Toshiba Satellite A50S Series - Table of Contents

2 Troubleshooting Procedures
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-iii
Chapter 2 Contents
2.1 Troubleshooting.........................................................................................................2-1
2.2 Troubleshooting Flowchart........................................................................................2-2
2.3 Power Supply Troubleshooting..................................................................................2-6
Procedure 1 Power Status Check ...............................................................2-6
Procedure 2 Error Code Check ..................................................................2-8
Procedure 3 Connection Check................................................................ 2-13
Procedure 4 Charging Check ...................................................................2-13
Procedure 5 Replacement Check .............................................................2-14
2.4 System Board Troubleshooting................................................................................2-15
Procedure 1 Message Check ....................................................................2-16
Procedure 2 Debug Port Check................................................................ 2-18
Procedure 3 Diagnostic Test Program Execution Check......................... 2-28
Procedure 4 Replacement Check .............................................................2-28
2.5 3.5” FDD Troubleshooting ......................................................................................2-29
Procedure 1 FDD Head Cleaning Check .................................................2-29
Procedure 2 Diagnostic Test Program Execution Check......................... 2-30
Procedure 3 Connector Check and Replacement Check..........................2-31
2.6 2.5” HDD Troubleshooting......................................................................................2-32
Procedure 1 Partition Check.....................................................................2-32
Procedure 2 Message Check ....................................................................2-33
Procedure 3 Format Check.......................................................................2-34
Procedure 4 Diagnostic Test Program Execution Check......................... 2-35
Procedure 5 Connector Check and Replacement Check..........................2-36
2.7 Keyboard Troubleshooting ......................................................................................2-37
Procedure 1 Diagnostic Test Program Execution Check......................... 2-37
Procedure 2 Connector Check and Replacement Check..........................2-37