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[CONFIDENTIAL]
Qosmio X300 Maintenance Manual
Table of Contents
Chapter 1 Hardware Overview
1.1 Features .............................................................................Error! Bookmark not defined.
1.2 2.5-inch HDD..................................................................Error! Bookmark not defined.1
1.3 DVD Super Multi (+-R Double Layer)...........................Error! Bookmark not defined.3
1.4 Power Supply ...................................................................................................................vi4
1.5 Batteries............................................................................................................................vi6
1.5.1 Main Battery………………………………………………………………… vi6
1.5.2 Battery Charing Control …………………………………………………… vi6
1.5.3 RTC battery…………………………………………………………………..vi7
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting Introduction...........................................................................................2-3
2.2 Troubleshooting Flowchart ............................................2-Error! Bookmark not defined.
2.3 Power Supply Troubleshooting........................................................................................2-9
2.4 Display Troubleshooting...................................……….2-Error! Bookmark not defined.
2.5 Keyboard Troubleshooting.............................................................................................2-17
2.6 External USB Devices Troubleshooting ........................................................................2-19
2.7 TV-Out Failure Troubleshooting ...................................................................................2-21
2.8 TouchPad Troubleshooting ............................................................................................2-23
2.9 Speaker Troubleshooting................................................................................................2-25
2.10 Optical drive troubleshooting………………………………………………………….2-27
2.11 Modem Troubleshooting................................................................................................2-30
2.12 Express card Troubleshooting........................................................................................2-32
2.13 IEEE 1394 Troubleshooting...........................................................................................2-34
2.14 Wireless LAN Troubleshooting .....................................................................................2-36
2.15 Camera troubleshooting………………………………………………………………..2-38
2.16 Bluetooth Troubleshooting……………………………………………………………..2-
40
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