C8, TM 9-2350-230-12
TABLE 8-4. TROUBLESHOOTING - CONTINUED
Malfunction
Probable cause
Corrective action
MISSILE SUBSYSTEM -
Continued
120.4.
(Tracker alignment
NOTE. The EL and AZ
test) cannot null
adjustment may be so far out
meter using AZ or
of alignment that checksight
EL adjustment
source may not be seen by
screws, located on
tracker. It is possible to
telescope mount. -
observe the checksight source
Continued
in telescope and bring it near
center enough to get a meter
indication.
If meter still will not null,
replace telescope mount;
repeat test. If problem is
not corrected, request sup-
porting maintenance.
120. 5. Align lever does
a.
Fuse on telescope mount
a. Replace fuse on telescope
not reset when
defective
mount. Repeat test.
RESET switch on
test checkout panel
b.
Test checkout panel defective.
b.
Replace test checkout panel.
is activated
Repeat test.
c. Signal data converter
c. Replace signal data converter
defective
Repeat test.
d. Telescope mount defective
d. Replace telescope mount.
Repeat test. If problem is
not corrected, request
supporting maintenance.
120. 6. (System self- test)
Test checkout panel
Replace test checkout panel.
SYSTEM TEST
defective
Repeat test. If problem is
switch will not
not corrected, request
remain on (up)
supporting maintenance.
120. 7. (System self-test)
a.
Test checkout panel defective.
a. Replace test checkout panel.
CHECKOUT
Repeat test.
PANEL lamp glows
after initiation of
b.
Signal data converter
b. Replace signal data converter
system test
defective
Repeat test. If problem
is not corrected, request
supporting maintenance.
120. 8. (System self-test)
a.
Align lever not in right (up)
a. Place align lever in right (up)
TRACKER lamp
position
position. Repeat test.
glows at comple-
tion of test
b.
Tracker not properly aligned.
b. Perform tracker alignment.
test.
8-38.4