IBM MT 2632 manual Contents

Contents

Introduction	.	1
Important service information	.	1
Strategy for replacing FRUs	.	1
How to use error messages	.	2
Diskette compatibility matrix	.	2
Safety notices: multilingual translations	.	3
Safety information	.	12
General safety	.	12
Electrical safety	.	13
Safety inspection guide	.	14
Handling electrostatic discharge-sensitive devices		15
Grounding requirements	.	16
Laser compliance statement	.	16

General descriptions . . . .	. .	.	.	.	.	19
Read this first	. .	.	.	.	.	19
What to do first:	. .	.	.	.	.	19
Related service information . . .	. .	.	.	.	.	21
Service Web site	. .	.	.	.	.	21
Using Recovery CD . . . .	. .	.	.	.	.	21
Passwords . . . . . . . . . . . . . 22
Power management . . . .	. .	.	.	.	.	24
Checkout guide	. .	.	.	.	.	27
Testing the computer . . . .	. .	.	.	.	.	27
Detecting system information with PC-Doctor. . . 29
Power system checkout . . .	. .	.	.	.	.	29

ThinkPad A21e		.	33
Product overview		.	35
Specifications		.	35
Status indicators		.	36
FRU Tests		.	38
Fn key combinations		.	40
Symptom-to-FRU index		.	41
Numeric error codes		.	41
Error messages		.	44
Beep symptoms		.	45
No beep symptoms		.	45
LCD-related symptoms		.	46
Intermittent problems		.	46
Undetermined problems		.	47
FRU replacement notices		.	47
Screw notices		.	47
Retaining serial numbers		.	48
Removing and replacing a FRU		.	50
1010	Battery pack	.	51
1020	DIMM	.	52
1030	Mini PCI adapter	.	53
1040	Backup battery	.	55
1050	Hard-disk drive	.	56

iii