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Dell™ XPS™ L401X Service Manual
Before You Begin Camera Module
Battery Top Cover
Memory Module(s) Speakers
Wireless Mini-Card(s) Processor Fan and Heat-Sink Assembly
Hard Drive Processor Module
Optical Drive Daughter Board
Palm-Rest Assembly Internal Card With Bluetooth® Wireless Technology
Keyboard AC-Adapter Connector
Power-Button Board System Board
Coin-Cell Battery Flashing the BIOS
Display
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps y
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Back to Contents Page Battery Dell™ XPS™ L401X Service Manual Removing the Battery Replacing the 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. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by
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Back to Contents Page Before You Begin Dell™ XPS™ L401X Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer This manual 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. l You have read the safety information tha
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CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device. 3. Disconnect all telephone or network cables from the computer. 4. Press and eject any installed cards from the Media Card Reader. 5. Disconnect your computer and all attached devices from their electrical outlets. 6. Disconnect all attached devices from your computer. CAUTION: To help prevent damage to the system board, remo
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Back to Contents Page Flashing the BIOS Dell™ XPS™ L401X Service Manual The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS: 1. Turn on the computer. 2. Go to support.dell.com/support/downloads. 3. Locate the BIOS update file for your computer: NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. If you have your computer's Service Tag: a. Click Enter a Servic
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Back to Contents Page ® Internal Card With Bluetooth Wireless Technology Dell™ XPS™ L401X Service Manual Removing the Bluetooth Card Replacing the Bluetooth Card 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. CAUTION: Only a certified service technician should perform repairs on your c
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1 Bluetooth card 2 tab 3 Bluetooth-card cable Replacing the Bluetooth Card 1. Follow the instructions in Before You Begin. 2. Slide the Bluetooth card into the slot on the top cover and secure it in place. 3. Connect the Bluetooth-card cable to the connector on the Bluetooth card. 4. Follow the instructions from step 9 to step 11 in Replacing the Top Cover. 5. Replace the display assembly (see Replacing the Display Assembly). 6. Replace the keyb
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Back to Contents Page Camera Module Dell™ XPS™ L401X Service Manual Removing the Camera Module Replacing the Camera Module 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. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is
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Replacing the Camera Module 1. Follow the instructions in Before You Begin. 2. Use the alignment posts on the display back cover to place the camera module in position. 3. Adhere the aluminum foil over the camera module. 4. Replace the display panel (see Replacing the Display Panel). 5. Replace the display bezel (see Replacing the Display Bezel). 6. Replace the display assembly (see Replacing the Display Assembly). 7. Replace the keyboard (se
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Back to Contents Page Coin-Cell Battery Dell™ XPS™ L401X Service Manual Removing the Coin-Cell Battery Replacing 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. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servi
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3. With the adhesive side of the coin-cell battery facing down, press the coin-cell battery on the slot on the top cover. 4. Replace the palm-rest assembly (see Replacing the Palm-Rest Assembly). 5. Follow the instructions from step 5 to step 6 in Replacing the Optical Drive. 6. Replace the hard drive (see Replacing the Hard Drive). 7. Replace the memory module(s) (see Replacing the Memory Module(s)). 8. Replace the battery (see Replacing the Battery
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Back to Contents Page Daughter Board Dell™ XPS™ L401X Service Manual Removing the Daughter Board Replacing the Daughter 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. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that
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1 daughter-board cable 2 daughter board 3 screw Replacing the Daughter Board 1. Follow the instructions in Before You Begin. 2. Align the connectors on the daughter board with the slots on the top cover and place it on the top cover. 3. Replace the screw that secures the daughter board to the top cover. 4. Slide the daughter-board cable into the connector on the daughter board and press the connector latch down to secure the cable. 5. Replace the proces
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Back to Contents Page AC-Adapter Connector Dell™ XPS™ L401X Service Manual Removing the AC-Adapter Connector Replacing the AC-Adapter Connector 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. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due
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1 screw 2 AC adapter connector 3 AC-adapter connector cable Replacing the AC-Adapter Connector 1. Follow the instructions in Before You Begin. 2. Align the screw hole on the AC-adapter connector with the screw hole on the top cover. 3. Replace the screw that secures the AC-adapter connector to the top cover. 4. Route the AC-adapter connector cable through the routing guide. 5. Connect the AC-adapter connector cable to the system-board connector.
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Back to Contents Page Display Dell™ XPS™ L401X Service Manual Display Assembly Display Bezel Display Panel Display Cable Display-Panel Brackets 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. CAUTION: Only a certified service technician should perform repairs on your computer
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CAUTION: Be extremely careful when opening the display to prevent damaging the display assembly. 10. Turn the computer over and open the display as far as possible. 11. Disconnect the speaker cable from the system-board connector. 12. Disconnect the display cable from the system-board connector. 13. Note the routing of the display cable and remove the cable from the routing guide. 14. Note the routing of the Mini-Card antenna cables and slide them up through t
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10. Follow the instructions from step 5 to step 6 in Replacing the Optical Drive. 11. Replace the hard drive (see Replacing the Hard Drive). 12. Replace the Mini-Card(s) (see Replacing the Mini-Card(s)). 13. Replace the memory module(s) (see Replacing the Memory Module(s)). 14. Replace the battery (see Replacing the Battery). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure
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Removing the Display Panel 1. Follow the instructions in Before You Begin. 2. Remove the display assembly (see Removing the Display Assembly). 3. Remove the display bezel (see Removing the Display Bezel). 4. Disconnect the camera cable from the connector on the camera module. 5. Remove the eight screws that secure the display panel to the display back cover. 6. Note the routing of the Mini-Card antenna cables and remove them from the routing guides
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Removing the Display Cable 1. Follow the instructions in Before You Begin. 2. Remove the display assembly (see Removing the Display Assembly). 3. Remove the display bezel (see Removing the Display Bezel). 4. Remove the display panel (see Removing the Display Panel). 5. Turn the display panel over and place it on a clean surface. 6. Pull the pull-tab to disconnect the display cable from the connector on the display panel. 1 display cable 2 pul
