TM 1-1520-238-T-7
11395/(11396 blank)
11104. PILOT STAB POS INDICATOR DOES NOT INDICATE 25 2 WHEN RESET
11104
PUSHBUTTON IS PRESSED
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairers
Multimeter, Digital
AN/PSM-45
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, T290R and
T290L doors 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.
Detach:
P491 from (A323)J6,
P987 from (A637)J3.
Check for open between:
(A323)TB22D and (A323)J6A19,
P491A19 and P987F.
Does open exist?
YES
Repair open wire.
Go to paragraph 1188.
NO
Go to step 2.
2. Set multimeter to diode check.
Attach negative meter lead on wire end at
(A402)TB226/27P.
Check for continuity between (A402):
TB226/27N and TB226/27P.
Does continuity exist?
YES
Go to step 3.
NO
Repair open wire.
Go to paragraph 1188, or
replace (A402) diode
(TM 1-1520-238-23).
3. Detach P431 from (A402)J27.
Check for open between (402):
TB726/27N and J27A5.
Does open exist?
YES
Repair open wire.
Go to paragraph 1188.
NO
Go to step 4.
4. Detach P991 from (A638)J3. Check for open
between P431A5 and P991F.
Does open exist?
YES
Repair open wire.
Go to paragraph 1188.
NO
Replace STAB CONT UNIT 1
(A637) or
STAB CONT UNIT 2 (A638)
(TM 1-1520-238-23).
END OF TASK
Paragraph 11105 and all data on pages 11397 and 11398 deleted.
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