Broadcom BRCM1048 Users Manual

Lenovo IdeaPad
U300/U300s/
U400

User Guide V1.0

Read the safety notices and important tips in the
included manuals before using your computer.

Notes

•

Before using the product, be sure to read Lenovo Safety and General Information Guide first.

•

Some instructions in this guide may assume that you are using Windows® 7. If you are
using other Windows operating system, some operations may be slightly different. If
you are using other operating systems, some operations may not apply to you.

The features described in this guide are common to most models. Some features may not

•
be available on your computer and/or your computer may include features that are not
described in this user guide.

Regulatory Notice

The Regulatory Notice provides information about the radio frequency and safety

•
standards. Be sure to read it before using wireless devices on your computer.

•

To refer to it, go to http://www.lenovo.com, click Support, and then click User’s guides

and manuals.

First Edition (June 2011)

© Copyright Lenovo 2011.

LENOVO products, data, computer software, and services have been developed exclusively at private
expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with
limited and restricted rights to use, reproduction and disclosure. LIMITED AND RESTRICTED
RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General
Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set
forth in Contract No. GS-35F-05925.

Contents

Chapter 1. Getting to know your

computer.......................................................1

Top view.........................................................1

Left-side view ................................................5

Right-side view.............................................. 7

Chapter 2. Learning the basics ...................9

First use...........................................................9

Using AC adapter and battery ..................11

Using the touchpad..................................... 12

Using the keyboard..................................... 13

Connecting external devices...................... 15

Special keys and buttons ............................16

System status indicators .............................17

Securing your computer............................. 18

Chapter 3. Connecting to the Internet ......19

Wired connection ........................................19

Wireless connection ....................................20

Chapter 4. OneKey Rescue system ..........21

OneKey Rescue system .............................. 21

Chapter 5. Troubleshooting ......................22

Frequently asked questions .......................22

Troubleshooting .......................................... 23

Appendix A. Lenovo limited warranty ..... 27

Warranty information ................................ 31

Appendix B. Product specific Notices..... 34

Energy star information ............................. 34

Electronic emissions notices ...................... 36

Appendix C. Specifications ...................... 39

Trademarks ................................................ 40

Index ........................................................... 41

i

Chapter 1. Getting to know your computer

Top view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 U300

3

2

4

5

1

Chapter 1. Getting to know your computer

 U300s

3

4

2

5

2