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Contents
About this manual ..........v
Safety information ..........1
General safety ..............2
Electrical safety .............3
Safety inspection guide ...........5
Handling devices that are sensitive to electrostatic
discharge ...............6
Grounding requirements ..........6
Safety notices (multilingual translations) .....7
Laser compliance statement (multilingual
translations) ..............28
Important service information .....39
Strategy for replacing FRUs .........39
Strategy for replacing a hard disk drive ....40
Important notice for replacing a system board . . 40
How to use error message ........40
Strategy for replacing FRUs for CTO, CMV, and
GAV.................41
Product definition ...........41
FRU identification for CTO, CMV, and GAV
products ..............41
General checkout ..........43
What to do first .............44
Checkout guide .............45
Diagnostics using PC-Doctor for DOS ....45
Lenovo ThinkVantage Toolbox (Lenovo System
Toolbox) ..............48
PC-Doctor for Windows .........48
PC-Doctor for Rescue and Recovery .....49
FRU tests ..............50
Power system checkout ..........52
Checking the AC adapter .........52
Checking operational charging .......52
Checking the battery pack ........53
Checking the backup battery .......53
Related service information......55
Restoring the factory contents by using Product
Recovery discs .............55
Restoring the factory contents by using Recovery
Disc Set ...............56
Passwords...............57
Power-on password ..........57
Hard-disk password ..........57
Supervisor password ..........58
How to remove the power-on password ....58
How to remove the hard-disk password ....59
Power management ...........60
Screen blank mode ...........60
Sleep (Standby) mode ..........60
Hibernation mode ...........61
Symptom-to-FRU index ..........62
Numeric error codes ..........62
Error messages ............66
Beep symptoms ............67
No-beep symptoms...........67
LCD-related symptoms .........68
Intermittent problems ..........69
Undetermined problems .........69
Status indicators ..........71
Fn key combinations ........73
FRU replacement notices.......77
Screw notices ..............77
Retaining serial numbers ..........78
Restoring the serial number of the system unit 78
Retaining the UUID ..........78
Reading or writing the ECA information . . . 79
Removing and replacing a FRU ....81
Before servicing ThinkPad X301 .......82
1010 Battery pack ............83
1020 Optical drive or second battery or travel cover 84
1030 Solid state drive (SSD) or hard disk drive
(HDD) ................85
1040 DIMM ..............87
1050 PCI Express Mini Card for wireless LAN. . . 89
1060 Wireless USB adapter or Intel Turbo Memory
Minicard ...............92
1070 Keyboard .............95
1080 Backup battery ...........99
1090 PCI Express Mini Card for wireless WAN . . 100
1100 Palm rest or palm rest with fingerprint reader 102
1110 Bluetooth daughter card (BDC-2) .....104
1120 Keyboard bezel ...........105
1130 Audio FPC and audio sub card......108
1140 Speaker assembly ..........110
1150 LCD assembly ...........111
1160 VGA cable and DC-in connector .....114
1170 System board, fan, and base cover assembly 116
2010 LCD bezel assembly .........122
2020 LCD panel and LCD cable .......123
2030 Integrated camera ..........127
2040 Antenna assembly ..........128
2050 Hinge L and hinge R .........131
2060 LED sub card, LED cable and LCD cover
assembly ...............133
Locations .............135
Front view ..............135
Rear view ..............136
Bottom view..............136
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