Acer 4320, 4720G, 4720Z manual Removing the Keyboard and LCD Module

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13.Remove the two screws fastening the wireless LAN card.

14.Take out the wireless LAN card from the main unit.

Removing the Keyboard and LCD Module

1.Remove the eight screws fastening the keyboard and LCD module to the main unit.

2.Turn the notebook over and gently pry up and remove the switch board cover as shown.

3.Lift the keyboard up and towards you.

4.Disconnect the keyboard cable from the main board and remove the keyboard from the main unit.

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Chapter 3

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Contents Aspire 4720G/4720Z/4720/4320 Series Service Guide Date Chapter Updates Revision HistoryCopyright DisclaimerConventions Screen MessagesPreface Page Features System SpecificationsChapter Audio Storage subsystemInput devices CommunicationEnvironment System Block Diagram Nestos System Block DiagramBoard Layout Top ViewBottom View PJ1Front View Your Acer Notebook tourIcon Description Closed Front View Left View Right View Rear viewIcon Description Ventilation slot After prolonged useIndicators Base viewIcon Function Description Easy-Launch ButtonsHDD Touchpad Basics Launch key Default applicationFunction Left Button Main Touchpad Way Scroll Right Button Using the Keyboard Desired Access Num Lock On Num Lock OffLock Keys and embedded numeric keypad Lock Key DescriptionWindows Keys Key Icon DescriptionHot Keys Technology onEuro symbol Special KeyUS dollar sign Hot Key Icon Function DescriptionAcer Empowering Technology Empowering Technology passwordAcer eNet Management Acer ePower Management AC Mode Adapter modeDC Mode Battery mode To create new power planBattery status Acer eAudio Management Acer ePresentation Management Acer eDataSecurity ManagementChapter Acer eLock Management Acer eRecovery Management Acer eSettings Management Changing the Acer Crytal Eye webcam resolution Using the Acer Crytal Eye webcamGetting to know your Acer Cystal Eye webcam Launching the Acer Crytal Eye webcamUsing the System Utilities Acer GridVista dual-display compatibleLaunch Manager Hardware Specifications and Configurations ProcessorCPU Fan True Value Table Second Level CacheSystem Memory Memory Combinations2GB 0MBLAN Interface System Vram and Vbios OptionsModem Interface Wireless Module 802.11b/g, 802.11a/b/g, 802.11a/g/n Bluetooth InterfaceHard Disk Drive Interface Audio Interface DVD-Dual InterfaceUSB Port Battery Express Card SlotSystem Board Major Chips KeyboardLCD 14.1 inch LCD InverterSystem Power Management AC AdapterSystem Utilities Bios Setup Utility Main Security BootNavigating the Bios Utility Information Parameter DescriptionMain Shows extended memory sizeParameter Description Format/Option Set Supervisor Password SecurityClear or Set Setting a PasswordParameter Description Option Removing a Password Changing a PasswordSetup Warning Invalid Password Continue Boot IDE HDD Hitachi HTS541616J9SA00-SExit Exit Saving ChangesBios Flash Utility Machine Disassembly and Replacement General Information Before You BeginDisassembly Procedure Flowchart HDDScrew List Description Part NumberRemoving the Battery Pack Removing the HDD Module Removing the ODD Module Removing the Wireless LAN CardRemoving the Memory Removing the Keyboard and LCD Module Page Disassembling the Main Unit Disassembling the Lower Case AssemblyRemoving the Main Board Disassembling the Upper Case Assembly Removing the Bluetooth ModuleRemoving the Audio Board Removing the SpeakersRemoving the Power Board Disassembling the Main BoardRemoving the Touchpad Cable Removing the Thermal Module and System FanRemoving the CPU Removing the Modem CardDisassembling the LCD Module Disassembling the HDD Module Disassembling the External ModulesDisassembling the ODD Module Chapter Troubleshooting Symptoms Verified Go ToSystem Check Procedures External Diskette Drive CheckExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckPower System Check Memory checkCheck the Power Adapter Check the Battery Pack Touchpad CheckPower-On Self-Test Post Error Message Index of Error Messages Error Code ListError Message List Error Codes Error MessagesCmos Dimm CPU IDLCD No beep Error Messages FRU/Action in SequenceCRT Phoenix Bios Beep Codes Code Beeps Post Routine DescriptionChapter Code Beeps Post Routine Description Code Beeps Index of Symptom-to-FRU Error Message LCD-Related SymptomsIndicator-Related Symptoms Power-Related SymptomsPCMCIA-Related Symptoms Memory-Related SymptomsSpeaker-Related Symptoms Power Management-Related SymptomsKeyboard/Touchpad-Related Symptoms Peripheral-Related SymptomsModem-Related Symptoms Intermittent Problems Undetermined Problems DimmJumper and Connector Locations Top ViewBottom View FRU Field Replaceable Unit List Aspire 4720G/4720Z/4720/4320 Exploded Diagram Category Part Name and Description Acer Part NoWireless LAN Board 802.11BG Intel 3945BG Intel Wireless Wifi Link 4965ANGPower Board 65W Power Board 90WCASE/COVER/BRACKET Assembly Middle Cover Bluetooth Cable TP FFC TP Lower Case Assy W/RUBBERUpper Case Assy W/SPEAKER Base Door W/RUBBERDVD-RW Drive DVD/RW Super Multi Module DVD Super Multi Tray in HldsGSA-T20N LF W/O Bezel DVD Super Multi Drive 7530A Vista Tray DVD Super Multi Tray in Philips33.AHS07.003 White SWISS/G Keyboard 1415KB-FV2 89KS White Portuguese Keyboard 1415KB-FV2 88KSWhite US International Hebrew Keyboard 1415KB-FV2 88KS White Korean Keyboard 1415KB-FV2 89KSLCD Bracket W/HINGE R CCD Module 0.3M BisonCCD Module 0.3M Suyin LCD Module Assy 14.1 in Wxga WAntenna W/O CCD LCD Cable W/O CCDAntenna LCD Bezel Assy W/O CCD Antenna W/O CCD LCD 14.1 IN. Wxga LPL LP141WX1Mainboard Mainboard 960GML UMA W/CARD Card Readre Express Card W/O CPU Momery Memory1GB HYMP512S64CP8-Y5 LF Memory 512MB DDR II 667 Hynix SO-DIMM DDRII667 512MB