Replacing devices | Lenovo 23539KU specs

4. Loosen the screws on the cover 1 , then remove the cover

5. Remove the two screws that secure the keyboard.

2.

6.Turn the computer over and open the display.

7.Push hard in the direction shown by the arrows keyboard will open up slightly 2 .

1

to unlatch the front side of the keyboard. The

Chapter 6. Replacing devices 75

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Lenovo 23539KU manual Replacing devices

Contents

User Guide First Edition May Copyright Lenovo Safety, Warranty, and Setup Guide Regulatory Notice Contents Replacing devices Iii Appendix B. Weee and recycling statements Iv User Guide Protect yourself from the heat that your computer generates Read this firstPrevent your computer from getting wet Protect the cables from being damaged Protect your computer and data when moving it Important safety informationHandle your computer gently Carry your computer carefully Service and upgrades Safety guidelinesConditions that require immediate action Vii Viii User Guide Extension cords and related devices Power cords and power adapters Power supply statement Plugs and outletsExternal devices Rechargeable battery notice General battery notice Lithium coin cell battery notice Xiii Heat and product ventilation Laser compliance statement Electrical current safety information Using headphones or earphones Additional safety informationLiquid crystal display LCD notice Do not connect phone line while using tablet mode Locating computer controls, connectors, and indicators Product overviewFront view Built-in microphones on some models Power buttonIntegrated camera on some models ThinkLight light Right-side view Wireless radio switchSecurity keyhole Serial Ultrabay Slim bay Left-side view USB 3.0 connectorFan louvers Combo audio jack PCI Express Mini Card slot for wireless LAN/WiMAX Bottom viewSmart card slot Rear View Ethernet connector Power jackMini DisplayPort connector or Thunderbolt connector Always On USB connector System-status indicators Status indicatorsWireless LAN/WAN/WiMAX/Bluetooth status indicator Device access status indicator Battery status Power status indicatorsLocating important product information Machine type and model label FCC ID and IC Certification number label Certificate of Authenticity label Features User Guide Operating environment Specifications Accessing programs from Control Panel Accessing ThinkVantage programsThinkVantage programs Program Icon name Access Connections Introduction to ThinkVantage programsProgram Control Panel section Green text in Control Panel Lenovo Solutions Center Client Security SolutionPassword Manager Active Protection System Recovery Media Power ManagerRescue and Recovery System Update User Guide Using your computer Frequently asked questionsRegister your computer Need to attach or replace a device? Is getting connected in different locations a challenge? Switching a display output location Fn+F7 Power conservation Fn+F4Enabling or disabling the wireless features Fn+F5 Special keys and buttons Adjusting the brightness level of the computer display Changing the camera and audio settings Fn+F6Multimedia controls Other functions Volume and mute buttons Setting the volumeSetting the microphone mute button Using the UltraNav pointing device Windows keyWindows key Using the TrackPoint pointing device Customizing the TrackPoint pointing deviceClick Start Control Panel Hardware and Sound Mouse UltraNav Changing the cap Using the touch pad Power management Checking battery statusAdding the UltraNav icon to the system tray Charging the battery Using the ac power adapterConnecting the ac power adapter Tips on using the ac power adapter Maximizing battery life Managing your battery powerPower-saving modes Wireless off Handling the batteryEnabling the battery alarm Click the Global Power Settings tab Using your computer Wireless connections Connecting to the networkWireless LAN Wireless WAN Establishing wireless WAN connections Establishing wireless LAN connectionsTips for using the wireless LAN feature Wireless network setup Using WiMAX Using BluetoothChecking wireless connection status Select Send To Bluetooth Devices Access Connections icon and wireless status icon Connecting a projector or external display Changing display settingsEnabling or disabling the wireless feature Presentations and multimedia Setting the monitor type Connecting an external monitorSet Resolution Click Advanced Settings Considerations for attaching an external monitor Using the DVI monitor Select Multiple DisplaysConsiderations for attaching a DVI monitor Using the Extend desktop function Setting up a presentationUsing the Mini DisplayPort connector Using the Thunderbolt connector Using audio features Using the Nvidia Optimus Graphics feature Using the optical drive Using an integrated cameraConfiguring camera settings Adjusting the video output quality of your camera MultiBurner drive Using an ExpressCard, a flash media card, or a smart card Using your computer User Guide Accessibility and comfort You and your computerErgonomic information Comfort Accessibility information Traveling with your computer Travel accessoriesTravel tips Assistive technologies User Guide Passwords and sleep mode Using passwordsTyping passwords Security Hard disk passwords Power-on passwordSetting a power-on password Select Power-on Password Select Hard Disk 1 Password Setting a hard disk password Changing or removing a hard disk password Supervisor password Select Supervisor Password Setting, changing, or removing a supervisor password Hard disk security Using Windows BitLocker Drive Encryption Setting the security chip Setting the security chip Using the fingerprint reader Enrolling your fingerprintLED behavior of the fingerprint reader Swiping your finger over the reader Logging on to the systemLED behavior Description Care for the fingerprint reader Setting the fingerprint reader Security Protecting data against viruses Using and understanding firewalls Recovery overview Creating and using recovery mediaCreating recovery media Performing backup and recovery operations Using recovery mediaPerforming a backup operation Performing a recovery operation Using the Rescue and Recovery workspaceClick the Restore your system from a backup icon Rescue files from your hard disk drive or from a backup Creating and using a rescue medium Using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications and device drivers Reinstalling preinstalled applicationsReinstalling preinstalled device drivers Solving recovery problems Replacing the battery Replacing devicesStatic electricity prevention User Guide Replacing a memory module User Guide Replacing devices Replacing the hard disk drive or solid state drive Replacing devices To remove the keyboard, do the following Replacing the keyboard Replacing devices To install the keyboard, do the following Replacing devices User Guide Replacing devices User Guide Replacing devices To replace a PCI Express Mini Card with three connectors Remove the screw Card pops up Remove the card User Guide Before you start, print these instructions User Guide Replacing devices User Guide Replacing devices User Guide Replacing devices Replacing the SIM card Replacing the Serial Ultrabay Slim device Replacing devices Replacing the backup battery Replacing devices User Guide Enhancing your computer Finding ThinkPad optionsPerforming a warm-swap operation Lift up the stopper on the hard disk drive adapter Enhancing your computer Inserting the secondary hard disk drive adapter into the bay ThinkPad docking stations and port replicators Front view User Guide Rear view User Guide Attaching a ThinkPad port replicator or docking station User Guide Enhancing your computer Detaching a ThinkPad port replicator or docking station Security feature Using the system lock key User Guide Installing a new operating system Advanced configurationBefore you begin 111 Select UEFI/Legacy Boot Installing Windows 7 operating systemInstalling the registry patches for Windows Installing the Windows 7 update module package Installing the driver for the 4-in-1 media card reader Installing device driversClick Change display settings Click Advanced Settings Click Update Driver ThinkPad Setup Installing other device drivers and softwareMain menu MAC address Internal LAN Config menuMenu item Submenu item Value Comments Network AC only For Legacy Only boot EnabledDisabled Menu item Submenu item Value Comments Both Menu item Submenu item Value Comments Keyboard/MouseDisplay ThinkPad LCD Battery Optimized Always PowerDisabled No runtime Battery Optimized Automatic Beep and Alarm Menu item Submenu item Value Comments Serial ATA Sata Intel AMTVT100+ Menu item Submenu item Value Comments Password Date/Time menuSecurity menu External FingerprintInternal Enter Smbios Reporting Smbios data Bios ROM String Reporting Bios text stringUpdate Option Protection Enabled Anti-Theft Menu item Submenu item Value Comments Port Access Changing the startup sequence Startup menu Restart menu Using system management Updating your system Uefi BiosPreboot eXecution Environment System management Network Boot sequence Setting management featuresWake on LAN Asset ID Eeprom Flash update User Guide Preventing problems General tips for preventing problems131 Making sure device drivers are current Getting the latest drivers using System UpdateGetting the latest drivers from the Web site Click Downloads and drivers Taking care of your computer Be careful about where and how you workBe gentle with your computer Carry your computer properly Cleaning the cover of your computer Take care in setting passwordsRegister your computer Be sure not to modify your computer Cleaning your computer display Cleaning your computer keyboard User Guide Diagnosing problems Troubleshooting computer problemsTroubleshooting Computer stops responding Error messages Spills on the keyboardIf you spill something on your computer Troubleshooting computer problems User Guide Errors without messages Memory problems Beep errorsEthernet problems Problem Solution Solution Wireless LAN problem Bluetooth problems Wireless WAN problemUltraNav problems Keyboard and other pointing devices Computer screen problems Keyboard problemsDisplay and multimedia devices Click Keyboard External monitor problems Audio problems Click Start Control Panel Click Hardware and SoundDouble-clickSound, video and game controllers Fingerprint reader problems Battery and power Battery problemsAC power adapter problems Power problems Power button problemStartup problems Sleep and hibernation problems Solid state drive problems Hard disk drive problemsOptical drive problems Drives and other storage devices Ports and connectors Software problems Docking station or port replicator problem USB problem Getting help and service Getting supportBefore you contact Lenovo Using diagnostic programs Lenovo Support Web siteCalling Lenovo Telephone numbers Purchasing additional services User Guide Wireless interoperability Wireless related informationAppendix A. Regulatory information 159 Location of the UltraConnect wireless antennas Usage environment and your healthType 1 Antenna location Type 2 Antenna location Locating wireless regulatory notices Electronic emissions notices Export classification noticeFederal Communications Commission Declaration of Conformity Industry Canada Class B emission compliance statement Korea Class B compliance statement German Class B compliance statement User Guide EU Weee statements Appendix B. Weee and recycling statementsJapan recycling statements 165 Battery recycling information for Taiwan Recycling information for BrazilDisposing of Lenovo computer components Battery recycling information for the European Union User Guide Power plan Energy Saver settings when plugged into ac power Appendix C. Energy Star model information169 Click OK 171 Appendix D. Notices Trademarks Page Part Number 1P P/N