Hardware Maintenance Manual
ThinkPad X121e
 First Edition July Copyright Lenovo
 Contents
 Locations
 ThinkPad X121e
About this manual
Iii
 Iv Hardware Maintenance Manual
 Safety information
General safety
 Electrical safety
 Safety inspection guide
 Safety notices multilingual translations
Grounding requirements
 Safety information
 Hardware Maintenance Manual
 Perigo
 Perigo
 Safety information
 Vorsicht
 Vorsicht
 Hardware Maintenance Manual
 Safety information
 Hardware Maintenance Manual
 Safety information
 Hardware Maintenance Manual
 Safety information
 Hardware Maintenance Manual
 Important service information
Before replacing parts
Strategy for replacing FRUs
Select Downloads & Drivers
 How to use error message
Dynamic Configure To Order CTO
Strategy for replacing a hard disk drive
Important notice for replacing a system board
 FRU identification for CTO, CMV, and GAV products
Using PEW
General Announce Variant GAV
 Hardware Maintenance Manual
 General checkout
What to do first
 Following are not covered under warranty
Diagnostics using PC-Doctor for DOS
Checkout guide
 Testing the computer
 Diagnostics Interactive Tests
Lenovo ThinkVantage Toolbox
Hardware Info
Utility
 FRU tests
Applicable test
 Power system checkout
Checking the ac power adapter
Interactive Tests Mouse
Pin Voltage V dc
 Checking operational charging
Checking the battery pack
Terminal Voltage V dc
 Checking the backup battery
Wire Voltage V dc
 Related service information
Restoring the factory contents by using Recovery Disc Set
 Power-on password
Passwords
Hard disk password
 Supervisor password
How to remove the power-on password
How to remove the hard-disk password
Select Power-On Password
 Screen blank mode
Power management
Sleep standby mode
 Hibernation mode
Symptom-to-FRU index
 Numeric error codes
 Beep symptoms
Error messages
No-beep symptoms
 LCD-related symptoms
Intermittent problems
Reseat the LCD connectors
See important note for LCD-related symptoms
 Undetermined problems
 Hardware Maintenance Manual
 Status indicators
Indicator Meaning
 Hardware Maintenance Manual
 Fn key combinations
Speaker volume down keys
Key combination Description
 Key combination Description For Windows
For Windows Vista and Windows XP
 FRU replacement notices
Screw notices
External CRU statement to customers
Plastic to plastic
 Restoring the serial number of the system unit
Retaining serial numbers
Select 2. Read S/N data from Eeprom
 Retaining the Uuid
Reading or writing the ECA information
MTM on the rear label
Product ID on the rear label
 Hardware Maintenance Manual
 Removing and replacing a FRU
Before servicing ThinkPad X121e models
 Battery pack
Important notice for replacing a battery pack
 Bottom slot cover
 Memory modules
Removal steps of memory modules
 Hard disk drive or solid state drive assembly
 PCI Express Mini Card for wireless LAN
Step Screw quantity Color Torque
 Removal steps of PCI Express Mini Card for wireless LAN
 PCI Express Mini Card for wireless WAN
Removal steps of PCI Express Mini Card for wireless WAN
 Keyboard
 Removal steps of keyboard
 Power sub card and microphone
 Top case assembly
 Removal steps of top case assembly
 Bluetooth daughter card
 Speaker assembly
 1120 I/O board
 System board assembly, fan assembly, and backup battery
Important notices for handling the system board
 Step Screw quantity Color Torque
 CRT board assembly with cable
 DC-in sub card and base cover assembly
 Applying labels to the base cover
 Hardware Maintenance Manual
 When installing
LCD unit
 M2.5 × 5 mm, wafer-head, nylon-coated Black 392 Nm Kgfcm
 LCD bezel assembly
Step Screw cap Screw quantity Color Torque
 Integrated camera
Removal steps of integrated camera
 LCD panel, LCD cable, and hinges
 Removal steps of hinges
 Removing and replacing a FRU
 Hardware Maintenance Manual
 Locations
Front view
 Rear view
Bottom view
 Parts list
External CRU statement to customers
 Overall
 FRU Overall FRU no
CRU
 CRU
 CRU
 CRU
 CRU
 CRU
 CRU
 No. FRU Overall
LCD FRUs
FRU no. CRU ID
 FRU LCD
 FRU LCD
 FRU LCD
 Language FRU no
 Ac power adapters
Miscellaneous parts
 Power cords
Country or region FRU no
 Windows Vista Business 32-bit DVDs
Recovery discs Windows XP Professional 32-bit DVDs
Language
 Windows 7 Home Basic 32-bit DVDs
Windows 7 Home Premium 32-bit DVDs
 Windows 7 Home Premium 64-bit DVDs
Windows 7 Professional 32-bit DVDs
 Windows 7 Professional 64-bit DVDs
3051-CTO, 52x, 5Ax, 5Bx, 5Dx, 5Ex 3053-CTO 3055-CTO
 Windows 7 Ultimate 32-bit DVDs
Windows 7 Ultimate 64-bit DVDs
Windows 7 Starter 32-bit DVDs
US English 04T1876
 Common service tools
Tool
 Appendix A. Notices
103
 Electronic emissions notices
Trademarks
Page
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