Hardware Maintenance Manual | IBM X121E guide

Table 32. Removal steps of Wireless LAN antenna assembly, wireless WAN antenna assembly, and LCD rear cover assembly (continued)

a

b

: Wireless LAN AUX antenna (black) and wireless WAN AUX antenna (blue)

b : Wireless WAN MAIN antenna (orange) and wireless LAN MAIN antenna (gray)

Note: Some models might have a third white cable for wireless LAN.

78Hardware Maintenance Manual

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IBM X121E manual Hardware Maintenance Manual

Contents

Hardware Maintenance Manual ThinkPad X121e First Edition July Copyright Lenovo Contents Locations About this manual ThinkPad X121eIii 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 partsStrategy for replacing FRUs Select Downloads & Drivers How to use error message Dynamic Configure To Order CTOStrategy for replacing a hard disk drive Important notice for replacing a system board Using PEW FRU identification for CTO, CMV, and GAV productsGeneral Announce Variant GAV Hardware Maintenance Manual General checkout What to do first Diagnostics using PC-Doctor for DOS Following are not covered under warrantyCheckout guide Testing the computer Diagnostics Interactive Tests Lenovo ThinkVantage ToolboxHardware Info Utility FRU tests Applicable test Power system checkout Checking the ac power adapterInteractive Tests Mouse Pin Voltage V dc Checking the battery pack Checking operational chargingTerminal Voltage V dc Checking the backup battery Wire Voltage V dc Related service information Restoring the factory contents by using Recovery Disc Set Passwords Power-on passwordHard disk password Supervisor password How to remove the power-on passwordHow to remove the hard-disk password Select Power-On Password Power management Screen blank modeSleep standby mode Hibernation mode Symptom-to-FRU index Numeric error codes Error messages Beep symptomsNo-beep symptoms LCD-related symptoms Intermittent problemsReseat the LCD connectors See important note for LCD-related symptoms Undetermined problems Hardware Maintenance Manual Status indicators Indicator Meaning Hardware Maintenance Manual Speaker volume down keys Fn key combinationsKey combination Description Key combination Description For Windows For Windows Vista and Windows XP FRU replacement notices Screw noticesExternal CRU statement to customers Plastic to plastic Retaining serial numbers Restoring the serial number of the system unitSelect 2. Read S/N data from Eeprom Retaining the Uuid Reading or writing the ECA informationMTM 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 LCD FRUs No. FRU OverallFRU no. CRU ID FRU LCD FRU LCD FRU LCD Language FRU no Ac power adapters Miscellaneous parts Power cords Country or region FRU no Recovery discs Windows XP Professional 32-bit DVDs Windows Vista Business 32-bit DVDsLanguage 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 DVDsWindows 7 Starter 32-bit DVDs US English 04T1876 Common service tools Tool Appendix A. Notices 103 Electronic emissions notices TrademarksPage 0A96013