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2 Troubleshooting Procedures

QOSMIO G50 Maintenance Manual (960-683) [CONFIDENTIAL] 2-iii

Chapter 2 Contents

2.1 Troubleshooting......................................................................................................... 2-1

2.2 Troubleshooting Flowchart........................................................................................ 2-3

2.3 Power Supply Troubleshooting..................................................................................2-8

Procedure 1 Power Status Check ............................................................... 2-8

Procedure 2 Error Code Check ................................................................2-10

Procedure 3 Connection Check................................................................ 2-16

Procedure 4 Charging Check ...................................................................2-16

Procedure 5 Replacement Check .............................................................2-17

2.4 System Board Troubleshooting................................................................................2-18

Procedure 1 Message Check .................................................................... 2-19

Procedure 2 Debugging Port Check.........................................................2-21

Procedure 3 Diagnostic Test Program Execution Check......................... 2-30

Procedure 4 Replacement Check .............................................................2-30

2.5 USB FDD Troubleshooting .....................................................................................2-31

Procedure 1 FDD Head Cleaning Check .................................................2-31

Procedure 2 Diagnostic Test Program Execution Check......................... 2-32

Procedure 3 Connector Check and Replacement Check.......................... 2-33

2.6 2.5” HDD Troubleshooting......................................................................................2-35

Procedure 1 Partition Check..................................................................... 2-35

Procedure 2 Message Check .................................................................... 2-36

Procedure 3 Format Check.......................................................................2-37

Procedure 4 Diagnostic Test Program Execution Check......................... 2-38

Procedure 5 Connector Check and Replacement Check.......................... 2-39

2.7 Keyboard Troubleshooting ......................................................................................2-40

Procedure 1 Diagnostic Test Program Execution Check......................... 2-40

Procedure 2 Connector Check and Replacement Check.......................... 2-41

2.8 Touch pad Troubleshooting.....................................................................................2-42

Procedure 1 Diagnostic Test Program Execution Check......................... 2-42

Procedure 2 Connector Check and Replacement Check.......................... 2-43

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