Trigger Operation
Trigger SOURCE Switch
The trigger SOURCE switch selects the source of signal for the
trigger generator circuitry. The following selections can be made:
-
VERT Mode (Vertical Mode)
Trigger signals are obtained from the CH 1, CH 2, CH 3 or
CH 4 vertical amplifiers.
In alternate vertical mode, trigger signals are obtained al
ternately from CH 1, CH 2, CH 3 or CH 4.
In CHOP vertical mode, the trigger signal source is the
channel which is lowest in number of the displayed chan
nels.
"VERT” is displayed in the trigger source readout field.
- CH 1 Mode
The triggering signal is obtained from CHl.
With CHl in INVERT position, the polarity of the internal
CHI trigger signal is also inverted.
"CHl" is displayed in the trigger source readout field.
- CH 2 Mode
The triggering signal is obtained from CH2.
With CH2 in INVERT position, the polarity of the internal
CH2 trigger signal is also inverted.
”CH2" is displayed in the trigger source readout field.
- CH 3 Mode
The triggering signal is obtained from CH3,
With CH3 in INVERT position, the polarity of the internal
CH3 trigger signal is also inverted.
"GH3” is displayed in the trigger source readout field,
CH 4 Mode
The triggering signal is obtained from CH4.
With CH4 in INVERT position, the polarity of the internal
CH4 trigger signal is also inverted.
"CH4" is displayed in the trigger source readout field.
- LINE Mode
In LINE Mode, an attenuated ac power line signal is routed
to the trigger circuit,
"LINE” is displayed in the trigger source readout field.
2216 User Manual
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Summary of Contents for 2216
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