TB 9-6625-2294-35
Test instrument
∆t readout
limits
Test instrument
calibrator
∆t readout
Min
Max
MARKER
(ns)
(ns)
indications
output
(ns)
settings
5 nS/D
-50.00
-49.30
-50.70
5 nS/D
50.00
49.30
50.70
5 nS/D
400.00
398.30
401.70
(47) Perform steps (a) through (g) below:
(a) Press TRACK/INDEP pushbutton for TRACK.
(b) Ensure 20 MHz BW LIMIT is off.
(c) Set A SWP SEC/DIV switch as listed in first row of table 18.
(d) Set B SWP SEC/DIV switch as listed in first row of table 18 (knob out).
(e) Set oscilloscope calibrator MARKER output as listed in first row of table 18.
(f) Press ∆t pushbutton on.
(g) Press X10 MAG off.
(48) Perform steps (a) through (c) below:
(a) Adjust ∆ control for a ∆t readout of 8 times A SWP SEC/DIV setting.
(b) Adjust horizontal POSITION control to align leading edge of 2nd time marker
on A sweep with 2nd vertical graticule line.
(c) Adjust TRACE SEP control ccw to separate traces.
(49) Adjust ∆REF OR DLY POS control to intensify 2nd and 10th time markers of A
sweep. Then slightly adjust ∆REF OR DLY POS to move leading edge of B sweep time
marker to be displayed in center area of graticule. Division limits for horizontal distance
between leading edge of B sweep time markers (2 peaks) will be as listed in table 18, if not,
perform b below.
(50) Repeat technique of steps (47) through (49) above for remaining row listed in
markers will be as listed in table 18; if not, perform b below.
Test instrument
Division limits for
horizontal distance
calibrator
between leading edges of
B SWP SEC/DIV
A SWP SEC/DIV
MARKER
B sweep time markers
switch setting
switch settings
output settings
(≤)
S/D
1 s
1
10 ns
3.4
S/D
5 s
5
50 ns
3.4
