Displaying signals
Figure 3-2:  Horizontal Display Controls
Selecting the Vertical Mode and Scale
The vertical display controls allow you to adjust the vertical scale, position, 
and mode.
I- ! Step 1:  Select the channel you want with the CHI  BOTH CH2 switch: 
CH I — Displays Channel 1  only.
BOTH — Activates the ADD ALT CHOP switch for two-channel displays.
CH 2 — Displays Channel 2 only.
n   Step 2:  Preset the input coupling for that channel to ground (GND). 
(Also refer to Precharging the Signal input, page 3-2.)
2221A User Manual
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