Toshiba Satellite U900 Maintenance Manual page 34

2 Troubleshooting Procedures
Chapter 2 Contents
2.1 Troubleshooting Introduction................................................................ 3
Troubleshooting Flowchart .....................................................................4
2.2
Power Supply Troubleshooting ................................................................9
2.3
2.4 Display Troubleshooting ...........................................................................13
2.5 Keyboard Troubleshooting ........................................................................16
2.6 External USB Devices Troubleshooting......................................................18
2.7 TouchPad Troubleshooting.....................................................................20
2.8 Speaker Troubleshooting.......................................................................22
2.9 Wireless LAN Troubleshooting...... ...........................................................................24
Camera Troubleshooting........................................................................26
2.10
2.11 Bluetooth Troubleshooting..................................................................... 28
Bridge Media slot Troubleshooting...........................................................30
2.12
HDD/SSD/HDD+SSD （RAID mode） Troubleshooting...............................32
2.13
HDMI Troubleshooting .......................................................................34
2.14
MIC Troubleshooting ......................................................................... 36
2.15
USB3.0&USB2.0 Troubleshooting ..........................................................38
2.16
2.17 Sleep & charge Troubleshooting..............................................................40
LAN Troubleshooting...........................................................................42
2.18
2.19 Battery Troubleshooting.........................................................................44
LED Troubleshooting .........................................................................46
2.20
FAN Troubleshooting .........................................................................48
2.21
Satellite U900/U940/U945 Series Maintenance Manual
1