TM 1-1520-238-T-7
Change 3
11–337
11–86. AIR DATA PROCESSOR NO–GO AFT AVIONICS BAY – APPEARS ON HOD
11–86
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 9-1230-476-20-1
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
R295 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. Check for open between:
P686–28 and P944–6,
P686–29 and P944–5.
Does open exist?
YES
Repair open wire.
Go to paragraph 11–23.
NO
Go to step 2.
2. Detach P686. Check for short between:
P944–6 and ground,
P944–5 and ground.
Does short exist?
YES
Replace air data processor
(TM 9-1230-476-20-1).
NO
(ACA) Replace DASEC
(TM 1-1520-238-23).
(ACB) Go to step 3.
3. (ACB) Attach P686. Detach filter adapter A707,
check for open between:
A707–28 and P944–6,
A707–29 and P944–5.
Does open exist?
YES
Replace filter adapter
(TM 1-1520-238-23).
NO
Go to step 4.
4. (ACB) Check for short between:
A707–28 and ground,
A707–29 and ground.
Does short exist?
YES
Replace filter adapter
(TM 1-1520-238-23).
NO
Replace DASEC
(TM 1-1520-238-23).
END OF TASK
