TM 1-1520-238-T-6
9–714
9–370. PRESS TO TEST INDICATOR – IS NOT LIGHTED
9–370
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 CPG INTR LT panel, set INST control to
BRT. Check for 5 VDC at J166-B3.
Is voltage present?
YES
Replace CPG master
caution/warning panel
(TM 1-1520-238-23).
NO
Go to step 2.
2. Check for 28 VDC at P31-d and P31-e.
Is voltage present?
YES
Repair open between:
P31-W and J166-A20,
P31-V and J166-B3.
Go to paragraph 9–364.
NO
Go to step 4.
3. Check for 5 VDC at (A157)J2-V.
Is voltage present?
YES
Go to step 5.
NO
Go to step 6.
4. Check for open between:
P31-g and ground,
P31-h and ground.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–364.
NO
Replace CPG caution/warning
panel (TM 1-1520-238-23).
5. Check for 28 VDC at (A77)J1-4.
Is voltage present?
YES
Repair open wire between wire
end:
(A326)TB1-12-H and P31-d,
(A326)TB1-12-J and P31-e,
(A326)TB1-12-M and P766-4.
Go to paragraph 9–364.
NO
Go to paragraph 9–304 to
troubleshoot dc emergency bus
– CPG station.
END OF TASK
