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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2.4 System Board Troubleshooting
This section describes how to determine if the system board and CPU are defective or not
functioning properly. Start with Procedure 1 and continue with the other procedures as
instructed.
The procedures described in this section are:
Procedure 1: Message Check
Procedure 2: Printer Port LED Check on Boot Mode
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check
2-16 TECRA M2 Maintenance Manual (960-468)