„ Using the AC adapter | Lenovo Y550P specification

Chapter 2. Using Your Computer

Using the AC adapter

The power to run your computer can come either from the battery pack or from AC power through the AC adapter.

Attention:

Using an improper power cord could cause severe damage to your computer.

To use the AC adapter, do the following. Be sure to take these steps in the order in which they are given here.

1Connect the power cord to the AC adapter.

2Connect the AC adapter to the AC power adapter jack of the computer firmly.

3Plug the power cord into an electrical outlet.

You can check the status of your battery at any time by looking at the battery meter at the bottom of your display.

Note:

When you do not use the AC adapter, disconnect it from the electrical outlet.

Do not wrap the power cord tightly around the AC power transformer pack when it is connected to the transformer.

You can charge the battery when the AC adapter is connected to the computer and the battery is installed. You need to charge it in any of the following conditions:

When you purchase a new battery

If the battery status indicator starts blinking

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Lenovo Y550P manual „ Using the AC adapter

Contents

Lenovo IdeaPad Y550P First Edition July Copyright Lenovo Energy Star model information Page Explanation of hard disk capacity Page Contents Contents Getting Help Safety, Use and CareAppendix A. Lenovo Limited Appendix B. Customer Getting to Know Your Computer Power button Wireless LAN antennas Volume buttonsGetting to Know Your Computer Computer display Left-side view Getting to Know Your Computer Security keyhole Fan louvers TV-in jack specific models only AC power adapter jackRight-side view Integrated wireless device switch System status indicators Bottom view Battery latch spring loaded Battery latch manualGetting to Know Your Computer Subwoofer Hard Disk Drive compartment Using Your Computer Using the touchpad Using Your Computer „ Gestures„ Palm Check Pinch Using the keyboard „ Numeric keypad „ Function key combinations Using Your Computer „ Touch inductive panel and volume buttons Special keys and buttons OneKey Rescue System button Using Your Computer Touch inductive panel ~Volume buttons ~ Using the optical drive Using memory cards Using Your Computer Using lenovo remote control specific models only Using the integrated camera Using the internet „ Using RJ-45 port „ Using wireless LAN Securing your computer „ Attaching a security lock optional „ Using VeriFace „ Using passwords „ Checking battery status Installing device driversUsing battery and AC adapter „ Using the AC adapter „ Charging the battery „ Handling the battery Using Your Computer Using External Devices Connecting a Universal Serial Bus USB device Using External Devices Connecting an eSATA/USB port device Connecting a PC card device „ Inserting an ExpressCard/34 module „ Removing an ExpressCard/34 module Connecting an external display „ Connecting a VGA monitor „ Connecting an Hdmi monitor Connecting a headphone and audio device Using External Devices Connecting an external microphone „ Enabling Bluetooth communications „ Introduction OneKey Rescue SystemOneKey Rescue System OneKey Rescue System OneKey Rescue System Troubleshooting Frequently Asked Questions Troubleshooting Where are the recovery discs? When do I need to restore the system to the factory status? When I turn on the computer, nothing appears on the screen Troubleshooting„ Display problems My screen goes blank while the computer is on „ a Password problem „ Keyboard problemsForgot my password Number appears when you enter a letter „ Sleep or hibernation problems Computer enters sleep mode unexpectedly „ Computer screen problems Screen is blank Troubleshooting Screen is unreadable or distorted Incorrect characters appear on the screen „ Sound problems „ Battery problemsOperating time for a fully charged battery is short Computer does not operate with a fully charged battery „ OneKey Rescue System problems „ a hard disk drive problem„ a startup problem Computer does not start from a device you want „ Other problemsYour computer does not respond Getting Help and Service Getting help and service Getting Help and Service Getting help on the Web Getting Help and Service Getting Help and Service Warranty Service Telephone Numbers Getting help around the world Safety, Use and Care Information Important safety information Safety, Use and Care Information „ Conditions that require immediate action „ Safety guidelines „ Service and upgrades „ Power cords and power adapters Safety, Use and Care Information „ Extension cords and related devices „ Plugs and outlets „ Power supply statement „ Lithium coin cell battery notice „ Heat and product ventilation Safety, Use and Care Information „ CD and DVD drive safety „ Electrical current safety information Safety, Use and Care Information „ Laser compliance statement Safety, Use and Care Information „ Liquid crystal display LCD notice „ Be careful about where and how you work Caring your computer Safety, Use and Care Information Safety, Use and Care Information „ For outdoor use „ Be gentle with your computer„ Carry your computer properly „ Data safety „ Handle storage media and drives properly „ Take care in setting passwords „ Other important tips „ Cleaning the cover of your computer „ Cleaning your computer keyboard Accessibility and comfort „ Cleaning your computer display „ Ergonomic information Safety, Use and Care Information „ Questions about vision? Maintenance„ What if you are traveling? „ General tips for maintenance Safety, Use and Care Information Safety, Use and Care Information Appendix A. Lenovo Limited Warranty „ What this warranty covers Appendix A. Lenovo Limited Warranty „ How to obtain warranty service„ What your service provider will do to correct problems „ Replacement of a product or part Information „ Your additional responsibilities „ Use of personal information „ What this warranty does not cover „ Limitation of liability „ Dispute resolution „ Lenovo Turkey address „ Other rights„ European Economic Area EEA Warranty information UAE „ Types of warranty service Customer Replaceable Unit CRU Service Appendix A. Lenovo Limited Warranty On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service 100 Appendix A. Lenovo Limited Warranty Product Exchange Service 101 Appendix B. Customer Replaceable Units CRUs 102 Appendix C. Specifications Environment ƒ Temperature103 Size Appendix C. Specifications 104 Appendix D. Notices 105 106 Appendix D. Notices 107 „ Export classification notice„ Television output notice 108 Wireless related information„ Wireless interoperability „ Usage environment and your health 109 110 „ Products with television tuner options installed „ Note to Catv system installerTV tuner information 111 „ Example of antenna grounding 112 113 114 Electronic emissions notices„ Federal Communications Commission FCC Statement 115 „ Industry Canada Class B Emission Compliance Statement„ Avis de conformité à la réglementation d’Industrie Canada „ German Class B Compliance Statement 116 117 „ European Union Compliance Statement Class B Compliance 118 119 120 „ Japan Compliance Statement for Power line Harmonics„ Korea Class B 121 Weee and recycling statements„ General recycling statement EU Weee Statements 122 Japan Recycling Statements 123 „ Disposing of a Lenovo Computer Components 124 125 126 127 Index 128 129 Index 130 131 Page Do not Return IT to the Store If your product is not working correctly New World. 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