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Packard Bell LJ75, LJ77 manual

Models: LJ75 LJ77

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4.Lift the Modem Board away from the Mainboard, taking care not to damage the cable attached to the underside of the board.

5.Disconnect the cable from the underside of the Modem Board and lift the board clear of the chassis.

Chapter 3

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Packard Bell LJ75, LJ77 manual

Contents

Packard Bell EasyNote LJ75/LJ77 Service Guide Revision History III CopyrightConventions Preface Page Table of Contents Viii Packard Bell EasyNote LJ77 Series Packard Bell EasyNote LJ75 SeriesOnline Support Information 207 Index 209 Chapter FeaturesStorage subsystem Dimensions and WeightOptical Drive AudioPrivacy control PowerSpecial Keys and Controls PortsEnvironment OptionalSystem Block Diagram Front View Your Notebook tourComponent Icon Description Hdmi Left ViewRear View Right ViewBottom View Component Description Keyboard Area selected modelsLCD Panel Status Indicators BatteryIndicator Icon Description Function Left Button Right Button Main TouchPad TouchPad BasicsKey Types Using the KeyboardIcon Key Type Description Key Description Windows KeysFunction Key Description System KeysDIS Hardware Specifications and ConfigurationsRPM UMABios Northbridge SpecificationsSystem Memory Specification DdriiiMemory Combinations Slot Total Memory Graphics Controller Specification0MB GMA HDWireless Module 802.11b/g Specification LAN Interface SpecificationBluetooth Specification Hard Disk Drive Interface Specification8MB Internal transfer rate Mbits Sec, max Data transfer rate Writing Super-Multi Drive Module SpecificationReading WriteCD-ROM CD-RW Blue-Ray Combo Drive Module SpecificationPower and Keyboard Controller Specification Audio Interface SpecificationLCD Specification Battery Specification CellLvds Navigating the Bios Utility Bios Setup UtilityParameter Description InformationUuid Parameter Description Format/Option MainParameter Description Submenu Items AdvancedAspm IGD-TVAspm L1 URRSecurity Disabled orParameter Description Option Clear or SetRemoving a Password Setting a PasswordContinue Changing a PasswordAcpi S3 PowerDTS EmitmAcpi S3 USB Cdrom BootCmos ExitBios Flash Utilities DOS Flash Utility Page WinFlash Utility Remove HDD Password Remove HDD/BIOS Password UtilitiesPassword UnlockHDCleaning Bios Passwords Removing Bios PasswordsUsing Boot Sequence Selector Input Using DMIToolsOutput Using the LAN Utility Chapter Disassembly Requirements Machine Disassembly and ReplacementDisassembly Process Pre-disassembly InstructionsGeneral Information Main Screw List Quantity Part NumberExternal Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Step Quantity Removing the Battery Pack Removing the SD dummy card HDD2, Wlan Removing the Lower CoversHDD1 Step Size Quantity Screw Type ODD Module M2.5*5 Removing the Optical Drive ModuleStep Size Quantity Screw Type ODD Bracket M2*3 Removing the Dimm Modules Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3 Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Primary HDD ModuleRemove the HDD from the carrier Chapter Removing the Secondary HDD Module Step Size Quantity Screw Type HDD Carrier M3*3 Main Unit Disassembly Flowchart Main Unit Disassembly ProcessStep Size Quantity Screw Type Switch Cover M2.5*5 Removing the Switch CoverChapter Page Removing the Media Board Removing the Keyboard Chapter Step Size Quantity Screw Type LCD Module M2.5*8 Removing the LCD ModuleChapter Page Step Size Quantity Screw Type Carefully remove the LCD module from the chassis Chapter Removing the Upper Cover Step Size Quantity Screw Type Page Page Step Size Quantity Screw Type TouchPad Bracket M2*3 Removing the TouchPad BracketRemoving the Media Board FFC Removing the LED Board Step Size Quantity Screw Type Speaker Module M2*3 Removing the Speaker ModuleLift the entire Speaker assembly clear of the Upper Cover Removing the RTC Battery Step Size Quantity Screw Type Modem Board M2*3 Removing the Modem BoardPage Step Size Quantity Screw Type USB Board M2.5*5 Removing the USB BoardPage Step Size Quantity Screw Type Mainboard M2.5*5 Removing the MainboardRemoving the RJ-11 Jack Chapter Step Size Quantity Screw Type CPU Fan M2*3 Removing the CPU FanStep Size Quantity Screw Type Thermal Module M2.5*6.5 Removing the Thermal ModuleRemoving the CPU LCD Module Disassembly Flowchart LCD Module Disassembly ProcessRemoving the LCD Bezel Removing the Camera Module Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the LCD PanelStep Size Quantity Screw Type Power Board M2*3 Removing the Power BoardRemoving the LCD Brackets and FPC Cable Step Size Quantity Screw Type LCD Brackets M2*3 Removing the Microphone Module Removing the Antennas Page Replacing the Antennas, Power Board, and MIC LCD Module Reassembly ProcedurePage 108 Chapter Replacing the LCD Panel 110 Chapter Replacing the Camera Module Replacing the LCD Bezel Page Replacing the CPU Main Module Reassembly ProcedureReplacing the Thermal Module Replacing the CPU Fan Replacing the RJ-11 Jack Replacing the Mainboard Replacing the USB Board Replacing the Modem Board Replacing the Speaker Module Replacing the Media Board FFC Replacing the LED BoardReplacing the Upper Cover Replacing the TouchPad BracketReconnect the following cables as shown Chapter 123 124 Chapter Page Replacing the LCD Module Page 128 Chapter Replacing the Keyboard Replacing the Media Board Replacing the Switch Cover 132 Chapter Replacing the Hard Disk Drive Modules Replacing the Dimm Modules Replacing the Wlan ModuleReplacing the Lower Covers Replacing the ODD Module136 Chapter Replacing the SD Dummy Card Replacing the Battery138 Chapter Symptoms Verified Go To Common ProblemsComputer Shuts down Intermittently Power On IssueNo Post or Video No Display IssueAbnormal Video Display Random Loss of Bios SettingsBuilt-In Keyboard Failure LCD FailureFFC TouchPad FailureInternal Speaker Failure Sound Problems146 Chapter Select Set up microphone Microphone ProblemsInternal Microphone Failure Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Not Operating Correctly ODD FailureDiscs Do Not Play Playback is Choppy 152 Chapter USB/B USB Right Side FailureWiMax card Wireless Function FailureRe-assemble BT Cable Bluetooth Function Test FailureEasy Button Failure External Mouse Failure Thermal Unit FailureOther Failures Undetermined Problems Intermittent ProblemsMotherboard Cmos Discharge Dimm160 Chapter Chipset Post Codes Post CodesSec MemoryBDS & Specific action Code Description Each Driver entry point used in 80PORT Each Peim entry point used in 80PORTBootpriority CF9RESETFvbservice SmbiosLegacybiosplatform LegacybiosSetuputility FwblockserviceEach SmmDriver entry point used in 80PORT 168 Chapter Top View JMINI1 PJP2JODD1 JHDD1LS-5024P Cap Sensor Board LS-5022P USB BoardLS-5026P LED Board LED1LS-5027P SW Board Power S/WLED3 SW1Clearing Password Check Clearing Password Check and Bios RecoverySteps for Clearing Bios Password Check Mark Description Location174 Chapter Bios Recovery Boot Block Bios Recovery by Crisis DiskBios Recovery Hotkey Steps for Bios Recovery by USB flash crisis disk176 Chapter FRU Field Replaceable Unit List Main Assembly Packard Bell EasyNote LJ75/LJ77 Exploded DiagramsDescription Acer P/N Base Assembly LCD Assembly Packard Bell EasyNote LJ75/LJ77 FRU List BatteryCategory AdapterCable CASE/COVER/BRACKET AssemblyHDD/HARD Disk Driver CPU/PROCESSORKeyboard MemoryODD SUPER-MULTI Drive Module DVD-RW DriveODD BEZEL-SUPER Multi ODD BracketLCD BD Combo ModuleHeatsink MainboardSpeaker MiscellaneousScrew Screw ListChapter 189 Packard Bell EasyNote LJ75 Series Appendix aModel Acer Part No Country Description EASYNOTELJ75-JO-256FR EASYNOTELJ75-JO-110ITEASYNOTELJ75-JP-258FR EASYNOTELJ75-JO-432SPCPU LCD Model Acer Part NoVGA Chip VramNLED17.3W UMA NLED17.3W ParkxtHDD 1GB Model Acer Part No MemorySO2GBIII10 SO2GBIII10 SO4GBIII10Media Extra Card Processor HDD 2GB ODDReader NSM8XS NISVoip Model Acer Part No Wireless BluetoothFinger LAN1LX.BG902.014 3rd WiFi HM55 436G50Bn S2.BH302.001 INT6200H HM55 544G32Mi 2GB Packard Bell EasyNote LJ77 SeriesMedia Extra SW1 Card Reader Processor Finger NB Chipset Phone Print Model Acer Part No Wireless LAN1 BluetoothAppendix B Test Compatible ComponentsMicrosoft Windows 7 Environment Test BatteryVendor Type Description 2nd HDD AdapterCamera Vendor Type DescriptionCPU HDDModem MEMWireless LAN WiFi AntennaVendor Type Description VGA Chip 206 Appendix C Online Support Information208 Index 210 211 212