Tektronix, Inc. P6240, User Manual

Page: 32 / 321

Example 1: Displaying Waveforms
1–12
TLS 216 User Manual
Each of the group buttons has an LED above it. Right now, the GROUP 1
LED is on. This LED indicates that the vertical controls are set to adjust
Group 1.
3. Disconnect the Channel 2 probe from the probe calibration output.
4. Press GROUP 2.
The display shows a second waveform, which represents the signal on
Channel 2 in Group 2. Since there is nothing connected to the Channel 2
probe, this waveform is a flat line.
There are several other important things to observe:
H
The vertical readout displays settings for both Group 1, which contains
Channel 1, and Group 2, which contains Channel 2.
H
The logic scope created Group 2 containing only one channel — the
lowest-numbered channel not belonging to any group.
H
The group readout for each group indicates single channel groups by
displaying the channel it contains as the first and last channel. (See
Figure 1-9.)
H
There are two group indicators at the left edge of the graticule. Right
now, they overlap.
H
The LED next to the GROUP 2 button is now on, and the GROUP 1
LED is off. Because the knobs control only one group at a time, the
vertical controls are now set to adjust Group 2.
NOTE
. The logic scope still triggers on Channel 1. It does not change trigger
source when adding (or removing) groups. (You can change the trigger source to
any channel by using the TRIGGER MENU button to display the trigger menu.)