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Acer 4745 manual Wireless Function Failure, Thermal Unit Failure

Models: 4745

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Wireless Function Failure

If the WLAN fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRUs:

Thermal Unit Failure

If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs:

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Chapter 4

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Acer 4745 manual Wireless Function Failure, Thermal Unit Failure

Contents

Acer Aspire Service Guide Revision History Copyright IIIConventions Preface Page Table of Contents Troubleshooting 107 ViiiAcer Aspire 4745 Series Microsoft Windows 7 Environment TestTable of Contents Features ChapterMini Card AudioStorage Optical DriveDimensions and weight Power subsystemCommunication Privacy controlSoftware Special keys and controlsInterface Environment WarrantyOptional Items System Block Diagram IntelIcon Description Your Acer Notebook tourFront View HDD Hdmi Closed Front ViewLeft View Right View Indicators Bottom ViewIcon Function Description TouchPad Basics Function Left Button Right Button Main TouchPadLock key Description Using the KeyboardLock Keys and embedded numeric keypad Windows Keys Key DescriptionHot Keys Hotkey Icon Function DescriptionHardware Specifications and Configurations SpecificationCore Bus Cache Package Acer P/N Speed SizeSystem Memory Specification 4GBMemory Combinations Slot Total Memory 0MBBluetooth Specification Wireless Module SpecificationLAN Module Specification Hard Disk Drive Interface Specification Super-Multi Drive ModuleAudio Interface Specification Power and Keyboard Controller Specification Battery Specification CellCard Reader Specification SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009ABios Setup Utility Navigating the Bios UtilityAspire 4745 Bios InformationParameter Description UuidMain Parameter Description Format/OptionDisabled or SecurityParameter Description Option Clear or SetSetting a Password Removing a PasswordChanging a Password ContinueBoot USB CdromExit CmosBios Flash Utilities DOS Flash Utility USB HDDPage WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD PasswordRemoving Bios Passwords Cleaning Bios PasswordsUsing Boot Sequence Selector Using DMITools InputOutput Input dmitools /wuUsing the LAN MAC Eeprom Utility Chapter Machine Disassembly and Replacement Disassembly RequirementsPre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part NumberScrew 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*4LStep 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*3Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3.0*4LMain Unit Disassembly Process Main Unit Disassembly FlowchartRemoving the Keyboard Step Size Quantity Screw TypeChapter 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*3wideheadRemoving the Left Speaker Module Step Size Quantity Screw Type Speaker Module M2.5*4LRemoving the USB Board Step Size Quantity Screw Type USB Board M2.5*4LLift the USB Board upward away from the chassis Removing the Bluetooth Module Step Size Quantity Screw Type Bluetooth Board M2.3*3LRemoving the LCD Module Removing the Mainboard Step Size Quantity Screw Type LCD Module M2.5*6.5Chapter Step Size Quantity Screw Type Mainboard M2.5*4L Removing the Thermal Module Removing the CPU Removing the RTC Battery Removing the WiFi Antenna CableRemoving the Right Speaker Step Size Quantity Screw Type Right Speaker 3widehead ModuleRemoving the DC-In Cable Step Size Quantity Screw Type DC-In Cable M2.5*4LCD Module Disassembly Process LCD Module Disassembly FlowchartRemoving the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*4Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.3*3Removing 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 AntennasReplacing the Microphone Module Replacing the FPC Cable Replacing the LCD PanelReplacing the Webcam Replacing the LCD Bezel Replace the two screws and screw caps as shown Main Module Reassembly Procedure Replacing the DC-In CableReplacing the LCD Module Replacing the Right SpeakerReplacing the RTC Battery Replacing the CPU Replacing the Thermal ModuleReplacing the Mainboard Chapter Connect the right speaker cable Chapter Replacing the Bluetooth Module Replacing the USB Board Replacing the TouchPad BracketReplacing the Left Speaker Module Replacing the Power Switch Board Replacing the Function BoardReplacing the Upper Cover Page 100 Chapter Replacing the Keyboard Replacing the Hard Disk Drive Module102 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 CardsCommon Problems Symptoms Verified Go ToPower On Issue Computer Shutsdown IntermittentlyNo Display Issue No Post or VideoRandom Loss of Bios Settings Abnormal Video DisplayLCD Failure Built-In Keyboard FailureTouchPad Failure Internal Speaker FailureSelect Set up microphone Sound ProblemsMicrophone Problems Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer ODD Failure ODD Not Operating CorrectlyDiscs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit FailureExternal Mouse Failure Other FailuresDimm Intermittent ProblemsUndetermined Problems Post Code Range Phase Post CodesPeimemoryinstall PEI Peiswitchstack PEIPeienterrecoverymode PEI Peirecoverymediafound PEIBdsinstallhotkey BDS Bdsbeforepciioinstall BDSBdsenumerateallbootoption BDS Dxesmmcontrolerinit DXEBdsendofbootselection BDS Bdsentersetup BDSBdsenterbootmanager BDS Bdsbootdeviceselect BDSSmmacpienablestart SMM Smmacpienableend SMMSmmacpidisablestart SMM Smmacpidisableend SMM126 Chapter Top View Description DesciptionMini Card Wlan PJ2 Power Jack LANRTC FAN ConnClearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Description Location G1 / G2 Clear Cmos Jumpers WiFi BayBios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery from USB StorageFRU 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 BSQAcer Aspire 4745 FRU List Category Partname Description Acer Part NumberZY9 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 NumeberChapter 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 EmeaLX.PSR AAP Model Country Acer Part No VGA ChipAS4745G 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 SO2GBIII10LX.PSM0C.00 SO1GBIII10 LX.PSM0C.00 SO2GBIII10 SO1GBIIILX.PSM0C.00 SO2GBIII10 SO2GBIII10 SO1GBIII LX.PSR0C.01 SO1GBIII10LX.PSR0C.01 SO2GBIII10 LX.PSR0C.01 SO2GBIII10 SO1GBIIIAS4745 Thailand 163 Appendix a 164 Test Compatible Components Appendix BMicrosoft Windows 7 Environment Test Vendor DescriptionPanasoni SamsungSanyo SimploBluetooth SonyIntel PMDP600 IntelHDD Toshiba 4KSBRSeagate MK3265GSX Sata 8MB LF F/WGJ002J AC4TA1 Acer NLED14 AUOWxgags NLED14 CMOSO1GBIII Elpida SO2GBIII ElpidaSO1GBIII Hynix SO2GBIII HynixKN.1GBBB.03 KN.2GBBB.02SO1GBIII Smart KN.1GBBS.00NBDRW4 Panasoni NSM8XS PanasoniNBDCB4 Plds NSM8XS PldsWiFi Antenna Lan Intel Wlan 633AN.HMWG Online Support Information Appendix C168 Index 170