Appendix 
C: 
Performance Verification 
Table A-1 1 
: 
Settings for Timing Accuracy Checks (Cont.) 
SECIDIV Switch 
Setting  Normal 
(XI)  XI 0 Magnified 
A Sweep Only 
Step 2: 
Check Store Differential and Cursor Time Difference Accuracy 
a.  Set: 
CH 1 AC-GND-DC 
GND 
Horizontal 
MODE 
A 
A SECIDIV 
0.1 
ms 
XI0 
Magnifier 
Off (knob in) 
STOREINON-STORE 
STORE 
(button in) 
b.  Use the 
CH 1 POSITION 
control to center the base line vertically 
and the Horizontal 
POSITION 
control to align the start of the trace 
with the 
Ist 
vertical graticule line. 
c.  Using the 
CURSORS 
control and 
SELECT C1lC2 
(push in the 
CURSORS 
control knob) switch, select one of the two cursors and 
set it exactly on the 
2nd 
vertical graticule line. Select the other cursor 
and move it towards the right until the 
AT 
readout displays 
0.800 
ms. 
d. 
CHECK 
- 
Graticule indication of cursor difference at the 
loth 
verti- 
cal graticule line is within 
0.1 
6 
division. 
e.  Set the 
CH 1 AC-GND-DC 
switch to 
DC. 
f.  Select 
0.1 
ms time markers from the time-mark generator. 
g.  Align the 
2"d 
time marker with the 
2"d 
vertical graticule line using the 
Horizontal 
POSITION 
control. 
h.  Press in the 
SAVEICONT 
button to select 
SAVE 
for a stable display. 
i. 
Use the 
CURSORS 
control and 
SELECT C1lC2 
(push in the 
CUR- 
SORS 
control knob) switch to set the first cursor on the trailing edge 
of the 
2nd 
time marker. 
j. 
Press in the 
CURSORS 
control knob again to activate the second 
cursor. 
A-40 
Appendices