TB 9-6625-2337-24
ENTR, (ON).
(d)
Use the arrow keys to highlight M4:.
(e)
ENTR, (OFF).
(f)
Press FUNC, .
(g)
3, ENTR (1ST REPLY).
(h)
Use the arrow keys to highlight REPLY SIGNAL:.
(i)
ENTR, (SIF).
(j)
Press FUNC, .
(k)
5, ENTR (TIMING, VIDEO LEVELS).
(l)
Use the arrow keys to highlight CHALLENGE VIDEO:.
(m)
5, ENTR (5V).
(n)
Use the arrow keys to highlight 1ST REPLY VIDEO:.
(o)
5, ENTR (5V).
(p)
(31) Disconnect TI from oscilloscope.
(32) Connect the IFF VIDEO CHAL/TAG output to channel 1 of the oscilloscope
using a 75 feedthrough termination.
(33) Connect the IFF VIDEO FIRST REPLY output to channel 2 of the oscilloscope
using a 75 feedthrough termination.
(34) Press TI keys as listed in (a) through (p) below:
(a) Press FUNC, .
(b) 14, ENTR (PRF/PRI).
(c) Use the arrow keys to highlight PRI:.
(d) 6000, ENTR, (6000 s).
(e) Press FUNC, .
(f) 3, ENTR (1ST REPLY).
(g) Use the arrow keys to highlight M1:.
(h) ENTR, (ON).
(i) Use the arrow keys to highlight M2:.
(j) ENTR, (ON).
(k) Use the arrow keys to highlight M3/A:.
(l) ENTR, (ON).
(m) Use the arrow keys to highlight MC:.
(n) ENTR, (ON).
(o) Use the arrow keys to highlight RANGE DELAY:.
(p) 0, ENTR, (0μs).
(35) Measure the delay from the leading edge of the last pulse on oscilloscope channel
1 to the leading edge of the first pulse on oscilloscope channel 2.
(36) Oscilloscope indication will be within limits shown in row 1 of table 23.
(37) Repeat technique of (34) through (36) above for remaining rows in table 23.
Oscilloscope indication will be within limits shown in table 23.
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