Removing the RTC Battery | Aspire Digital 4625G guide

3.Lift the CPU clear of the socket as shown.

IMPORTANT:The pins on the underside of the CPU are very delicate. If they are damaged, the CPU may malfunction. Place the CPU on a clean, dry surface when it is not installed.

Removing the RTC Battery

1.See “Removing the Mainboard” on page 70.

2.Pry the RTC battery from the mainboard.

Please detach the RTC battery and follow local regulations for disposal.

Please detach the mainboard and follow local regulations for disposal.

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Chapter 3

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Aspire Digital 4625G manual Removing the RTC Battery

Contents

Aspire 4625/4625G Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 107 Viii Aspire 4625/4625G Microsoft Windows 7 Environment Test Table of Contents Features Chapter Dimensions and weight AudioStorage Optical Drive Power adapter and battery Special keys and controlsInterface Software Optional Items Warranty Environment System Block Diagram AMD Champlain Your Acer Aspire Notebook tour Front ViewIcon Description HDD Closed Front View Left ViewHdmi Right View Bottom View Indicators Icon Function Description TouchPad Basics Function Left Button Right Button Main TouchPad Using the Keyboard Desired access Num Lock on Num Lock offLock Keys and embedded numeric keypad Lock key Description Windows Keys Key Description Hot Keys Hotkey Icon Function Description Hardware Specifications and Configurations Skew ComparisonPart Specification Processor SpecificationsCores Bus Cache Package Acer P/N Speed Size Voltage System Memory Specification 1M SPI ROM4GB System Board Major Chips Specification Ports SpecificationMemory Combinations Slot Total Memory Wireless Module Specification LAN Module SpecificationBluetooth Specification Hard Disk Drive Interface Specification HgstRPM Sata Super-Multi Drive Module Audio Interface Specification Keyboard Controller SpecificationBattery Specification Cell RTC Battery Specification AC Adapter Specification System LED Indicator SpecificationLCD Specification LG LP140WH2-TLA2/LP140WH2-TLL1/LP140WH2-TLL1 LCD Display Supported Resolution Bits Video Interface SpecificationHdmi Port Specification GDDR3 Card Reader Specification LCD Inverter Not available with this modelPcmcia Port Not available in this model Page Chapter Bios Setup Utility Navigating the Bios Utility Aspire JV41 Bios InformationParameter Description Uuid Disabled MainParameter Description Format/Option Sata Class ID Disabled or SecurityParameter Description Option Clear or Set Setting a Password Removing a Password Boot USB Cdrom Security Boot Exit Exit Saving Changes Exit Bios Flash Utilities DOS Flash Utility WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD Password Removing Bios Passwords Chapter Clearing Bios Passwords Using Boot Sequence Selector Using DMITools Configuring Uuid Values Run UUID.bat Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part Number 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 Lower Cover M2.5*6.5 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*3 Step Size Quantity Screw Type ODD Bracket M2.0*3 Removing the Dimm Modules Removing the Wlan Module Step Size Quantity Screw Type Wlan Board M2.0*3Page Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3.0*3 Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Keyboard Removing the Upper Cover Chapter Step Size Quantity Screw Type Removing the Power Switch Board Removing the Function Board Step Size Quantity Screw Type Function Board M2.0*3widehead Removing the USB Board Step Size Quantity Screw Type USB Board M2.5*4 Removing the Bluetooth Module Step Size Quantity Screw Type Bluetooth Board M2.0*3 Removing the LCD Module Chapter Step Size Quantity Screw Type Removing the Mainboard Removing the Thermal Module Step Size Quantity Screw Type Mainboard M2.5*4 Step Size Quantity Screw Type Thermal Module M2.0*3 Removing the PCH Thermal Module Removing the CPU Removing the RTC Battery 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 M2.0*3 Removing the FPC Cable Removing the Microphone Module Removing the Antennas Removing the Hinges Step Size Quantity Screw Type LCD Hinges M2.5*3 LCD Module Reassembly Procedure Replacing the MIC and WiFi Antennas Replacing the FPC Cable Replacing the LCD Panel Replacing the Webcam Replacing the LCD Bezel Main Module Reassembly Procedure Replacing the RTC BatteryReplacing the CPU Replacing the Thermal Module Replacing the PCH Thermal Module Chapter Replacing the LCD Module Page Chapter Replacing the Bluetooth Module Replacing the USB Board Replacing the Power Switch Board Replacing the Function Board Replacing the Upper Cover Page 100 Chapter Replacing the Keyboard Replacing the ODD Module Replacing the Hard Disk Drive ModulePage Replacing the Wlan Board Replacing the Dimm ModulesInsert the Wlan board into the Wlan socket 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 Sound Problems Microphone ProblemsSelect Set up microphone HDD Not Operating Correctly Select Repair your computerSelect Startup Repair ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined ProblemsDimm Post Codes Code Post Routine DescriptionCode Beeps Post Routine Description 122 Chapter Code Beeps Post Routine Description Code Beeps For Boot Block in Flash ROM Top View U10/EC/KBC PU14/3V/5V PWM IC Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Clear Cmos Jumper Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery from USB Storage FRU Field Replaceable Unit List Aspire 4625/4625G Exploded Diagrams LCD AssemblyDescription Acer P/N Chassis Assembly HDD-BKT ZQ1 ZR6FBZR6004,REV MBSG,PARK,SAM,BT WO CpuassyWwan Minicard BEVT-22A23T0 STN BSQ Battery FRU ListCategory Partname Description Adapter Category Partname Description Cables Power Cord US 3PIN Rohs ZB1 PWR Cord US Power Cordeu 1.8M ZR1 PowerPIN Brazil 3P S/P Power Cord UK 3PIN ET2S Power Cord S/P-UK Power Cord Italian 3PIN EI2 Power Cord Category Partname Description Case/Cover/Bracket/Assembly CPU/Processor Category Partname Description DVD RW Drive HDD/Hard Disk Drive WD3200BEVT MK3265GSX-EUL MK3265GSX Sata 8MB LF FML320M,WD Sata 8MB LF F BEVT-22A0RT0 S.P MK5065GSX-EUL BS, 320G/P Sata 8MB LF F Category Partname Description Keyboard ZQ1 K/BSPANISH ZQ1 K/BSWEDISHZQ1 K/BSWISS ZQ1 K/BTHAI S.P Category Partname Description LCD Module Category Partname Description Mainboard MB AMD UMA W/CARD ZQ2BReader W/O CPU MBAMD,UMA,W/O CPUS.P MB AMD Park W/CARD ZQ2B Category Partname Description Memory Category Partname Description Heatsink Miscellaneous Screw List Part Name Description Appendix a Aspire 4625/4625GModel Country Acer Description AS4625G-N834G64Mn W7HP64ATSG1 MC Acla LX.PSS0 S2.PSS0 Model Country Acer Part No BOM Name VGA ChipParkxt LX.PSH02.024 AS4625GPARKXT512 APP920 Acla UMA Model Country Acer Part No SO2GBIII10SO2GBIII10 SO4GBIII10 SO1GBIII10 SO2GBIII10 SO4GBIII10 SO2GBIII10 SO1GBIII10SO2GBIII10 SO1GBIII10 HDD 1GB ODD NSM8XS9.5 AS4625G-P922G50Mn AS4625-N834G32Mn Singapore LX.PSS02.016 N320GB5.4KS Test Compatible Components Appendix B Microsoft Windows 7 Environment Test Vendor Type Description CoverAudio Codec Vendor Type Description Digi Digi LF F/WGJ002J22A0RT0, ML320M,WD Sata 8MB LF F Hgst SG NLED14WXGAG CMOAUO SO2GBIII13 Modem NB ChipsetSB Chipset Side Port WiFi Antenna Wireless LAN 164 Online Support Information Appendix C 166 Index 168