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Page Title:
NONE OF THE CREW STATION INDICATOR LAMPS ARE ON. |
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 TM 9-6920-737-10
TROUBLESHOOTING (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Check IOS Power Panel ISU/CR/ASU AC ON indicator lamps.
a. If AC ON indicators are off, set keyswitches to ON.
b. If AC ON indicator lamp does not come on when keyswitch is ON, notify
Organizational Maintenance.
6.
NONE OF THE CREW STATION INDICATOR LAMPS ARE ON.
Step 1.
Check IOS Power Panel CREW STATION DC POWER SUPPLIES ON indicator lamps.
a. If one or more CREW STATION DC POWER SUPPLIES ON indicator lamps are ON,
notify Organizational Maintenance
b. If all of the CREW STATION DC POWER SUPPLIES ON indicator lamps are OFF,
go
to step 2.
Step 2.
Check IOS Power Panel AC ON indicator lamp.
a. If AC ON indicator lamp is OFF, set ON/OFF circuit breaker to ON. If AC ON
indicator does not come ON, notify Organizational Maintenance.
b. If AC ON indicator lamp is on, go to step 3.
Step 3.
Check Crew Station Power Panel AC ON indicator in front of Crew Station.
a. If Crew Compartment Power Panel AC ON indicator lamp is OFF, set toggle switch
to ON.
b. If AC ON indicator lamp does not turn on, notify Organizational Maintenance.
7.
DISPLAY TERMINAL DOES NOT RESPOND TO KEYBOARD COMMANDS.
Step 1.
Check that KBD LOCKED indicator above keyboard is on.
a. If KBD LOCKED Indicator is off and ON-LINE indicator is on, notify Organizational
Maintenance.
Change 2 3-4
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