Removing the Lower Cover | Acer 4745 instruction

Removing the Lower Cover

1.See “Removing the Battery Pack” on page 44.

2.Loosen the five (5) captive screws from the lower cover.

3.Remove the lower cover as shown.

46

Chapter 3

Image 56

Acer 4745 manual Removing the Lower Cover

Contents

Acer Aspire Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 107 Viii Acer Aspire 4745 Series Microsoft Windows 7 Environment Test Table of Contents Features Chapter Mini Card AudioStorage Optical Drive Dimensions and weight Power subsystemCommunication Privacy control Software Special keys and controlsInterface Environment WarrantyOptional Items System Block Diagram Intel Icon Description Your Acer Notebook tourFront View HDD Hdmi Closed Front ViewLeft View Right View Indicators Bottom View Icon Function Description TouchPad Basics Function Left Button Right Button Main TouchPad Lock key Description Using the KeyboardLock Keys and embedded numeric keypad Windows Keys Key Description Hot Keys Hotkey Icon Function Description Hardware Specifications and Configurations SpecificationCore Bus Cache Package Acer P/N Speed Size System Memory Specification 4GBMemory Combinations Slot Total Memory 0MB Bluetooth Specification Wireless Module SpecificationLAN Module Specification Hard Disk Drive Interface Specification Super-Multi Drive Module Audio Interface Specification Power and Keyboard Controller Specification Battery Specification CellCard Reader Specification SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A Bios Setup Utility Navigating the Bios Utility Aspire 4745 Bios InformationParameter Description Uuid Main Parameter Description Format/Option Disabled or SecurityParameter Description Option Clear or Set Setting a Password Removing a Password Changing a Password Continue Boot USB Cdrom Exit Cmos Bios Flash Utilities DOS Flash Utility USB HDDPage WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD Password Removing Bios Passwords Cleaning Bios Passwords Using Boot Sequence Selector Using DMITools InputOutput Input dmitools /wu Using the LAN MAC Eeprom Utility Chapter Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part Number Screw List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart Removing the Battery Pack Removing the SD dummy card Removing the Lower Cover Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*4L Step Size Quantity Screw Type ODD Bracket M2.0*3L Removing the Dimm Modules Removing the Wlan Module Step Size Quantity Screw Type Wlan Board M2.0*3 Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3.0*4L Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Keyboard Step Size Quantity Screw Type Chapter Removing the Upper Cover Chapter Remove the eight 8 screws from the top cover Removing the Power Switch Board Removing the Function Board Step Size Quantity Screw Type Function Board M2.0*3widehead Removing the Left Speaker Module Step Size Quantity Screw Type Speaker Module M2.5*4L Removing the USB Board Step Size Quantity Screw Type USB Board M2.5*4L Lift the USB Board upward away from the chassis Removing the Bluetooth Module Step Size Quantity Screw Type Bluetooth Board M2.3*3L Removing the LCD Module Removing the Mainboard Step Size Quantity Screw Type LCD Module M2.5*6.5 Chapter Step Size Quantity Screw Type Mainboard M2.5*4L Removing the Thermal Module Removing the CPU Removing the RTC Battery Removing the WiFi Antenna Cable Removing the Right Speaker Step Size Quantity Screw Type Right Speaker 3widehead Module Removing the DC-In Cable Step Size Quantity Screw Type DC-In Cable M2.5*4 LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*4 Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.3*3 Removing the FPC Cable Step Size Quantity Screw Type LCD Hinges M2.5*3 Removing the Microphone ModuleRemoving the Hinges Removing the Antennas Chapter LCD Module Reassembly Procedure Replacing the MIC and WiFi Antennas Replacing the Microphone Module Replacing the FPC Cable Replacing the LCD Panel Replacing the Webcam Replacing the LCD Bezel Replace the two screws and screw caps as shown Main Module Reassembly Procedure Replacing the DC-In Cable Replacing the LCD Module Replacing the Right Speaker Replacing the RTC Battery Replacing the CPU Replacing the Thermal Module Replacing the Mainboard Chapter Connect the right speaker cable Chapter Replacing the Bluetooth Module Replacing the USB Board Replacing the TouchPad Bracket Replacing the Left Speaker Module Replacing the Power Switch Board Replacing the Function Board Replacing the Upper Cover Page 100 Chapter Replacing the Keyboard Replacing the Hard Disk Drive Module 102 Chapter Insert the Wlan board into the Wlan socket Replacing the Wlan BoardReplacing the Dimm Modules Replacing the ODD Module Replacing the Lower Covers Replacing the Battery Pack Replacing the Dummy Cards Common Problems Symptoms Verified Go To Power On Issue Computer Shutsdown Intermittently No Display Issue No Post or Video Random Loss of Bios Settings Abnormal Video Display LCD Failure Built-In Keyboard Failure TouchPad Failure Internal Speaker Failure Select Set up microphone Sound ProblemsMicrophone Problems Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit Failure External Mouse Failure Other Failures Dimm Intermittent ProblemsUndetermined Problems Post Code Range Phase Post Codes Peimemoryinstall PEI Peiswitchstack PEIPeienterrecoverymode PEI Peirecoverymediafound PEI Bdsinstallhotkey BDS Bdsbeforepciioinstall BDSBdsenumerateallbootoption BDS Dxesmmcontrolerinit DXE Bdsendofbootselection BDS Bdsentersetup BDSBdsenterbootmanager BDS Bdsbootdeviceselect BDS Smmacpienablestart SMM Smmacpienableend SMMSmmacpidisablestart SMM Smmacpidisableend SMM 126 Chapter Top View Description Desciption Mini Card Wlan PJ2 Power Jack LANRTC FAN Conn Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Description Location G1 / G2 Clear Cmos Jumpers WiFi Bay Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery from USB Storage FRU Field Replaceable Unit List Description Acer P/N Acer Aspire 4745 Exploded DiagramsLCD Assembly Chassis Assembly HDD-BKT ZQ1 ZR6FBZR6004,REV MBSG,PARK,SAM,BT WO CpuassyWwan Minicard BEVT-22A23T0 STN BSQ Acer Aspire 4745 FRU List Category Partname Description Acer Part Number ZY9 Bluetooth Speaker L Lower Case Assy W/FFC *2, DC ZQ1 Base SUB JV/65W ODD Bracket ZQ1 ODD BKT MK2565GSX-EUL S.P Sata 8MB LF F/WGJ001J Keyboard ZQ1 K/BUI S.P Mainboard Mainboard UMA HM55 W/CARD ZQ1 MBUMA,BT,WO Heatsink Thermal Module for 35W UMA ZQ1 Thermal Module Screw List Category Partname Description Acer Part Numeber Chapter 145 Country Acer Description Appendix aAcer Aspire 4745 Series AS4745G-624G64Bn EM W7HP64EMATTH1 MC S2.PSL0 LX.PSM Emea Gctwn LX.PSM TWN LX.PSM AAPLX.PSM China S2.PSM LX.PSR Emea LX.PSR AAP Model Country Acer Part No VGA Chip AS4745G Thailand LX.PSL02.018 Ci5520M AS4745G S2.PSL02.003 Ci5430M LX.PSM0C.00 ParkxtLX.PSM0C.01 UMA AS4745 Malaysia LX.PSR0C.011 Ci3330M Model Country Acer Part No Memory LX.PSL0C.00 SO2GBIII10 SO4GBIII10SO4GBIII10 SO2GBIII SO1GBIII10 LX.PSM0C.01 SO2GBIII10 LX.PSM0C.00 SO1GBIII10 LX.PSM0C.00 SO2GBIII10 SO1GBIIILX.PSM0C.00 SO2GBIII10 SO2GBIII10 SO1GBIII LX.PSR0C.01 SO1GBIII10LX.PSR0C.01 SO2GBIII10 LX.PSR0C.01 SO2GBIII10 SO1GBIII AS4745 Thailand 163 Appendix a 164 Test Compatible Components Appendix B Microsoft Windows 7 Environment Test Vendor Description Panasoni SamsungSanyo Simplo Bluetooth Sony Intel PMDP600 Intel HDD Toshiba 4KSBRSeagate MK3265GSX Sata 8MB LF F/WGJ002J AC4TA1 Acer NLED14 AUOWxgags NLED14 CMO SO1GBIII Elpida SO2GBIII ElpidaSO1GBIII Hynix SO2GBIII Hynix KN.1GBBB.03 KN.2GBBB.02SO1GBIII Smart KN.1GBBS.00 NBDRW4 Panasoni NSM8XS PanasoniNBDCB4 Plds NSM8XS Plds WiFi Antenna Lan Intel Wlan 633AN.HMWG Online Support Information Appendix C 168 Index 170