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 TM 11-6625-667-45/NAVAIR 16-30APM123-2/TO 33A1-3-367-22
AN/APM-123V switch
AN/TPM-25A
A
MODE
CODE
FUNCTION
SIF REPLY
CODE MODULATION
SEL
1 .............
7700
1P
7777
EMER
c .............
7777
1P
7777
1P M2/3
1 .............
7700
EMER
7700
EMER
2 .............
7777
SYSTEM
7777
SIF
3/A . . . . . . . . . . .
0000
SYSTEM
0000
1 .............
0000
SYSTEM
0000
1 .............
1111
1111
1 .............
2222
2222
1 .............
3333
3333
1 .............
4444
4444
1 .............
5555
5555
1 .............
6666
6666
1 .............
7777
7777
1 .............
FREQ-POWER
0000
j. Set the test set FUNCTION control to SELF
noted in d above. The AN/APM-123 REJECT
TEST. The ACCEPT indicator should light.
indicator should light. If it is not lit, proceed with
g below.
7.1-11. Reply Evaluator Test
f. Adjust the AN/TPM-25A SUB PULSE
POS VARY control in the positive (+) direction
a. Perform the initial setup procedures given in
until the ME-26B/U voltage. indication is 80% of
also be used in these procedures.
that noted in d above. The test set ACCEPT
b. Set the ME-26B/U SELECTOR switch to
indicator should light. If it is not lighted, proceed
(+) and the RANGE switch to 10V. Connect the
with g below.
g. Adjust the AN/TPM-25A SUB PULSE
dc probe to test point A12TP2 (module A12) and
POS VARY control in the negative () direction
common lead to test point A13TP2 (module A13).
until the ME-26B/U voltage indication is 65% of
c. Adjust the ME-26B/U ZERO control to zero
that noted in d above.
its indication.
h. Adjust control A12R19 until the test set
d. Set the AN/TPM-25A SIF REPLY CODE
switches to 7767. Note the ME-26B/U voltage
ACCEPT and REJECT indicators glow alter-
indication.
nately.
e. Adjust the AN/TPM-25A SUB PULSE
i. Adjust the AN/TPM-25A SUB PULSE
POS SELECT switch to VARY and adjust
VARY POS control to the center (0) position, and
VARY control in the negative() direction until
repeat the procedrues in c through f above.
the ME-26B/U voltage indication is 50% of that
change 5
7.1-6
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