Table Of Contents - IBM ThinkPad T21 Hardware Maintenance Manual

Contents
About this manual
Introduction
Important service information .
Strategy for replacing FRUs .
How to use error messages .
Diskette compatibility matrix .
Safety notices: multilingual translations .
Safety information.
General safety .
Electrical safety
Safety inspection guide .
Handling devices that are sensitive to electorostatic
discharge
Grounding requirements .
Laser compliance statement.
General descriptions
Read this first .
What to do first
Related service information .
Service web site .
Restoring the preloaded system
Passwords .
Power management .
Checkout guide
Testing the computer .
Detecting system information with PC-Doctor.
Power system checkout .
ThinkPad T20, T21, T22 and T23 series.
Product overview .
Specifications .
Status indicators .
FRU Tests .
Fn key combinations .
Symptom-to-FRU index .
Numeric error codes .
Error messages
Beep symptoms .
No-beep symptoms .
LCD-related symptoms .
Intermittent problems .
Undetermined problems .
FRU replacement notices
Screw notices .
Retaining serial numbers.
Removing and replacing a FRU.
1010 Battery pack.
1020 Backup battery .
© Copyright IBM Corp. 2002
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