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Dell Latitude 2120 User Manual

Dell Latitude 2120
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Dell Latitude 2120 Service Manual
Notes, Cautions, and Warnings
If you purchased a Dell n Series computer, any references in this document to Microsoft Windows operating systems are not applicable.
Information in this document is subject to change without notice.
©2010DellInc.Allrightsreserved.
Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
June2010Rev.A00
Working on Your Computer
Removing and Replacing Parts
System Setup
Diagnostics
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Trademarksusedinthistext:Dell™,theDELL™logo,andLatitude™aretrademarksofDellInc.Intel®, Core™,andSpeedStep®are either
trademarks or registered trademarks of Intel Corporation. Microsoft®, Windows®, Windows Vista®,
and the Windows Vista start button are either
trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Bluetooth®is a registered trademark
of Bluetooth SIG, Inc.

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Dell Latitude 2120 Specifications

General IconGeneral
RAMUp to 2GB DDR3
GraphicsIntel GMA 3150
ChipsetIntel NM10 Express
LAN10/100 Ethernet
Webcam1.3 MP
ProcessorIntel Atom N550
Storage128GB SSD
Display10.1-inch LED-backlit, 1024x600 resolution
Operating SystemWindows 7 Professional
Battery6-cell
WeightApprox. 1.36 kg (3 lbs) with 4-cell battery
Wireless802.11 b/g/n
Ports3 x USB 2.0, VGA, headphone/microphone combo jack
Card ReaderSD/MMC

Summary

Dell Latitude 2120 Service Manual

Battery

Removing the Battery

Detailed steps for safely removing the laptop's main battery.

Replacing the Battery

Procedure for reinstalling the laptop's main battery.

Keyboard

Removing the Keyboard

Step-by-step instructions for removing the laptop keyboard.

Replacing the Keyboard

Procedure for reinstalling the laptop keyboard.

Access Panel

Removing the Access Panel

Instructions for removing the computer's access panel.

Replacing the Access Panel

Procedure for reinstalling the computer's access panel.

Memory Modules

Removing the Memory Modules

Steps to remove the system's memory modules (RAM).

Replacing the Memory Modules

Procedure for reinstalling the system's memory modules (RAM).

Coin-Cell Battery

Removing the Coin-Cell Battery

Instructions for removing the CMOS coin-cell battery.

Replacing the Coin-Cell Battery

Procedure for reinstalling the CMOS coin-cell battery.

WLAN Card

Removing the WLAN Card

Steps to remove the wireless LAN card.

Replacing the WLAN Card

Procedure for reinstalling the wireless LAN card.

WWAN Card

Removing the WWAN Card

Steps to remove the wireless WAN card.

Replacing the WWAN Card

Procedure for reinstalling the wireless WAN card.

Hard Drive/Hard-Drive Brackets

Removing the Hard Drive/Hard-Drive Brackets

Instructions for removing the hard drive and its mounting brackets.

Replacing the Hard Drive/Hard-Drive Brackets

Procedure for reinstalling the hard drive and its mounting brackets.

Heatsink

Removing the Heatsink

Steps to remove the heatsink assembly from the system board.

Replacing the Heatsink

Procedure for reinstalling the heatsink assembly onto the system board.

DC Power Cable

Removing the DC Power Cable

Instructions for removing the DC power input cable.

Replacing the DC Power Cable

Procedure for reinstalling the DC power input cable.

Display Assembly

Removing the Display Assembly

Steps to remove the complete display unit from the laptop base.

Replacing the Display Assembly

Procedure for reinstalling the complete display unit onto the laptop base.

Display Bezel

Removing the Display Bezel

Instructions for removing the display's front bezel.

Replacing the Display Bezel

Procedure for reinstalling the display's front bezel.

Display-Hinge Covers

Removing the Display-Hinge Covers

Steps to remove the covers surrounding the display hinges.

Camera

Removing the Camera

Instructions for removing the integrated webcam module.

Replacing the Camera

Procedure for reinstalling the integrated webcam module.

Display Panel/Bracket

Removing the Display Panel/Bracket

Steps to remove the LCD panel and its mounting bracket.

Replacing the Display Panel/Bracket

Procedure for reinstalling the LCD panel and its mounting bracket.

Display Cable

Removing the Display Cable

Instructions for removing the cable connecting the display to the system board.

Replacing the Display Cable

Procedure for reinstalling the cable connecting the display to the system board.

Display Hinges

Removing the Display Hinges

Steps to remove the display hinges from the display assembly.

Replacing the Display Hinges

Procedure for reinstalling the display hinges onto the display assembly.

System Board/Bluetooth Module

Removing the System Board/Bluetooth Module

Steps to remove the main system board and Bluetooth module.

Replacing the System Board/Bluetooth Module

Procedure for reinstalling the main system board and Bluetooth module.

Secure Digital (SD) Card

Removing the SD Card

Instructions for removing the Secure Digital (SD) card.

Replacing the SD Card

Procedure for reinstalling the Secure Digital (SD) card.

SIM Card

Removing the SIM Card

Steps to remove the Subscriber Identity Module (SIM) card.

Replacing the SIM Card

Procedure for reinstalling the Subscriber Identity Module (SIM) card.

Hard Drive Accelerator Card

Removing the Hard Drive Accelerator Card

Instructions for removing the hard drive accelerator card.

Replacing the Hard Drive Accelerator Card

Procedure for reinstalling the hard drive accelerator card.

System Setup

Overview

Introduction to the system setup utility for configuration.

Entering System Setup

Instructions on how to access the computer's BIOS setup utility.

Boot Menu

Procedure to access the boot device selection menu.

Navigation Keystrokes

Key combinations used to navigate the System Setup interface.

System Setup Menu Options

Description of various configurable options within System Setup.

Diagnostics

Device Status Lights

Explanation of the status indicator lights on the computer.

Battery Status Lights

Information on the meaning of battery indicator lights.

Battery Charge and Health

How to check the laptop battery's charge level and overall health.

Keyboard Status Lights

Explanation of the status indicator lights on the keyboard.

LED Error Codes

List of LED error codes and their corresponding troubleshooting steps.

Specifications

System Information

Details on system chipset, processor, and memory specifications.

Memory

Technical specifications for the computer's memory modules.

Audio

Technical specifications for the computer's audio system.

Ports and Connectors

Information on available ports and connection interfaces.

Display

Technical specifications for the laptop display panel.

Touchpad

Technical specifications for the laptop's touchpad.

AC Adapter

Technical specifications for the AC adapter and power supply.

Physical

Physical dimensions and weight of the laptop.

Processor

Technical specifications for the computer's processor.

Video

Technical specifications for the video controller and output.

Communications

Specifications for wireless and wired network communications.

Drives

Technical specifications for storage drives.

Keyboard

Technical specifications for the laptop keyboard.

Battery

Technical specifications for the laptop battery.

Environmental

Environmental operating ranges and conditions for the laptop.

Working on Your Computer

Before Working Inside Your Computer

Essential safety guidelines and preparation steps before servicing the computer.

Recommended Tools

List of tools required for performing repair procedures.

Turning Off Your Computer

Procedure for safely shutting down the computer before maintenance.

After Working Inside Your Computer

Steps to reconnect components and safely power on the computer after service.

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