Replacing the RTC Battery | Acer 4745 guide

2.Replace the two (2) screws to secure the right speaker in place.

3.Replace the right speaker cable in to the chassis as shown.

Replacing the RTC Battery

1.Snap the RTC battery into it’s socket as shown.

Chapter 3

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Acer 4745 manual Replacing the RTC Battery

Contents

Acer Aspire Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii Troubleshooting 107 Microsoft Windows 7 Environment Test Acer Aspire 4745 Series Table of Contents Chapter Features Optical Drive Mini CardAudio Storage Privacy control Dimensions and weightPower subsystem Communication Special keys and controls InterfaceSoftware Warranty Optional ItemsEnvironment Intel System Block Diagram Your Acer Notebook tour Front ViewIcon Description HDD Closed Front View Left ViewHdmi Right View Bottom View Indicators Icon Function Description Function Left Button Right Button Main TouchPad TouchPad Basics Using the Keyboard Lock Keys and embedded numeric keypadLock key Description Key Description Windows Keys Hotkey Icon Function Description Hot Keys Size Hardware Specifications and ConfigurationsSpecification Core Bus Cache Package Acer P/N Speed 0MB System Memory Specification4GB Memory Combinations Slot Total Memory Wireless Module Specification LAN Module SpecificationBluetooth Specification Super-Multi Drive Module Hard Disk Drive Interface Specification Audio Interface Specification SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A Power and Keyboard Controller SpecificationBattery Specification Cell Card Reader Specification Navigating the Bios Utility Bios Setup Utility Uuid Aspire 4745 BiosInformation Parameter Description Parameter Description Format/Option Main Clear or Set Disabled orSecurity Parameter Description Option Removing a Password Setting a Password Continue Changing a Password USB Cdrom Boot Cmos Exit Bios Flash Utilities USB HDD DOS Flash UtilityPage WinFlash Utility Remove HDD Password Remove HDD/BIOS Password Utilities Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Input dmitools /wu Using DMIToolsInput Output Using the LAN MAC Eeprom Utility Chapter Disassembly Requirements Machine Disassembly and Replacement Main Screw List Quantity Part Number Pre-disassembly InstructionsDisassembly Process General Information External Module Disassembly Process External Modules Disassembly FlowchartScrew List Step Quantity Removing the Battery Pack Removing the SD dummy card Removing the Lower Cover Step Size Quantity Screw Type ODD Module M2.5*4L Removing the Optical Drive Module Step Size Quantity Screw Type ODD Bracket M2.0*3L Removing the Dimm Modules Step Size Quantity Screw Type Wlan Board M2.0*3 Removing the Wlan Module Step Size Quantity Screw Type HDD Carrier M3.0*4L Removing the Hard Disk Drive Module Main Unit Disassembly Flowchart Main Unit Disassembly Process Step Size Quantity Screw Type Removing the Keyboard Chapter Removing the Upper Cover Chapter Remove the eight 8 screws from the top cover Removing the Power Switch Board Step Size Quantity Screw Type Function Board M2.0*3widehead Removing the Function Board Step Size Quantity Screw Type Speaker Module M2.5*4L Removing the Left Speaker Module Step Size Quantity Screw Type USB Board M2.5*4L Removing the USB Board Lift the USB Board upward away from the chassis Step Size Quantity Screw Type Bluetooth Board M2.3*3L Removing the Bluetooth Module Removing the LCD Module Step Size Quantity Screw Type LCD Module M2.5*6.5 Removing the Mainboard Chapter Step Size Quantity Screw Type Mainboard M2.5*4L Removing the Thermal Module Removing the CPU Removing the WiFi Antenna Cable Removing the RTC Battery Step Size Quantity Screw Type Right Speaker 3widehead Module Removing the Right Speaker Step Size Quantity Screw Type DC-In Cable M2.5*4 Removing the DC-In Cable LCD Module Disassembly Flowchart LCD Module Disassembly Process Step Size Quantity Screw Type LCD Bezel M2.5*4 Removing the LCD Bezel Removing the Camera Module Step Size Quantity Screw Type LCD Panel M2.3*3 Removing the LCD Panel Removing the FPC Cable Removing the Microphone Module Removing the HingesStep Size Quantity Screw Type LCD Hinges M2.5*3 Removing the Antennas Chapter Replacing the MIC and WiFi Antennas LCD Module Reassembly Procedure Replacing the Microphone Module Replacing the LCD Panel Replacing the FPC Cable Replacing the Webcam Replacing the LCD Bezel Replace the two screws and screw caps as shown Replacing the DC-In Cable Main Module Reassembly Procedure Replacing the Right Speaker Replacing the LCD Module Replacing the RTC Battery Replacing the Thermal Module Replacing the CPU Replacing the Mainboard Chapter Connect the right speaker cable Chapter Replacing the Bluetooth Module Replacing the TouchPad Bracket Replacing the USB Board Replacing the Left Speaker Module Replacing the Function Board Replacing the Power Switch Board Replacing the Upper Cover Page 100 Chapter Replacing the Hard Disk Drive Module Replacing the Keyboard 102 Chapter Replacing the Wlan Board Replacing the Dimm ModulesInsert the Wlan board into the Wlan socket Replacing the ODD Module Replacing the Lower Covers Replacing the Dummy Cards Replacing the Battery Pack Symptoms Verified Go To Common Problems Computer Shutsdown Intermittently Power On Issue No Post or Video No Display Issue Abnormal Video Display Random Loss of Bios Settings Built-In Keyboard Failure LCD Failure Internal Speaker Failure TouchPad Failure Sound Problems Microphone ProblemsSelect Set up microphone HDD Not Operating Correctly Select Repair your computerSelect Startup Repair ODD Not Operating Correctly ODD Failure Discs Do Not Play Drive Not Detected Thermal Unit Failure Wireless Function Failure Other Failures External Mouse Failure Intermittent Problems Undetermined ProblemsDimm Post Codes Post Code Range Phase Peirecoverymediafound PEI Peimemoryinstall PEIPeiswitchstack PEI Peienterrecoverymode PEI Dxesmmcontrolerinit DXE Bdsinstallhotkey BDSBdsbeforepciioinstall BDS Bdsenumerateallbootoption BDS Bdsbootdeviceselect BDS Bdsendofbootselection BDSBdsentersetup BDS Bdsenterbootmanager BDS Smmacpidisableend SMM Smmacpienablestart SMMSmmacpienableend SMM Smmacpidisablestart SMM 126 Chapter Description Desciption Top View FAN Conn Mini Card Wlan PJ2 Power JackLAN RTC Description Location G1 / G2 Clear Cmos Jumpers WiFi Bay Clearing Password Check and Bios RecoveryClearing Password Check Steps for Clearing Bios Password Check Steps for Bios Recovery from USB Storage Bios Recovery by Crisis DiskBios Recovery Boot Block Bios Recovery Hotkey FRU Field Replaceable Unit List Acer Aspire 4745 Exploded Diagrams LCD AssemblyDescription Acer P/N Chassis Assembly BSQ HDD-BKTZQ1 ZR6FBZR6004,REV MBSG,PARK,SAM,BT WO Cpuassy Wwan Minicard BEVT-22A23T0 STN Category Partname Description Acer Part Number Acer Aspire 4745 FRU List 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 Category Partname Description Acer Part Numeber Screw List Chapter 145 Appendix a Acer Aspire 4745 SeriesCountry Acer Description AS4745G-624G64Bn EM W7HP64EMATTH1 MC S2.PSL0 LX.PSM Emea LX.PSM AAP LX.PSM ChinaGctwn LX.PSM TWN LX.PSR Emea S2.PSM LX.PSR AAP VGA Chip Model Country Acer Part No AS4745G Thailand LX.PSL02.018 Ci5520M AS4745G S2.PSL02.003 Ci5430M Parkxt LX.PSM0C.01LX.PSM0C.00 UMA AS4745 Malaysia LX.PSR0C.011 Ci3330M Model Country Acer Part No Memory SO4GBIII10 SO4GBIII10 SO2GBIIILX.PSL0C.00 SO2GBIII10 LX.PSM0C.01 SO2GBIII10 SO1GBIII10 LX.PSM0C.00 SO2GBIII10 SO1GBIII LX.PSM0C.00 SO2GBIII10LX.PSM0C.00 SO1GBIII10 LX.PSR0C.01 SO2GBIII10 SO1GBIII SO2GBIII10 SO1GBIIILX.PSR0C.01 SO1GBIII10 LX.PSR0C.01 SO2GBIII10 AS4745 Thailand 163 Appendix a 164 Appendix B Test Compatible Components Vendor Description Microsoft Windows 7 Environment Test Simplo PanasoniSamsung Sanyo Sony Bluetooth PMDP600 Intel Intel HDD 4KSBR SeagateToshiba MK3265GSX Sata 8MB LF F/WGJ002J NLED14 CMO AC4TA1 AcerNLED14 AUO Wxgags SO2GBIII Hynix SO1GBIII ElpidaSO2GBIII Elpida SO1GBIII Hynix KN.1GBBS.00 KN.1GBBB.03KN.2GBBB.02 SO1GBIII Smart NSM8XS Plds NBDRW4 PanasoniNSM8XS Panasoni NBDCB4 Plds WiFi Antenna Lan Intel Wlan 633AN.HMWG Appendix C Online Support Information 168 Index 170