TM 1-1520-238-T-6
9–225
9–50.
EXT PWR INDICATOR – IS NOT LIGHTED
9–50
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 1-1520-238-23
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. On pilot master caution/warning panel, press
and hold PRESS TO TEST indicator.
Is EXT PWR indicator lighted?
YES
Go to step 2.
NO
Go to paragraph 9–333 to
troubleshoot the pilot
caution/warning system.
2. Check for open across wired terminals of
external power access door EXT PWR
receptacle door switch (S13).
Does open exist?
YES
Replace EXT PWR receptacle
door switch (S13)
(TM 1-1520-238-23).
NO
Go to step 3.
3. Check for open between wired terminal of EXT
PWR receptacle door switch S13 and P18-47.
Does open exist?
YES
Repair open wire between:
S13 and P430-A1,
P440-B6 and P18-47,
(A402)J6-A1 and
(A402)TB2-33-K,
(A402)J16-B6 and
(A402)TB2-33-J.
Go to paragraph 9–47.
NO
Repair open wire between S13
and GS661-A.
Go to paragraph 9–47.
END OF TASK
