Lenovo X120E 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	17
Strategy for replacing FRUs	17
Strategy for replacing a hard disk drive . . .	18
Important notice for replacing a system
board	18
How to use error message	18
Strategy for replacing FRUs for CTO, CMV, and
GAV	18
Product definition	18
FRU identification for CTO, CMV, and GAV
products	19

Chapter 3. General checkout	21
What to do first	21
Checkout guide	22
Diagnostics using PC-Doctor for DOS. . . .	22
Lenovo ThinkVantage Toolbox	25
FRU tests	25
Power system checkout	26
Checking the ac adapter	27
Checking operational charging	27
Checking the battery pack	27
Checking the backup battery	28
Chapter 4. Related service
information	29
Restoring the factory contents by using Recovery
Disc Set	29
Passwords	30
Power-on password	30
Hard-disk password	30
Supervisor password	31
How to remove the power-on password . . .	31
How to remove the hard-disk password . . .	31
Power management	32
Screen blank mode	32

Sleep or standby mode	32
Hibernation mode	33
Symptom-to-FRU index	33
Numeric error codes	34
Error messages	36
No-beep symptoms	36
LCD-related symptoms	36
Intermittent problems	37
Undetermined problems	37

Chapter 5. Status indicators		39
Chapter 6. Fn key combinations . . .		41
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		46
Reading or writing the ECA information . . .		47
Chapter 8. Removing and replacing a
FRU		49
Before servicing ThinkPad X100e and ThinkPad
X120e		49
1010	Battery pack	50
1020	Bottom door	51
1030	Hard disk drive (HDD)	54
1040	DIMM	56
1050	PCI Express Mini Card for wireless LAN . .	57
1060	PCI Express Mini Card for wireless WAN . .	58
1070	Bluetooth daughter card (BDC-2)	60
1080	Keyboard	61
1090 Palm rest assembly, power-on board
assembly (with cable), and microphone		64
1100	CRT board assembly (with cable)	68
1110	Speaker assembly	69
1120	I/O board (for ThinkPad X120e)	70
1130 System board, fan assembly, and backup
battery		71
1140	LCD unit	77
1150	DC-in cable and base cover assembly . . .	79
2010	LCD bezel assembly	82
2020	Integrated camera	83
2030	LCD panel, hinges, and LCD cable . . . .	84
2090	Antenna kit and LCD rear cover assembly . .	86

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