Lenovo C225 User manual

Version 1.0

Machine type: 10075/3078

10076/3079

10077/3094

10078/3095

2011.06

Lenovo

C2/C3 Series

User Guide

31500064

Important Safety Information

Before using this manual, it is important that you read and understand all of the

related safety information for this product. Refer to the Safety and Warranty Guide

that you received with this product for the latest safety information. Reading and

understanding this safety information reduces the risk of personal injury or damage

to your product.

Danger: Be aware of extremely hazardous or lethal situations.

Attention: Be aware of possible damage to programs, devices, or data.

Note: Pay attention to this important information.

Contents

Important Safety Information

Chapter 1 Using the Computer Hardware.............................. 1

1.1 Front view of the computer......................................................2

1.2 Left and right views of the computer........................................3

1.3 Rear view of the computer.......................................................4

1.4 Computer stand ......................................................................4

1.5 Connecting your computer ......................................................5

1.6 Important information about using the computer .....................8

1.7 Wired keyboard .......................................................................9

Chapter 2 Touch screen user instruction ............................. 11

2.1 Touch Screen Calibration.......................................................12

2.2 User Gesture Instructions for the Touch screen......................13

2.3 Attentions when using the Touch Screen ...............................21

Chapter 3 Using the Rescue System .................................... 23

3.1 OneKey Recovery..................................................................24

3.2 Driver and Application Installation ..........................................24

3.3 System Setup........................................................................25

3.4 System Backup .....................................................................26

3.5 System Recovery ..................................................................26

3.6 Create Recovery Disc ............................................................26

Chapter 4 Using the Computer Software ............................. 27

4.1 Lenovo Dynamic Brightness system ......................................28

4.2 Lenovo Eye Distance System ................................................29

2Contents

Chapter 5 Troubleshooting and Conﬁrming Setup.............. 31

5.1 Troubleshooting Display Problems .........................................32

5.2 Troubleshooting Audio Problems ...........................................33

5.3 Troubleshooting Software Problems.......................................33

5.4 Troubleshooting Problems with Optical Drives and

Hard Disks.............................................................................34

5.5 Special considerations for troubleshooting Windows .............35

5.6 Performing Daily Maintenance Tasks......................................36

Chapter

This chapter contains the following

topics:

Computer hardware introduction

Information on computer connections

Note: The descriptions in this chapter might

vary from your computer, depending on

computer models and conﬁgurations.

User Guide 1

Using the Computer Hardware

2User Guide

1.1 Front view of the computer

Built-in microphone

Camera

Power button

Built-in IR receiver (Only functional on models equipped with a IR receiver

module)

Hard disk drive indicator

Wireless LAN card indicator

LCD ON/OFF indicator (When turning on the LCD, the indicator light will be

off; when turning off the LCD, the indicator light will be solid on.)

Menu button

Direction button

LCD ON/OFF

User Guide

1.2 Left and right views of the computer

Attention: Be sure not to block any air vents on the computer. Blocked

air vents may cause thermal problems.

Memory card reader Microphone connector*

USB ports (2) Optical drive

Headphone connector

* Microphone connector:

The built-in speakers can be used independently without starting the computer so long as the power cord

is plugged in. Connect an external audio device (e.g., MP3 player) to the microphone connector with a

3.5mm audio cable. You can adjust the volume on the external audio device.

4User Guide

1.3 Rear view of the computer

Ethernet connector TV tuner port

USB ports (4) Power connector

1.4 Computer stand

Use the stand to position the display to your preference.It can be adjusted from 5˚

forward to 25˚ backward.

The stand provides stability to the computer; it is not a removable part.

User Guide

Attention: The computer stand must remain installed at all times to

ensure maximum system stability.

1.5 Connecting your computer

Use the following information to connect your computer:

• Lookforthesmallconnectoriconsonthebackofyourcomputer.Matchthe

connectors to the icons.

Note: Your computer might not have all of the connectors that are

described in this section.

1.5.1 Check the voltage rating before you connect the

equipment to an electrical outlet to ensure that the

required voltage and frequency match the available

power source.

If your computer uses an AC adapter:

Note: Use only the Lenovo provided AC adapter approved for use with this

device. Use of another AC adapter may cause a ﬁre or explosion.

1.5.2 Connect the USB keyboard and mouse to the USB

connectors.

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