
Contents 9
Replacing the System Battery . . . . . . . . . . . 100
Control Panel Assembly
. . . . . . . . . . . . . . . . . 102
Removing the Control Panel Assembly
. . . . . . . 102
Installing the Control Panel Assembly
. . . . . . . 104
System Board
. . . . . . . . . . . . . . . . . . . . . . 104
Removing the System Board
. . . . . . . . . . . . 104
Installing the System Board
. . . . . . . . . . . . 106
4 Troubleshooting Your System . . . . . . . . 109
Safety First—For You and Your System . . . . . . . . . 109
Troubleshooting System Startup Failure
. . . . . . . . 109
Troubleshooting External Connections
. . . . . . . . . 109
Troubleshooting the Video Subsystem
. . . . . . . . . 110
Troubleshooting a USB Device
. . . . . . . . . . . . . 110
Troubleshooting a Serial I/O Device
. . . . . . . . . . 111
Troubleshooting a NIC
. . . . . . . . . . . . . . . . . . 111
Troubleshooting a Wet System
. . . . . . . . . . . . . 112
Troubleshooting a Damaged System
. . . . . . . . . . 113
Troubleshooting the System Battery
. . . . . . . . . . . 114
Troubleshooting Power Supply
. . . . . . . . . . . . . 115
Troubleshooting System Cooling Problems
. . . . . . . 115
Troubleshooting a Fan
. . . . . . . . . . . . . . . . . . 116
Troubleshooting System Memory
. . . . . . . . . . . . 116
book.book Page 9 Wednesday, August 12, 2009 4:51 PM