TB 9-6625-2295-24
(44) Adjust TI ' control to superimpose time markers on oscilloscope within 0.2 division.
(45) Press and release upper TRIGGER COUPLING pushbutton and display
readout will indicate ADJ ', (step) 18, 3 Ps.
(46) Repeat technique of (42) through (45) for setting listed in table 24. Each time
upper TRIGGER COUPLING pushbutton is pressed in (45) above the TI display will
indicate next step listed in table 24 unless noted.
Table 24. Timing (CAL 01, Steps 18 Through 27)
Test instrument
Oscilloscope
Oscilloscope
CAL 01
Superposition
calibrator
SEC/DIV
displayed
tolerance in
Time markers
output settings
settings
step number
divisions
over 8 divisions
(Ps)
1
18
24
1
20
ns
1.2
19
8
2
50
ns
0.2
1
20
24
2
50
ns
1.2
21
8
10
200
ns
0.1
22
8
50
0.2
1
Ps
1
23
24
50
1.2
1
Ps
24
8
0.5
10
ns
0.2
1
25
24
0.5
10
ns
1.2
26
8
0.1
2
ns
0.2
1
If adjustments are made, TI will indicate previous step.
(47) After step 26 has been completed TI display will indicate ADJ ' (step) 27, 20 ns.
(48) Adjust ' control for approximately 1 time marker per division.
(49) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 5 ns.
(50) Adjust ' REF or DLY POS control to bring time markers on to oscilloscope display.
(51) Adjust ' control to superimpose displayed time markers on oscilloscope to within
0.2 division.
(52) Press and release upper TRIGGER COUPLING pushbutton.
Display will
indicate ADJ ' (step) 28, 500 ps.
(53) Disconnect oscilloscope calibrator from oscilloscope Vertical 1 input and connect
to CH 2 of TI.
(54) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 2 ns.
(55) Adjust TRANS RESP (R802) (fig. 1) for 2 cycles between 2d and 10th graticule
lines at intersections of the two waveforms (R).
(56) Press and release upper TRIGGER COUPLING pushbutton.
Display will
indicate ADJ ' (step) 29, 1 ms.
(57) Move connection from TI CH 2 to oscilloscope Vertical 1 input and set
oscilloscope sweep speed to 20 Ps.
(58) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 1 ms and
adjust ' control for 8 time markers over the center 8 divisions of display.
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