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[CONFIDENTIAL]
NB300 SERIES MAINTENANCE MANUAL
Table of Contents
Chapter 1
1.1 Features............................................................................................................................ 1-1
1.2 2.5-inch HDD................................................................................................................... 1-9
1.3 Power Supply ................................................................................................................ 1-10
1.4 Batteries ......................................................................................................................... 1-12
1.4.1 Main Battery .................................................................................................................. 1-12
1.4.2 Battery Charging Control .............................................................................................. 1-12
1.4.3 RTC Battery................................................................................................................... 1-13
Chapter 2
2.1 Troubleshooting Introduction ..............................................................................................3
2.2 Troubleshooting Flowchart..................................................................................................3
2.3 Power Supply Troubleshooting............................................................................................9
2.4 Display Troubleshooting....................................................................................................14
2.5 Keyboard Troubleshooting ................................................................................................17
2.6 External USB Devices Troubleshooting............................................................................19
2.7 TouchPad Troubleshooting.................................................................................................21
2.8 Speaker Troubleshooting ....................................................................................................23
2.9 Wireless LAN Troubleshooting .........................................................................................25
2.10 Camera troubleshooting......................................................................................................27
2.11 Bluetooth Troubleshooting .................................................................................................29
2.12 2 in 1 card Troubleshooting................................................................................................31
2-13 HDD/SSD troubleshooting process....................................................................................33
2-14 CRT failure troubleshooting process .................................................................................35
2-15 LAN troubleshooting process………………………….....................……………………37
2-16 MIC troubleshooting process ………………………… ....................……………………39
2-17 3D sensor troubleshooting process……………………….............……………………….41
2-18 3G troubleshooting process……………………………… .................……………………43