TM 1-1520-238-T-6
9–681
9–353. EMERG PWR INDICATOR – IS NOT LIGHTED WITH PRESS TO TEST INDICATOR
9–353
PRESSED
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
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Electrical power
distribution box cover
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. Press and hold PRESS TO TEST indicator and
check for 28 VDC at (A402)J2-Z.
Is voltage present?
YES
Go to step 2.
NO
Replace multi-channel dimming
controller (TM 1-1520-238-23).
2. Check for open between:
P748-Z and P175-15,
P748-Y and P175-14.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–333.
NO
Replace pilot EMERG PWR
CHK OVSP TEST panel
(TM 1-1520-238-23).
END OF TASK
