Triggering
TDS5000 Series User Manual
3-57
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
Trigger status
from trigger
status l ights
1. To quickly determine the trigger status, check the ARM,
READY, and TRIG’D controls.
H If TRIG’D is on, the oscilloscope has recognized a
valid trigger and is filling the posttrigger portion of
the waveform.
H If READY is on, the oscilloscope can accept, and is
waiting for, a valid trigger to occur.
H If ARM is on, the trigger circuitry is filling the
pretrigger portion of the waveform record.
H If both TRIG’D and READY are on, a valid A event
trigger has been recognized and the inst rument is
waiting for a delayed trigger. When a delayed
trigger is recognized, the posttrigger portion of the
delayed waveform will fill.
H If ARM, TRIG’D, and READY are off, the
acquisitions have stopped.
Trigger 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
Checking Trigger Status
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