Lenovo 57311365, H520S, H505S, 57312710, 4746, 3230 Overview, Safety information for replacing CRUs

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Overview

This guide is intended to be used by customers who are replacing Customer Replaceable Units (CRUs) as well as trained service personnel who are replacing Field Replaceable Units (FRUs). In this guide, CRUs and FRUs will often be referred to as parts.

Note: Trained service personnel should refer to the Hardware Maintenance Manual (HMM) for parts ordering information.

This guide does not include procedures for all parts. It is expected that cables, switches, and certain mechanical parts can be replaced by trained service personnel without the need for step-by-step procedures.

Note: Use only parts provided by Lenovo®.

The description of the TV-Tuner card in this manual applies only to computer models that have a TV-Tuner card installed. It does not apply to computer models that do not have a TV-Tuner card installed.

This guide contains procedures for replacing the following parts:

•Memory modules

•Hard disk drive

•Optical drive

•Keyboard, Mouse (wired)

Safety information for replacing CRUs

Do not open your computer or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. If you no longer have this copy of the Safety and Warranty Guide, you can obtain one online from the Support Web site at http://support.lenovo.com.

28User Guide

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Contents H5s Series Important Safety Information Page Contents Hardware Replacement Guide Using the Computer Hardware Front view of the chassis Rear view of the chassis User Guide Connecting your computer Connector Description Microphone Basic connector instructionsAudio configuration instructions Connecting the power cord Wired keyboard selected models only How to play Blu-ray Discs selected models onlyConnecting to the Internet Using Windows Switching between apps Switching between the main Windows 8 interfacesCharms Bar Shutting down the computerClosing an app Opening other system programsWindows Help and Support User Guide Using the Rescue System OneKey Recovery Driver and Application Installation Method 1 Automatic InstallationMethod 2 Manual Installation User Guide Troubleshooting Confirming Setup Troubleshooting Display Problems Solving ProblemsTroubleshooting Audio Problems Troubleshooting Software Problems Troubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows Performing Daily Maintenance Tasks Bios setup utilityUser Guide Hardware Replacement Guide Overview Safety information for replacing CRUsTools required Additional information resourcesLocating components and connectors LocationsHandling static-sensitive devices Internal components Power supply Identifying parts on the system board Microprocessor and heat sink Memory slots Replacing hardware Pre-disassembly instructionsGeneral information Removing the computer coverUser Guide To remove the front bezel Removing the front bezelTo replace an optical drive Replacing an optical driveUser Guide To replace the hard disk drive Replacing the hard disk driveReplacing a memory module To replace a memory module To complete the part installation Completing the installationReplacing the keyboard and the mouse To replace the keyboardUser Guide Declaration AppendixTrademarks 4746 3230 Energy Star StatementEnabling ErP compliance mode
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57312710, 31502552, 3230, 2561, 57311365 specifications

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