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IBM T520I, W520 manual Safety information

Models: T520I W520

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Install Parts list Error messages Password Status indicators Wire Voltage V dc Supported RAID configurations Symptom-to-FRU index Diagnostics Interactive Tests Keyboard bezel assembly

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Chapter 1. Safety information 21

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IBM T520I, W520 manual Safety information

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Contents

ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Page ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Third Edition April Copyright Lenovo Contents Locations About this manual Page General safety Safety information Electrical safety Safety inspection guide Grounding requirements Safety notices multilingual translations Safety information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Perigo Perigo Safety information Vorsicht Vorsicht ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Safety information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Safety information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Laser compliance statement multilingual translations ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Safety information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Safety information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Strategy for replacing FRUs Important service information Important notice for replacing a system board How to use error messageStrategy for replacing a hard disk drive General Announce Variant GAV FRU identification for CTO, CMV, and GAV products ThinkPad T520, T520i, and W520 Hardware Maintenance Manual What to do first General checkout Checkout guide Diagnostics using PC-Doctor for DOS Testing the computer Lenovo ThinkVantage Toolbox Diagnostics Interactive TestsHardware Info Utility Applicable test FRU tests Power system checkout Checking the ac adapter Checking the battery packChecking operational charging Pin Voltage V dc Terminal Voltage V dc Checking the backup batteryWire Voltage V dc Restoring the factory contents by using Recovery Disc Set Related service information Hard-disk password PasswordsPower-on password How to remove the hard-disk password Supervisor passwordHow to remove the power-on password Sleep standby mode Power managementScreen blank mode Symptom-to-FRU index Hibernation mode Numeric error codes Error messages Beep symptoms Intermittent problems No-beep symptomsLCD-related symptoms Undetermined problems Supported RAID configurations Installing and configuring RAIDCreating RAID volumes RAID Level 0 RAID 0 Striped disk array Deleting RAID volumes Status indicators Indicator Meaning Indicator Meaning ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Key combination Description Fn key combinations For Windows Vista and Windows XP For Windows Power Option in the Control Panel or use the Power Manager ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Screw notices FRU replacement notices Restoring the serial number of the system unit Retaining serial numbersRetaining the Uuid MTM on rear label Eeprom Reading or writing the ECA information ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Removing and replacing a FRU Before servicing ThinkPad T520, T520i, and W520 Battery pack Serial Ultrabay Enhanced device or travel bezel For access, remove this FRU Battery pack Dimm slot cover Dimm bottom slot For ThinkPad T520 and T520i For ThinkPad W520 ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Step Screw quantity Color Torque Keyboard When installing the keyboard, do as follows Removing and replacing a FRU Dimm upper slot Installation steps of keyboard Removal steps of Dimm upper slot PCI Express Mini Card for wireless LAN Removal steps of PCI Express Mini Card for wireless LAN When installing Removal steps of PCI Express Mini Card for wireless WAN Removal steps of mSATA Removal steps of ExpressCard blank bezel or ExpressCard Keyboard bezel assembly Removal steps of keyboard bezel assembly Bluetooth daughter card BDC-3.0 Backup battery Smart Card or Smart Card dummy spacer Removal steps of Smart Card Speaker assembly Removal steps of speaker assembly Removal steps of thermal module Thermal module For Switchable Graphics models For Integrated Graphics models For Workstation models 1160 CPU Removal steps of CPU LCD unit Step Screw cap Screw quantity Color Torque M2 × 4 mm, wafer-head, nylon-coated Black 181 Nm Kgfcm Base cover assembly Removal steps of base cover assembly 1190 I/O sub card Removal steps of I/O sub card Important notices for handling the system board Important notices for RAID setting Location of major sensitive components on the system board Removal steps of system board and magnesium structure frame LCD bezel assembly LED sub card LCD cable, camera cable, LCD panel, and hinges Integrated camera LCD unit LCD bezel assembly Removing and replacing a FRU Antenna kit and LCD rear cover assembly Removal steps of antenna kit and LCD rear cover assembly ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Front view Locations Rear view Bottom view ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Optional-service CRUs Parts listSelf-service CRUs Overall CRU CRU FRU Overall FRU no CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU CRU LCD FRUs FRU ThinkPad T520, T520i and W520 LCD FRU no CRU CRU CRU CRU CRU Language FRU no Miscellaneous parts AC adapters Power cords Region Recovery discs Windows 7 Home Basic 32 bit DVDs Language Windows 7 Home Premium 64 bit DVDs Windows 7 Professional 32 bit DVDs 4281-CTO 4282-CTO, 29x, 3Px 4284-CTO Windows 7 Professional 64 bit DVDs Tool Common service tools Appendix A. Notices Trademarks Electronic emissions noticesPage 0A6007802

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