Troubleshooting Procedures   
2-22 [CONFIDENTIAL] TECRA A11/S11/P11/Satellite Pro S500 Series Maintenance Manual (960-784) 
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