TB 9-6625-2139-24
(40) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton for 5
divisions of horizontal display. Oscilloscope calibrator err display will be within limits
Table 16. X Gain
Oscilloscope
Test instrument
Test instrument
Oscilloscope
calibrator
Test instrument
CH 1 VOLTS/DIV
A AND B SEC/DIV
calibrator VOLTAGE
Err display limits
adjustments
switch settings
output settings
switch settings
r%
X-Y
b(43) and (45)
10 m
50 mV at 1 kHz
3
b. Adjustments
(1) Position controls as listed in (a) through (c) below:
(a) HORIZONTAL MODE switch to A.
(b) A AND B SEC/DIV switches to .1 ms.
(c) X10 CAL control to in position.
(2) Set oscilloscope calibrator MARKER output to .1 mS/D.
(3) Adjust horizontal POSITION control to aline 1st time marker with the 1st
(extreme left) vertical graticule line.
(4) Adjust R740 A SWEEP GAIN (fig. 1) for 1 time marker per division over the
center 8 divisions. (R)
(5) Set HORIZONTAL MODE switch to B and adjust B INTENSITY control for
suitable viewing. Adjust horizontal POSITION control to aline 1st time marker with 1st
vertical graticule line.
(6) Adjust R730 B SWEEP GAIN (fig. 1) for 1 time marker per division over the
center 8 divisions. (R)
(7) Set HORIZONTAL MODE switch to A and pull X10 CAL control to out position.
(8) Set oscilloscope calibrator MARKER output to 10 PS/D.
(9) Adjust horizontal POSITION control to aline the nearest time marker to the 1st
vertical graticule line.
(10) Adjust R754 X10 GAIN (fig. 1) for 1 time marker per division. (R)
(11) Continue calibration at paragraph 9.a.(1) above.
(12) Set A AND B SEC/DIV switches to .2 ms.
(13) Set oscilloscope calibrator MARKER output to 1 mS/D.
(14) Adjust horizontal POSITION control to position middle time marker to center
vertical graticule line.
(15) Push X10 CAL control to in position.
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