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Lenovo E4325 User Manual

Lenovo E4325
88 pages
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HardwareMaintenanceManual
LenovoE4325

Table of Contents

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Lenovo E4325 Specifications

General IconGeneral
Screen Size14 inches
RAMUp to 16GB
StorageUp to 1TB HDD or 256GB SSD
Display1366x768
GraphicsAMD Radeon
Operating SystemWindows 10
BatteryLi-Ion
Weight2.1 kg
PortsUSB 2.0/3.0, HDMI, VGA, Ethernet, headphone/microphone combo jack

Summary

Chapter 1. Safety Information

General Safety Practices

Rules to ensure general safety during machine maintenance and operation.

Electrical Safety Guidelines

Rules to follow when working on electrical equipment to prevent hazards.

Safety Inspection and Hazard Identification

Guide to identify potential safety hazards and unsafe conditions.

Electrostatic Discharge (ESD) Precautions

Procedures to prevent damage from electrostatic discharge on sensitive components.

Grounding Requirements

Importance of proper electrical grounding for operator safety and system function.

Multilingual Safety Warnings

Safety warnings and notices in various languages covering multiple hazard types.

Chapter 2. General Checkout

What to do first

Initial steps and information required when returning a FRU for service.

Important Notes for Service

Key considerations and notes on service, warranty, and potential issues.

Power System Checkout

Steps to verify power symptoms and check computer power components.

Checking AC Power Adapter

Procedure to test the AC power adapter's output voltage and functionality.

Checking Operational Charging

Procedure to verify if the battery pack is charging properly during operation.

Checking the Battery Pack

Procedure to measure battery voltage and resistance for health check.

Chapter 3. Related Service Information

Recovering Computer Settings

Information on using recovery programs like OneKey Recovery Pro for system restore.

Using Passwords

Types of passwords (power-on, supervisor) and their functions for system access.

Power Management Modes

Explanation of screen blank, sleep, and hibernation modes for power saving.

Chapter 4. Status Indicators

Indicator Meanings

Explains the meaning and status of various system status indicators on the computer.

Chapter 5. Fn Key Combinations

Function Key Combinations

Lists and describes the functions of various Fn key combinations for system control.

Chapter 6. Locations

Component and Indicator Locations

Illustrates and describes the physical locations of computer controls, connectors, and indicators.

FRU and CRU Identification

Explains how to identify FRUs and CRUs and where to find them within the computer.

Major FRU and CRU Listings

Lists major FRUs, their descriptions, and CRU IDs for service reference.

LCD Specific FRUs

Lists specific FRUs related to the LCD assembly, including bezel, panel, and hinges.

Miscellaneous Parts List

Lists various miscellaneous parts with their FRU descriptions for service.

FRU Information Lookup

Guide to finding detailed FRU information, including part numbers, online.

Chapter 7. FRU Replacement Notices

CRU Statement for Customers

Explains Customer Replaceable Units (CRUs), responsibilities, and replacement process.

Important Notice for Replacing FRUs

Crucial steps before replacing FRUs, including BIOS/driver updates and precautions.

Screw Notices

Guidelines and specifications for using specific screws during FRU replacement.

Chapter 8. Removing and Replacing a FRU

FRU Replacement Guidelines

General rules and important notices for FRU removal and installation procedures.

Battery Pack and Bottom Slot Cover Removal

Procedures for removing the battery pack and bottom slot cover for access.

Optical Drive and Memory Module Service

Steps for replacing the optical drive and memory module.

Hard Disk Drive and Wireless LAN Card Replacement

Instructions for removing the hard disk drive and wireless LAN card.

Backup Battery, Keyboard, and Bezel Service

Procedures for replacing the backup battery, keyboard, and bezel.

Board Replacements

Instructions for replacing LED board, power board, I/O board, and system board.

Thermal Module and Microprocessor Replacement

Steps for replacing the thermal module and microprocessor.

LCD Unit and Related Components Service

Procedures for replacing the LCD unit, front bezel, camera, panel, and cable.

Speaker Assembly and Base Cover Replacement

Instructions for removing the speaker assembly and base cover.

Appendix A. Notices

General Lenovo Product and Service Information

Information on product availability, patents, and intellectual property rights.

Warranty Disclaimer and Liability

Disclaimer of warranties, limitations of liability, and product use restrictions.

Third-Party Websites and Performance Data

Information regarding external websites and performance data variability.

Trademarks

Lenovo and Microsoft Trademarks

Lists registered trademarks of Lenovo and Microsoft for products and services.

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