Controls, Connectors, and Indicators
With CHOP vertical mode, all channels are displayed
with both the FLD 1 and the FLD 2 triggers.
With Alt vertical mode and more than one channel
displayed,
field 1 of the video signal triggers the sweep
with the first displayed channel and field 2 triggers the
sweep with the next displayed channel. With more than
two channels, each additional channel is displayed with
triggers from both fields.
A/B TRIG The MODE, SOURCE, COUPLING, SLOPE, LEVEL,
Button and INIT@50% controls are normally directed to the
A Trigger. They are directed to the B Trigger with Inten,
Alt, or B-Sweep horizontal displays, if B mode is TRIG
AFT DLY (or, with the C7T, TRIG A DLY). The trigger
controls are directed to the opposite trigger while the
A/B TRIG button is pressed. With Inten, Alt, or B-Sweep
horizontal displays, and with B-Trigger mode set to RUN
AFT DLY or with A-Trigger mode set to Sgl Seq, the
trigger controls are alternately directed to the A Trigger
or to the B Trigger each time the button is pushed.
42) LEVEL
Control
Sets the amplitude point on the triggering signal at
which A-Sweep or B-Sweep triggering occurs.
When the A-Trigger mode is set to Auto Lvl. the effect
of the LEVEL control is spread over the peak to peak
amplitude of the triggering signal. When the control is
rotated to either extreme, the peak values are
measured,
and the control range is redefined to
correspond to the peak values. If LEVEL is fully
clockwise, the initial level is near the positive peak. If
LEVEL is fully counterclockwise, the initial level is near
the negative peak.
5-24
2465B/2455B/2445B Operators
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