Lenovo ThinkPad R50e Series Hardware Maintenance 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 . . . . . .4
Safety information . . . . . . . . . . . .16
General safety . . . . . . . . . . . .16
Electrical safety . . . . . . . . . . .17
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 . . . . . . . . .27
Service Web site . . . . . . . . . . .27
Restoring the pre-installed system . . . . . .27
Passwords . . . . . . . . . . . . .28
Power management . . . . . . . . . .32
Checkout guide . . . . . . . . . . . .34
Testing the computer . . . . . . . . . .34
Detecting system information with PC-Doctor . . .37
Power system checkout . . . . . . . . .37
ThinkPad R50/R50p and R51 Series . . . . . .41
Product overview . . . . . . . . . . . .43
Specifications . . . . . . . . . . . .43
Status indicators . . . . . . . . . . .48
FRU tests . . . . . . . . . . . . .50
Fn key combinations . . . . . . . . . .52
Symptom-to-FRU index . . . . . . . . . .54
Numeric error codes . . . . . . . . . .54
Error messages . . . . . . . . . . .58
Beep symptoms . . . . . . . . . . .59
No-beep symptoms . . . . . . . . . .59
LCD-related symptoms . . . . . . . . .60
Intermittent problems . . . . . . . . . .61
Undetermined problems . . . . . . . . .61
FRU replacement notices . . . . . . . . .62
Screw notices . . . . . . . . . . . .62
Retaining serial numbers . . . . . . . . .63
Removing and replacing a FRU . . . . . . . .66
1010 Battery pack . . . . . . . . . . .67
1020 Ultrabay Enhanced device . . . . . .68
© Lenovo 2005. Portions © IBM Corp. 2005. iii

Lenovo ThinkPad R50e Series Specifications

General

Brand	Lenovo
Model	ThinkPad R50e Series
Category	Laptop
Language	English