C8, TM 9-2350-230-12
TABLE 8-4. TROUBLESHOOTING - CONTINUED
Malfunction
Probable cause
Corrective action
MISSILE SUBSYSTEM -
Continued
120. 9. (System self-test
c.
Tracker defective
c. Replace tracker. Perform
SIG DATA CONV
tracker alignment. Refer
glows at com-
pletion of test. -
Continued
d.
Signal data converter
d.
Replace signal data converter,
defective
Repeat test. If problem is
not corrected, request
supporting maintenance.
120. 10. (System self-test
a.
Modulator defective
a. Replace modulator. Repeat
MOD lamp glows
test.
at completion of
test
b. Transmitter defective
test. If problem is not
corrected, request sup-
porting maintenance.
NOTE. Whenever trans-
mitter is replaced, perform
transmitter alignment test
request supporting mainten-
beam pattern test.
120. 11. (System self-test
a. Transmitter defective
XMTR lamp
test.
glows at comple-
tion of test
NOTE. Before replacing
transmitter, perform trans-
mitter test. If transmitter
switch on test checkout panel
will not remain on (up) for
15 seconds, replace trans-
mitter. If switch remains on
(up) for 15 seconds, replace
modulator.
CAUTION: Transmitter
switch should not remain on
longer than one minute
NOTE. Whenever trans-
mitter is replaced, perform
transmitter alignment test
request supporting mainten-
beam pattern test.
8-38.6