OD1402 - Lesson 1/Learning Event 1
controls will not be covered. These controls are for special
applications. For their uses, refer to the operator's manual of
the particular oscilloscope you are using.
Oscilloscope Front Panel Controls
The function of the oscilloscope front panel controls (figure 2, on
the next page) are as follows:
Intensity Control. Controls the brightness of the display.
Focus Knob. Controls the definition (focus) of the display.
Trace Rotation Control. Controls the alignment of the trace with
the screen grids (graticule lines).
Grat Illum (Graticule Illumination) Knob. Controls the brightness
of the graticule lines.
Beam Finder Switch. When pressed, causes the display to be
compressed within the graticule area.
Vertical Mode Switches. Selects the signal from the vertical
amplifiers. It consists of the following five function switches:
o Left Selects the signal from the lefthand vertical
amplifier for display.
o Alt Selects signals from the lefthand and the righthand
vertical amplifiers in alternating patterns for display. Signals
are switched after each sweep.
o Add Selects signals from both vertical amplifiers for
display. Signals are added together and the sum is displayed.
o Chop Selects signals from both vertical amplifiers in an
alternating pattern. Signals are switched at a 1megahertz rate,
under the control of an internal oscillator.
o Right Selects signal from the right hand vertical amplifier
for display.
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