TM 1-1520-238-T-5
8–185
8–103. PILOT BAROMETRIC ALTIMETER INTERNAL VIBRATOR – IS NOT HEARD
8–103
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer (2)
References:
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Nontransparent
barrier removed
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. Check for 28 VDC at P382–P.
Is voltage present?
YES
Go to step 4.
NO
Go to step 2.
2. Check for open between
P382–P and P468–B3.
Does open exist?
YES
Repair open wire.
Go to paragraph 8–91.
NO
Go to step 3.
3. Check for open between (A326):
J17–B3 and J16–A7.
Does open exist?
YES
Repair open wire between
(A326):
J17–B3 and TB1–13–K,
TB1–13–L and J16–A7.
Go to paragraph 8–91.
NO
Repair open wire between
P480–A7 and P750 SP2.
Go to paragraph 8–91.
4. Check for open between
P382–M and ground.
Does open exist?
YES
Repair open wire.
Go to paragraph 8–91.
NO
Replace pilot barometer
altimeter (TM 1-1520-238-23).
END OF TASK
