Tektronix PG 506 Instruction Manual page 41

b. Usi ng the 7T11 Time Position, set the risi ng edge of
the display waveform on the first vertical graticule line.
c. CHECK-that the display waveform (following the
first 10 ns or 0.2 div) flatness is within 0.2 divisions.
d. Disconnect the coaxial cable from the positive­
going FAST RISE OUTPUTS connector and connect it to
the negative-going FAST RISE OUTPUTS connector.
e. Set the 7S 11 +Up/ l nvert to Invert.
f. Repeat parts band c for the negative-goi ng Fast Rise
output.
18. Check High Amplitude Output Risetime and
Aberrations
Set the following controls as indicated:
PG 506
Function HIGH AMPL
PERIOD
1
fJS
1 MHz
VAR
ccw
PULSE AMPLITUDE MAX
7S11
mV/Div 100
+Up/ lnvert +Up
Dot Response midrange
Normal in
Sequential
in
7T11
Time Pos Rng
5 fJS
Time/Div
.1 fJS
Sequential in
Slop - in
Trig Input
Ext 50
n
2 V Max
Trig Amp X1
a. Using a 50
n
precision coaxial cable, 10X
attenuator, and sma to bnc female adapter, connect the
AMPL OUTPUT HIGH or STD connector to the S-6 upper
connector.
b. Using the 7S11 Variable and dc Offset controls,
obtain a 5 division peak-to-peak amplitude display.
c. Set the 7T11 Time/ Div to 50 ns.
@
Calibration Procedure-PG 506 (SN B040000 & up)
Performance Check
d. Using the 7T11 Time Position and 7S11 dc Offset,
place the 50% pOint of the positive-going waveform at the
first vertical graticule line.
e. Set the 7S11 mV/Div to 10.
f. Using the 7S11 de Offset, align the waveform with
the vertical graticule.
g. CHECK-that the aberrations are ~ 2% in the first
50 ns.
h. Set the 7S11 mV/ Div to 100 and the 7T11 Time/ Div
to 5 ns.
i. Using the 7S11 de Offset and 7T11 Time Position,
center the display.
j.
CHECK-that risetime between the 10% and 90%
pOint is
~ 10
ns.
k. Remove the sampling system connections and
plug-ins from the 7000-Series oscilloscope and install the
real-time oscilloscope plug-ins.
I. Using an FET probe, connect the test oscilloscope
vertical input directly to the AMPL OUTPUT HIGH or STD
connector.
m. Set the following controls as indicated:
Test Oscilloscope
Volts/Div
20
Time/ Div
50 ns
n. Using the test oscilloscope triggering controls,
obtain a stable display.
o. Usi ng the vertical variable sensitivity and horizontal
controls , place a 5 division positive-going waveform at
midscreen.
p. CHECK-that risetime between the 10% and 90%
pOint is
~ 100
ns.
This completes the Performance Check.
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