Lenovo 3109, 4743 K430, 10086 manual Performing Daily Maintenance Tasks

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TV again, you must create and save a new channel list.

You must set the TV tuner input signal to analog before you can watch

Teletext programming.

3.6Performing 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 the computer to prevent dust buildup. The cleaning supplies you need to clean the components include: a vacuum cleaner, a soft cotton cloth, clear water (preferably purified or distilled water) and cotton swabs.

Attention: Before you clean your computer, disconnect the computer from the electrical outlet. Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which may 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 included with the product.

The following are general methods for cleaning the components:

You can use a soft cloth to remove dust on the surface of the computer, the monitor, the printer, the speakers and the mouse.

You can use a vacuum cleaner to clean in otherwise inaccessible corners.

To clean the keyboard thoroughly, shut down the computer and scrub it gently with a wet cloth. Do not use the keyboard until it is dry.

Do not do any of the following:

Allow water to enter the computer.

Use a heavily dampened cloth.

Spray water directly onto the surface of the monitor or inside the computer.

LCD monitors should be cleaned daily. Use a dry cloth to brush dust from the monitor and keyboard every day. Keep all surfaces clean and free of grease stains.

28User Guide

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Contents IdeaCentre K4 Series Important Safety Information Page Contents Hardware Replacement Guide This chapter contains the following topics Chapter Using the Computer HardwareFront view of the chassis Rear view of the chassis User Guide User Guide Basic connector instructions Connecting your computerLine-in connector on a stereo system or other Sound configuration is as follows 7.1 Audio configuration instructionsConfigurations are as followings 5.1 Audio configuration instructionsDVI-HDMI Hot-swappable hard disk selected models only Wired keyboard selected models onlyUser Guide User Guide Power Control Switch selected models only User Guide Auto Turbo User Guide Chapter Using the Rescue System Driver and Application Installation OneKey RecoveryMethod 1 Automatic Installation System SetupMethod 2 Manual Installation Network SettingsSystem Recovery System BackupCreate Recovery Disc Password ManagementTroubleshooting and Chapter Confirming Setup Troubleshooting Display Problems Solving ProblemsTroubleshooting Software Problems Troubleshooting Audio ProblemsTroubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows Performing Daily Maintenance Tasks Chapter Hardware Replacement Guide Overview Safety information for replacing CRUsTools required Additional information resourcesHandling static-sensitive devices Identifying internal components LocationsPCI express X 16 adapter slots Identifying parts on the system boardMicroprocessor fan header 12V power connector Battery Microprocessor and heat sink Pre-disassembly instructions Replacing hardwareGeneral information To remove the computer cover Removing the computer coverTo remove the front bezel Removing the front bezelTo replace a memory module Replacing a memory moduleTo replace a hard disk drive Replacing a hard disk driveTo replace an optical drive Replacing an optical driveTo replace a graphics card Replacing a graphics cardUser Guide User Guide To replace the TV-Tuner card Replacing the TV-Tuner cardUser Guide To replace the keyboard Replacing the keyboard and mouseDeclaration AppendixTrademarks Energy Star StatementUser Guide User Guide