Tektronix 11A32, Service Reference Manual

Page: 21 / 71

Step Response: Standard Procedure
Examine Mainframe Step Response
Setup
Oscilloscope
Mainframe
0 0
oscilloscope’s settings, then fallowing in the
listed:
Utility Instrument Options
Waveform
Scaling
(Forced)
c
T r i g g e r m e n u Source
Trigger Source Description menu C (center)
Plug-h
Not used in this step.
T e s t o r + Step
Rep Rate
12
o’clock
.
9 o’clock
M a i n
2
Trig Level 40%
position positive pulse
one division from left edge of
Acquire Description
5
Pos: Wfm top of on
horizontal
100
Procedure
a . Record displayed waveform on paper or a hardcopy of
display. This waveform is used in the following Examine/Adjust Plug-In Step
procedure for comparison against the plug-in step response.
b. Sat the mainframe ON/STANDBY to STANDBY.
Remove the Signal Standardizer from the Center plug-in compartment.
from the Left plug-in compartment.
and Adjustments-t Service
2-Y