Lenovo S230U, 33472YU, 33472GU, 3347XF2 manual Power cords and power adapters

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that the power is turned off and that the product is unplugged from any power source. If you have any questions or concerns, contact the Customer Support Center.

Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety.

CAUTION:

Hazardous moving parts. Keep fingers and other body parts away.

CAUTION:

Before replacing any CRUs, turn off the computer and wait three to five minutes to let the computer cool before opening the cover.

Power cords and power adapters

DANGER

Use only the power cords and power adapters supplied by the product manufacturer.

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly.

Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect power cords and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating.

Always connect power cords and signal cables in the correct order and ensure that all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input pins or anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way.

viUser Guide

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Contents User Guide Safety, Warranty, and Setup Guide Regulatory Notice Second Edition December Copyright LenovoContents Preventing problems Read this first Protect yourself from the heat that your computer generatesPrevent your computer from getting wet Protect the cables from being damagedImportant safety information Protect your computer and data when moving itHandle your computer gently Carry your computer carefullyConditions that require immediate action Safety guidelinesService and upgrades Power cords and power adapters Power supply statement Extension cords and related devicesPlugs and outlets ViiGeneral battery notice Built-in rechargeable battery noticeLithium coin cell battery notice External devicesHeat and product ventilation Electrical current safety information Liquid crystal display LCD noticeUsing headphones or earphones Additional safety informationXii User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview Volume control buttons System status indicator illuminated ThinkPad logoIntegrated camera Built-in microphonesUSB 3.0 connector Mini DisplayPort connectorRight-side view Hard disk or solid-state drive bayLeft-side view Mini Hdmi connector Ethernet connectorCombo audio jack Media card reader slotStatus indicators System status indicatorsIntegrated battery Bottom viewPower status indicator Locating important product information Machine type and model labelFeatures FCC ID and IC Certification number labelSpecifications Battery pack Battery lifeOperating environment Lenovo programsLenovo Settings Lenovo Mobile AccessLenovo Solution Center Lenovo Support Password ManagerRegistering your computer Using your computerFrequently asked questions Tablet mode Using tablet modeIs getting connected in different locations a challenge? Need to attach or replace a device?Using your computer Tips on using your computer in tablet mode Using the multi-touch screen Tips on using the multi-touch screen Cleaning the multi-touch screenUsing the tablet buttons Special keys and buttonsOther functions Function keys Volume and mute keysDisplay management keys Using the UltraNav pointing device Select Config Keyboard/Mouse Change to F1-F12 keysChanging the UltraNav pointing device settings Windows keyChanging the cap Using the TrackPoint pointing deviceCustomizing the TrackPoint pointing device Customizing the touch pad Using the touch padDisabling the UltraNav pointing device Power management Using the battery powerChecking the battery status Adding the UltraNav icon to the Windows notification areaUsing the ac power adapter Charging the batteryMaximizing the battery life Connecting the ac power adapterManaging the power plans Power-saving modesConnecting to the network Click More power optionsEthernet connections Wireless connectionsUsing the wireless LAN and wireless WAN connections Presentations and Multimedia Changing the display settingsUsing Bluetooth Setting the main display Using an external displayConsiderations for using an external monitor Using a projector Using audio featuresSetting the monitor type Set Resolution Click Advanced SettingsUsing the integrated camera Using a media cardConfiguring for sound recording Configuring camera settingsInserting a media card Removing a media cardClick Hardware and Sound Device Manager Right-click the Safely Remove Hardware and Eject Media iconErgonomic information Accessibility and comfortYou and your computer Accessibility information ComfortTravel accessories Traveling with your computerTravel tips Assistive technologiesUser Guide Using passwords Passwords and sleep modeTyping passwords SecurityPower-on password Hard disk passwordsSetting a power-on password Select Power-on PasswordSetting a hard disk password Select Hard Disk 1 PasswordSupervisor password Changing or removing a hard disk passwordSetting, changing, or removing a supervisor password Select Supervisor PasswordUsing Windows BitLocker Drive Encryption Hard disk securityClick System and Security BitLocker Drive Encryption Setting the security chipSetting the security chip Using firewalls Protecting data against virusesSecurity User Guide Recovery overview Refreshing your computerUser Guide Disabling the built-in battery Select Disable Built-in BatteryReplacing devices Static electricity preventionUser Guide Replacing the hard disk drive or solid-state drive User Guide Replacing the keyboard User Guide Replacing devices User Guide Replacing a Mini PCI ExpressCard for wireless LAN connection User Guide Replacing devices Installing or replacing the wireless WAN card Replacing devices User Guide Replacing devices User Guide Advanced configuration Installing a new operating systemInstalling the Windows 8 operating system Select Startup BootMain menu Installing device drivers ThinkPad SetupInstalling the Windows 8 fix module AC Only Config menuMenu item Submenu item Selection Comments Network IPv4 First EnabledMenu item Submenu item Selection Comments Disabled DefaultAuto Keyboard/MousePower Battery Optimized AlwaysMenu item Submenu item Selection Comments Display ThinkPad LCDMenu item Submenu item Selection Comments Beep and Alarm Date/Time menuSecurity menu Serial ATA SataMenu item Submenu item Selection Comments Password At unattended boot, a passwordDisabled, the Security Chip option Bios ROM String ReportingSmbios Reporting Smbios Uefi Bios Update OptionAnti-Theft Port AccessMenu item Submenu item Selection Comments Virtualization Menu item Submenu item Selection Comments Secure Boot Startup menuChanging the startup sequence Uefi Only and set CSM SupportMenu item Selection Comments Boot Network BootUEFI/Legacy Boot Uefi Only UEFI/Legacy Boot Priority Uefi FirstUpdating your system Uefi Bios Using system managementMenu item Selection Comments Boot Device List F12 Option Boot Order Lock DisabledSetting management features System managementNetwork Boot sequence Flash updateUser Guide Preventing problems General tips for preventing problemsGetting the latest drivers from the Web site Getting the latest drivers using System UpdateMaking sure device drivers are current Be careful about where and how you work Taking care of your computerBe gentle with your computer Carry your computer properlyCleaning the cover of your computer Take care in setting passwordsCleaning your computer keyboard Register your computer Be sure not to modify your computerCleaning your computer display User Guide Troubleshooting computer problems Diagnosing problemsTroubleshooting Computer stops respondingIf you spill something on your computer Error messagesSpills on the keyboard Troubleshooting computer problems Errors without messages Problem Solution Beep errorsMemory module problems Solution Networking problemsEthernet problems Wireless LAN problem Wireless WAN problemBluetooth problems Click Hardware and Sound Sound PlaybackKeyboard problems Problems with the keyboard and other pointing devicesUltraNav pointing device problems Problems with the display and multimedia devices Computer screen problemsExternal monitor problems Set Resolution Audio problems Battery and power problems Battery problemsAn ac power adapter problem Power problemsSleep problems Power button problemBoot problems Problems with drives and other storage devices Hard disk drive problemsSolid-state drive problem Optical drive problemsSoftware problem Problems with ports and connectors USB problemBefore you contact Lenovo Getting help and serviceGetting support Calling Lenovo Using diagnostic programsLenovo Support Web site Telephone numbers Purchasing additional servicesFinding ThinkPad options User Guide Wireless related information Wireless interoperabilityAppendix A. Regulatory information 109Location of the UltraConnect wireless antennas Usage environment and your healthLocating wireless regulatory notices Export classification noticeElectronic emission notices Federal Communications Commission Declaration of ConformityGerman Class B compliance statement Appendix A. Regulatory information User Guide Appendix B. Weee and recycling statements Important Weee informationJapan recycling statements 115Disposing 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 Network adapters 119Click OK Appendix D. Notices 121Trademarks 123 China RoHS Turkish RoHSUkraine RoHS India RoHS

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