Troubleshooting Guide
Troubleshooting Charts
If your computer has an error, it often displays a message or an error
code, or a beep sounds when you power it on. Go through the charts
and look for your problem. If you find the problem, go to the page
indicated and do the specified action.
Troubleshooting Chart Page
Error codes or screen messages 109
No error codes or screen messages 112
Input problems 113
Suspend or hibernation problems 115
LCD problems 117
Indicator problems 118
Battery problems 118
CD-ROM drive problems 119
Infrared communication problems 120
Audio or telephony problems 121
Universal serial bus (USB) problems 121
Modem problems 122
PC Card problems 123
Printer problems 124
External display problems 125
Port replicator problems 127
Other option problems 128
Software problems 129
Other problems 130
108 ThinkPad 390X User's Reference
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