Lenovo C255 Computer User Guide PDF

Version 2.0

Machine type: 10063/7729

2010.11

Lenovo C2 Series User Guide

31046784

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.

Copyright Lenovo 2010.

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Contents

Important Safety Information

Chapter 1 Using the Computer Hardware .............................. 1 1.1 Front view of the computer ......................................................2

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

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

1.4 Computer stand ......................................................................5

1.5 Connecting your computer ......................................................6

1.6 Important information about using the computer ...................10

1.7 Keyboard and Mouse (wired) .................................................11

Chapter 2 Touch Screen Instructions ................................... 13 2.1 Method of touch screen calibration ........................................14

2.2 Normal operation ...................................................................15

Chapter 3 Using the Rescue System .................................... 17 3.1 OneKey Recovery ..................................................................18

3.2 Driver and Application Installation ..........................................18

3.3 System Setup ........................................................................19

3.4 System Backup .....................................................................20

3.5 System Recovery ..................................................................20

3.6 Create Recovery Disc ............................................................20

Chapter 4 Using the Computer Software ............................. 21 4.1 Lenovo Dynamic Brightness system ......................................22

4.2 Lenovo Eye Distance System ................................................23

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Chapter 5 Troubleshooting and Confirming Setup .............. 25 5.1 Troubleshooting Display Problems .........................................26

5.2 Troubleshooting Audio Problems ...........................................27

5.3 Troubleshooting Software Problems.......................................27

5.4 Troubleshooting Problems with Optical Drives and

Hard Disks .............................................................................28

5.5 Special considerations for troubleshooting Windows .............29

5.6 Performing Daily Maintenance Tasks ......................................30

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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.

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Using the Computer Hardware

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1.1 Front view of the computer

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Built-in microphone

Camera

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.)

Brightness down

Brightness up

LCD ON/OFF

Power button

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1.2 Left and right view of the computer

Attention: Be sure not to block any air vents on the computer. Blocked air vents may cause thermal problems.

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Memory card reader Microphone connector

USB ports (2) Optical drive slot

Headphone connector

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1.3 Rear view of the computer

USB ports (3) PS/2 keyboard connector

Ethernet connector Power connector

TV tuner port (selected models)

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1.4 Computer stand

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Use the stand to position the display to your preference.It can be adjusted from 5 forward to 20 backward.

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

Attention: The computer stand must remain installed at all times to ensure maximum system stability.

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1.5 Connecting your computer

Use the following information to connect your computer: Lookforthesmallconnectoriconsonthebackofyourcomputer.Matchthe

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 keyboard cable to the appropriate keyboard connector (PS2 connector or USB connector).

1.5.3 Connect the mouse cable to the appropriate mouse connector (USB connector).

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1.5.4 If you have audio devices, attach them using the following instructions:

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Microphone Use this connector to attach a microphone (purchased separately) to your computer when you want to record sound or if you use speech-recognition software.

Headphone Use this connector to attach headphones (purchased separately) to your computer when you want to listen to music or other sounds without disturbing anyone.

1.5.5 If you have powered speakers with an adapter:

(This picture is only a sketch print, it does not show the actual figure of the speaker)

a. Connect the cable that runs between the speakers if necessary. On some speakers, this cable is permanently attached.

b. Connect the adapter cable to the speaker if necessary. On some speakers, this cable is permanently attached.

c. Connect the speakers to the Headphone port on the computer.

d. Connect the adapter to the power source.

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1.5.6 If you have powered speakers without an adapter:

(This picture is only a sketch print, it does not show the actual figure of the speaker)

a. Connect the cable that runs between the speakers if necessary. On some speakers, this cable is permanently attached.

b. Connect the cable to the speaker if necessary. On some speakers, this cable is permanently attached.

c. Connect the speakers to the Headphone port on the computer.

d. Connect the plug to the power source.

Note: Some models are not equipped with external speakers.

1.5.7 Connect any additional devices that you have. Your computer might not have all connectors shown.

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TV

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USB connector Use this connector to attach a device that requires a USB connection.

Network adapter connector

Use this connector to attach the computer to an ethernet-type local area network

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TV-Tuner connector (IEC type)

Only supported on systems with optional TV tuner card (Some models are equipped with this connector).

TV antenna connector (F type)

To connect the signal input cable for CATV (Some models are equipped with this connector).

1.5.8 Connect the power cords properly to grounded electrical outlets.

1. Plug the power adapter cord into the back of the computer.

2. Plug the power cord into the AC adapter.

3. Plug the power cord into an AC power source.

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1.5.9 If your computer is equipped with a Memory Card Reader Connector, it is able to read/write data from:

MS/MS Pro/MMC/SD/SDHC

1.6 Important information about using the computer

Press the power button on the bottom right of the screen to turn on the computer.

Hold the computer tightly when you carry it.

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1.7 Keyboard and Mouse (wired)

LVT

LVT

LVT After entering Windows, press this key to launch the LVT (Lenovo Vantage Technology) program, Lenovos pre-loaded Home PC software. In addition to its own functions, the LVT program will allow you to start other Windows compatible software, specially configured to run on this model of computer.

Notes:

SomemodelsarenotequippedwiththeLVTprogram.

TheLVTkeyonthekeyboardisdisabledinthemodels withouttheLVTprogram.

F2 Your computer has the Lenovo Rescue System installed.To learn more about this program, repeatedly press and release the F2 key once turning on the computer until the Lenovo Rescue System open.

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Chapter Touch Screen Instructions

This chapter contains the following topics:

Method of touch screen calibration Normal operation

Attention: Only some models are equipped with touch screen.

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A touch screen is a computer display screen that is also an input device. The screens are sensitive to pressure; allowing a user to interact with the computer by touching pictures or words on the screen.

Attention:

Thiscomputerisequippedwitharesistivetouchscreenpanelcoated with a thin metallic electrically conductive and resistive layer that causes a change in the electrical currents that are registered as touch events and sent to the controller for processing. The resistive layer can be damaged by sharp objects.

Touchtheresistivetouchscreenwithyourfingersonly.Donotusea stylus to touch the resistive touch screen panel.

Thecursormaynotmovequicklywhenitisdragged.

ThetouchscreendoesnotfunctioninRescueSystemmode.

2.1 Method of touch screen calibration

Note: The touch screen must be calibrated prior to use.

1. Click Start All programs IdeaCom TSC to launch the touch screen calibration program.

2. Select a number of calibration points.

3. Touch the graphical target on the screen to calibrate the touch screen according to the prompt information.

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Note:

1. The more calibration points, the higher your touch accuracy.

2. Recalibratethetouchscreenwhenitisinaccurate.

3. To clean the touch screen thoroughly, shut down the computer and wipe the screen gently with a soft dry cloth.

2.2 Normal operation

Once the calibration sequence is complete, you are ready to begin normal operation and start sending touch events to the higher-level software.

1. A single touch on the screen will perform actions similar to the actions performed by clicking the left mouse button.

2. Press your finger to the screen until a circle appears to perform actions similar to the actions performed by clicking the right mouse button. A menu bar will pop-up after lifting your finger from the touch screen.

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Chapter Using the Rescue System

This chapter contains the following topics:

OneKey Recovery Driver and Application Installation System Setup System Backup System Recovery Create Recovery Disc

Attention: Using this program will result in a loss of data.

YoucanrecovertheCdriveofthecomputer to the factory default settings or to the last system backup status using OneKey Recovery. With this operation, all of the existing data on drive C will be lost, whereas the content and format of the other partitions of the hard disk drive will remain unchanged.

Ifyouwanttoinstallanoperatingsystemand back it up with OneKey Recovery, you must format the C partition in NTFS format and install the operating system on the C partition. Otherwise, the OneKey Recovery system cannot run.

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Note about the service partition:

The files and relevant data used by the rescue system are saved in the service partition. Deleting this partition will make the rescue system unusable. For more detailed information, see the following instructions:

By selecting Control Panel Administrative Tools Computer Management Disk Management, you can see the service partition, which must not be deleted.

Note: The recovery files and relevant data used by the rescue system are savedintheservicepartition.Iftheservicepartitionisdeletedordamaged by someone other than authorized Lenovo servicers, Lenovo will not be liable for any losses arising there from in any way.

3.1 OneKey Recovery

OneKey Recovery is an easy-to use application. You can use it to restore your computer to the system default or a previously backed up state.

Detailed Operation Procedure

1. Repeatedly press and release the F2 key once turning on the computer until the Lenovo Rescue System open, then select OneKey Recovery.

Note: SystemRecoverywilloverwriteallofthedataondriveC.Toprevent loss of data, be sure to back up relevant data before performing system recovery.

2. Follow the onscreen instructions to select the backup task you want to restore from and disk you want to install operation system, and press Next to start restoration.

3. Please wait during the process of system recovery. Do not interrupt the operation during the recovery process.

4. After the system is recovered successfully, the software prompts to restart the computer. Restart the computer and enter the system.

3.2 Driver and Application Installation

The Driver and Application Installation function in the rescue system provides a way for the user to conveniently re-install all of the Lenovo applications and drivers that were shipped with your Lenovo hardware.

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Method 1: Automatic Installation Repeatedly press and release the F2 key once turning on the computer until the Lenovo Rescue System open, then select Drivers and Application Installation.

Follow the screen prompts to install the Lenovo Drivers and Application Installation. Click Install to start installing the Lenovo Drivers and Application Installation.

The system will restart. After the system has restarted, the installation process will continue until completion.

Method 2: Manual Installation In the Windows system, Click Start All Programs Lenovo Lenovo Drivers and Application Installation. After starting the procedure, install all the drivers and software manually according to the prompts.

Notes:

1. Itisrecommendednottoinstallthesoftwarewhichisalreadyonthe computer.

2. Beforeaccessingtheoperatingsystem,makesurethattheDriversand Application installation has been installed automatically. After that, the manual installation function can be used.

3.3 System Setup

System Setup configures the network configuration for the Lenovo Rescue System to ensure your Rescue System can connect to internet. In addition, System Setup sets and manages all passwords for the Lenovo Rescue system.

3.3.1 Launch Repeatedly press and release the F2 key once turning on the computer until the Lenovo Rescue System open, then select System Setup.

3.3.2 Network Settings Depending on the network access mode of the computer, select ADSL or LAN Connection in the network connection modes.

1. If you select ADSL input the username and password of the ADSL connection.

2. If you select LAN connection configure the IP address and proxy server of the LAN.

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3.3.3 Password Management Password Management allows you to set the password for Lenovo Rescue System and manage it.

The default password is blank.

Set a password when you access the Password Management for the first time. If you dont want to set a password, access the system directly and operate accordingly.

3.4 System Backup

Back up your system partition to an image file. In case of a system failure, you can restore your system from this image file.

In the Windows system, click Start All Programs Lenovo Lenovo Rescue System. After starting the procedure, click System Backup to back up your system partition according to the prompts.

3.5 System Recovery

Reboot your computer into the system recovery environment. You can choose to restore to a system backup point or the initial state.

3.6 Create Recovery Disc

Create a bootable recovery disc from current system. These recovery discs are used to boot your computer and will guide you through the entire restoration process.

In the Windows system, click Start All Programs Lenovo Lenovo Rescue System. After starting the procedure, click Create Recovery Disc to create a bootable recovery disc from current system.

Follow the screen prompts to create recovery discs.

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Chapter Using the Computer Software

This chapter contains the following topics:

Computer software instructions

Note: The interface and function of each of these features are subject to the actual software that was shipped with the computer model that you purchased.

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4.1 Lenovo Dynamic Brightness system

Lenovo Dynamic Brightness System can automatically detect the surrounding ambient brightness and will adjust display brightness accordingly. You can set the screen brightness to a comfortable level for different environments. You can also set the display delay time to automatically turn off the display when you are away from the computer.

Note: TheAutoSwitchDisplayfunctioncannotbeusedwhenyour computer is in standby mode, sleep mode or turned off.

Note: This function applies only to the computer equipped with a Lenovo PC camera and is available only after the camera is installed.

Before using this software, do the following:

1) Click Start All Programs Lenovo USB2.0 UVC Camera vmcap.

2) Select Options Preview from the pop-up window to display the image in the video capture window.

Note: IfthereisnoimagedisplayintheAMCAPvideocapturewindow, please confirm that preview in the options has been checked.

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3) Confirm that Devices Lenovo USB2.0 UVC Camera has been checked. If there are other devices in this option, do not check them. Only choose the Lenovo USB2.0 UVC Camera device, and the window should display the camera image. An image, which is caught by Lenovo PC camera, will be displayed in the video capture window. Adjust the position and pitch angle of the camera to ensure the whole face is displayed in the video capture window.

To use this software, do the following:

Click Start All Programs Lenovo Lenovo Dynamic Brightness system.

The default setting has been pre-selected. You can adjust the brightness and display delay time according to your needs.

4.2 Lenovo Eye Distance System

Lenovo Eye Distance System can automatically detect the distance between you and the display. It will alert you automatically when you sit too close to the display. You can also set viewing distance as well as the time interval beyond which a warning will pop up.

Note: This function applies only to the computer equipped with a Lenovo PC camera and is available only after the camera is installed.

To use this software, do the following:

Click Start All Programs Lenovo Lenovo Eye Distance System.

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The default setting has been pre-selected. You can adjust the viewing distance according to your needs.

Notes:

1. Ensure the lens of the camera is exposed and not covered.

2. Ensure your eyes are exposed and not covered.

(The function that detects the distance between the user and monitor is based on the position of the users eyes. Therefore, if the eyes are covered or there is a strong reflection, the distance detection may be affected.)

Wear glasses may affect the accuracy of the face image verification.

3. The limitation of the distance detection by the camera:

The minimum distance : about 20 centimters (7.90 inches)

The maximum distance : about 70 centimeters (27.55 inches)

The pitch angle (the face rotary angle scope in the vertical):

Elevation angle: 20 degrees

Depressionangle:30degrees

The horizontal rotary angle (the face rotary angle scope in the horizontal): -20 ~ +20 degrees

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Chapter Troubleshooting and Confirming Setup

This chapter contains the following topics:

Troubleshooting and Problem Resolution

Note: ThedescriptionoftheTV-Tunercard in this manual is only used for the machines whichhavetheTV-Tunercard.Itdoesnot apply to those machines that do not have a TV-Tunercard.

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Solving Problems

Follow these tips when you troubleshoot your computer:

Ifyouaddedorremovedapartbeforetheproblemstarted,reviewthe installation procedures and ensure that the part is correctly installed.

Ifaperipheraldevicedoesnotwork,ensurethatthedeviceisproperlyconnected.

Ifanerrormessageappearsonthescreen,writedowntheexactmessage.This message may help support personnel diagnose and fix the problem(s).

Ifanerrormessageoccursinaprogram,seetheprogramsdocumentation.

Note: The procedures in this document were written for the Windows default view, so they may not apply if you set your Lenovo computer to the Windows Classic view.

5.1 Troubleshooting Display Problems

Problem: Blank screen or no image is displayed on the monitor.

Troubleshooting and problem resolution:

Check that the LCD screen has been turned on; If not, press the LCD On/Off button to turn on the LCD.

If still cannot solve the problem, contact to Lenovo Customer Service.

Problem: You need to change display property settings.

Setting display background and icon properties:

1. Right-click the desktop anywhere except over an icon, then select Personalize from the pop-up menu.

2. From here, select the appropriate options to:

Changethedesktopbackground;

Selectascreensaver;

Selectcolorsandappearanceoptionsforiconsandcharacters;

SetresolutionandcolorsbyusingDisplay Settings options.

Problem: Ripple on screen.

Troubleshooting and problem resolution:

1. Check for devices located less than one meter from the computer such as refrigerators, electric fans, electric dryers, UPSs, regulators, fluorescent lamps or other computers that may be generating magnetic interference.

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2. Move any interfering devices away from the computer.

3. If the problem persists, consult with Lenovo Service.

5.2 Troubleshooting Audio Problems

Problem: No sound from integrated speakers.

Troubleshooting and problem resolution:

AdjustthewindowsvolumecontrolDouble-clickthespeakericoninthe lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted. Adjust the volume, bass, or treble controls to eliminate distortion.

Reinstalltheaudiodriver.

DisconnectheadphonesfromtheheadphoneconnectorSoundfromthe speakers is automatically disabled when headphones are connected to the computers side-panel headphone connector.

Problem: No sound from headphones.

Troubleshooting and problem resolution:

ChecktheheadphonecableconnectionEnsurethattheheadphonecableis securely inserted into the headphone connector.

AdjustthewindowsvolumecontrolClickordouble-clickthespeakericonin the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.

5.3 Troubleshooting Software Problems

Problem: You are unable exit a running program normally.

Troubleshooting and problem resolution:

1. Open the Task Manager window by pressing Ctrl, Alt and Delete at the same time.

2. Select the Application tab, select the problem program, and then click the End Task button.

Problem: You need to install or uninstall a program.

Problem resolution:

During installation never abort the install process by powering the system off or through other drastic means. This can cause system program disorder or even failure during system initialization.

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During the uninstall process, never directly delete the files or folders. This is harmful to the system, and might cause a system-wide malfunction.

Use the following procedure to properly uninstall programs:

1. Back up all documents and system settings related to the program before removing it.

2. If the program has its own uninstaller, run it directly to uninstall the program.

3. If the program does not have its own uninstaller, then select Control Panel from Start menu.

4. From the Control Panel, choose Programs and Functions.

5. Find the applicable program from the Programs and Functions dialog box and then select Uninstall/Modify.

6. Perform the instructions displayed to uninstall the software.

5.4 Troubleshooting Problems with Optical Drives and Hard Disks

Problem: The Optical drive is unable to read a CD/DVD.

Troubleshooting and problem resolution:

1. Check to determine if there is an optical drive icon in the resource manager of the operating system. If not, restart your computer. If there is still no icon, contact Lenovo Service. Otherwise, continue with the next step of this procedure.

2. Confirm that the CD/DVD has been properly placed in the drive. If not, reload the CD or DVD. Otherwise, continue with the next step of this procedure.

3. Check the specifications that came with your computer to confirm that this optical drive is supposed to be able to read this type of CD or DVD.

4. If the CD/DVD cannot be read, replace it with a known good CD/DVD such as one that was shipped with the computer.

5. If the known good CD cannot be read, visually check the operating side of the CD/DVD for defects.

Problem: The capacity of the hard disk, as indicated by the system, is less than the nominal capacity.

Troubleshooting and problem resolution: For computers equipped with the OneKey Recovery feature, the system recovery feature needs to occupy some hard disk space. This may account for the apparent hard disk capacity deficit.

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Further Technical Explanation: The nominal capacity of the hard disk is expressed in the decimal system, 1000 bytes. But the actual hard disk capacity is expressed in the binary system as 1024 bytes (For example, the nominal capacity 1G is 1000M, while the actual capacity 1G is 1024M).

The capacity of the hard disk shown in Windows can be calculated according to the calculations in the following example:

The nominal capacity of the hard disk is 40G, while its actual capacity should be: 40 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 37G.

If the Service partition of 3G - 3 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 2.79G is subtracted, the capacity of the hard disk shown in the system can be obtained.

The capacity of the hard disk as calculated using this method may be slightly different from the actual capacity due to the rounding of totals.

5.5 Special considerations for troubleshooting Windows

Record the following information that may later be useful in troubleshooting system problems:

1. The serial number of the software. The serial number was shipped with the computer and was provided separately by the manufacturer. The Help Center is unable to retrieve this number.

2. The drivers for this computer model only support the Windows 7 system.

3. When you use the Windows Media Center to watch TV, be particularly attentive to the following:

Inthefollowingtwosituations,youmustre-saveachannellist:

a. When you change your TV signal from digital to analog, your saved channel list for digital TV is deleted. When you want to watch digital TV again, you must create and save a new channel list.

b. When you change your TV signal from analog to digital, your saved channel list for analog TV is deleted. When you want to watch analog TV again, you must create and save a new channel list.

Beforeyoucanwatchteletextprogramming,youmustsettheTVtunerinput signal to analog.

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5.6 Performing Daily Maintenance Tasks

Cleaning the computer components

Because many of the computer components consist of sophisticated integrated circuit boards, it is very important to periodically clean around the computer to prevent dust buildup. The cleaning supplies you need in order to clean the components include: a vacuum cleaner, a soft cotton cloth, clear water (pure water preferred) and cotton swabs.

Attention: Before you clean your computer, disconnect the computer from the electrical outlet. Clean your computer with a soft cloth dampenedwithwater.Donotuseliquidoraerosolcleaners,whichmay contain flammable substances.

Note: To avoid damaging the computer or display, do not spray cleaning solution directly onto the display. Only use products specifically designed for cleaning displays, and follow the instructions that are included with the product.

The following are general methods for cleaning the components:

Youcanuseasoftclothtoremovedustonthesurfaceofthecomputer,the monitor, the printer, the speakers and the mouse.

Youcanuseavacuumcleanertocleaninotherwiseinaccessiblecorners.

Tocleanthekeyboardthoroughly,shutdownthecomputerandscrubitgently with a wet cloth.

Donot use the keyboard until it is dry.

Do not do any of the fo