Dell Latitude 2120 User manual

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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Battery
Dell Latitude 2120 Service Manual
Removing the Battery
1. Follow the procedures in Before Working Inside Your Computer.
2. Slide the battery release latch into the unlock position.
3. Slide and remove the battery from the computer.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

Replacing the Battery
To replace the battery, perform the above steps in reverse order.
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Keyboard
Dell Latitude 2120 Service Manual
Removing the Keyboard
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the screws that secure the keyboard.
4. Open the display and then push a flathead screwdriver through the screw socket from where you removed the keyboard screw.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

5. Starting in the top left corner of the keyboard, lift the keyboard up, and then flip the keyboard.
6. Disconnect the keyboard data cable and remove the keyboard from the computer.

Replacing the Keyboard
To replace the keyboard, perform the above steps in reverse order.
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Access Panel
Dell Latitude 2120 Service Manual
Removing the Access Panel
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access-panel screws under the keyboard.
5. Remove the access-panel screws on the bottom of the computer.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

6. Starting near the hinges, lift the access panel and remove it from the computer.
Replacing the Access Panel
To replace the access panel, perform the above steps in reverse order.
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Memory Modules
Dell Latitude 2120 Service Manual
Removing the Memory Modules
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Pry the retention clips away from the memory module.
6. Remove the memory module from the computer.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

Replacing the Memory Modules
To replace the memory modules, insert the memory module in the memory slot at an angle, then press down the memory module to snap the memory module
in place.
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Coin-Cell Battery
Dell Latitude 2120 Service Manual
Removing the Coin-Cell Battery
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Disconnect the coin-cell battery cable from the system board.
6. Remove the coin-cell battery.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

Replacing the Coin-Cell Battery
To replace the coin-cell battery, perform the above steps in reverse order.
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WLAN Card
Dell Latitude 2120 Service Manual
Removing the WLAN Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Disconnect the WLAN antenna cables from the card.
6. Remove the screw that secures the WLAN card to the system board.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

7. Remove the WLAN card from the computer.
Replacing the WLAN Card
To replace the WLAN card, perform the above steps in reverse order.
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WWAN Card
Dell Latitude 2120 Service Manual
Removing the WWAN Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Disconnect the WWAN antenna cables from the card.
6. Remove the screw that secures the WWAN card to the system board.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

7. Remove the WWAN card from the computer.
Replacing the WWAN Card
To replace the WWAN card, perform the above steps in reverse order.
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Hard Drive/Hard-Drive Brackets
Dell Latitude 2120 Service Manual
Removing the Hard Drive/Hard-Drive Brackets
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Remove the screws that secure the hard drive to the system board.
6. Slide the hard drive towards the side of the computer to disengage the hard drive from the system board.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.

7. Lift the hard drive up to remove it from the computer.
8. Remove the hard-drive bracket screws from both sides of the hard drive.

9. Remove the hard-drive bracket from the hard drive.
Replacing the Hard Drive/Hard-Drive Brackets
To replace the hard drive/hard-drive brackets, perform the above steps in reverse order.
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Heatsink
Dell Latitude 2120 Service Manual
Removing the Heatsink
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the battery.
3. Remove the keyboard.
4. Remove the access panel.
5. Disconnect the speaker cable from the system board and remove it from its routing path.
6. Disconnect the fan power cable from the system board.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You may need to install Adobe Flash Player from Adobe.com in order to view the illustrations below.