2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-18 [CONFIDENTIAL] PORTEGE A600 Maintenance Manual (960-710)
2.4 System Board Troubleshooting This section describes how to determine if the system board is malfunctioning or not. 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: Debugging Port Check
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check