Technical information

Technician’s Handbook
116
Flowchart 1: Getting Started
Yes
No
Flowchart 1:
Power subsystem is faulty.
Check the AC power source.
Are
all system LEDs on
the main control
cabinet out?
Start
Yes
No
No
Yes
Is the operating system on the faulty plane intact?
Check the faulty plane’s MC card numeric display:
NO: any other state (e.g., counting, alternating
between two numbers, on steady or off steady).
YES: slow, steady flashing (1 second flash rate).
Maintenance terminal
troubleshooting
Flowchart 6:
A
B
Is the
maintenance terminal
operating? (Ensure
maintenance terminal is
connected to the faulty
plane).