LeCroy 9400A User Manual

3) Set CHAN 2 to OFF (49).
4) Set MEMORY D to ON (47).
5)
Set DUAL GRID to ON by pressing push button (14).
6)
Select Memory D by pressing SELECT push button (44).
7)
Adjust VERT CAIN control (42) and Vertical POSITION control (40)
center the trace.
The above procedure enables two independent waveforms to be
simultaneously stored and displayed. Calling the Memory Status menu (3)
enables the user to review all the acquisition parameters.
Note that instead of storing the currently acquired CHAN 1 waveform
into
Memory C and CHAN 2 waveform into Memory D, the Store Trace menu
also
allows the user to inverse this configuration, and to store the
CHAN 1 waveform into Memory D and the CHAN 2 waveform into Memory C.
8.9
Redefinition Function - Expand Memories C, D
As mentioned in Section (5.2.4), the default signal sources for Expand
A and B are CHAN 1 and 2, respectively. It is possible, however, to
expand a waveform stored in reference Memories C and/or D by redefining
these memories to be the new signal expansion source.
I. Expansion of MEMORY C with EXPAND A
Just as Expand A and B enabled the user to expand the signals contained
in CHAN I and 2 (Section 8.3), the signals in reference Memories
and/or D can be expanded as described below.
Procedure:
1) Store the signal into Memory C as described in Section 8.8.
2)
Press EXPAND A push button (46).
3) Use the Vertical POSITION knob to separate the traces on the
screen.
4)
Set CHAN 1 to ON.
5)
Press SELECT push button (44) to frame the X-Chan i message.
6)
Press REDEFINE push button (45).
7) Press push button (4) to define Memory C as the new signal source
for Expand A.
From this step on, the procedure to follow is identical to that
described in Section 8.3 for CHAN i, 2 expansion (steps 3 through 6).
II. Expansion of Memory D with Expand B
The procedure used here is identical to that detailed above, except
that Expand B is substituted for Expand A in Step i, and Memory D is
redefined as the new source for expansion (Step 4).
8-11
Basic 9400A Waveform Measurements
and Operating Procedures

LeCroy 9400A Specifications

General

Brand	LeCroy
Model	9400A
Category	Test Equipment
Language	English