TB 9-6625-2240-35
(25) Perform steps (a) through (c) below:
(a) Ensure oscilloscope calibrator EDGE pushbutton green LED is illuminated.
(b) Set TI VOLTS/DIV, TIME/DIV switch settings and oscilloscope calibrator
settings and oscilloscope calibrator EDGE output settings listed in table 18.
(c) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton
to adjust amplitude for 5 divisions on TI crt and measure risetime using standard risetime
technique. Risetime limits are listed in table 18.
Test instrument
Oscilloscope calibrator
EDGE
risetime
Test instrument
output settings
limits
switch settings
VOLTS/DIV
TIME/DIV
Amplitude
(≤)
5m
25 mVpp
10 MHz
1.75 ns
0.01 s
25 mVpp
10 MHz
1.4 ns
0.01 s
10 m
(Tektronix,
Type 475A)
(26) Move connection on TI to CH2 and press VERT MODE CH2 pushbutton (in).
NOTE
Ensure CH2 VOLTS/DIV AC CND DC switch is set to DC for
steps below.
(27) Set TI VOLTS/DIV, TIME/DIV settings and oscilloscope calibrator EDGE
output to settings listed in table 19. Use technique of step (28) below for TI switch settings
and oscilloscope calibrator EDGE output settings listed in table 19.
(28) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton to
adjust amplitude for 5 divisions on TI crt and measure risetime using standard risetime
technique. Risetime limits are listed in table 19.
Oscilloscope calibrator
Test instrument
EDGE
Test instrument
risetime
output settings
switch settings
limits
VOLTS/DIV
TIME/DIV Amplitude
(≤)
5m
25 mV pp
10 MHz
1.75 ns
0.01 s
25 mV pp
10 MHz
1.4 ns
0.01 s
10 m
(Tektronix,
Type 475A)
19