Keysight E4990A - LCD Screen

Quick Start
23
Span
Displays the data entry bar for specifying the span value
of the sweep range in the upper part of the screen. (It
also displays the Stimulus Menu in the same way as
Start.)
Sweep
Setup
Displays the Sweep Setup Menu in Softkey Menu Bar.
Manipulating the Sweep Setup Menu enables you to
specify the signal source power level, sweep time,
number of points, sweep type, etc.
Trigger
Displays the Trigger Menu in Softkey Menu Bar.
Manipulating the Trigger Menu enables you to specify the
trigger mode and trigger source. You can specify the
trigger mode for each channel.
LCD Screen
The E4990A is equipped with a 10.4-inch TFT color, touch-sensitive LCD
screen for displaying traces, scales, settings, softkeys and other
measurement related information. The touch screen LCD allows you to
manipulate softkeys by touching the LCD screen directly with a finger. For
more on the LCD screen, see Screen Area: Names and Functions of Parts.
Do not press the surface of the LCD screen with a
sharp object (e.g., nail, pen, or screwdriver). Pressing the
surface with a sharp-pointed object will damage the LCD
screen surface or cause the screen to fail.
Valid pixels are 99.998 % and more. Below 0.002%
of fixed points of black, blue, green or red are not regarded as
failure.
Standby Switch
This switch can turn on/off the E4990A. The color on the button shows the
status as shown below:
Indicator Color Description
Green
Normal power on status.
Orange
Standby status.
Red
Illegal power on status.