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No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
990
CTL
D
Software error 1
The software performs an unexpected function and the program cannot
continue.
 Software defective, re-boot
991
CTL
C
Software error 2
The software performs an unexpected function. However, unlike
SC990, recovery processing allows the program to continue.
 Software defective, re-boot
In order to get more details about SC990 and SC991:
1) Execute SP7403 or print an SMC Report (SP5990) to read the history of the 10 most recent
logged errors.
2) If you press the zero key on the operation panel with the SP selection menu displayed, you will
see detailed information about the recently logged SC990 or SC991, including the software file
name, line number, and so on.
 1) is the recommended method, because another SC could write over the information for
the previous SC.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
992
CTL
D
Undefined error
Defective software program
 An error undetectable by any other SC code occurred
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