Front Panel
7.
EXTINPUT
Input connection for an external trigger signal.
8.
ACOUPL
Selects the method of coupling the
A
trigger source:
NORM
(Normal Coupling)
-
Couples all frequency components of the
trigger signal.
HF REJ
(High-frequency Reject) -Attenuates AC components of the trig-
ger signal above 40 kHz.
LF REJ
(Low-frequency Reject) -Attenuates AC components of the trigger
signal below 40 kHz.
A LINE SOURCE
-
Uses a signal derived from the AC power line to trigger
the A sweep.
Selects the trigger signal source for both
A
and
B
Triggers:
VERT MODE
(Vertical Mode)
-
The selected vertical mode automatically
supplies the trigger signal. In
ADD
or
CHOP
the trigger source is the alge-
braic sum of the Channel
1
and Channel
2.
In
ALT,
the trigger source alter-
nates between the channels in sync with the display.
CH 1
-
Selects only the signal in channel
1
as the trigger source regardless
of the vertical mode selected.
CH 2
-
Selects only the signal in channel
2
as the trigger source.
A EXT
(A External)
-
Uses the signal applied to the
EXT INPUT
connector
as the trigger signal for the
A
trigger circuit.
10.
SLOPE (A Trigger)
Selects either the positive (button out) or the negative (button in) signal
transition for triggering the next A sweep or acquisition.
1 1. LEVEL (B Trigger)
Sets the point in the signal transition at which the
B
sweep trigger occurs. If
the control is set to
RUNS AFTER DELAY, B DELAY TIME POSITION
will
control the amount of time delay from the start of A sweep to start of
B
sweep. (The
A
sweep, and not
B
sweep, is triggered in
RUNS AFTER
DELAY
mode.)
12. SGLSWP
(Single Sweep)
-
Sets the oscilloscope to trigger a single sweep in the
NON-STORE
mode. In the
STORE
mode, single-shot events are captured
and displayed.
2232
User
Manual
A
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