Tutorial
2–18
TDS 684A, TDS 744A, & TDS 784A User Manual
7. Press W (side) to toggle the selection to 50 W. That changes the input
coupling of channel 2 from 1 MW to 50 W. The channel readout for
channel 2 (near the bottom of the graticule) now shows an W indicator.
Pressing a channel (CH) button sets the vertical controls to that channel. It also
adds the channel to the display if that waveform is not already displayed. To
explore assigning controls to different channels, do the following steps:
1. Press CH 1.
Observe that now the side menu title shows Ch1. (See Figure 2–13), and that
the light above CH 1 is lighted. The highlighted menu item in the side menu
has changed from the 50 W channel 2 setting to the 1 MW impedance setting
of channel 1.
2. Press CH 2 ➞ W (side) to toggle the selection to 1MW. That returns the
coupling impedance of channel 2 to its initial state.
Side Menu Title
Figure 2–13: The Menus After Changing Channels
Pressing the WAVEFORM OFF button removes the waveform for the currently
selected channel. If the waveform you want to remove is not already selected,
select that channel using the channel (CH) button.
1. Press WAVEFORM OFF (under the vertical SCALE knob).
Assign Controls to
Another Channel
Remove a Waveform
