TM 1-1520-238-T-6
9–688
Change 5
9–360. MA INDICATOR – IS NOT LIGHTED WITH PRESS TO TEST BUTTON PRESSED
9–360
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
TM 11-1520-238-23-1
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
L90 door opened
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 P717-10 and ground.
Does open exist?
YES
Repair open wire. Go to
paragraph 9–333.
NO
Go to step 2.
2. Press and hold press to test button and check
for 28 VDC.
Is voltage present?
YES
Replace radar warning display
(TM 11-1520-238-23-1).
NO
Go to step 3.
3. Check for open between P748-V and P717-7.
Does open exist?
YES
Repair open wire. Go to
paragraph 9–333.
NO
Go to step 4.
4. Check for short between:
P748-V and ground
P717-7 and ground
Does short exist?
YES
Repair shorted wire. Go to
paragraph 9–333.
NO
Replace multi-channel dimmer
controller
(TM 11-1520-238-23-1).
END OF TASK
Paragraph 9–361 and all data on page 9–689 deleted
