TB 9-6625-2295-24
(38) Set A SWP SEC/DIV switch to 50 ns and B SWP SEC/DIV switch to 5 ns
(knob out).
(39) Press X10 MAG pushbutton on and 't pushbutton off for DLY readout.
(40) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 50 ns.
(41) Adjust ' REF OR DLY POS control for DLY 53.2 ns and
POSITION
control to position leading edge of 2d time marker near graticule center.
(42) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 5 ns.
(43) Press 't pushbutton to obtain a 't display and push in SEC/DIV knob for B
SWP only.
(44) Adjust ' control for a 't readout indication near -50.0 ns to superimpose the two
time markers. If 't readout indication is not within limits specified in first row of table 19
with the two time markers superimposed, perform b below.
(45) Repeat technique of (44) above for 't readout indications listed in table 19. If 't
readout indications are not within specified limits in table 19 with the two time markers
superimposed, perform b below.
Table 19. Delta Time Display
Test instrument
't readout indications limits
't readout
indications (ns)
Min (ns)
Max (ns)
50.00
50.80
49.20
50.00
49.20
50.80
400.00
398.10
401.90
(46) Press TRACK/INDEP pushbutton for TRACK.
(47) Set A SWP SEC/DIV switch to 100 ns and set B SWP SEC/DIV switch to 10
ns (knob out).
(48) Press Xl0 MAG pushbutton on.
(49) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of .1 s.
(50) Adjust ' REF OR DLY POS controls for a 't readout of 800.0 ns (8 times A
SWP SEC/DIV setting).
(51) Adjust POSITION control to align leading edge of 2d time marker on A
sweep with 2d vertical graticule line.
(52) Adjust TRACE SEP control ccw to separate traces.
(53) Adjust ' REF OR DLY POS control to intensify 2d and 10th time markers on A
sweep and display leading edges of displayed B sweep time markers in center area of
graticule.
(54) If B sweep time marker leading edges are not 3.4 divisions or less apart, perform
b below.
(55) Set A SWP SEC/DIV switch to 200 ns and set B SWP SEC/DIV switch to 20
ns (knob out).
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