Replacing the base cover assembly | Lenovo 20AX000VUS manual

Replacing the base cover assembly

Before you start, print these instructions.

To replace the base cover assembly, do the following:

1.Disable the built-in battery. See “Disabling the built-in battery” on page 63.

2.Close the computer display, and turn the computer over.

3.Loosen the screws 1 that secure the base cover assembly. Then remove the base cover assembly

4. Install the new base cover assembly 1 and tighten the screws 2 .

5. Turn the computer over again. Connect the ac power adapter and all cables.

2.

64User Guide

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Lenovo 20AX000VUS manual Replacing the base cover assembly

Contents

User Guide Safety, Warranty, and Setup Guide Regulatory Notice First Edition May Copyright Lenovo Contents Replacing devices Iii Iv User Guide Read this first Protect yourself from the heat that your computer generatesPrevent your computer from getting wet Protect the cables from being damaged Important safety information Protect your computer and data when moving itHandle your computer gently Carry your computer carefully Safety guidelines Service and upgradesConditions that require immediate action Vii Power cords and power adapters Plugs and outlets Power supply statementExtension cords and related devices External devices General battery noticeBuilt-in rechargeable battery notice Lithium coin cell battery notice Heat and product ventilation Electrical current safety information Using headphones or earphones Additional safety informationLiquid crystal display LCD notice Xiii Xiv User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview Power button System status indicator illuminated ThinkPad logoCamera Microphones Right-side view Fan louversMedia card reader slot Combo audio jack USB 3.0 connector Left-side viewHigh Definition Multimedia Interface Hdmi port Security-lock slot Always On USB connector USB Ac power connector Lenovo OneLink connectorEthernet connector Bottom view Status indicators FCC ID and IC Certification number label Locating important product informationMachine type and model label Certificate of Authenticity label Features Specifications Operating environment Accessing Lenovo programs on the Windows 7 operating system Lenovo programs Program Control Panel section Green text in Control Panel Accessing Lenovo programs from Control PanelProgram Icon name Lenovo programs overview Accessing Lenovo programs on the Windows 8 operating systemAccess Connections Client Security Solution Lenovo Mobile AccessLenovo Settings Lenovo Solution Password Manager Power ManagerRecovery Media Rescue and Recovery Using your computer Frequently asked questionsRegistering your computer Can I get my user guide in another language? Need to attach or replace a device? How to use the battery power more effectively?Is getting connected in different locations a challenge? Using the multi-touch screen To view the recently used applications Special keys Function keys Using the ThinkPad pointing device Windows key Using the TrackPoint pointing stick Using the multi-touch touch padCustomizing the ThinkPad pointing device Click Hardware and Sound Mouse ThinkPad Using the ac power adapter Power managementChecking the battery status Charging the battery Maximizing the battery lifeConnecting the ac power adapter Tips on using the ac power adapter Managing the battery power Power-saving modesSelect Power off display Sleep Click Settings Power Sleep Wireless off Click Administrative ToolsAlways On USB function off Enabling the wakeup function Ethernet connections Connecting to the networkWireless connections Establishing a wireless connection Using BluetoothBluetooth Select Send To Bluetooth Devices Checking the wireless network connection status Access Connections gaugeAccess Connections status icon Access Connections wireless status icon Attaching an external monitor Enabling or disabling the wireless featuresConnecting an external monitor Considerations for attaching an external monitor Setting the monitor typeSet Resolution Click Advanced Settings Changing display settings Using the Extend desktop functionConsiderations for using the Extend desktop function Click Multiple Display Using audio features Setting up a presentationUsing the AMD Switchable Graphics feature Using the integrated camera Using a media cardConfiguring for sound recording Configuring camera settings Inserting a media card Removing a media card User Guide Ergonomic information Accessibility and comfortYou and your computer Accessibility information Comfort Traveling with your computer Travel tipsAssistive technologies Screen-reader technologies Travel accessories Using passwords Passwords and sleep modeTyping passwords Security Power-on password Hard disk passwordsSetting a power-on password Select Power-on Password Setting a hard disk password Select Hard Disk 1 Password or Hard Disk 2 Password Supervisor password Changing or removing a hard disk password Setting, changing, or removing a supervisor password Select Supervisor Password Using Windows BitLocker Drive Encryption Hard disk security Setting the security chip Setting the security chip Swiping your finger over the reader Using the fingerprint readerEnrolling your fingerprint Maintaining the fingerprint reader Using firewalls Protecting data against viruses Security User Guide Recovery overview Recovery overview for the Windows 7 operating systemCreating and using a recovery media Creating recovery media Performing backup and recovery operations Performing a backup operation Using the Rescue and Recovery workspace Performing a recovery operationClick the Restore your system from a backup icon Rescue files from your hard disk drive or from a backup Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled applications and device drivers Solving recovery problemsReinstalling preinstalled applications Reinstalling preinstalled device drivers Recovery overview for the Windows 8 operating system Resetting your computer to the factory default settingsChange PC settings General Refreshing your computer Recovery overview User Guide Disabling the built-in battery Select Disable Built-in BatteryReplacing devices Static electricity prevention Replacing the base cover assembly Replacing the hard disk drive or solid-state drive User Guide Replacing a memory module Replacing a Mini PCI ExpressCard for wireless LAN connection Replacing devices Replacing the backup battery Replacing devices User Guide Before you begin Advanced configurationInstalling a new operating system Installing the Windows 7 operating system Select UEFI/Legacy BootInstalling the registry patches for Windows Installing the Windows 7 fix modules Installing the Windows 8 operating system Installing the driver for USB 3.0 for WindowsSelect Startup Boot Installing the Windows 8 fix modules Installing other drivers and software for Windows ThinkPad SetupClick Change display settings Click Advanced Settings Click Properties Config menu Main menu Enabled For Legacy Only bootMenu item Submenu item Selection Comments Network AC Only OS Optimized Defaults is set DisabledMenu item Submenu item Selection Comments Auto Switchable Setting to AMD switchableIntegrated Graphics mode if Power Beep and Alarm Date/Time menuHours Serial ATA Sata Security menu Menu item Submenu item Selection Comments PasswordAt unattended boot, a password Disabled, the Security Chip option Bios ROM Strings ReportingSmbios Reporting Smbios Inactive Virtualization Port AccessMemory Protection Secure Boot User ModeStandard Mode Startup menu Changing the startup sequence Restart menu Updating your system Uefi Bios Using system managementPreboot eXecution Environment System management Setting management features Network Boot sequenceWake on LAN Asset ID Eeprom Flash update Preventing problems General tips for preventing problems Getting the latest drivers using System Update Making sure device drivers are currentGetting the latest drivers from the Web site Click Downloads and drivers Be careful about where and how you work Taking care of your computerBe gentle with your computer Carry your computer properly Cleaning the cover of your computer Take care in setting passwordsCare for the fingerprint reader Register your computer Be sure not to modify your computer Cleaning your computer keyboard Cleaning your computer display User Guide Troubleshooting computer problems Diagnosing problemsTroubleshooting Computer stops responding If you spill something on your computer Error messagesSpills on the keyboard Troubleshooting computer problems Errors without messages Beep errors Problem Solution Ethernet problems Memory module problemsNetworking problems Wireless LAN problem Bluetooth problemsSolution Open Control Panel. Click Hardware and Sound Sound Playback Problems with the keyboard and other pointing devices Problems with the display and multimedia devicesThinkPad pointing device problems Keyboard problems Computer screen problems External monitor problems Set Resolution Double-clickSound, video and game controllers Audio problemsClick Hardware and Sound Fingerprint reader problems Battery and power problems Battery problemsAn ac power adapter problem Power problems Sleep and hibernation problems Power button problemBoot problems Problems with drives and other storage devices Hard disk drive problems Software problem Problems with ports and connectorsSolid-state drive problem USB problem User Guide Getting support Before you contact Lenovo Getting help and service Using diagnostic programsLenovo Support Web site Calling Lenovo Finding ThinkPad options Telephone numbers Purchasing additional services Wireless related information Wireless interoperabilityAppendix A. Regulatory information 119 Location of the UltraConnect wireless antennas Usage environment and your health Locating wireless regulatory notices Export classification noticeElectronic emission notices Federal Communications Commission Declaration of Conformity German Class B compliance statement Appendix A. Regulatory information User Guide Appendix B. Weee and recycling statements Important Weee informationJapan recycling statements 125 Disposing of Lenovo computer components Battery recycling information for the European UnionRecycling information for Brazil Appendix B. Weee and recycling statements User Guide Power plan Energy Saver settings when plugged into ac power Appendix C. Energy Star model informationClick Hardware and Sound Device Manager 129 Click OK Appendix D. Notices 131 Trademarks 133 European Union RoHSChina RoHS Turkish RoHS Ukraine RoHS India RoHS Page Part Number 1P P/N