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Lenovo A720 manual Hardware components, Cpu

Models: A720

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Hardware components

The following illustration shows the components that make up your computer.

1.	System fan		17.	Bluetooth module

2.	Scalar board		18.	Power switch board

3.	Hard disk drive bracket		19.	Front function board

4.	Hard disk drive		20.	Battery

5.	Hard disk drive rubbers		21.	Solid state disk

6.	CPU		22.	TV-tuner card

7.	Base cover		23.	Glass

8.	Optical drive		24.	Panel frame

9.	Optical drive bracket		25.	LED panel

10.		Motherboard	26.	Middle frame

11.		Chassis	27.	Rear cover

12.		Speakers	28.	Rear cover deco

13.		Hinge	29.	Touch control board

14.		Optical drive eject board	30.	Converter

15.		Camera	31.	Heat-sink

16.		WLAN card

24IdeaCentre A720Hardware Maintenance Manual

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Lenovo A720 manual Hardware components, Cpu

Contents

IdeaCentre A720 Hardware Maintenance Manual Page IdeaCentre A720 Hardware Maintenance Manual Page Contents Iv IdeaCentre A720Hardware Maintenance Manual Important Safety Information About this manualIdeaCentre A720Hardware Maintenance Manual Safety information General safetyElectrical safety IdeaCentre A720Hardware Maintenance Manual Safety inspection guide Handling electrostatic discharge-sensitive devicesSafety notices Grounding requirementsDo not To Connect To Disconnect≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Type IdeaCentre A720 SpecificationsGeneral information EnvironmentIdeaCentre A720Hardware Maintenance Manual General Checkout IdeaCentre A720Hardware Maintenance Manual Viewing and changing settings Using the Setup UtilityStarting the Lenovo Bios Setup Utility program Using passwordsAdministrator Password Setting, changing, or deleting an Administrator passwordSetting, changing, or deleting a Power-On Password Enabling or disabling a device Select Save changes and Exit from the menuSelecting a startup device Selecting a temporary startup deviceSelecting or changing the startup device sequence Exiting the Lenovo Bios Setup Utility program IdeaCentre A720Hardware Maintenance Manual Power Supply Problems Symptom-to-FRU IndexHard disk drive boot error Error FRU/ActionPost error codes Undetermined problemsPost Error Message Description/Action Locating connectors, controls and components Font viewLeft and right view Rear view Hardware components CPUIdentifying parts on the motherboard TV-Tuner card connector Battery Identifying parts on the back of the LED panel IdeaCentre A720Hardware Maintenance Manual Pre-disassembly instructions Replacing hardwareGeneral information Replacing the keyboard and mouse Replacing the power cord or power adapterTo replace the power cord and power adapter To replace the keyboard and mouseRemoving the base cover To remove the base coverReplacing the hard disk drive To replace the hard disk driveReplacing hardware To replace a memory module Replacing a memory moduleReplacing the system fan To replace the system fanReplacing the heat-sink To replace the heat-sinkReplacing the CPU To replace the CPUReplacing hardware Replacing the optical drive To replace the optical driveReplacing hardware To replace the solid state disk Replacing the solid state diskReplacing the optical drive eject board To replace the optical drive eject boardReplacing the motherboard To replace the motherboardIdeaCentre A720Hardware Maintenance Manual Replacing the speaker system To replace the speaker systemIdeaCentre A720Hardware Maintenance Manual Replacing the TV tuner card To replace the TV tuner cardReplacing the battery To replace the batteryRemoving the hinge from the chassis To remove the hinge from the chassisIdeaCentre A720Hardware Maintenance Manual Removing the rear cover To remove the rear coverReplacing the scalar board To replace the scalar boardReplacing hardware Replacing the touch control board To replace the touch control boardReplacing the converter board To replace the converter boardReplacing the power switch board To replace the power switch boardReplacing the Bluetooth module To replace the Bluetooth moduleReplacing the Wlan card To replace the Wlan cardReplacing the camera To replace the cameraReplacing the front function board To replace the front function boardReplacing the LED panel To replace the LED panelIdeaCentre A720Hardware Maintenance Manual FRU lists Item # FRUs Service Part Number FRU MotherboardSolid state disk MemoryHard disk drive Optical disk driveBluetooth module Power SupplyRemote control Heat-sinkTouch control board KeyboardPower cords MouseMechanical Panel Back Light CableIdeaCentre A720Hardware Maintenance Manual Advanced configuration and power interface Acpi Bios Additional Service InformationPower management Automatic Power-On features