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and is used by Dell Inc. under license. 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. March 2005 Rev. A00 Before You Begin Internal Card With Bluetooth® Wireless Technology System Components Coin-Cell Battery Keyboard Secure Digital Card Reader Hinge Covers Speaker Display Assembly System Board Memory Module, Mini PCI Card, Modem, and Devices Power Button Hard Drive Audio Connector Clip Thermal-Cooling Assembly Flashing the BIOS Palm Rest Pin Assignments for I/O Connectors 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. Back to Contents Page Before You Begin Dell™ Latitude™ X1 Service Manual Preparing to Work Inside the Computer Recommended Tools Computer Orientation Screw Identification Preparing to Work Inside the Computer 1. Ensure that the work surface is flat and clean to prevent scratching the computer cover. 2. Save any work in progress and exit all open programs. 3. Turn off the computer and all attached devices. 4. If the computer is connected to a docking device, undock it. 5. Disconnect the computer from the electrical outlet. 6. To avoid possible damage to the system board, wait 10 to 20 seconds and then disconnect any attached devices. 7. Disconnect all other external cables from the computer. 8. Close the display and turn the computer upside down on a flat work surface. 9. Slide the battery-bay latch releases on the bottom of the computer, and then remove the battery from the bay. 10. Remove any installed Secure Digital or CompactFlash cards. Recommended Tools The procedures in this manual require the following tools: CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in Dell's product documentation, or as directed by Dell's online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. NOTICE: 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. NOTICE: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a microprocessor by its edges, not by its pins. NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer. NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the computer operating system, press and hold the power button for 4 seconds. NOTICE: To avoid damaging the system board, you must remove the battery before you service the computer. l #1 Phillips screwdriver l #0 Phillips screwdriver l .-inch flat-blade screwdriver l Small plastic scribe l Flash BIOS update program floppy disk or CD Computer Orientation Screw Identification When you are removing and replacing components, print this section as a tool to lay out and keep track of the screws. The placemat provides the number of screws and their sizes. 1 back 2 right 3 front 4 left Modem: (1 each) Keyboard: (7 each) Display Hinges: (2 each) (2 each) Back to Contents Page Display Bezel: (4 each) Thermal Assembly: (4 each) Display Bracket: (4 each) Speaker: (2 each) Secure Digital Card Reader (3 each) Palm Rest: (7 each) System Board: (5 each) Internal card with Bluetooth® wireless technology (1 each) Back to Contents Page Flashing the BIOS Dell™ Latitude™ X1 Service Manual 1. Ensure that the AC adapter is plugged in and that the battery is installed properly. 2. Connect an external floppy or CD drive to the computer. 3. Insert the flash BIOS update program floppy disk or CD and turn on the computer. Follow the instructions that appear on the screen. The computer continues to boot and updates the new BIOS. When the update is complete, the computer automatically reboots. 4. Press