TM 1-1520-238-T-7
Change 5
11–387
11–99.
MAN STAB INDICATOR – DOE NOT REMAIN LIGHTED WHEN ND/NU SWITCH
11–99
IS RELEASED
1
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Extractor, Relay
CTJ-RO6
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
L325 door open
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
1. Open STAB MAN DC (A76)CB6 , STAB AUTO
DC (A76)CB3, STAB AUTO AC (A76)CB2, and
ENG WARN (A76)CB52 circuit breakers.
Check for open between (A329)XK1–3/4–D2
and wire ends at (A329)TB1–1/2–a.
Does open exist?
YES
Repair open wire.
Go to paragraph 11–88.
NO
Go to step 2.
2. Check for open between (A329)TB1–1/2–F and
(A329)TB1–3–B.
Does open exist?
YES
Repair open wire.
Go to paragraph 11–88.
NO
Go to step 3.
3. Set multimeter for diode check. Attach positive
meter lead on wire end at (A329)TB1–1/2–A.
Check for open between (A329)TB1–1/2–A and
(A329)TB1–1/2–F.
Does open exist?
YES
Replace terminal board
(A329)TB1–1/2
(TM 1-1520-238-23).
NO
Go to step 4.
4. Check for open between (A329)TB1–5–C and
(A329)XK1–3/4–D1.
Does open exist?
YES
Repair open wire.
Go to paragraph 11–88.
NO
Replace MAN SELECT relay
(A329)K1–3/4.
END OF TASK
