2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-16 [CONFIDENTIAL] TECRA M9 Maintenance Manual (960-631)
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