LX.BG902.014 3rd WiFi HM55 436G50Bn | Packard Bell LJ75, LJ77

	Model	Acer Part No	Wireless	Bluetooth	VOIP	Finger	NB
	Model	Acer Part No	LAN1	Bluetooth	Phone	Print	Chipset
			LAN1		Phone	Print	Chipset

	ENLJ75-	LX.BG902.014	3rd WiFi 2x2	N	N	N	HM55
	436G50Bn		BGN

	ENLJ75-	LX.BG902.001	3rd WiFi 2x2	N	N	N	HM55
	434G1TMn		BGN

	ENLJ75-	LX.BG902.008	3rd WiFi 2x2	N	N	N	HM55
	434G1TBn		BGN

	ENLJ75-	LX.BG902.013	3rd WiFi 2x2	BT 2.1	N	N	HM55
	436G64Mn		BGN

	ENLJ75-	LX.BG902.012	3rd WiFi 2x2	BT 2.1	N	N	HM55
	434G50Mn		BGN

	ENLJ75-	S2.BG902.001	3rd WiFi 2x2	BT 2.1	N	N	HM55
	544G50Mn		BGN

	ENLJ75-	LX.BG902.011	3rd WiFi 2x2	N	N	N	HM55
	434G64Mn		BGN

	ENLJ75-	LX.BG902.010	3rd WiFi 2x2	N	N	N	HM55
	334G64Mn		BGN

	ENLJ75-	LX.BG902.002	3rd WiFi 2x2	N	N	N	HM55
	334G50Mn		BGN

	ENLJ75-	LX.BG902.009	3rd WiFi 2x2	N	N	N	HM55
	434G32Mn		BGN

	ENLJ75-	LX.BG902.007	3rd WiFi 2x2	N	N	N	HM55
	434G50Mn		BGN

	ENLJ75-	LX.BG902.006	3rd WiFi 2x2	N	N	N	HM55
	624G50Mn		BGN

	ENLJ75-	LX.BG902.003	3rd WiFi 2x2	N	N	N	HM55
	434G64Mn		BGN

	ENLJ75-	S2.BG902.002	INT6200H	BT 2.1	N	N	HM55
	524G50Mi

	ENLJ75-	LX.BH302.010	3rd WiFi 2x2	N	N	N	HM55
	434G82Mn		BGN

	ENLJ75-	LX.BH302.005	3rd WiFi 2x2	N	N	N	HM55
	338G50Mn		BGN

	ENLJ75-	LX.BH302.009	3rd WiFi 2x2	N	N	N	HM55
	436G50Mn		BGN

	ENLJ75-	LX.BH302.008	3rd WiFi 2x2	N	N	N	HM55
	434G64Mn		BGN

	ENLJ75-	LX.BH302.004	3rd WiFi 2x2	N	N	N	HM55
	434G50Mn		BGN

	ENLJ75-	LX.BH302.007	3rd WiFi BG	BT 2.1	N	N	HM55
	333G32Mi

	ENLJ75-	LX.BH302.006	3rd WiFi 2x2	N	N	N	HM55
	434G32Bn		BGN

	ENLJ75-	LX.BH302.003	3rd WiFi 2x2	N	N	N	HM55
	434G50Mn		BGN

	ENLJ75-	LX.BH302.002	3rd WiFi 2x2	N	N	N	HM55
	334G50Mn		BGN

	ENLJ75-	LX.BH302.001	3rd WiFi 2x2	BT 2.1	N	N	HM55
	434G32Mn		BGN

197	Appendix A

Image 207

Packard Bell LJ75, LJ77 manual LX.BG902.014 3rd WiFi HM55 436G50Bn

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 Audio Dimensions and WeightStorage subsystem Optical Drive Ports PowerPrivacy control Special Keys and Controls 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 UMA Hardware Specifications and ConfigurationsDIS RPM Ddriii Northbridge SpecificationsBios System Memory Specification GMA HD Graphics Controller SpecificationMemory Combinations Slot Total Memory 0MB Hard Disk Drive Interface Specification LAN Interface SpecificationWireless Module 802.11b/g Specification Bluetooth Specification 8MB Internal transfer rate Mbits Sec, max Data transfer rate Write Super-Multi Drive Module SpecificationWriting Reading 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 URR IGD-TVAspm Aspm L1 Clear or Set Disabled orSecurity Parameter Description Option 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 UnlockHD Remove HDD/BIOS Password UtilitiesRemove HDD Password Password Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Using DMITools InputOutput Using the LAN 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 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 Dimm Intermittent ProblemsUndetermined Problems Motherboard Cmos Discharge 160 Chapter Memory Post CodesChipset Post Codes Sec BDS & Specific action Code Description Each Driver entry point used in 80PORT Each Peim entry point used in 80PORT Smbios CF9RESETBootpriority Fvbservice Fwblockservice LegacybiosLegacybiosplatform Setuputility Each SmmDriver entry point used in 80PORT 168 Chapter Top View JHDD1 PJP2JMINI1 JODD1 LED1 LS-5022P USB BoardLS-5024P Cap Sensor Board LS-5026P LED Board SW1 Power S/WLS-5027P SW Board LED3 Mark Description Location Clearing Password Check and Bios RecoveryClearing Password Check Steps for Clearing Bios Password Check 174 Chapter Steps for Bios Recovery by USB flash crisis disk Bios Recovery by Crisis DiskBios Recovery Boot Block Bios Recovery Hotkey 176 Chapter FRU Field Replaceable Unit List Packard Bell EasyNote LJ75/LJ77 Exploded Diagrams Main AssemblyDescription Acer P/N Base Assembly LCD Assembly Adapter BatteryPackard Bell EasyNote LJ75/LJ77 FRU List Category Cable CASE/COVER/BRACKET Assembly HDD/HARD Disk Driver CPU/PROCESSOR Keyboard Memory ODD Bracket DVD-RW DriveODD SUPER-MULTI Drive Module ODD BEZEL-SUPER Multi LCD BD Combo Module Miscellaneous MainboardHeatsink Speaker Screw Screw List Chapter 189 Appendix a Packard Bell EasyNote LJ75 SeriesModel Acer Part No Country Description EASYNOTELJ75-JO-432SP EASYNOTELJ75-JO-110ITEASYNOTELJ75-JO-256FR EASYNOTELJ75-JP-258FR Vram Model Acer Part NoCPU LCD VGA Chip NLED17.3W UMA NLED17.3W Parkxt SO2GBIII10 SO4GBIII10 Model Acer Part No MemoryHDD 1GB SO2GBIII10 NSM8XS NIS HDD 2GB ODDMedia Extra Card Processor Reader LAN1 Model Acer Part No Wireless BluetoothVoip Finger 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 Adapter BatteryMicrosoft Windows 7 Environment Test Vendor Type Description 2nd HDD HDD Vendor Type DescriptionCamera CPU Modem MEM WiFi Antenna Wireless LANVendor Type Description VGA Chip 206 Appendix C Online Support Information 208 Index 210 211 212