TM 11-6625-2735-14-1
f. Set B TRIGGER SOURCE to STARTS AFTER
DELAY and set TIME/DIV to 1
g. Set the sine-wave generator for a 1.5 division,
200 megahertz display.
h. Set B TRIGGER SOURCE to NORM and set
TIME/DIV to 0.01
i. CHECK—That a stable triggered display, with no
more than 0.2 division of jitter, can be obtained in AC, LF
REJ, and DC positions of B TRIGGER COUPLING with
adjustment of A and B TRIGGER LEVEL controls.
g.
j. Disconnect all test equipment.
17. Check TRIG MODE NORM Operation
a. Set HORIZ DISPLAY to A, set TIME/DIV to 1 ms, set
X10 MAG to off (button out), set INTENSITY, if necessary,
for a convenient trace intensity and set B TRIGGER
COUPLING to AC.
b. Set the amplitude calibrator for a 50 millivolt output
and connect to CH 1 input through a 42-inch 50-ohm BNC
cable.
c. Set A TRIGGER LEVEL for a stable triggered
display.
d. Set TRIG MODE to NORM.
e. CHECK—For a stable triggered display.
f. Remove the test signal from CH 1 input.
g. CHECK—For no visible trace.
18. Check TRIG MODE SINGL SWP Operation
a.
b.
c.
d.
e.
f.
h.
i.
j.
19.
a.
Return the test signal cable to CH 1 input.
Press and release SINGL SWP pushbutton.
Remove the test signal cable from CH 1 input.
Press and release SINGL SWP pushbutton.
CHECK—That READY light turns on.
Return the test signal cable to CH 1 input.
CHECK–That READY light is extinguished.
Press and release SINGL SWP pushbutton.
CHECK–For a single-sweep display (1 sweep only).
Set TRIG MODE to AUTO.
Check TRIG VIEW Operation
Move signal cable from CH 1 input to A TRIGGER
external input and set A TRIGGER SOURCE to EXT.
b. Set the amplitude calibrator for a 200 millivolt
output.
c. Press TRIG VIEW and hold it in.
d. Position the waveform for a maximum amplitude
display with A TRIGGER LEVEL control.
e. CHECK—For approximately 4 divisions of display.
f. Release TRIG VIEW.
g. Disconnect all test equipment.
5-14