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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