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IBM T520I manual ThinkPad T520, T520i, and W520 Hardware Maintenance Manual

Models: T520I W520

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

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108ThinkPad T520, T520i, and W520 Hardware Maintenance Manual

Page 115 Page 117

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IBM T520I manual ThinkPad T520, T520i, and W520 Hardware Maintenance Manual

Page 115 Page 117

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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 Safety information General safety Electrical safety Safety inspection guide Safety notices multilingual translations Grounding requirements 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 Important service information Strategy for replacing FRUs Important notice for replacing a system board How to use error messageStrategy for replacing a hard disk drive FRU identification for CTO, CMV, and GAV products General Announce Variant GAV ThinkPad T520, T520i, and W520 Hardware Maintenance Manual General checkout What to do first Diagnostics using PC-Doctor for DOS Checkout guide Testing the computer Diagnostics Interactive Tests Lenovo ThinkVantage ToolboxHardware Info Utility FRU tests Applicable test Power system checkout Checking the battery pack Checking the ac adapterChecking operational charging Pin Voltage V dc Terminal Voltage V dc Checking the backup batteryWire Voltage V dc Related service information Restoring the factory contents by using Recovery Disc Set 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 Hibernation mode Symptom-to-FRU index Numeric error codes Error messages Beep symptoms Intermittent problems No-beep symptomsLCD-related symptoms Undetermined problems Installing and configuring RAID Supported RAID configurationsCreating 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 Fn key combinations Key combination Description For Windows For Windows Vista and Windows XP Power Option in the Control Panel or use the Power Manager ThinkPad T520, T520i, and W520 Hardware Maintenance Manual FRU replacement notices Screw notices Retaining serial numbers Restoring the serial number of the system unitRetaining the Uuid MTM on rear label Reading or writing the ECA information Eeprom ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Removing and replacing a FRU Battery pack Before servicing ThinkPad T520, T520i, and W520 For access, remove this FRU Battery pack Serial Ultrabay Enhanced device or travel bezel Dimm slot cover Dimm bottom slot For ThinkPad T520 and T520i For ThinkPad W520 ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Keyboard Step Screw quantity Color Torque When installing the keyboard, do as follows Removing and replacing a FRU Installation steps of keyboard Dimm upper slot PCI Express Mini Card for wireless LAN Removal steps of Dimm upper slot 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 Keyboard bezel assembly Removal steps of ExpressCard blank bezel or ExpressCard 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 Thermal module Removal steps of thermal module For Switchable Graphics models 1160 CPU For Integrated Graphics models For Workstation models LCD unit Removal steps of CPU 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 RAID setting Important notices for handling the system board Location of major sensitive components on the system board Removal steps of system board and magnesium structure frame LCD bezel assembly LED sub card Integrated camera LCD cable, camera cable, LCD panel, and hinges 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 Locations Front view Rear view Bottom view ThinkPad T520, T520i, and W520 Hardware Maintenance Manual Optional-service CRUs Parts listSelf-service CRUs Overall 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 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 Recovery discs Windows 7 Home Basic 32 bit DVDs Region Windows 7 Home Premium 64 bit DVDs Language Windows 7 Professional 32 bit DVDs Windows 7 Professional 64 bit DVDs 4281-CTO 4282-CTO, 29x, 3Px 4284-CTO Common service tools Tool Appendix A. Notices Electronic emissions notices TrademarksPage 0A6007802

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