Tektronix P6015A, Instruction Manual

Page: 57 / 76

Adjustments
P6015A Instruction Manual
2–9
Transient Response
1. Set the calibration generator pulse amplitude to minimum.
2. Set the calibration generator to output a square wave with rise
time
≤
10 ns. If you are using a PG 506A, do this by inserting a
50
W
termination between the high/standard amplitude output
and the BNC male-to-GR adapter.
3. Set the oscilloscope time base to display 100 ns/div. Set the
oscilloscope vertical deflection to 1 mV/div (1 V/div when using
the readout option).
4. Set the calibration generator period to 1
m
s, and set the pulse
amplitude to display five divisions.
5. Center the waveform on the screen.
6. The waveform should be flat overall, and the front corner should
be sharp without overshoot. If necessary, perform steps 7 and 8.
7. Adjust
R6
for overall flatness of the front corner.
8. Adjust R7 and C7 for a sharp front corner without overshoot.
There is interaction between R6, R7, and C7. You may have to
repeat steps 7 and 8 to obtain optimum response.