Dell™ Latitude™ D620 Service Manual Before You Begin System Components Media Bay Devices Hard Drive Hinge Cover Keyboard Memory Display Assembly Internal Card with Bluetooth® Wireless Technology Communications Cards Coin-Cell Battery Palm Rest Modem Processor Thermal-Cooling Assembly Processor Module Speaker Microphone PC Card Reader System Board Fan Base Flashing the BIOS Model PP18L Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer
Back to Contents Page Base Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
Back to Contents Page Before You Begin Dell™ Latitude™ D620 Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Computer Orientation Screw Identification This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: l You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network device. 3. Disconnect any telephone, network, and USB cables from the computer. 4. Disconnect your computer and all attached devices from their electrical outlets. 5. Turn over the computer. NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. 6. 1 Remove the battery: a.
Optical Drive: Fan Module: (1 each) (4 each) Display Assembly to Computer Base: (4 each) NOTE: This screw is optional and might not be installed on the computer.
Back to Contents Page Flashing the BIOS Dell™ Latitude™ D620 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BIOS-update program CD is provided with the new system board, flash the BIOS from the CD. If you do not have a BIOS-update program CD, flash the BIOS from the hard drive. Flashing the BIOS From a CD 1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.
Back to Contents Page Internal Card with Bluetooth® Wireless Technology Dell™ Latitude™ D620 Service Manual CAUTION: Before performing the following procedures, follow the safety instructions in your Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer.
Back to Contents Page Coin-Cell Battery Dell™ Latitude™ D620 Service Manual CAUTION: Before performing the following procedures, follow the safety instructions in your Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer. NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer. 1.
Back to Contents Page Processor Module Dell™ Latitude™ D620 Service Manual Removing the Processor Module Installing 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.
Installing the Processor Module NOTICE: Ensure that the cam lock is in the fully open position before seating the processor module. Seating the processor module properly in the ZIF socket does not require force. NOTICE: A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket. 1.
Back to Contents Page Display Assembly Dell™ Latitude™ D620 Service Manual Removing the Display Assembly Removing the Display Bezel Removing the Display Panel Installing the Display Panel Removing the Display Hinges Removing the Display Assembly CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.
1 antenna cables 12. 2 display cable Lift the display assembly out of the computer base. Removing the Display Bezel 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. You can do so by touching an unpainted metal surface. 1.
1 screw covers/display bumpers (6) 4 top cover 2 M2.5 x 5-mm screws (6) 3 display bezel Removing the Display Panel 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. You can do so by touching an unpainted metal surface. 1.
Installing the Display Panel 1. Replace the eight M2 x 3-mm screws that secure the display panel to the top cover. 2. Route the display-feed flex cable and antenna cables so that they rest in the notch located in the bottom edge of the top cover. 3. Replace the display bezel. Removing the Display Hinges CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.
Back to Contents Page Fan Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
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Back to Contents Page Hard Drive Dell™ Latitude™ D620 Service Manual NOTE: You need the Operating System CD to install the Microsoft® Windows® operating system. You also need the Drivers and Utilities CD for your computer to install the drivers and utilities on the new hard drive. CAUTION: If you remove the hard drive from the computer when the drive is hot, do not touch the metal housing of the hard drive.
Back to Contents Page Hinge Cover Dell™ Latitude™ D620 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as a connector on the back of the computer). NOTICE: The hinge cover is fragile and can be damaged if extreme force is used.
Back to Contents Page Keyboard Dell™ Latitude™ D620 Service Manual Removing the Keyboard 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. 1.
1 keyboard Back to Contents Page 2 system board connector
Back to Contents Page Memory Dell™ Latitude™ D620 Service Manual DIMM A DIMM B CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: If your computer has only one memory module, install the memory module in the connector labeled "DIMMA.
1 securing clips (2 per connector) 5. 2 memory module Ground yourself and install the new memory module: NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure. a. b. Align the notch in the module connector with the tab in the connector slot. Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.
1 securing clips (2 per connector) 2 memory module NOTICE: Insert memory modules at a 45-degree angle to avoid damaging the connector. 4. Ground yourself and install the new memory module: NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure. a. b. 5. Align the notch in the module edge connector with the tab in the connector slot.
Back to Contents Page Communications Cards Dell™ Latitude™ D620 Service Manual Wireless Local Area Network (WLAN) Card Mobile Broadband Card Subscriber Identity Module (SIM) Card Wireless Local Area Network (WLAN) Card If you ordered a WLAN card with your computer, the card is already installed. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 1. Follow the procedures in Before You Begin. 2.
1 WLAN card 2 metal securing tabs (2) NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card. NOTE: Do not insert a Mobile Broadband card into the WLAN card slot. 5. 1 To install a WLAN card: a. Move any antenna cables out of the way to make space for the WLAN card. b. Align the WLAN card with the connector at a 45-degree angle, and press the card into the connector until you feel a click.
1. Follow the procedures in Before You Begin. 2. Remove the hinge cover (see Hinge Cover). 3. Remove the keyboard (see Keyboard). 1 Mobile Broadband card 2 antenna wires (2) NOTICE: To prevent damage to the connector, do not use tools to spread the securing clips. 4. If a Mobile Broadband card is not already installed, go to step 5. If you are replacing a Mobile Broadband card, remove the existing card: a. 1 Disconnect the Mobile Broadband card from any attached cables.
1 Mobile Broadband card 2 antenna wires (2) NOTICE: To avoid damaging the Mobile Broadband card, never place cables on top of or under the card. NOTE: For more specific information about which cable to connect to which connector, see the documentation that came with your Mobile Broadband card. 6. Connect the antenna cable or cables to the Mobile Broadband card, ensuring that you route the cables correctly.
Back to Contents Page Modem Dell™ Latitude™ D620 Service Manual CAUTION: Before you begin the following procedure, see the safety instructions in the Product Information Guide. NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer (see Before Working Inside Your Computer).
Back to Contents Page Microphone Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
Back to Contents Page Media Bay Devices Dell™ Latitude™ D620 Service Manual NOTE: If the device security screw is not present, you can remove and install devices while the computer is running and connected to a docking device (docked). 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. If present, remove the device security screw from the bottom of the computer. 2.
Back to Contents Page Palm Rest Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
NOTICE: Carefully separate the palm rest from the base plastics to avoid damage to the palm rest. 13. Remove the palm rest. a. b. 14. 1 Starting at the back center of the palm rest, use your fingers to separate the palm rest from the base plastics by lifting the inside edge of the palm rest. After the back of the palm rest is unsnapped, push the palm rest forward to unhook the remainder of the palm rest from the front of the base. Disconnect the touch pad connector from the system board.
Back to Contents Page PC Card Reader Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
Back to Contents Page Speaker Dell™ Latitude™ D620 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. You can do so by touching an unpainted metal surface. 1. Follow the instructions in Before Working Inside Your Computer. 2.
Back to Contents Page System Board Dell™ Latitude™ D620 Service Manual Removing the System Board Installing 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. You can do so by touching an unpainted metal surface.
1 M2.5 x 5-mm screws (5) 19. Remove the four 5-mm hex screws on the back of the computer. 20. Lift the system board out and away from the base plastics. Installing the System Board 1. Perform all the steps in Removing the System Board in reverse order. NOTE: When installing the system board, ensure that you align the wireless switch on the base with the switch on the system board.
2. Insert the battery into the battery bay. See Before Working Inside Your Computer. 3. Connect the AC adapter to the computer and to an electrical outlet. NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 4. Turn on the computer. NOTE: After replacing the system board, enter the computer Service Tag into the BIOS of the replacement system board. 5.
Back to Contents Page System Components Dell™ Latitude™ D620 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.
17 processor thermal-cooling assembly 18 Mobile Broadband card 19 WLAN card 20 display-feed flex cable 21 antenna cables 22 display hinge Back to Contents Page
Back to Contents Page Processor Thermal-Cooling Assembly Dell™ Latitude™ D620 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.
1. Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly). NOTE: The original pad can be reused if the original processor and heat sink are reinstalled together. If either the processor or heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved. 2. Peel the backing off the thermal cooling pad and adhere the pad to the portion of the thermal-cooling assembly that covers the processor. 3.
Back to Contents Page Dell™ Latitude™ D620 Service Manual NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. Information in this document is subject to change without notice. © 2006 Dell Inc. All rights reserved.
