check the Trigger readout at the bottom of
the display. The readouts differ for edge and the
advanced triggers.
Time base
A trigger
source = Ch 1
Trigger
slope = rising edge
Trigger level
To Check Trigger Status