IBM X121E manual Contents

Contents

About this manual. . . . . . . . . . . iii

Chapter 1. Safety information . . . . . 1

General safety . . . . . . . . . . . . . . . . 1 Electrical safety . . . . . . . . . . . . . . . 2 Safety inspection guide . . . . . . . . . . . . 3

Handling devices that are sensitive to electrostatic discharge. . . . . . . . . . . . . . . . . . 3

Grounding requirements . . . . . . . . . . . . 4 Safety notices (multilingual translations) . . . . . . 4

Chapter 2. Important service
information	19
Strategy for replacing FRUs	19
Strategy for replacing a hard disk drive . . .	20
Important notice for replacing a system
board	20
How to use error message	20
Strategy for replacing FRUs for CTO, CMV, and
GAV	20
Product definition	20
FRU identification for CTO, CMV, and GAV
products	21

Chapter 3. General checkout	23
What to do first	23
Checkout guide	24
Diagnostics using PC-Doctor for DOS. . . .	24
Lenovo ThinkVantage Toolbox	26
FRU tests	27
Power system checkout	28
Checking the ac power adapter	28
Checking operational charging	29
Checking the battery pack	29
Checking the backup battery	30
Chapter 4. Related service
information	31
Restoring the factory contents by using Recovery
Disc Set	31
Passwords	32
Power-on password	32
Hard disk password	32
Supervisor password	33
How to remove the power-on password . . .	33
How to remove the hard-disk password . . .	33
Power management	34
Screen blank mode	34

Sleep (standby) mode	34
Hibernation mode	35
Symptom-to-FRU index	35
Numeric error codes	36
Error messages	37
Beep symptoms	37
No-beep symptoms	37
LCD-related symptoms	38
Intermittent problems	38
Undetermined problems	39

Chapter 5. Status indicators		41
Chapter 6. Fn key combinations . . .		43
Chapter 7. FRU replacement
notices		45
Screw notices		45
Retaining serial numbers		46
Restoring the serial number of the system
unit		46
Retaining the UUID		47
Reading or writing the ECA information . . .		47
Chapter 8. Removing and replacing a
FRU		49
Before servicing ThinkPad X121e models . . . .		49
1010	Battery pack	50
1020	Bottom slot cover	51
1030	Memory modules	52
1040	Hard disk drive or solid state drive
assembly		53
1050	PCI Express Mini Card for wireless LAN . .	54
1060	PCI Express Mini Card for wireless WAN . .	56
1070	Keyboard	57
1080	Power sub card and microphone	59
1090	Top case assembly	60
1100	Bluetooth daughter card	62
1110	Speaker assembly	63
1120	I/O board	64
1130 System board assembly, fan assembly, and
backup battery		65
1140	CRT board assembly (with cable)	67
1150	DC-in sub card and base cover assembly . .	68
2010	LCD unit	71
2020	LCD bezel assembly	73
2030	Integrated camera	74
2040	LCD panel, LCD cable, and hinges . . . .	75

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