C8, TM 9-2350-230-12
TABLE 84. TROUBLESHOOTING - CONTINUED
Malfunction
Probable cause
Corrective action
MISSILE SUBSYSTEM -
Continued
120. 11. (System self-test
b.
Modulator defective
b. Replace modulator. Repeat
XMTR lamp
test. If problem is not
glows at comple-
corrected, request sup-
tion of test. -
porting maintenance.
Continued
120.12. ( System self-test)
a.
Vehicle input circuit defec-
a.
Disconnect cable 7J2 from the
TRACKER and
tive
test checkout panel and
SIG. DATA
repeat system self-test.
CONV lamps
Refer table 2-12. If SIG
glow at comple-
DATA CONV and TRACKER
tion of test
lamps do not glow, the
trouble is in the vehicle
input circuit (relay box,
etc. ).
b. In battery limit switch out of
b. Adjust or replace in battery
adjustment or defective
limit switch. Refer
figure 11-12. Repeat test.
If problem is not corrected
request supporting main-
tenance.
120. 13. (System self-test)
a.
Transmitter door not open
a. Check that transmitter door
Gunner's ready
lever is pushed in and
lamp does not
locked.
light.
b. Transmitter door switch
b.
Check switch for proper
defective out of adjustment
operation. Adjust or
replace (figure 10-21,
c.
Breech not fully closed
c. Open and reclose breech to
close breech limit switch.
d. Gun launcher not in battery
d. In battery limit switch out of
adjustment. Adjust or
replace. Refer figure 11-2
e. Recoil mechanism not correct
e. Increase or decrease pres-
pressure
sure as required (see fig.
f. Loader's safe/ready switch in
f. Check switch position and
safe position or is defective
place in ready position.
g. Fire control selector switch
g. Put fire control switch in
not in missile position
missile position.
NOTE. Gunner's and
loader's ready lamps also
lights in conventional position
on selector switch.
8-38.7
