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Packard Bell EasyNote LJ75 - User Manual

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Packard Bell EasyNote LJ75/LJ77
Service Guide
PRINTED IN TAIWAN
Service guide files and updates are available
on the ACER/CSD web; for more information,
please refer to http://csd.acer.com.tw
All manuals and user guides at all-guides.com
all-guides.com

Table of Contents

Questions and Answers

Summary

Chapter 1: System and Hardware Specifications

Features Overview

Provides a summary of the computer's main features and capabilities.

Notebook Component Tour

Guides users through the physical layout and components of the notebook.

Exterior Views and Component Locations

Details the location of ports and components on the notebook's exterior.

Input Devices and Indicators

Explains the keyboard, touchpad, and status indicator lights.

Keyboard Functionality

Describes key types, Windows keys, and system key functions.

Detailed Hardware Specifications

Lists comprehensive technical specifications for all hardware components.

Processor and Memory Specifications

Details CPU types, speeds, cache, and system memory configuration.

Graphics, Network, and Storage Specifications

Covers graphics controllers, LAN, WLAN, Bluetooth, and storage interfaces.

Other Hardware and Environment Details

Includes audio, power, I/O ports, software, optional features, and environment.

Chapter 2: System Utilities

BIOS Setup Utility

Explains how to access and navigate the BIOS Setup Utility for system configuration.

Navigating the BIOS Utility

Details the six menu options and navigation keys within the BIOS.

BIOS Setup Screens

Explains the Information, Main, Advanced, Security, Power, Boot, and Exit screens.

BIOS Flash Utilities

Outlines procedures for updating the system BIOS flash memory.

BIOS Update Utilities

Covers DOS Flash, WinFlash, and password removal utilities.

Chapter 3: Machine Disassembly and Replacement

Disassembly Requirements and General Information

Lists necessary tools and provides general guidelines before disassembly.

Pre-disassembly Instructions

Steps to follow before proceeding with the disassembly procedure.

External Module Disassembly

Procedures for disassembling external components of the notebook.

Removing External Components

Details removal of battery, SD card, lower covers, ODD, DIMM, WLAN, and HDD modules.

Main Unit Disassembly

Procedures for disassembling the internal components of the notebook.

Removing Top Case and Display Assemblies

Covers removal of switch cover, media board, keyboard, LCD module, and upper cover.

Removing Internal Components

Details removal of RTC battery, modem, USB, mainboard, RJ-11 jack, CPU fan, thermal module, and CPU.

LCD Module Procedures

Comprehensive guide for disassembling and reassembling the LCD module.

LCD Module Disassembly Steps

Step-by-step instructions for taking apart the LCD module.

LCD Module Reassembly Steps

Step-by-step instructions for reassembling the LCD module.

Main Module Reassembly Procedures

Comprehensive guide for reassembling the main unit components.

Replacing CPU, Thermal Module, and CPU Fan

Instructions for replacing core cooling and processor components.

Replacing Mainboard, USB Board, and Modem Board

Instructions for replacing core internal boards and connectivity components.

Replacing Speaker, LED Board, and Media Board FFC

Instructions for replacing other internal audio and connectivity components.

Replacing TouchPad Bracket and Upper Cover

Instructions for replacing input devices and the notebook's upper chassis.

Chapter 4: Troubleshooting

Common Problems Overview

Guides users through diagnosing and resolving common computer issues.

System Boot and Display Issues

Addresses problems related to powering on and display output.

Hardware Component Failures

Troubleshoots failures in LCD, keyboard, touchpad, speakers, microphone, and HDD.

Connectivity and Wireless Issues

Resolves problems with USB, wireless, Bluetooth, and easy button functions.

Thermal, Mouse, and System Stability Issues

Addresses overheating, external mouse, and general system stability problems.

CMOS Discharge and Intermittent Problems

Covers CMOS reset and troubleshooting intermittent system behavior.

POST Codes and Descriptions

Explains POST codes and their meanings for system diagnostics.

Chapter 5: Jumper and Connector Locations

Top View Component Locations

Details the location of jumpers and connectors on the top side of the motherboard.

Bottom View Component Locations

Details the location of jumpers and connectors on the bottom side of the motherboard.

Specific Board Component Identification

Identifies components on USB, Cap Sensor, LED, and SW boards.

Password and BIOS Recovery Procedures

Provides steps for clearing passwords and recovering BIOS using crisis disk.

Chapter 6: FRU (Field Replaceable Unit) List

Exploded Diagrams Overview

Provides visual breakdowns of the notebook's main assemblies.

Main, Base, and LCD Assembly Diagrams

Illustrates the exploded views of the main, base, and LCD assemblies.

FRU Parts List

Lists all Field Replaceable Units with their part numbers.

Adapters, Batteries, and Boards

Lists FRUs for adapters, batteries, and various internal boards.

Cables, Cases, and Screws

Lists FRUs for cables, chassis parts, and mounting screws.

Appendix A: Model Definition and Configuration

Packard Bell EasyNote LJ75 Series Specifications

Details the configuration options for the EasyNote LJ75 series models.

Packard Bell EasyNote LJ77 Series Specifications

Details the configuration options for the EasyNote LJ77 series models.

Appendix B: Test Compatible Components

Windows 7 Environment Test Results

Lists components tested and verified for Windows 7 compatibility.

Appendix C: Online Support Information

Packard Bell EasyNote LJ75 Specifications

General IconGeneral
RAM4 GB DDR3
Operating SystemWindows 7 Home Premium
Battery6-cell Li-ion
Optical DriveDVD Super Multi
WirelessWi-Fi 802.11 b/g/n
LAN10/100/1000 Gigabit Ethernet
USB Ports3 x USB 2.0
HDMIYes
Weight3.3 kg
Display Size17.3 inch
Display Resolution1600 x 900 pixels
GraphicsATI Mobility Radeon HD 5650
Card Reader5-in-1 card reader