2.4 Main board Troubleshooting 2 Troubleshooting
Portege 2000 Maintenance Manual (960-333) 2-15
2.4 Main board Troubleshooting
This section describes how to determine if the main 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 (D port) Check on Boot Mode
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check
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