TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
Table 4-2.
Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(continued)
43.
Check continuity
If no continuity,
replace wire no.
From
To
1S11B-C
J7-A
X53B20
X51A20
P7-24L
P12- T
X50A20
P7-24R
P12-U
X49A20
P12-V
P7-23L
P7-A
P12-W
X53A20
If no continuity, replace indicated wire.
a.
If all continuity checks good, reconnect harness connector P7
b.
to control panel J7. Replace GCU and connect harness
connector P12 to GCU. Perform operational check.
DC VOLTS METER READS 0 (DC POWER ON INDICATOR LIT).
44.
Step 1.
Check for voltage (+28 vdc) between + and - pins of dc output cable
connector. Shut down engine and disconnect battery.
a.
If voltage at output cable, go to step 3.
If no voltage at output cable, do step 2.
b.
Step 2.
Test dc contactor K2 (see malfunction 94).
a. Replace contactor if defective (paragraph 4-52).
b. If contactor tests good, check cable P3A4/0 between contactor
K2 and shunt R1 (see FO-5) for continuity. Replace cable if
defective.
c. Perform operational check.
Lower control panel (paragraph 4-24.a), and remove battery charger
Step 3.
access cover. Disconnect main harness connector P5 from control
panel connector J5. Check for continuity between the following
points (see FO-5):
