Appendix D. Customer replaceable units CRUs | Lenovo K23 manual

Appendix D. Customer replaceable units (CRUs)

Customer Replaceable Units (CRUs) are computer parts that can be upgraded or replaced by the customer. There are two types of CRUs: internal and external. External CRUs are easy to install, whereas internal CRUs require some technical skills and in some cases might require tools such as a screwdriver. However, both internal and external CRUs are safe for removal by the customer.

Customers are responsible for replacing all external CRUs. Internal CRUs can be removed and installed by customers or by a Lenovo service technician during the warranty period.

Your computer contains the following types of external CRUs:

•External CRUs (pluggable): These CRUs unplug from the computer. Examples of these types of CRUs include the AC adapter and power cord.

•External CRUs with latches: These CRUs include a latch to help you remove and replace the part. Examples of these types of CRUs include the notebook main battery, an optical drive, a hard-disk drive, and an extended battery.

91

Image 105

Lenovo K23 manual Appendix D. Customer replaceable units CRUs

Contents

Lenovo K23 First Edition July Copyright Lenovo Respective Users Explanation of hard disk capacity Page Page Contents Appendix F. Features Contents Appendix C. Lenovo limited125 127 Important safety information Important safety information„ Read this first Iii Important safety information Unpack Important safety information Working place Important safety information On using Vii Important safety information Viii Important safety information Service and upgrades Getting to know your computer Getting to know your computer Touchpad Built-inMicrophone Left-side view ESATA/USBCombo port USB port Right-side view Switch Wireless deviceDisplay latch Integrated Adapter jack AC power Bottom view Battery latch manual Battery pack Install the battery pack „ Connect to the powerLearning the basics „ Read the manuals „ Turn on the computer „ Configure the operating systemLearning the basics Putting your computer into standby/sleep state „ Shutting down your computer Using AC adapter and battery „ Checking battery status„ Charging the battery „ Removing the battery pack „ Handling the battery Left click button Using the touchpad „ Numeric keypad Using the keyboard „ Function key combinations Learning the basics Special buttons Learning the basics Mute button Custom buttonOneKey Rescue System button C d System status indicators „ Attaching a security lock not supplied Securing your computer „ Fingerprint reader „ Using passwords „ Using memory cards not supplied Connecting external devices „ Connecting an ExpressCard device „ Inserting a memory card„ Removing a memory card Removing an ExpressCard/34 device Learning the basics Inserting an ExpressCard/34 device Enabling Bluetooth communications on your computer „ Connecting a universal serial bus USB device Wired connection Using the Internet Using the Internet „ Software configuration„ Hardware connection Cable Wi-Fi Wireless connection Enabling wireless connection „ Using Wi-Fi/WiMax specific models onlySoftware configuration Hardware connection „ Using Mobile Broadband specific models only Inserting the SIM card Using the Internet OneKey Rescue System OneKey Rescue System„ Introduction OneKey Rescue System OneKey Rescue System Frequently asked questions Troubleshooting Where are the recovery discs? Troubleshooting When do I need to restore the system to the factory status? Display problems Troubleshooting Computer is on Password problem Standby or hibernation problems Troubleshooting Keyboard problems Computer does not return from standby mode and does not work Screen is blank Troubleshooting Computer screen problems Troubleshooting Sound problems Battery problemsHard disk drive problem Troubleshooting Startup problem OneKey Rescue System problemsOther problems Connected external Replacing the battery „ To replace the batteryUpgrading and replacing devices Upgrading and replacing devices Handling a hard disk drive Replacing the hard disk drive Upgrading and replacing devices Upgrading and replacing devices Replacing memory Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Appendix A. Getting help and service Getting help on the Web Appendix A. Getting help and service Appendix A. Getting help and service Appendix A. Getting help and service Getting help around the world Warranty Service Telephone Numbers „ Be careful about where and how you work Appendix B. Use, and care InformationCaring for your computer Appendix B. Use, and care Information „ Notice of static-electricity „ Carry your computer properly „ Be gentle with your computer „ Handle storage media and drives properly „ For outdoor use „ Data safety „ Take care in setting passwords„ Other important tips Appendix B. Use, and care Information „ Ergonomic information Accessibility and comfort „ Questions about vision? „ What if you are traveling? „ General tips for maintenance Maintenance Appendix B. Use, and care Information „ Cleaning the cover of your computer „ Cleaning your computer keyboard „ Cleaning your computer display „ What this warranty covers Appendix C. Lenovo limited warranty „ How to obtain warranty service „ What your service provider will do to correct problemsAppendix C. Lenovo limited warranty Information „ Replacement of a product or part „ Use of personal information „ Your additional responsibilities „ What this warranty does not cover „ Limitation of liability „ Dispute resolution „ European Economic Area EEA „ Other rights Lenovo Technology B.V. Turkiye Istanbul Subesi „ Lenovo Turkey address Warranty information Customer Replaceable Unit CRU Service „ Types of warranty service Appendix C. Lenovo limited warranty On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service Appendix C. Lenovo limited warranty Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Appendix E. Notices Appendix E. Notices „ Export classification notice Lenovo License Agreement License Entitlement Transferability Software Product Specifications No Warranty 100Appendix E. Notices Charges Appendix E. Notices Limitation of Liability 101 102 Appendix E. Notices Consumer RightsGeneral 103 Appendix E. Notices Dispute Resolution 104 Energy Star model information 105 Windows XPWindows 106 107 108 „ Wireless interoperability 109 „ Usage environment and your health 110 „ Safety information related to Mobile Broadband 111 Electronic emissions notices „ Federal Communications Commission FCC Statement112 113 „ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada „ German Class B Compliance Statement114 115 116 „ European Union Compliance Statement Class B Compliance 117 „ Japan Compliance Statement for Power line Harmonics „ Korea Class B118 Weee and recycling statements „ General recycling statement119 120 EU Weee statements 121 Japan recycling statements 122 „ Disposing of a Lenovo Computer Components 123 124 125 Appendix F. Features and specificationsModel Name K23 Form Factor Appendix F. Features and specifications Ports 126Others Trademarks 127 128 Index Index 129 130 If your product is not working correctly Do not Return IT to the Store New World. New Thinking.TM