Toshiba QOSMIO F20

2 Troubleshooting Procedures
QOSMIO F20 Maintenance Manual (960-526) [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................................................................2-14
Procedure 4 Charging Check....................................................................2-14
Procedure 5 Replacement Check..............................................................2-15
2.4 System Board Troubleshooting................................................................................2-16
Procedure 1 Message Check ....................................................................2-17
Procedure 2 Debug Port Check ................................................................2-19
Procedure 3 Diagnostic Test Program Execution Check .........................2-36
Procedure 4 Replacement Check..............................................................2-36
2.5 USB FDD Troubleshooting .....................................................................................2-37
Procedure 1 FDD Head Cleaning Check..................................................2-37
Procedure 2 Diagnostic Test Program Execution Check .........................2-38
Procedure 3 Connector Check and Replacement Check..........................2-39
2.6 2.5” HDD Troubleshooting......................................................................................2-40
Procedure 1 Partition Check.....................................................................2-40
Procedure 2 Message Check ....................................................................2-41
Procedure 3 Format Check.......................................................................2-42
Procedure 4 Diagnostic Test Program Execution Check .........................2-43
Procedure 5 Connector Check and Replacement Check..........................2-44
2.7 Keyboard Troubleshooting ......................................................................................2-45
Procedure 1 Diagnostic Test Program Execution Check .........................2-45
Procedure 2 Connector Check and Replacement Check..........................2-45
2.8 Touch Pad Troubleshooting.....................................................................................2-46
Procedure 1 Diagnostic Test Program Execution Check .........................2-46
Procedure 2 Connector Check and Replacement Check..........................2-46