TB 9-6625-2132-35
(3) Press oscilloscope calibrator VOLTAGE key and set oscilloscope calibrator
output for 1 kHz and 6 divisions of vertical deflection on oscilloscope.
(4) Adjust standardizer for optimum square wave (square corners and flat tops).
(5) Repeat technique of (3) above for TI VOLTS/DIV settings listed in table 5. If
aberrations on square wave are more than 3 minor divisions, perform appropriate
adjustment listed in table 5.
Test instrument
Adjustments (fig. 1)
VOLTS/DIV
+INPUT
-INPUT
switch settings
Square corner
Flat top
Square corner
Flat top
10 mV
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C34 (R)
20 mV
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50 mV
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.1 V
C8A (R)
C8B (R)
C28A (R)
C28B (R)
.2 V
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.5 V
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1 V
C5A (R)
C5B (R)
C25A (R)
C25B (R)
(6) Remove connection from +INPUT and connect to -INPUT.
(7) Press +INPUT pushbutton to GND and -INPUT pushbutton to DC.
(8) Set VOLTS/DIV switch to 10 mV.
(9) Repeat technique of (5) above for -INPUT.
b. Adjustments. No further adjustments can be made.
a. Performance Check
(1) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 output to TI
+INPUT, using a 50 Ω feedthrough termination.
(2) Position TI controls as listed in (a) through (e) below:
(a) VOLTS/DIV switch to 50 mV.
(b) +INPUT pushbutton to DC.
(c) -INPUT pushbutton to GND.
(d) VOLTS counter set to 0.000.
(e) BW pushbutton to FULL.
(3) Set time base to .05 s and magnifier pushbutton to X10 (out).
(4) Press oscilloscope calibrator EDGE key. Set oscilloscope calibrator output
frequency to 100 kHz and set amplitude for 6 divisions of vertical deflection on oscilloscope.
Center displayed pulse vertically on crt.
(5) Measure risetime, using standard risetime technique. If risetime is not 3.5 ns or
less, and aberrations are not 1.5 minor divisions or less, perform appropriate procedure and
b. Adjustments. No further adjustments can be made.
