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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 denition. . . . . . . . . . . . 20
FRU identication for CTO, CMV, and GAV
products . . . . . . . . . . . . . . . 21
Chapter 3. General checkout . . . . . 23
What to do rst . . . . . . . . . . . . . . 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
© Copyright Lenovo 2011
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