TB 9-6625-2274-50
(2) Press AMPLITUDE MODE NUMBER OF DIV (MULTIPLIER)
pushbutton to display X 4 DIV.
(3) Adjust UNITS/DIV dial to display 5 V/D.
(4) Press OUTPUT ON pushbutton on.
u.
Adjust A8R140l (fig. 1) until
oscilloscope displays exactly 6
vertical divisions of
trace
separation.
v.
Press OUTPUT ON pushbutton off and
remove oscilloscope connections.
a. Press TIMING MODE MARKERS pushbutton.
b.
Connect multimeter positive lead to
A4TP1501 (fig. 1) and
negative lead to
c.
Adjust A4R1400 (fig. l) for a
multimeter indication of
+12.0 V dc
0.1 V.
e. Connect OUTPUT to digitizing oscilloscope INPUT/TDR OUTPUT using X10
attenuator. Connect TRIGGER OUTPUT to digitizing oscilloscope TRIG.
f. Position controls as listed in (1) through (7) below:
(1) Press TIMING MODE MARKERS pushbutton.
(2) Press TIMING MODE MAG X10 pushbutton off.
(3) Press VARIABLE ON pushbutton off.
(4) Adjust UNITS/DIV dial to display 20 ns/D.
(5) Press TRIGGER ON pushbutton on.
(6) Press TRIGGER NORM pushbutton on.
(7) Press OUTPUT ON pushbutton on.
speed and delay to display 2 time marker waveforms.
h.
Adjust A4C1011 (fig. 1) until
digitizing oscilloscope displays a
triangular shaped
marker amplitude indicating greater than 1.25 V peak (R).
i. Press OUTPUT ON pushbutton off. Remove digitizing oscilloscope connections.
Connect TRIGGER OUTPUT to frequency counter A input using 50 Ω feedthrough
termination.
j.
Position controls as listed in (1) through (4) below.
(1) Press TIMING MODE MARKERS pushbutton.
(2) Adjust UNITS/DIV dial to display .2s/D.
(3) Press TRIGGER ON pushbutton on.
(4) Press TRIGGER NORM pushbutton on.