Copy - Tektronix 7D20 Operator's Manual

Operating Instructions-7D20
the waveform such as the vertical position (up or down, vertical expansion or
compression, versus, cursor position and horizontal magnification . The contents of
any waveform memory can be displayed by pressing its corresponding (t through 6)
MEMORY DISPLAY key . When pressed, the numbered MEMORY DISPLAY keys
illuminate to indicate that the memory is being displayed and the respective
waveform memory number appears in the upper left corner of the display in the
DSW (Display Waveform) list as shown in Figure 2-53 . Pressing the key a second
time will extinguish the light and clear the waveform from the display . However,
this is not true of the cursor waveform which cannot be turned off . The numbered
MEMORY DISPLAY keys also have a second function . They are used for making
selections from the MENU, discussed earlier in this section .
COPY
2- 106
Figure 2-53 . DSW (displayed waveforms) readout .
3857-156
This key permits you to copy a waveform from one memory to another . When a
waveform is copied from one waveform memory to another, all the associated
acquire conditions and display conditions are copied too . To do this, press the COPY
key : the COPY key will start blinking and a prompt will appear in the display . The
prompt (shown in Fig . 2-54) will read "COPY p-~#" with the first number sign
blinking . Next, press the numbered MEMORY DISPLAY key corresponding to the
memory you wish to copy . The MEMORY DISPLAY key will illuminate, the contents
of the associated memory will be displayed, and the prompt will show the number of
the waveform you are copying in place of the blinking number sign . The second
number sign will now blink . Next, press the numbered (1-6) MEMORY DISPLAY key
where you wish to copy the waveform . At this point, the waveform will have been
copied into the chosen waveform memory and the COPY key will cease blinking and
stay off . The prompt will now show the number of the waveform memory into which
you just copied the selected waveform in place of the blinking, second number sign .
Press any other key and the copy prompt will disappear from the display. A copied
waveform will not be displayed unless the memory it was copied into was being
displayed before the copy was made .