Replacing the LCD Module | Packard Bell LJ77, LJ75 instruction

Replacing the LCD Module

1.Turn the computer over. Align the LCD hinges with the lower cover and replace the LCD module.

2.Replace the four securing screws (two each side), starting with the left side hinge. Ensure that the LCD cables are not trapped in the hinges.

NOTE: The securing screws differ in size: Red callout—M2.5*8, Green callout—M2.5*5.

3.Run the MIC cable along the cable channel as shown, using all the available cable clips.

4.Reconnect the MIC cable to the Mainboard as shown.

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Chapter 3

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Packard Bell LJ77, LJ75 manual Replacing the LCD Module

Contents

Packard Bell EasyNote LJ75/LJ77 Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Viii Packard Bell EasyNote LJ75 Series Packard Bell EasyNote LJ77 Series Online Support Information 207 Index 209 Features Chapter Dimensions and Weight Storage subsystemOptical Drive Audio Power Privacy controlSpecial Keys and Controls Ports Optional Environment System Block Diagram Front View Your Notebook tourComponent Icon Description Left View Hdmi Right View Rear View Bottom View Keyboard Area selected models Component Description LCD Panel Status Indicators BatteryIndicator Icon Description TouchPad Basics Function Left Button Right Button Main TouchPad Key Types Using the KeyboardIcon Key Type Description Windows Keys Key Description System Keys Function Key Description Hardware Specifications and Configurations DISRPM UMA Northbridge Specifications BiosSystem Memory Specification Ddriii Graphics Controller Specification Memory Combinations Slot Total Memory0MB GMA HD LAN Interface Specification Wireless Module 802.11b/g SpecificationBluetooth Specification Hard Disk Drive Interface Specification 8MB Internal transfer rate Mbits Sec, max Data transfer rate Super-Multi Drive Module Specification WritingReading Write Blue-Ray Combo Drive Module Specification CD-ROM CD-RW Audio Interface Specification Power and Keyboard Controller Specification LCD Specification Battery Specification CellLvds Bios Setup Utility Navigating the Bios Utility Parameter Description InformationUuid Main Parameter Description Format/Option Advanced Parameter Description Submenu Items IGD-TV AspmAspm L1 URR Disabled or SecurityParameter Description Option Clear or Set Setting a Password Removing a Password Changing a Password Continue Power Acpi S3 DTS EmitmAcpi S3 Boot USB Cdrom Exit Cmos Bios Flash Utilities DOS Flash Utility Page WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD PasswordPassword UnlockHD Removing Bios Passwords Cleaning Bios Passwords Using Boot Sequence Selector Input Using DMIToolsOutput Using the LAN Utility Chapter Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part Number External 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 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*5 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 Removing the Primary HDD Module Step Size Quantity Screw Type HDD Carrier M3*3 Remove the HDD from the carrier Chapter Removing the Secondary HDD Module Step Size Quantity Screw Type HDD Carrier M3*3 Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Switch Cover Step Size Quantity Screw Type Switch Cover M2.5*5 Chapter Page Removing the Media Board Removing the Keyboard Chapter Removing the LCD Module Step Size Quantity Screw Type LCD Module M2.5*8 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 Removing the TouchPad Bracket Step Size Quantity Screw Type TouchPad Bracket M2*3 Removing the Media Board FFC Removing the LED Board Removing the Speaker Module Step Size Quantity Screw Type Speaker Module M2*3 Lift the entire Speaker assembly clear of the Upper Cover Removing the RTC Battery Removing the Modem Board Step Size Quantity Screw Type Modem Board M2*3Page Removing the USB Board Step Size Quantity Screw Type USB Board M2.5*5Page Removing the Mainboard Step Size Quantity Screw Type Mainboard M2.5*5 Removing the RJ-11 Jack Chapter Removing the CPU Fan Step Size Quantity Screw Type CPU Fan M2*3 Removing the Thermal Module Step Size Quantity Screw Type Thermal Module M2.5*6.5 Removing the CPU LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the Power Board Step Size Quantity Screw Type Power Board M2*3 Removing the LCD Brackets and FPC Cable Step Size Quantity Screw Type LCD Brackets M2*3 Removing the Microphone Module Removing the Antennas Page LCD Module Reassembly Procedure Replacing the Antennas, Power Board, and MICPage 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 LED Board Replacing the Media Board FFC Replacing the TouchPad Bracket Replacing the Upper Cover 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 Wlan Module Replacing the Dimm Modules Replacing the ODD Module Replacing the Lower Covers 136 Chapter Replacing the Battery Replacing the SD Dummy Card 138 Chapter Common Problems Symptoms Verified Go To Power On Issue Computer Shuts down Intermittently No Display Issue No Post or Video Random Loss of Bios Settings Abnormal Video Display LCD Failure Built-In Keyboard Failure TouchPad Failure FFC Sound Problems Internal Speaker Failure 146 Chapter Select Set up microphone Microphone ProblemsInternal Microphone Failure Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Failure ODD Not Operating Correctly Discs Do Not Play Playback is Choppy 152 Chapter USB Right Side Failure USB/B Wireless Function Failure WiMax card Bluetooth Function Test Failure Re-assemble BT Cable Easy Button Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined ProblemsMotherboard Cmos Discharge Dimm 160 Chapter Post Codes Chipset Post CodesSec Memory BDS & Specific action Code Description Each Peim entry point used in 80PORT Each Driver entry point used in 80PORT CF9RESET BootpriorityFvbservice Smbios Legacybios LegacybiosplatformSetuputility Fwblockservice Each SmmDriver entry point used in 80PORT 168 Chapter Top View PJP2 JMINI1JODD1 JHDD1 LS-5022P USB Board LS-5024P Cap Sensor BoardLS-5026P LED Board LED1 Power S/W LS-5027P SW BoardLED3 SW1 Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Mark Description Location 174 Chapter Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery by USB flash crisis disk 176 Chapter FRU Field Replaceable Unit List Main Assembly Packard Bell EasyNote LJ75/LJ77 Exploded DiagramsDescription Acer P/N Base Assembly LCD Assembly Battery Packard Bell EasyNote LJ75/LJ77 FRU ListCategory Adapter CASE/COVER/BRACKET Assembly Cable CPU/PROCESSOR HDD/HARD Disk Driver Memory Keyboard DVD-RW Drive ODD SUPER-MULTI Drive ModuleODD BEZEL-SUPER Multi ODD Bracket BD Combo Module LCD Mainboard HeatsinkSpeaker Miscellaneous Screw List Screw Chapter 189 Packard Bell EasyNote LJ75 Series Appendix aModel Acer Part No Country Description EASYNOTELJ75-JO-110IT EASYNOTELJ75-JO-256FREASYNOTELJ75-JP-258FR EASYNOTELJ75-JO-432SP Model Acer Part No CPU LCDVGA Chip Vram NLED17.3W Parkxt NLED17.3W UMA Model Acer Part No Memory HDD 1GBSO2GBIII10 SO2GBIII10 SO4GBIII10 HDD 2GB ODD Media Extra Card ProcessorReader NSM8XS NIS Model Acer Part No Wireless Bluetooth VoipFinger LAN1 LX.BG902.014 3rd WiFi HM55 436G50Bn S2.BH302.001 INT6200H HM55 544G32Mi 2GB Packard Bell EasyNote LJ77 SeriesMedia Extra SW1 Card Reader Processor Model Acer Part No Wireless LAN1 Bluetooth Finger NB Chipset Phone Print Test Compatible Components Appendix B Battery Microsoft Windows 7 Environment TestVendor Type Description 2nd HDD Adapter Vendor Type Description CameraCPU HDD MEM Modem Wireless LAN WiFi AntennaVendor Type Description VGA Chip 206 Online Support Information Appendix C 208 Index 210 211 212