IBM X121E manual Safety information, General safety

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Chapter 1. Safety information

This chapter presents following safety information that you need to be familiar with before you service a ThinkPad Notebook.

“General safety” on page 1

“Electrical safety” on page 2

“Safety inspection guide” on page 3

“Handling devices that are sensitive to electrostatic discharge” on page 3

“Grounding requirements” on page 4

“Safety notices (multilingual translations)” on page 4

General safety

Follow these rules to ensure general safety:

Observe good housekeeping in the area of the machines during and after maintenance.

When lifting any heavy object:

1.Make sure that you can stand safely without slipping.

2.Distribute the weight of the object equally between your feet.

3.Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4.Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.

Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.

Before you start the machine, make sure that other service technicians and the customer's personnel are not in a hazardous position.

Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.

Keep your toolcase away from walk areas so that other people will not trip over it.

Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8 centimeters (3 inches) from the end.

Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors.

Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

Reinstall all covers correctly before returning the machine to the customer.

Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.

© Copyright Lenovo 2011

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Contents ThinkPad X121e Hardware Maintenance ManualFirst Edition July Copyright Lenovo Contents Locations ThinkPad X121e About this manualIii 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 Select Downloads & Drivers Important service informationBefore replacing parts Strategy for replacing FRUsImportant notice for replacing a system board How to use error messageDynamic Configure To Order CTO Strategy for replacing a hard disk driveFRU identification for CTO, CMV, and GAV products Using PEWGeneral Announce Variant GAV Hardware Maintenance Manual What to do first General checkoutFollowing are not covered under warranty Diagnostics using PC-Doctor for DOSCheckout guide Testing the computer Utility Diagnostics Interactive TestsLenovo ThinkVantage Toolbox Hardware InfoApplicable test FRU testsPin Voltage V dc Power system checkoutChecking the ac power adapter Interactive Tests MouseChecking operational charging Checking the battery packTerminal Voltage V dc Wire Voltage V dc Checking the backup batteryRestoring the factory contents by using Recovery Disc Set Related service informationPower-on password PasswordsHard disk password Select Power-On Password Supervisor passwordHow to remove the power-on password How to remove the hard-disk passwordScreen blank mode Power managementSleep standby mode Symptom-to-FRU index Hibernation modeNumeric error codes Beep symptoms Error messagesNo-beep symptoms See important note for LCD-related symptoms LCD-related symptomsIntermittent problems Reseat the LCD connectorsUndetermined problems Hardware Maintenance Manual Indicator Meaning Status indicatorsHardware Maintenance Manual Fn key combinations Speaker volume down keysKey combination Description For Windows Vista and Windows XP Key combination Description For WindowsPlastic to plastic FRU replacement noticesScrew notices External CRU statement to customersRestoring the serial number of the system unit Retaining serial numbersSelect 2. Read S/N data from Eeprom Product ID on the rear label Retaining the UuidReading or writing the ECA information MTM 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 No. FRU Overall LCD FRUsFRU no. CRU ID FRU LCD FRU LCD FRU LCD Language FRU no Miscellaneous parts Ac power adaptersCountry or region FRU no Power cordsWindows Vista Business 32-bit DVDs Recovery discs Windows XP Professional 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 DVDsUS English 04T1876 Windows 7 Ultimate 32-bit DVDsWindows 7 Ultimate 64-bit DVDs Windows 7 Starter 32-bit DVDsTool Common service tools103 Appendix A. NoticesTrademarks Electronic emissions noticesPage 0A96013