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CHAPTER 3 System Messages
3-D: Lock-Up Failure (Permanent)
At the periodic interval, the CPU sends diagnosis data to the Port Microprocessor (PM) on LC/TRK cards in
order to monitor the PM. If the CPU cannot receive the return data within a predetermined period of time, the
system displays this data. When the failure is detected more than 15 times per hour, the failure is judged as
permanent.
Faulty Circuit Card Location
Reference: See Chapter 5 Control System Fault - Fault Occurs Intermittently on ACT side for the repair
procedure.
Default Alarm Default Grade Grade Modified Lamp Modified
MN 3
1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b7 b6 b5 b4 b3 b2 b1 b0
1
b0-b4: Group
b5-b6: Unit (0-3)
b7: Module Group
0/1 = Even-numbered MG/Odd-numbered MG
1