IBM X121E manual Safety information

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Chapter 1. Safety information 15

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Contents ThinkPad X121e Hardware Maintenance ManualFirst Edition July Copyright Lenovo Contents Locations About this manual ThinkPad X121eIii Iv Hardware Maintenance Manual General safety Safety informationElectrical safety Safety inspection guide Grounding requirements Safety notices multilingual translationsSafety 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 Before replacing parts Important service informationStrategy for replacing FRUs Select Downloads & DriversDynamic Configure To Order CTO How to use error messageStrategy for replacing a hard disk drive Important notice for replacing a system boardUsing PEW FRU identification for CTO, CMV, and GAV productsGeneral Announce Variant GAV Hardware Maintenance Manual What to do first General checkoutDiagnostics using PC-Doctor for DOS Following are not covered under warrantyCheckout guide Testing the computer Lenovo ThinkVantage Toolbox Diagnostics Interactive TestsHardware Info UtilityApplicable test FRU testsChecking the ac power adapter Power system checkoutInteractive Tests Mouse Pin Voltage V dcChecking the battery pack Checking operational chargingTerminal Voltage V dc Wire Voltage V dc Checking the backup batteryRestoring the factory contents by using Recovery Disc Set Related service informationPasswords Power-on passwordHard disk password How to remove the power-on password Supervisor passwordHow to remove the hard-disk password Select Power-On PasswordPower management Screen blank modeSleep standby mode Symptom-to-FRU index Hibernation modeNumeric error codes Error messages Beep symptomsNo-beep symptoms Intermittent problems LCD-related symptomsReseat the LCD connectors See important note for LCD-related symptomsUndetermined problems Hardware Maintenance Manual Indicator Meaning Status indicatorsHardware Maintenance Manual Speaker volume down keys Fn key combinationsKey combination Description For Windows Vista and Windows XP Key combination Description For WindowsScrew notices FRU replacement noticesExternal CRU statement to customers Plastic to plasticRetaining serial numbers Restoring the serial number of the system unitSelect 2. Read S/N data from Eeprom Reading or writing the ECA information Retaining the UuidMTM on the rear label Product ID on the rear labelHardware Maintenance Manual Before servicing ThinkPad X121e models Removing and replacing a FRUImportant notice for replacing a battery pack Battery packBottom slot cover Removal steps of memory modules Memory modulesHard disk drive or solid state drive assembly Step Screw quantity Color Torque PCI Express Mini Card for wireless LANRemoval steps of PCI Express Mini Card for wireless LAN Removal steps of PCI Express Mini Card for wireless WAN PCI Express Mini Card for wireless WANKeyboard 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 Important notices for handling the system board System board assembly, fan assembly, and backup batteryStep 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 LCD unit When installingM2.5 × 5 mm, wafer-head, nylon-coated Black 392 Nm Kgfcm Step Screw cap Screw quantity Color Torque LCD bezel assemblyRemoval steps of integrated camera Integrated cameraLCD panel, LCD cable, and hinges Removal steps of hinges Removing and replacing a FRU Hardware Maintenance Manual Front view LocationsBottom view Rear viewExternal CRU statement to customers Parts listOverall CRU FRU Overall FRU noCRU CRU CRU CRU CRU CRU LCD FRUs No. FRU OverallFRU no. CRU ID FRU LCD FRU LCD FRU LCD Language FRU no Miscellaneous parts Ac power adaptersCountry or region FRU no Power cordsRecovery discs Windows XP Professional 32-bit DVDs Windows Vista Business 32-bit DVDsLanguage Windows 7 Home Premium 32-bit DVDs Windows 7 Home Basic 32-bit DVDsWindows 7 Professional 32-bit DVDs Windows 7 Home Premium 64-bit DVDs3051-CTO, 52x, 5Ax, 5Bx, 5Dx, 5Ex 3053-CTO 3055-CTO Windows 7 Professional 64-bit DVDsWindows 7 Ultimate 64-bit DVDs Windows 7 Ultimate 32-bit DVDsWindows 7 Starter 32-bit DVDs US English 04T1876Tool Common service tools103 Appendix A. NoticesTrademarks Electronic emissions noticesPage 0A96013