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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

Toshiba QOSMIO F20 User Manual

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