TB 9-6625-2274-40
(f) TRIGGER NORM.
(g) OUTPUT ON on.
(3) Press and hold FAST EDGE pushbutton until display indicates dL.
(4) Set digitizing oscilloscope probe attenuation to 10.
Acquire signal using
digitizing oscilloscope.
(5) Perform Delta V measurement technique using digitizing oscilloscope, by placing
the Delta V markers on the upper and lower waveform peaks. Digitizing oscilloscope Delta
V will indicate between 1.045 and 1.155 V. Record Delta V indication.
(6) Press VARIABLE ON pushbutton on. Turn VAR dial (min/max) to vary pulse
amplitude indication on digitizing oscilloscope.
(7) Digitizing oscilloscope will indicate a pulse amplitude indication at least l0
percent of pulse amplitude recorded in (5) above.
(8) Press VARIABLE ON pushbutton off.
(9) Maintain setup and continue with next performance check.
b. Adjustments. No adjustments can be made.
26. Fast Edge Pulse Risetime
a. Performance Check
(1) Acquire signal using digitizing oscilloscope.
(2) Perform risetime measurement technique using digitizing
oscilloscope.
Digitizing oscilloscope will indicate a risetime measurement of 150 ps/D.
(3) Maintain setup and continue with next performance check.
b. Adjustments. No adjustments can be made.
27. Fast Edge Leading Edge Aberrations
NOTE
If any of the following aberration performance checks are not
within the limits specified, perform b below.
a. Performance Check
(1) Acquire signal using digitizing oscilloscope and set sweep speed to 1 ns/D.
Adjust delay to center waveform on vertical center graticule.
(2) Set digitizing oscilloscope sensitivity to 10 mV/D and adjust offset to place the
top of waveform on center horizontal graticule.
(3) Adjust digitizing oscilloscope offset and delay until waveform is displayed as
indicated in figure 2.