Replacing the Modem Board | Packard Bell LJ75, LJ77 guide

Replacing the Modem Board

1.Reconnect the RJ-11 cable to the Modem Board.

3.Secure the cable in place with adhesive tape.

2.Align the screw holes on the Modem and Lower Cover and replace the board.

4.Press down as indicated to connect the board-to- board interface.

5.Secure the Modem Board to the Mainboard with two screws.

Chapter 3

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Packard Bell LJ75, LJ77 manual Replacing the Modem Board

Contents

Packard Bell EasyNote LJ75/LJ77 Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii Packard Bell EasyNote LJ77 Series Packard Bell EasyNote LJ75 Series Online Support Information 207 Index 209 Chapter Features Storage subsystem Dimensions and WeightOptical Drive Audio Privacy control PowerSpecial Keys and Controls Ports Environment Optional System Block Diagram Your Notebook tour Front ViewComponent Icon Description Hdmi Left View Rear View Right View Bottom View Component Description Keyboard Area selected models LCD Panel Battery Status IndicatorsIndicator Icon Description Function Left Button Right Button Main TouchPad TouchPad Basics Using the Keyboard Key TypesIcon Key Type Description Key Description Windows Keys Function Key Description System Keys DIS Hardware Specifications and ConfigurationsRPM UMA Bios Northbridge SpecificationsSystem Memory Specification Ddriii Memory Combinations Slot Total Memory Graphics Controller Specification0MB GMA HD Wireless Module 802.11b/g Specification LAN Interface SpecificationBluetooth Specification Hard Disk Drive Interface Specification 8MB Internal transfer rate Mbits Sec, max Data transfer rate Writing Super-Multi Drive Module SpecificationReading Write CD-ROM CD-RW Blue-Ray Combo Drive Module Specification Power and Keyboard Controller Specification Audio Interface Specification Battery Specification Cell LCD SpecificationLvds Navigating the Bios Utility Bios Setup Utility Information Parameter DescriptionUuid Parameter Description Format/Option Main Parameter Description Submenu Items Advanced Aspm IGD-TVAspm L1 URR Security Disabled orParameter Description Option Clear or Set Removing a Password Setting a Password Continue Changing a Password Acpi S3 Power Emitm DTSAcpi S3 USB Cdrom Boot Cmos Exit Bios Flash Utilities DOS Flash Utility Page WinFlash Utility Remove HDD Password Remove HDD/BIOS Password UtilitiesPassword UnlockHD Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Using DMITools InputOutput Using the LAN Utility Chapter Disassembly Requirements Machine Disassembly and Replacement Disassembly Process Pre-disassembly InstructionsGeneral 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 Covers HDD2, WlanHDD1 Step Size Quantity Screw Type ODD Module M2.5*5 Removing the Optical Drive Module Step 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 Module Remove 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 Process Step Size Quantity Screw Type Switch Cover M2.5*5 Removing the Switch Cover Chapter Page Removing the Media Board Removing the Keyboard Chapter Step Size Quantity Screw Type LCD Module M2.5*8 Removing the LCD Module Chapter 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 Bracket Removing the Media Board FFC Removing the LED Board Step Size Quantity Screw Type Speaker Module M2*3 Removing the Speaker Module Lift 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 Mainboard Removing the RJ-11 Jack Chapter Step Size Quantity Screw Type CPU Fan M2*3 Removing the CPU Fan Step Size Quantity Screw Type Thermal Module M2.5*6.5 Removing the Thermal Module Removing the CPU LCD Module Disassembly Flowchart LCD Module Disassembly Process Removing the LCD Bezel Removing the Camera Module Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the LCD Panel Step Size Quantity Screw Type Power Board M2*3 Removing the Power Board Removing 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 Main Module Reassembly Procedure Replacing the CPUReplacing 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 Board Replacing the Upper Cover Replacing the TouchPad Bracket Reconnect 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 Module Replacing the Lower Covers Replacing the ODD Module 136 Chapter Replacing the SD Dummy Card Replacing the Battery 138 Chapter Symptoms Verified Go To Common Problems Computer Shuts down 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 FFC TouchPad Failure Internal Speaker Failure Sound Problems 146 Chapter Microphone Problems Select Set up microphoneInternal Microphone Failure HDD Not Operating Correctly Select Repair your computerSelect Startup Repair ODD Not Operating Correctly ODD Failure Discs Do Not Play Playback is Choppy 152 Chapter USB/B USB Right Side Failure WiMax card Wireless Function Failure Re-assemble BT Cable Bluetooth Function Test Failure Easy Button Failure External Mouse Failure Thermal Unit Failure Other Failures Undetermined Problems Intermittent ProblemsMotherboard Cmos Discharge Dimm 160 Chapter Chipset Post Codes Post CodesSec Memory BDS & Specific action Code Description Each Driver entry point used in 80PORT Each Peim entry point used in 80PORT Bootpriority CF9RESETFvbservice Smbios Legacybiosplatform LegacybiosSetuputility Fwblockservice Each SmmDriver entry point used in 80PORT 168 Chapter Top View JMINI1 PJP2JODD1 JHDD1 LS-5024P Cap Sensor Board LS-5022P USB BoardLS-5026P LED Board LED1 LS-5027P SW Board Power S/WLED3 SW1 Clearing Password Check Clearing Password Check and Bios RecoverySteps for Clearing Bios Password Check Mark Description Location 174 Chapter Bios Recovery Boot Block Bios Recovery by Crisis DiskBios Recovery Hotkey Steps for Bios Recovery by USB flash crisis disk 176 Chapter FRU Field Replaceable Unit List Packard Bell EasyNote LJ75/LJ77 Exploded Diagrams Main AssemblyDescription Acer P/N Base Assembly LCD Assembly Packard Bell EasyNote LJ75/LJ77 FRU List BatteryCategory Adapter Cable CASE/COVER/BRACKET Assembly HDD/HARD Disk Driver CPU/PROCESSOR Keyboard Memory ODD SUPER-MULTI Drive Module DVD-RW DriveODD BEZEL-SUPER Multi ODD Bracket LCD BD Combo Module Heatsink MainboardSpeaker Miscellaneous Screw Screw List Chapter 189 Appendix a Packard Bell EasyNote LJ75 SeriesModel Acer Part No Country Description EASYNOTELJ75-JO-256FR EASYNOTELJ75-JO-110ITEASYNOTELJ75-JP-258FR EASYNOTELJ75-JO-432SP CPU LCD Model Acer Part NoVGA Chip Vram NLED17.3W UMA NLED17.3W Parkxt HDD 1GB Model Acer Part No MemorySO2GBIII10 SO2GBIII10 SO4GBIII10 Media Extra Card Processor HDD 2GB ODDReader NSM8XS NIS Voip Model Acer Part No Wireless BluetoothFinger LAN1 LX.BG902.014 3rd WiFi HM55 436G50Bn S2.BH302.001 INT6200H HM55 544G32Mi Packard Bell EasyNote LJ77 Series 2GBMedia Extra SW1 Card Reader Processor Finger NB Chipset Phone Print Model Acer Part No Wireless LAN1 Bluetooth Appendix B Test Compatible Components Microsoft Windows 7 Environment Test BatteryVendor Type Description 2nd HDD Adapter Camera Vendor Type DescriptionCPU HDD Modem MEM WiFi Antenna Wireless LANVendor Type Description VGA Chip 206 Appendix C Online Support Information 208 Index 210 211 212