2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-16 PORTEGE A200 Maintenance Manual (960-499)

2.4 System Board Troubleshooting

This section describes how to determine if the system board is defective. 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: Debug port Check
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check