IBM ThinkPad R40 2681 User Manual

Contents
About this manual . . . . . . . . . . .1
Introduction . . . . . . . . . . . . .3
Important service information . . . . . . . . .3
Strategy for replacing FRUs . . . . . . . .3
How to use error messages . . . . . . . .4
Diskette compatibility matrix . . . . . . . . .4
Safety notices: multilingual translations . . . . . .5
Safety information . . . . . . . . . . . .17
General safety . . . . . . . . . . . .17
Electrical safety . . . . . . . . . . .18
Safety inspection guide . . . . . . . . .19
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . .20
Grounding requirements . . . . . . . . .21
Laser compliance statement . . . . . . . . .22
General descriptions . . . . . . . . . .25
Read this first . . . . . . . . . . . . .25
What to do first . . . . . . . . . . .25
Related service information . . . . . . . . .28
Service web site . . . . . . . . . . .28
Restoring the preloaded system . . . . . .28
Passwords . . . . . . . . . . . . .30
Power management . . . . . . . . . .33
Checkout guide . . . . . . . . . . . .36
Testing the computer . . . . . . . . . .36
Detecting system information with PC-Doctor . . .38
Power system checkout . . . . . . . . .39
ThinkPad R40 . . . . . . . . . . . . .43
Product overview . . . . . . . . . . . .45
Specifications . . . . . . . . . . . .45
Status indicators . . . . . . . . . . .48
FRU tests . . . . . . . . . . . . .50
Fn key combinations . . . . . . . . . .52
Symptom-to-FRU index . . . . . . . . . .53
Numeric error codes . . . . . . . . . .53
Error messages . . . . . . . . . . .56
Beep symptoms . . . . . . . . . . .57
No-beep symptoms . . . . . . . . . .57
LCD-related symptoms . . . . . . . . .58
Intermittent problems . . . . . . . . . .59
Undetermined problems . . . . . . . . .59
FRU replacement notices . . . . . . . . .60
Screw notices . . . . . . . . . . . .60
Retaining serial numbers . . . . . . . . .61
Removing and replacing a FRU . . . . . . . .63
1010 Battery pack . . . . . . . . . . .64
1020 Ultrabay Plus device . . . . . . . .65
© Copyright IBM Corp. 2004 iii

IBM ThinkPad R40 2681 Specifications

General

Brand	IBM
Model	ThinkPad R40 2681
Category	Laptop
Language	English