Check Position Range; Check Acquisition Position Registration; Check Non Store Aberrations - Tektronix 2230 Operator's Manual

Appendix A-2230 Operators
4. Check Position Range
a. Set:
VOL TS/DIV (both)
AC-GND-DC (both)
STORE/NON STORE
50 mV
AC
NON STORE (button out)
b. Set the generator to produce a 0.5 V standard-
amplitude signal.
c. Adjust the CH 2 VOL TS/DIV Variable control to pro-
duce a 4.4 division display. Set the CH 2 VOL TS/DIV
switch to
10
mV.
d. CHECK-The bottom and top of the trace may be
positioned above and below the center horizontal graticule
line by rotating the Channel 2 POSITION control fully
clockwise and counterclockwise respectively.
e. Move the cable from the CH 2 OR Y input connector
to the CH 1 OR X input connector. Set the VERTICAL
MODE switch to CH
1.
f. Repeat parts c and d using the Channel 1 controls.
g. Disconnect the test equipment from the instrument.
5. Check Acquisition Position Registration
a. Set:
VOL TS/DIV (both)
AC-GND-DC (both)
A SEC/DIV
SAVE/CONTINUE
10 mV
GND
10
µS
CONTINUE (button out)
b. Position the trace exactly on the center horizontal
graticule line using the Channel 1 POSITION control and
position the trace start to the left most vertical graticule
line.
c. Set STORE/NON STORE switch to STORE (button
in).
d. CHECK- Trace remains within 0.5 division of the
center horizontal graticule line and the trace start is within
0.5 division of the left vertical graticule line.
A-6
e. Set:
VERTICAL MODE
STORE/NON STORE
CH 2
NON STORE
f. Repeat parts b through d for Channel 2 trace.
g. Position the trace 0.5 division below the top horizon-
tal graticule line using the Channel 2 POSITION control.
h. Set SAVE/CONTINUE switch to SAVE (button in).
i. CHECK-Trace shift of 0.5 division or less.
j. Set SAVE/CONTINUE switch to CONTINUE (button
out).
k. Position the trace 0.5 division above the bottom hor-
izontal graticule line using the Channel 2 POSITION con-
trol.
I. Set SAVE/CONTINUE switch to SAVE (button in).
m. CHECK-Trace shift of 0.5 division or less.
n. Set SAVE/CONTINUE switch to CONTINUE (button
out).
o. Set the VERTICAL MODE switch to CH 1.
p. Repeat steps g through I for Channel 1 trace.
6. Check Non Store Aberrations
a.
Set:
BW
LIMIT
VOL TS/DIV (both)
AC-GND-DC (both)
A SEC/DIV
STORE/NON STORE
Off (button out)
2 mV
DC
0.05
µS
NON STORE (button out)
b. Connect the fast-rise, positive-going square-wave
output via a 50 Q cable, a 1
OX
attenuator, and a 50 Q ter-
mination to the CH 1 OR X input connector.
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