Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc.
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.
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Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc. 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.
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Back to Contents Page Antenna Dell™ Latitude™ 120L Service Manual CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
Back to Contents Page Base Plastics Dell™ Latitude™ 120L Service Manual CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall connector. 3. Disconnect any telephone, network, and USB cables from the computer. 4. Disconnect your computer and all attached devices from their electrical outlets. ...
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Optical Drive: Fan Module: Display Assembly to Computer Base: (1 each) (4 each) (4 each) Modem to Display Bezel: Display Panel: System Board: (6 each) (8 each) (2 each) Top of Palm Rest to Base Plastic to Hard Drive Carrier to Computer Base: Palm Rest From Bottom:...
Back to Contents Page Coin-Cell Battery Dell™ Latitude™ 120L Service Manual Removing the Coin-Cell Battery Replacing the Coin-Cell Battery Removing the Coin-Cell Battery CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
Dell™ Latitude™ 120L Service Manual CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. NOTICE: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.
Back to Contents Page Processor Module Dell™ Latitude™ 120L Service Manual Removing the Processor Module Replacing the Processor Module Removing the Processor Module CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
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1. Align the pin-1 corner of the processor module so that it points to the triangle on the system board, and insert the processor module into the ZIF socket. When the processor module is correctly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated correctly.
Back to Contents Page Processor Thermal-Cooling Assembly Dell™ Latitude™ 120L Service Manual Removing the Processor Thermal-Cooling Assembly Replacing the Processor Thermal-Cooling Assembly Removing the Processor Thermal-Cooling Assembly CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.
Replacing the Processor Thermal-Cooling Assembly NOTICE: Before you install the replacement processor thermal-cooling assembly, remove the mylar that covers the thermal grease on the assembly. 1. Lower the processor thermal-cooling assembly into place on top of the processor, aligning the numbered screws, labeled "1" through "4," with the numbers on the fan assembly, and the arrow on the pull-strap pointing toward the outside edge of the system board.
Back to Contents Page Display Assembly Dell™ Latitude™ 120L Service Manual Removing the Display Assembly Removing the Display Bezel Removing the Display Panel Replacing the Display Panel Removing the Display Assembly CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.
antenna cable display cable antenna cable display-cable pull-tab NOTICE: Be careful not to damage the display switch when removing the display. 12. Lift the display assembly out of the computer base. Removing the Display Bezel ...
1 screw covers/display bumpers (6) 2 M2.5 x 5-mm screws (6) display bezel 4 top cover Removing the Display Panel CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. ...
display panel top cover M2 x 3-mm screws (8) 6. Press in both sides of the top flex-cable connector, and pull the top flex-cable connector away from the display connector. 1 inverter connector 2 pull-tab on bottom flex-cable connector 3 top flex-cable connector 4 display connector ...
Back to Contents Page Fan Dell™ Latitude™ 120L Service Manual Removing the Cooling Fan Replacing the Cooling Fan Removing the Cooling Fan CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
fan assembly metal plate M2.5 x 5-mm screws (4) 17. Remove the plate and lift the system board off the fan assembly. Replacing the Cooling Fan 1. Position the system board over the fan assembly, aligning the screw holes in the system board with those in the fan assembly. ...
1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached. 2. Turn on the computer. 3. Locate the latest BIOS update file for your computer at support.dell.com. 4. Click Download Now to download the file. ...
Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell. NOTE: If you are installing a hard drive from a source other than Dell, you need to install an operating system, drivers, and utilities on the new hard drive. To replace the hard drive in the hard drive bay: ...
User's Guide for your computer. Returning a Hard Drive to Dell Return your old hard drive to Dell in its original or comparable foam packaging. Otherwise, the hard drive may be damaged in transit. foam packaging hard drive ...
Back to Contents Page Hinge Cover Dell™ Latitude™ 120L Service Manual Removing the Hinge Cover Replacing the Hinge Cover CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
Replacing the Keyboard Removing the Keyboard CAUTION: Before working inside your Dell™ computer, follow the safety instructions in your Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
Back to Contents Page Modem Dell™ Latitude™ 120L Service Manual Removing the Modem Replacing the Modem Removing the Modem CAUTION: Before you begin the following procedure, see the safety instructions in the Product Information Guide. NOTICE: To prevent damage to the system board, remove the main battery before working inside the computer. See Before Working Inside Your Computer.
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1. Connect the modem cable to the modem. NOTICE: Ensure that the modem cable is routed correctly when you replace the modem. 2. Connect the modem to the system board. Align the connector on the bottom of the modem with the modem connector on the system board, and press down on the connector side of the modem. ...
Back to Contents Page Palm Rest Dell™ Latitude™ 120L Service Manual CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
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1 suspend switch 2 touch-pad ribbon-cable release 3 touch-pad ribbon connector tabs (2) cable 10. Disconnect the suspend switch connector from the system board. NOTICE: Carefully separate the palm rest from the base plastics to prevent damage to the palm rest. ...
Back to Contents Page Pinout Assignments for I/O Connectors Dell™ Latitude™ 120L Service Manual USB Connector Video Connector USB Connector Signal USB5V+ USBP– USBP+ Video Connector Signal Signal CRT_R 9 CRT_G 10 CRT_B 11 MONITOR_DETECT– DDC_DATA CRT_HS...
Back to Contents Page Speakers Dell™ Latitude™ 120L Service Manual Removing the Speakers Replacing the Speakers Removing the Speakers CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
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NOTICE: Ensure that the speaker cables are under or between their routing clips. NOTE: The speakers face out in the base plastics holders. NOTE: The right speaker cable is longer than the left speaker cable. 2. Route the speaker cables under or between their routing clips. ...
Back to Contents Page System Board Dell™ Latitude™ 120L Service Manual Removing the System Board Replacing the System Board Removing the System Board CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
M2.5 x 5-mm screws (5) Replacing the System Board 1. Insert the video connector on the replacement system board through the side of the base plastics. 2. Replace the five M2.5 x 5-mm screws that secure the system board to the base plastics. ...
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Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc. 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.
To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface. NOTE: Memory modules purchased from Dell are covered under your computer warranty. 1. Follow the instructions in Before Working Inside Your Computer.
Removing the Optical Drive CAUTION: Before working inside your Dell™ computer, follow the safety instructions in the Product Information Guide. NOTICE: To prevent damage to devices, store them in a safe, dry place when they are not installed in the computer. Avoid pressing down on them or placing heavy objects on top of them.
1. Close your display and turn the computer upside-down. 2. If a device security screw is present, use a Phillips screwdriver to remove the M2.5 x 8-mm screw. 3. Using a screwdriver or a plastic scribe, push the notch by the device security screw hole toward the outside of the computer. ...
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captive screws (3) 3. If a Mini PCI card is not already installed, go to step 1. If you are replacing a Mini PCI card, remove the existing card: a. Disconnect the antenna cable from the Mini PCI card. ...
Replacing the Mini PCI Card 1. Install the replacement Mini PCI card. NOTICE: To prevent damage to the Mini PCI card, ensure that the antenna cable is not under the card when you press the card into place. a. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector until it clicks. Mini PCI card metal securing tabs (2) ...